EM91440 series tone/pulse switchable dialers that composed dialer dial

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EM91440 series tone/pulse switchable dialers that composed dialer dial

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EM91440 SERIES EM91440 SERIES
EM91440 series tone/pulse switchable dialers that composed dialer dialer with 40-set memories. EM91440 series provide necessary functions telephone application environment, such Pulse dialing, Tone (DTMF) dialing, Handfree dialing, keying tone ,and lock functions. lock function designed inhibit toll dialing operation. Beside this, melody generator, ring detector (Serial Data Output) functions provided advance version. Melody generator will output dual-tone music line hold duration. Ring detector prevent illegal dialing from pocket dialer. designed drive driver voice synthesizer. this application, dialing numbers displayed screen with EM32100 EM32116
FEATURES
Tone/Pulse switchable. Wide operating voltage from operating current, 0.15 (Pulse) (Tone) typically. Adding resistor keyboard scan that select many telephone specifications, such Pulse rate, ratio, Flash time, lock dialing functions. function supports driver voice synthesizer indicate dialing numbers. Line hold function designed stopping conversation temporality. Melody generator provides music hold function. Lock function provides conventionality lock password lock operations. Ring detector designed prevent illegal dialing from pocket dialer. 40-set three touch repertory memory, each hold data digits. 32-digit (last number) redial memory. Keytone function provides rapidly keying recognition. Handfree function provides on-hook dialing speakerphone application. Pause time fixed seconds. Tone duration inter-tone pause time fixed Using 3.579545 crystal ceramic resonator. Package forms: PDIP, skinny.
ORDERING INFORMATION
Versions list function outline VERSION EM91440A EM91440B EM91440C EM91440D Note Pocket Dialer Prevented HOLD(music) LOCK SDO(LCD)
This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
EM91440
Assignment
EM91440AP
COL5 COL4/KT COL3 COL2 COL1 XOUT XMUTE ROW4 ROW3 ROW2 ROW1 DTMF
EM91440BP
COL5 COL4/KT COL3 COL2 COL1 XOUT XMUTE ROW4 ROW3 ROW2 ROW1 DTMF
EM91440CK
COL5 COL4/KT COL3 COL2 COL1 XOUT XMUTE ROW4 ROW3 ROW2 ROW1 DTMF
EM91440DK
COL5 COL4/KT COL3 COL2 COL1 XOUT XMUTE DRING ROW4 ROW3 ROW2 ROW1 DTMF RMUTE
Keyboard Arrangement
ROW1 ROW2 ROW3 ROW4
COL1
COL2
COL3
COL4/KT RD/P
COL5
This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
FUNCTIONAL BLOCK DIAGRAM
RMUTE COL1 COL2 COL3 COL4/KT COL5 XMUTE Row/Column programming counter
Keyboard interface (column)
Output circuit
Memory (Melody) XOUT Oscillator
latch decoder
converter
DTMF
Timing/Control circuit ROW1 ROW2 ROW3 ROW4 DRING Keyboard interface (Row) Input circuit Pulse generator
DESCRIPTIONS
Symbol ROW1~ROW4 Function Keyboard scan pins group. idle state (HKS "High" "Low"), these pins stay "High impedance" level prevent power consumption. Otherwise, these pins switch "High" level detecting keyboard entry. These pins will output signal while keyboard scanning. Keyboard scan pins column group. idle state, these pins stay "High impedance" level. Otherwise these pins switch "Low" level detecting keyboard entry. These pins will output signal while keyboard scanning. fourth column group keyboard that also provides keytone output Normally, this stays "Low" level detecting keyboard entry. After valid keyboard entry, this will output keying confirmation tone that signal duration. prevent signal interference, while DTMF issue, will disable tone output except function key. Oscillator input output pins. 3.579545 crystal ceramic resonator must crossed connection XOUT pins which generate system clock. Tone/Pulse MUTE signal output that NMOS open-drain output structure. This will switch "Low" level during Tone/Pulse dialing hold function Otherwise, this stays "High impedance" level. Positive negative power supply input pins. Recommended operating voltage from 2.0Vdc 5.5Vdc. Handfree inputs which accepts falling edge signal turn "on" turn "off" handfree function. This hysteresis input structure built-in pull resistor (typically Kohms). Handfree outputs that designed control telephone line on-hook dialing control speakerphone circuit handfree conversation. When handfree function executed, this will switch to"High". Otherwise, this stays "Low" level. DTMF (Dual Tone Multi-Frequency) music signals output pin. Normally, this stays "Low" level. Tone dialing mode, this will output DTMF signal that corresponding keyboard keys. Beside this, line hold duration, this will issue dual-tone music telephone line.
10.1.1997
COL1~COL3 COL5
COL4/KT
XOUT XMUTE
DTMF
This specification subject changed without notice.
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
Symbol
Function Control signal inputs that corresponding hook switch status. When handset left from cradle, this must connected "Low" level operate functions. Otherwise, this must connected "High" level disable function prevent power consumption. Pulse signal outputs that NMOS open-drain output structure. Normally, this stays "High impedance" level. Pulse dialing mode keypad entry. This will output pulse trains signal that corresponding keyboard keys. Hold function output that CMOS structure.Normally, this stays "Low" level. When Hold function executing, this will output "High" level. This designed drive peripheral circuit indicate line Hold status. function output that NMOS open-drain structure. When there valid entry keyboard, this will output serial data. This serial data designed drive driver display dialing number screen drive voice synthesizer announce dialing number speaker. ring signal detect input which internal pull (built-in Kohms resistor). While Tel-ring incoming, this must connected "Low" with delay indicate ringing Otherwise, this must connected "High" level Ring mute output that NMOS open-drain structure. RMUTE designed control microphone handset prevent illegal dialing from pocket dialer. DRING "High" level then Off-Hook turn Handfree this will output "Low" level. other words, DRING used check phone that receives incoming call (DRING =Low input) make outgoing call (DRING= High input) phone user make outgoing call ,then RMUTE activated prevent illegal dialing from pocket dialer particular application.The RMUTE restored "High" level when first entry optioned lock-number connection.
DRING
RMUTE
This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
FUNCTION DESCRIPTIONS Dialing signal selection
EM91440 series incorporated special keyboard scanning function that connecting resistor (typically Kohms) keyboard scan select many telephone specifications. specifications described following Mode ROW1 Mode R-Vdd Tone R-Vss Flash time ROW3 ROW4 R-Vss R-Vss R-Vss R-Vss Lock number COL2 COL3 R-Vss R-Vss R-Vss R-Vss ratio ROW2 40:60 R-Vss 33:66 Lock control method COL1 Control method R-Vdd lock none lock R-Vss password lock
(ms) Lock number none
Normal dialing
Directly keying digital keyboard which number dialing output stored memory automatically. Operating procedure described follow select Pulse Tone mode. Off-hook turn function. Keying expressed digital keypad that included 1~9, keys. expressed unlimited. numbers will dialed Pulse Tone mode selection.
redial memory
Storing: normal dialing mode, every digital entry which number will stored memory automatically. entry digits more than digits, redial function memory will disabled. Otherwise, these numbers stored memory redial output. This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
Redialing: After normal dialing, directly keying On-Off hook once) keying keyboard. numbers that stored into memory will dialed output.
Repertory memory
EM91440 series incorporated several sets repertory memory each store number digits. These memories were designed sets types. memory storing, stored numbers more than digits that only previous digits stored into specific memory. Otherwise, these numbers stored entirely. After memory dialed out, content keeping current data. Memory types Indirect (three-touch) operation Off-hook turn function), push (ST, numbers will stored into memory location expressed digital number from
Dialing (after memory dialed out, content keeping current data) Indirect (three-touch) memory select Pulse Tone mode. Off-hook Turn function), push key. numbers that stored indirect memory location will dialed Pulse Tone mode selection expressed digital number from Pause operation Pause designed support pause operation dialing duration. stored memory will occupy digital position. select Pulse Tone mode. Off-hook turn function), push (d1, RD/P, kn.) These numbers will dialed following sequence: Pulse Tone (*/T) operation Pulse Tone (*/T) designed support toll dialing (long distance call) PABX system operation. "*/T" stored memory will occupy digital position. select Pulse mode. Off-hook turn function), push */T, These numbers will dialed following sequence: Tpt, (pulse mode) (tone mode) This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
Flash operation Flash designed break telephone line temporarily. After depressed, this dialer will send flash signal break line ROW3 ROW4 selection. Handfree (HF) function handfree function designed support on-hook dialing loudspeaker application which turn "on" "off" with falling edge signal from pin. During handfree function executed, switched "high". Otherwise stays "low" level. following operations turn Handfree function (HFO return "Low"). On-off hook once. Trigger with falling edge signal. Turn Hold (HD) function. (HDO switched "High") Hold (HD) function Hold function designed stop conversation temporarily. off-hook state function turned on), press keyboard, Hold function turned "on" (HDO switched "High"). following operations turn Hold function (HDO switched "Low"). On-off hook once. press over Turn Handfree (HF) function. (HFO switched "High") Special Note: delay time (Tdly) first Off-Hook turn Handfree that special designed avoid rapid entry (dummy number this time duration ,and long distance call number follows. example, Off-Hook ,1,2,3. Dummy Lock number dummy number detected centered office PABX ,but following numbers ,1,2,3. long distance call dialed normally since leading number Lock-number defined EM91440 series. prevent unavoidable long distance call, then EM91440 inhibits entry during Tdly.
This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
Operating flow chart
HKS=Lo On-hook Hand-free State On-hook State HKS=Hi Off-hook State On-hook Hold-line State HKS=Hi HKS=Lo Off-hook Hold-line State
HKS=Lo
HKS=Hi
Off-hook Hand-free State
<Note> Handfree Hold Truth table Operating state Input/Output level XMUTE On-hook, idle state Off-hook line Off-hook, line On-hook, line Off-hook, line On-hook, line Note F=floating (high impedance); H=logic "High"; L=logic "Low" level.
Music Hold EM91440 series built-in melody generator generate dual-tone music DTMF output pin. music designed telephone line line holding. (Serial Data Output) function serial data output which format same UART protocol. function designed drive driver voice synthesizer. dialing numbers display screen with EM32100 EM32116 signal consists start bits, data bits stop bits. Each time about (256 output sequences following start bits, data bits (LSB MSB) stop bits.
ready
start bits
bit1
bit2 bit3 data bits
bit4
bit5
stop bits
This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
Keypad Encoded table: Digital (b5,b4=0,0) keypad output b3,b2,b1,b0 0001 0010 0011 0100 0101 0110 0111 Display Function (b5,b4=1,0) keypad Hold output b3,b2,b1,b0 0000 1000 Display STORE HOLD Function (b5,b4=1,1) keypad output b3,b2,b1,b0 1101 Display
"*"/T
*/"T"
1000 1001 1010
1011 1100
1101 1110
1010 Speaker
1110
1111 clear display
(Lock state) 0001 Lock
<Note> display panel "ST","Hold","HF","A","RD", corresponding EM32116 with flag types. Keypad,SDO format display reference table: Keypad "*"/T */"T" HOLD (Lock state) bit5 bit4 bit3 bit2 bit1 bit0 Display STORE HOLD Speaker clear display Lock
This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
LOCK function EM91440 series provides LOCK function inhibit toll dialing operation. Connecting resistor COL1 select different LOCK control method that conventional lock password lock. Also lock number that selected connecting resistors COL2 COL3 pin. After power reset, password fixed automatically. lock function disabled when password equal setup password LOCK function password control mode. (Connects resistor COL1 VSS) hook turn function) Push ops1 ops2 ops3 nps1 nps2 nps3 ops1~ops3 same with current password, then nps1~np3 will stored dialer replace current password. Otherwise, current password updated. numbers pressed password setup procedure dialed when current password equal 000. current password equal 000, then only first number will dialed out. Normal dialing lock function none lock mode (without resistor connected COL1 pin) password equal 000. this case, dialer operated normal mode functions work unlimitation. Dialing LOCK function Conventional lock mode. (Connects resistor COL1 VDD) hook turn function) Keying first number (d1) same with lock number that optioned table, then entry numbers dialed keyboard will inhibited until hook once again. first number equal lock number, entry numbers will dialed out. Password control mode. (Connects resistor COL1 VSS) hook turn function) Keying telephone number.) numbers symbol could omitted. number will inhibited when current password equal 000,and work checking state, dialed out. Other descriptions following Incorrect password entry. telephone numbers dialed out. Password omitted first digit telephone numbers same with lock number, telephone numbers dialed keyboard will inhibited until hook once again. first digit equal lock number then telephone numbers will dialed entirely. Correct password entry. telephone numbers dial matter what lock number
Ring detector
Ring detector designed prevent illegal dialing from pocket dialer. Following procedures i,ii,iii this dialer will detect DRING control RMUTE output level. DRING detected "Low" level, RMUTE stays "High impedance". DRING detected "High" level, RMUTE will output "Low" until This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
keyboard entry. actual application RMUTE recommended connection microphone phone handset prevent that dialing signal (DTMF) coupling Microphone phone handset. (such pocket dialer) idle state, from "High" "Low" (pick handset action). idle state, turn handfree function. iii. flash operation
ABSOLUTE MAXIMUM RATINGS(Ambient temperature voltages referenced VSS)
Items Power supply voltage Input voltage range Operating temperature Storage temperature Power consumption Sym. TOPR TSTO Rating -0.3V VDD+0.3V Unit
ELECTRICAL CHARACTERISTICS
(Ambient temperature VDD=2.5V unless otherwise noted, voltages referenced VSS, Fosc=3.579545 MHz)
Parameter Operating voltage Operating current(HKS=0) Pulse Tone Pulse Tone Pulse Tone HKS=1 HKS=0 HKS=1 HKS=0
Sym.
Min.
Typ.
Max. Unit
Condition unload unload with pull up/down resistor HKS=1,Vdd=1V unload with pull up/down resistor
Memory retention current Standby current
Imrt Istby
HKS, DRING pins: input voltage pins source current HFO, XMUTE, RMUTE pins: sink current XMUTE, RMUTE pins: leakage current input resistance DRING input resistance Keyboard scanning pins output current (except COL4/KT) COL4/KT source current sink current
Rhfi Rdring
0.15 0.15 0.001 0.001 -0.001 0.8Vdd 0.2Vdd -0.2 ±0.001
Vhfi Vdeing=Vss Vksn=Vss ksn=Vdd Vo=2.0V Vo=0.5V
10.1.1997
This specification subject changed without notice.
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
ELECTRICAL CHARACTERISTIC
(Ambient temperature 25°C, VDD=2.5V unless otherwise noted, voltages referenced Vss,Fosc=3.579545 MHz)
Parameter Keyboard debounce time tone signal: frequency duration Pause time Pulse Tone waiting time Flash time
Sym.
Min. -0.2
Typ. 40:60 33:66 (-23.3) (-25.3)
Max. Unit
Condition
Pulse rate Make/Break ratio Inter-digit pause time DTMF pin: sink current DTMF signal level DTMF signal: level pre-emphase distortion load resistance Minimum tone duration Minimum inter-tone pause Melody output signal: main tone level Sub-tone release hold function debounce time every time Off-Hook delay time
Tidp Vdtmf Twist Titp
sec. sec. Row3B, Row4B=NR, Row3B, Row4B=NR, R-Vss Row3B,Row4B=R-Vss, Row3B,Row4B=R-Vss,R-Vss Row1 R-Vdd Row1 R-Vss Row2 Row2 R-Vss Vdtmf 0.75 2.0V 5.5V mVrms group Column 23dB Memory dialing (dBm) mVms =2.0V 5.5V (dBm) mVms =2.0V 5.5V
Vmtac Vstac Thdrdb Tbit Tdly
This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
DTMF output frequency (fosc 3.579545 MHz)
Keyboard scan ROW1 (f1) ROW2 (f2) ROW3 (f3) ROW4 (f4) COL1 (f5) COL2 (f6) COL3 (f7) CCITT standard (Hz) 1209 1336 1477 Actual output (Hz) 699.1 766.2 847.4 947.9 1215.8 1331.6 1471.8 Deviation 0.30 0.49 -0.53 0.73 0.56 -0.32 -0.35
This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
TIMING DIAGRAM
XMUTE Tidp DTMF OSC. Tdly
Hi-impedance
Tidp
Figure Pulse mode operating timing
XMUTE DTMF OSC.
Hi-impedance
Titp
Titp
Figure DTMF mode operating timing
This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
LNB=2,3 XMUTE DTMF OSC. Tdly
Hi-impedance
RD/P
Tidp Tidp
Figure Pulse mode redial timing
LNB=2,3 XMUTE DTMF OSC. Tdly
Hi-impedance
RD/P
Titp
Titp
Figure DTMF mode redial timing
This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
XMUTE DTMF OSC.
Hi-impedance RD/P
Tidp
Tidp
Figure Pause operating timing
XMUTE DTMF OSC.
Hi-impedance
Figure Pulse Tone (PT) operating timing
XMUTE DTMF OSC.
Hi-impedance
Tfp=300ms
Figure Flash operating timing This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
Tbit
Hi-impedance
<Note>L=LSB,M=MSB, sT=START time, spT=STOP time Figure operating timing
XMUTE Thdrdb
MELODY Hi-impedance
triggled extension telephone hold function release Figure operating timing
Tdly OSC. digit dialing time Hi-impedance
Figure Off-Hook delay time This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
Toff RING DRING RMUTE
Figure Timing receiving incoming call external ring detection circuit must send signal total ring cycle (Ton Toff)
RING DRING RMUTE
Figure Timing making outgoing call
This specification subject changed without notice.
10.1.1997
SW1B HANDFREE HANDSET C945 1N4148 JP10 1N4148 C945 .1uF COL4/KT C945 AUDIO POWER AMPLIFER 100K 1N4148 1N4148 220K ROW1 220uF .01U 100K C945 1815 1N4148 EM32100 EM32100 1815 470K 470K 1N4148 .001U HOOK
100K
SW1A
ONHOOK
OFFHOOK
1N4148 220K
1N4148
BRIDGE
APPLICATION CIRCUIT
RING
220K
EM91440 series Application circuit
BRIDGE
ROW4
ROW3
ROW2
ROW1
DTMF
JUMPER 560k
JUMPER
RMUTE
PC817
560K
COL5
COL4/KT
COL3
COL2
COL1
XOUT
XMUTE
RD/P
DRING
This specification subject changed without notice.
560K 560K 560K JUMPER LINE SPEECH DRIVER 1.5V NETWORK
22U/50V
1.2M
DRING
EM91440DK
DRING
3.58MHz 560k 560k BUZZER
560k
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
10.1.1997
8/10 Digits Pannel
EM32100 Application Circuit
220k 220k DIODE DIODE DIODE 32768Hz C945 1.5V C945 100k
200k
XOUT 24/12 ENRTC
This specification subject changed without notice.
SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16
Package type pins chip form provided
EM32100
100k
SEG5 SEG4 SEG3 SEG2 SEG1 COM1 COM2 COM3 TEST2 TEST1 F32H
SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
10.1.1997
COM3 COM2 COM1 SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 SEG24 SEG23 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG0
SEG25 SEG24 SEG23 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10
This specification subject changed without notice. Package type pins chip form provided
Hook Switch detection circuit LINE
EM32116 Application Circuit
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
EM91440 SERIES
10.1.1997
LCD110
HOOK 100k C945 24/12 ENRTC ENCLND COM3 COM2 COM1 SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 .1µF
470k 32768Kz .1µF .1µF HOUR CALENDAR
EM32116
TEST2 BATCKOF BATLOW SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SRG6 SEG7 SEG8 SEG9
.1µF
XOUT F32HZ TEST1
1.5V
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
PACKAGE INFORMATION
Example 914XX ELAN MICRO. pefix Type number Package code: PPDIP KSkinny RSDIP 18/20/28 Lead Plastic Package
PDIP
MILIMETERS MIN. MAX. 5.334 0.381 0.356 0.558 1.150 1.778 0.204 0.381 22.35 23.37 7.620 8.255 6.096 7.112 2.286 2.794 10.92 2.921 4.064
PDIP
INCHES MILIMETERS INCHES MIN. MAX. MIN. MAX. MIN. MAX. .210 5.334 .210 .015 0.381 .015 .014 .022 0.356 0.558 .014 .022 .045 .070 1.150 1.778 .045 .070 .008 .015 0.204 0.381 .008 .015 .880 .920 25.40 26.67 1.000 1.050 .300 .325 7.620 8.255 .300 .325 .240 .280 6.096 7.112 .240 .280 .090 .110 2.286 2.794 .090 .110 .430 10.92 .430 .115 .160 2.921 4.064 .115 .160 MILIMETERS MIN. MAX. 6.350 0.381 0.356 0.558 1.016 1.778 0.204 0.381 35.56 37.85 15.24 15.88 13.21 14.73 2.286 2.794 17.78 2.921 5.080
PDIP
INCHES MIN. MAX. .250 .015 .014 .022 .040 .070 .008 .015 1.400 1.490 .600 .625 .520 .580 .090 .110 .700 .115 .200
This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
22/24 Lead Plastic Package-Skinny
PDIP (skinny)
MILIMETERS MIN. MAX. 4.752 0.381 0.356 0.558 1.27 1.778 0.204 3.556 25.90 26.67 7.620 8.255 6.223 6.604 2.286 2.794 8.382 10.16 2.921 4.064 INCHES MIN. MAX. .180 .015 .014 .022 .050 .070 .008 .014 1.02 1.05 .300 .325 .245 .260 .090 .110 .330 .400 .115 .160
PDIP (skinny)
MILIMETERS MIN. MAX. 4.572 0.381 0.356 0.558 1.27 1.778 0.204 0.381 31.24 32.26 7.620 8.255 6.223 6.731 2.286 2.794 8.636 9.652 2.921 4.064 INCHES MIN. MAX. .180 .015 .014 .022 .050 .070 .008 .015 1.23 1.270 .300 .325 .245 .265 .090 .110 .340 .380 .115 .160
This specification subject changed without notice.
10.1.1997
EM91440 SERIES
TONE/PULSE SWITCHABLE DIALER WITH INTERFACE DUAL-TONE MELODY GENERATOR
SDIP Package
SDIP
MILIMETERS MIN. MAX. 5.08 0.381 3.937 4.191 0.356 0.559 0.914 1.116 0.204 0.304 36.70 37.34 13.84 14.10 1.727 1.829 15.24 17.78 0.127 2.921 3.429 INCHES MIN. MAX. 0.200 0.015 0.155 0.165 0.014 0.022 0.036 0.044 0.008 0.012 1.445 1.470 0.545 0.555 0.068 0.072 0.600 0.70 0.005 0.115 0.135
This specification subject changed without notice.
10.1.1997

EM91440 series tone/pulse switchable dialers that composed dialer dial

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