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TONE / PULSE DIALER WITH LCD INTERFACE TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION AND I.P.P. DETECT FUNCTION

EM91450 SERIES EM91450 SERIES

TONE / PULSE DIALER WITH LCD INTERFACE TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION AND I.P.P. DETECT FUNCTION
EM91450 SERIES EM91450 SERIES
GENERAL DESCRIPTION
FEATURES
· I.P.P. detect function prevents the illegal connect external phone. · SDO function supports LCD driver and voice synthesizer to indicate dialing numbers and function operating icons. · Lock function provides conventionality key lock and password lock operations. · Ring detector is designed to prevent illegal dialing from pocket dialer. · Line hold function is designed for stopping conversation temporality. · Tone / Pulse switchable. · Wide operating voltage from 2.0 V to 5.5 V. · Low operating current, 0.15 mA (Pulse) and 0.3 mA (Tone) typically. · Adding resistor on keyboard scan pin that can select many telephone specifications, such as : Pulse rate, M / B ratio, Flash time, lock dialing functions. · 13 set one touch or (3 set one touch and 10 set two touch) repertory memory, each one can hold data up to 16 digits. · A 32-digit LNB (last number) redial memory. · Keytone function provides rapidly keying recognition. · Handfree function provides on-hook dialing and speakerphone application. · Pause and P-T time are fixed to 3.6 seconds. · Tone duration and inter-tone pause time are fixed to 98 ms. · Using 3.579545 MHz crystal or ceramic resonator. · Package forms: PDIP, skinny.
ORDERING INFORMATION
SDO(LCD)
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
EM91450
Pin Assignment
EM91450AP
COL4 / KT COL3 COL2 COL1 XIN XOUT XMUTE VSS 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 PO ROW4 ROW3 ROW2 ROW1 HKS VDD DTMF
EM91450BP
COL4 / KT COL3 COL2 COL1 XIN XOUT XMUTE VSS HFI 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 PO ROW4 ROW3 ROW2 ROW1 HKS VDD DTMF HFO
EM91450CP
SDO COL4 / KT COL3 COL2 COL1 XIN XOUT XMUTE VSS HFI 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 HDO PO ROW4 ROW3 ROW2 ROW1 HKS VDD DTMF HFO
EM91450DK
SDO COL4 / KT COL3 COL2 COL1 XIN XOUT XMUTE VSS HFI DRING 1 2 3 4 5 6 7 8 9 10 11 22 21 20 19 18 17 16 15 14 13 12 HDO PO ROW4 ROW3 ROW2 ROW1 HKS VDD DTMF HFO RMUTE
Keyboard Arrangement
ROW1 ROW2 ROW3 ROW4
This specification are subject to be changed without notice.
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
FUNCTIONAL BLOCK DIAGRAM
SDO COL1 COL2 COL3 COL4 / KT Keyboard interface (column) Output circuit Row / Column programming counter HFO HDO RMUTE
XMUTE
I / O circuit
Memory
latch & decoder
D / A converter
XIN XOUT
Oscillator Timing / Control circuit
Keyboard interface (Row) VDD HFI HKS DRING Input circuit Pulse generator PO
PIN DESCRIPTIONS
COL1~COL3
COL4 / KT
XIN and XOUT XMUTE
VDD and VSS HFI
This specification are subject to be changed without notice.
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
Symbol HKS
DRING
RMUTE
This specification are subject to be changed without notice.
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
FUNCTION DESCRIPTIONS Dialing signal selection
Tf (ms) 600 100 80 300 Lock number none 0 9 0, 9
Normal dialing
Directly keying digital key on keyboard which number can be dialing output and stored in LNB memory automatically. Operating procedure described as follow : · To select Pulse or Tone mode. · Off-hook or turn on HF function. · Keying d1, d2, . , dn. The "d" expressed digital keypad that included 1~9, , 0, #, P, and PT keys. The "n" expressed unlimited. · The numbers d1, d2, . , dn will be dialed out in Pulse or Tone mode as selection.
LNB redial memory
Storing: In normal dialing mode, every digital key was entry which number will be stored in LNB memory automatically. If entry digits are more than 32 digits, the redial function of LNB memory will be disabled. Otherwise, these numbers stored in LNB memory can be redial output. This specification are subject to be changed without notice.
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
Redialing: After normal dialing, directly keying F key (or On-Off hook once) and keying RD key on keyboard. The numbers that are stored into LNB memory will be dialed output. Pause (P) key operation The Pause (P) key is designed to support pause operation in dialing duration. "P" key can be stored in memory and it will occupy one digital position. · To select Pulse or Tone mode. · Off-hook (or turn on HF function), push (d1, d2, . , dn, RD / P, k1, k2, . , kn.) These numbers will be dialed out as following sequence: d1, d2, . , dn, Tp, k1, k2, . , kn. Pulse to Tone ( / T) key operation The Pulse to Tone ( / T) key is designed to support toll dialing (long distance call) or PABX system operation. The " / T" key can be stored in memory and it will occupy one digital position. · To select Pulse mode. · Off-hook (or turn on HF function), push d1, d2, . , dn, / T, k1, k2, . , kn. These numbers will be dialed out as following sequence: d1, d2, . , dn, Tpt, k1, k2, . , kn. (pulse mode) (tone mode) Flash (F) key operation The Flash (F) key is designed to break telephone line temporarily. After F key is depressed, this dialer will send a flash signal to break line 600 ms, 300 ms, 100 ms or 80 ms as ROW3 and ROW4 selection. Handfree (HF) function The handfree function is designed to support on-hook dialing and loudspeaker application which can be turn "on" or "off" with falling edge signal from HFI pin. During handfree function is executed, the HFO pin is switched to "high". Otherwise the HFO pin stays "low" level. One of the following operations can turn off Handfree function (HFO pin return to "Low"). · On-off hook once. · Trigger HFI pin with falling edge signal. · Turn on Hold (HD) function. (HDO pin switched to "High") Hold (HD) function The Hold function is designed to stop conversation temporarily. In off-hook state (or HF function is turned on), to press HD key on the keyboard, the Hold function can be turned "on" (HDO pin switched to "High"). One of the following operations can turn off Hold function (HDO pin switched to "Low"). · On-off hook once. · To press HD key over 93 ms. This specification are subject to be changed without notice.
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
· Turn on Handfree (HF) function. (HFO pin switched to "High") Special Note: A 300 ms delay time (Tdly) at the first Off-Hook or turn on Handfree that is a special designed to avoid a rapid key entry (dummy number ) in this time duration , and a long distance call number follows. For example, Off-Hook , "3" , ...... , "0" , 1, 2, 3... Dummy key Lock number key The dummy number "3" is not detected by the centered office or PABX , but the following numbers "0" , 1, 2, 3.. long distance call can be dialed out normally since the leading number "3" is not the Lock-number defined in EM91450 series. To prevent the unavoidable long distance call, then EM91450 inhibits the key entry during Tdly. Operating flow chart
(3) Off-hook Hand-free State HF
(6) On-hook Hold-line State
(5) Off-hook Hold-line State
This specification are subject to be changed without notice.
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
SDO (Serial Data Output) function The SDO is serial data output which format is same as UART protocol. SDO function is designed to drive LCD driver and voice synthesizer. So the dialing numbers can be display on LCD screen with EM32100 (or EM32116 ). The SDO signal consists of two start bits, six data bits and two stop bits. Each bit time is about 3.9 ms (256 Hz) and output sequences are following by start bits, data bits (LSB to MSB) and stop bits.
1 stop bits
ready
0 start bits
bit2 bit3 data bits
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
Normal dialing : Set lock function to none lock mode (without resistor connected to COL1 pin) or set password equal to 000. In this case, the dialer is operated in normal mode and all functions work at unlimitation. Dialing via LOCK function Conventional key lock mode. (Connects a resistor on COL1 pin to VDD) · Off hook (or turn on HF function) · Keying : d1 , d2 , . , dn . If the first number (d1) is the same with the lock number that optioned in table, then all entry numbers can not be dialed out and keyboard will be inhibited until on to off hook once again or flash. If the first number is not equal to lock number, all the entry numbers will be dialed out. Password control mode. (Connects a resistor on COL1 pin to VSS) · Off hook (or turn on HF function) · Keying : ( # , ps1 , ps2 , ps3 + telephone number.) The numbers in the symbol could be omitted. The number "#" will be inhibited when the current password is not equal to 000, and ps1 , ps2 , ps3 work at the checking state, not to be dialed out. Other descriptions are as on following : Incorrect password entry. The telephone numbers can not be dialed out. Password is omitted . If the first digit of telephone numbers is the same with the lock number, all of the telephone numbers can not be dialed out and keyboard will be inhibited until On to Off hook once again or flash. If the first digit is not equal to the lock number then the telephone numbers will be dialed out entirely. Correct password entry. The telephone numbers can be dial out no matter what lock number is. If the first digit is not equal to the lock number then the telephone numbers will be dialed out entirely and use the Flash key to redial any other number will not check the pass word again.
Ring detector
The Ring detector is designed to prevent illegal dialing from pocket dialer. Following the procedures ( i, ii, iii ), this dialer will detect DRING pin to control RMUTE output level. If DRING is detected a "Low" level, the RMUTE stays "High impedance". If DRING is detected a "High" level, the RMUTE will output "Low" until keyboard entry. In actual application of the RMUTE pin is recommended connection to microphone of the phone handset to prevent that the dialing signal (DTMF) is coupling by the Microphone of the phone handset. (such as pocket dialer) i. In idle state, HKS is from "High" to "Low" (pick up handset action). ii. In idle state, turn on handfree function. iii. The flash operation ( F key ).
This specification are subject to be changed without notice.
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
I.P.P. DETECT function The EM91450 series provide the I.P.P. function to pretect illegal connect. I.P.P means Illegal Parallel Phone Detect. I.P.P. function depend on XMUTE pin and HKS, HF status. When in the ON-HOOK condition and HF turn off, the XMUTE pin will be a Input pin to detect the voltage lever, otherwises, the XMUTE pin will be a normally output pin use for control speech network. When I.P.P. function detect. XMUTE pin at "low" status (In On-Hook and HF turn OFF state), EM91450 will turn on HF and send alarm signal to telephone line. In alarm duration DTMF pin will continue sending "#", "8" "8" signal. The DTMF signal will interfere the illegal user until the illegal user hang up the phone and the XMUTE pin detect "high" again. The telephone circuit design can allow the legal internal connect user. (see I.P.P Application CIRCUIT).
This specification are subject to be changed without notice.
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
ABSOLUTE MAXIMUM RATINGS(Ambient temperature is 25 oC, all voltages referenced to VSS)
Items Power supply voltage Input voltage range Operating temperature Storage temperature Power consumption Sym. VDD VIN TOPR TSTO PD Rating 6.0 Vdc VSS-0.3V ~ VDD+0.3V 0 ~ 50 -55 ~ 125 500 Unit V V o C o C mW
DC ELECTRICAL CHARACTERISTICS
Min. 2.0 2.0 0.8VDD VSS VSS 0.9VDD 0.2 -0.2 2 200 0.2 0.2 -0.2 0.5 142 1 5
Typ. 0.15 0.3 1 10 200 10 400 160 2 -30 -
Max. Unit 5.5 5.5 0.3 0.5 0.1 0.1 10 0.1 30 VDD 0.2VDD 0.1VDD VDD 0.01 50 800 0.75 180 3 -23 V mA uA uA
Idd Imrt Istby
This specification are subject to be changed without notice.
HKS, HFI & DRING pins: input voltage Xmute pin : Schmitt triggers (input pin) HFO & HDO pins source current PO, HFO, XMUTE, RMUTE & SDO pins: sink current PO, XMUTE, RMUTE and SDO pins: leakage current HFI pin input resistance Keyboard scanning pins output current (except COL4 / KT) COL4 / KT source current sink current DTMF pin: sink current DTMF signal DC level DTMF signal: ac level pre-emphase distortion load resistance
ViH ViL VH-L VL-H IoH IoL IoH Rhfi IoH IoL IoH IoL IoL Vdc Vdtmf Twist THD ZL
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
AC ELECTRICAL CHARACTERISTIC
Parameter Keyboard debounce time Key tone signal: frequency duration Pause time Pulse to Tone waiting time Flash time
Sym. Tdb Fkt Tkt Tp Tpt Tf
Min. 96 96 3.8 -
Typ. 20 600 30 3.6 3.6 600 100 80 300 20 10 40:60 33:66 800 500 98 98 93 3.9 300
Max. Unit 100 100 4.1 ms Hz ms sec. sec. ms
Condition
Pulse rate Make / Break ratio Inter-digit pause time Minimum tone duration Minimum inter-tone pause HD key release hold function debounce time SDO bit time Off-Hook delay time
PSR MBR Tidp Tp Titp Thdrdb Tbit Tdly
This specification are subject to be changed without notice.
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
TIMING DIAGRAM
HKS KEY IN Tdb KT Tkt XMUTE SDO PO Tidp DTMF OSC. Tdly
Hi-impedance
Figure 1. Pulse mode operating timing
HKS KEY IN KT XMUTE SDO PO DTMF OSC.
Hi-impedance
Figure 2. DTMF mode operating timing
This specification are subject to be changed without notice.
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
Hi-impedance
Figure 3. Pulse mode LNB redial timing
Hi-impedance
Figure 4. DTMF mode LNB redial timing This specification are subject to be changed without notice.
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
HKS KEY IN KT XMUTE Tp SDO PO DTMF OSC. Tidp Tidp
Figure 5. Pause key operating timing
HKS KEY IN KT XMUTE Tpt 2 / T 3 4
Hi-impedance
SDO PO DTMF OSC.
Figure 6. Pulse to Tone (PT) operating timing
Hi-impedance
Figure 7. Flash key operating timing This specification are subject to be changed without notice.
Hi-impedance
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
HKS KEY IN Tdb KT SDO
b1 b2 b3 b4 b5 SPB SPB
Hi-impedance
HKS KEY IN HFO HDO XMUTE SDO PO HF HD HF HD HD HD HF HD HD @ 93 ms Thdrdb
MELODY Hi-impedance
@ : It can be triggled by extension telephone set for hold function release Figure 9. HF and HD operating timing
HFI or HKS KEY
KT Tdly OSC. "0" digit dialing time SDO
Hi-impedance
Figure 10. Off-Hook delay time This specification are subject to be changed without notice.
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
Toff RING Ton DRING HKS RMUTE
Figure 11. Timing of receiving an incoming call The external ring detection circuit must send a low signal at the total ring cycle (Ton and Toff)
RING DRING HKS RMUTE
Figure 12. Timing of making an outgoing call
This specification are subject to be changed without notice.
OFF-HOOK ON-HOOK
100K LINE
Ring HOOK-SW
SPEECH
NETWORK
A92 220K 3K3 1N4148
Tip VDD 0.001u 1815 HK 0.1u 4V7
1N4148
BRIDGE
XMUTE 1K5
RMUTE
2K2 47K A42 C945 50 47K 100K 0.1u
HDO HFO
0.1u 1N4148 SCAN SDO
1N4148 100K
LCD DRIVER
0.01u
VDD 1.2M 4K7
DRING
BRIDGE
APPLICATION CIRCUIT : CONTROL AND IPP DETECT
This specification are subject to be changed without notice.
27V LINE 1u PC817 VDD 16V 1N4148 22M VDD 1M
KEYBORAD AND HOLD
0.22u / 50V
EM91450DK
1N4148
VSS DRING COL3 COL2 COL1 KT / COL4 XMUTE XOUT SDO
OFF ON
RMUTE
DRING
BRIDGE
SW2: ON : Enable IPP detect OFF : Disable 3.58M BUZZER 0.1u 0.1u
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
ILLEGAL CONNECT EXTERNAL PHONE DETECT CIRCUIT
HDO ROW1 47K C945 C945 220K 0.1u 1u 22K 47K COL4 / KT
AUTOMATICALLY HOLD RELEASE CIRCUIT
COL4 COL3 COL2 COL1 ROW1 ROW2 ROW3 ROW4
APPLICATION CIRCUIT : KEY BOARD AND HOLD
This specification are subject to be changed without notice.
VDD LOCK NUMBER
R-option
FLASH TIME
Typical Resistor value are 560K For more detail please reference R-option section
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
LCD PANEL
SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 COM0 COM1 COM2 COM3
DIALER PART VDD VDD
1M C945
C945 EXTRA 1.5V BATTERY VDD CALENDAR
58 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 SEG26 SEG25 SEG24 SEG23 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10
RECOMMAND CRICUIT : C945
HKS VDD
56 55 SEG28 SEG29 SEG30 SEG31 COM0 COM1 COM2 COM3 ENCLND ENRTC SEG27 57
SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG0 FG SPARE2 SPARE1 TEST VSS MS2 MS1 HKS VDD VC2 VC1 SDI V3 V2 XOUT XIN
HK RTC
1N4148 VDD
EM32117
APPLICATION CIRCUIT : LCD DRIVER USE EM32117
VDD GF
This specification are subject to be changed without notice.
HOUR SDI
VDD HKS
0.1u 0.1u
NOTED :
MS1 , MS2 adjust Time
GF JUMP : General Flag icon for LOGO ON / OFF CALENDAR JUMP : CALENDAR ON / OFF
RTC HOUR
JUMP : Real Time Clock ON / OFF JUMP : 24 / 12 format select
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
APPLICATION CIRCUIT : LCD DRIVER USE EM32100
TEST AND F32H 37 38 39 40 41 42 43 44 45 46 47 48
TEST2
LCD PANEL
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
COM3 COM2 COM1 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24
TEST1
SEG6 SEG7 SEG8 SEG9 NC SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 VN NC VP
MS1 MS2 SDI HKS VDD XIN NC XOUT VSS 24 / 12 ENRTC NC
EM32100
20p 20p
JUMP : Real Time Clock ON / OFF RTC
EM32100 need HDO and HFO
MS1 , MS2 adjust Time SDO
EXTRA 1.5V BATTERY
1N4148
This specification are subject to be changed without notice.
NOTED :
JUMP : 24 / 12 format select
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
PACKAGE INFORMATION
Example : EM (1) 91450 P (2) (3) (1) ELAN MICRO. pefix (2) Type number (3) Package code: PPDIP KSkinny RSDIP 18 / 20 / 28 Lead Plastic Package
18 PDIP
DIM A A1 B B1 C D E E1 e eB L 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
20 PDIP
INCHES MILIMETERS INCHES MIN. MAX. DIM MIN. MAX. MIN. MAX. .210 A 5.334 .210 .015 A1 0.381 .015 .014 .022 B 0.356 0.558 .014 .022 .045 .070 B1 1.150 1.778 .045 .070 .008 .015 C 0.204 0.381 .008 .015 .880 .920 D 25.40 26.67 1.000 1.050 .300 .325 E 7.620 8.255 .300 .325 .240 .280 E1 6.096 7.112 .240 .280 .090 .110 e 2.286 2.794 .090 .110 .430 eB 10.92 .430 .115 .160 L 2.921 4.064 .115 .160 DIM A A1 B B1 C D E E1 e eB L 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
28 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 are subject to be changed without notice.
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
22 / 24 Lead Plastic Package-Skinny
22 PDIP (skinny)
DIM A A1 B B1 C D E E1 e eB L 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 DIM A A1 B B1 C D E E1 e eB L
24 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 are subject to be changed without notice.
EM91450 SERIES
TONE / PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
42 SDIP Package
42 SDIP
DIM A A1 A2 B B1 C D E1 e eB D1 L 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 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 0.005 0.115 0.135
This specification are subject to be changed without notice.