13-FLASH MEMORY TON/PULSE DIALER WITH HANDFREE, LOCK HOLD FUNCTIONS
|
|
|
Top Searches for this datasheet
Preliminary W91F820N SERIES
13-FLASH MEMORY TON/PULSE DIALER WITH HANDFREE, LOCK HOLD FUNCTIONS
W91F820N series tone/pulse switchable telephone dialers with 13-flash memory, keytone, hold, lock, handfree dialing control features. These chips fabricated using Winbond's highperformance CMOS technology thus offer good performance low-voltage, low-power operations.
FEATURES
Tone/pulse switchable dialer digits redial save memory Three digits one-touch direct repertory flash memory digits one-touch direct two-touch indirect repertory flash memory read-write times: Pulse-to-tone (*/T) keypad long distance call operation Chain dialing Uses keyboard Easy operation with redial, flash, pause, keypads Pause, (pulse-to-tone) stored digit memory Dialing rate:10 mask option Minimum tone output duration: Minimum intertone pause: Pause time: sec. Flash break time selectable keypad; pause time Make/break ratio (2:3 1:2) selectable MODE Mute speech network mute will accepted except "HOLD" when Hold mode tone output valid keypad entry recognition On-chip power-on reset Uses 3.579545 crystal ceramic resonator 20-pin mil, 22-pin dual-in-line plastic package different dialers W91F820N series shown following table: TYPE W91F820N W91F820AN W91F820LN W91F820ALN W91F822N W91F822AN PULSE (PPS) LOCK TONE HANDFREE DIALING PACKAGE (PINS)
Publication Release Date: January 1999 Revision
Preliminary W91F820N SERIES
CONFIGURATIONS
MUTE MUTE N.C. MODE DTMF MUTE MUTE
N.C. MODE DTMF
W91F820N/822N
W91F820AN/822AN
LOCK MUTE MUTE N.C. MODE DTMF LOCK MUTE MUTE
N.C. MODE DTMF
W91F820LN
W91F820ALN
Preliminary W91F820N SERIES
DESCRIPTION
SYMBOL 20-PIN Column1-4 Inputs 17-20 22-PIN 19-22 FUNCTION keyboard input compatible with standard keyboard, inexpensive single contact (Form keyboard, electronic input. normal operation, single button pushed produce dual tone, pulses, functions. Activation more buttons will result response except single tone. built-in inverter together with inexpensive 3.579545 crystal supplies oscillator. oscillator stops when there keypad input. crystal frequency deviation 0.02%. Crystal oscillator output pin. MUTE conventional CMOS N-channel open drain output. output transistor turns with level during dialing sequence (both pulse tone mode). Otherwise, off. connect Connecting mode places dialer tone mode. Connecting mode places dialer pulse mode with ratio 40:60. Leaving mode floating places dialer pulse mode with ratio 33.3:66.7. (hook switch) input used sense whether handset on-hook off-hook. on-hook state, chip sleeping mode, operation. off-hook state, chip enabled normal operation.
(W91F820N/ F820AN/ F822N)
MUTE
N.C. MODE
LOCK
(W91F820LN/ 820ALN only)
pulled internal resistor. tone output conventional CMOS inverter. tone generated when valid pressed; generates square wave When pressed, remains state. function this terminal prevent dialing dialing under PABX system long distance call control. When first input after reset inputs, including key, become invalid chip generates output. telephone reinitialized reset. function LOCK shown below:
LOCK Floating FUNCTION "0", dialing inhibited Normal dialing Mode dialing inhibited
Publication Release Date: January 1999 Revision
Preliminary W91F820N SERIES
Description, continued
SYM. MUTE
20-PIN 22-PIN
FUNCTION MUTE conventional inverter output. During pulse dialing, flash break hold period, this output active high; otherwise, remains state. N-channel open drain dialing pulse output. Flash will cause active either tone mode pulse mode. timing diagram pulse mode shown Figure 1(a, During pulse dialing, this remains state regardless keypad input. tone mode, will output dual single tone. detailed timing diagram tone mode shown Figure 2(a,
OUTPUT FREQUENCY Specified 1209 1336 1477 Actual 1216 1332 1472 Error +0.28 -0.52 -0.47 +0.74 +0.57 -0.30 -0.34
DTMF
VDD, HFI,
Power input pins dialer chip. power ground. Handfree control pins. pulse input toggles handfree control state. status handfree control state listed following table:
CURRENT STATE
HOOK INPUT
NEXT STATE
DIALING
Hook Hook Hook Hook Hook
High High High
Hook Hook Hook
High High
pulled internal resistor. detailed timing diagram shown Figure
Preliminary W91F820N SERIES
BLOCK DIAGRAM
SYSTEM CLOCK GENERATOR
LOCK R4,Vx/R5) KEYBOARD INTERFACE COLUMN C4,Vss) LOCATION LATCH MUTE MUTE READ/WRITE COUNTER CONTROL LOGIC MODE
PULSE CONTROL LOGIC
DTMF
CONVERTER
COLUMN PROGRAMMABLE COUNTER
DATA LATCH DECODER
FUNCTIONAL DESCRIPTION
Keyboard Operation
SAVE Vx/R5
Store function Indirect repertory memory dialing function Hold function R/P: Redial pause function */T: tone mode pulse mode SAVE: Save function one-touch 32-digit memory M0-M9: touch memory. dialing number stored M0-M9 locations key.
Note that touch memory 0-A+9) share same memory buffer with M0-M9, respectively Publication Release Date: January 1999 Revision
Preliminary W91F820N SERIES
EM1, EM3: Emergency one-touch memory Flash function keys: flash
pause time
Note: D1`, Dn`, */T, EM1, EM3,
Normal Dialing
HOOK HOOK will dialed out. Dialing length unlimited, redial inhibited length oversteps digits normal dialing.
Redialing Dialing
HOOK Come HOOK BUSY
HOOK
HOOK
HOOK
execute redial function only first key-in after off-hook. Otherwise, will invoke
pause function.
Number Store
HOOK HOOK SAVE pressed.
dialing
must first finished before
will stored memory location saved then dialed out. HOOK HOOK
SAVE
will stored memory location, saved), will dialed out. keys stored digit memory, pause function key. cannot
first digit. store mode,
store mode released after store function executed when state hook switch changes flash function executed.
Save
HOOK HOOK Save
will dialed out. dialing save memory. -6D1 finished, pressing SAVE will duplicate
Preliminary W91F820N SERIES
HOOK come HOOK SAVE
HOOK
HOOK
will dialed after
SAVE pressed.
Repertory Dialing Procedure
One-touch direct repertory dialing: HOOK HOOK SAVE
Two-touch direct repertory dialing: HOOK HOOK
Access Pause
HOOK HOOK
pause function stored memory. pause function executed with normal dialing, redialing memory dialing. pause function timing diagram shown Figure
Pulse Tone (*/T)
HOOK HOOK
mode switch pulse mode, then will perform Pause (3.6 sec), D1', D2', (Pulse) (Tone)
mode switch tone mode, then output signal will D1', D2', (Tone) reset pulse mode only HOOK active. This because remains tone mode when digits have been dialed out. function timing diagram shown Figure
Flash
HOOK HOOK
F1-F4.
pressed, dialer will execute flash break time (F1),
Publication Release Date: January 1999 Revision
Preliminary W91F820N SERIES
(F2), (F3) (F4) pause time second, after which next digit dialed out. flash first priority keyboard function only flash will released user. When flash system will return initial state after flash pause time finished. flash function timing diagram shown Figure
Cascaded Dialing
HOOK HOOK Normal Dialing
Normal Dialing (1st sequence)
Repertory Dialing (2nd sequence) Normal Dialing (2nd sequence)
Repertory Dialing (1st sequence)
Repertory Dialing
Redialing
Normal Dialing
Repertory Dialing
(1st sequence)
(2nd sequence)
Redialing valid only first key-in. second sequence should operated until first sequence dialed completely.
Mute
HOOK MUTE
MUTE on/off toggle function. functional timing diagram shown Figure
ABSOLUTE MAXIMUM RATING
PARAMETER Supply Voltage Input/Output Voltage SYMBOL VDD-VSS Power Dissipation Operation Temperature Storage Temperature TOPR TSTG RATING -0.3 +7.0 -0.3 +0.3 -0.3 +0.3 +150 UNIT
Note: Exposure conditions beyond those listed under Absolute Maximum Ratings adversely affect life reliability device.
Preliminary W91F820N SERIES
CHARACTERISTICS
(VDD-VSS 2.5V, Fosc. 3.58 MHz, outputs unloaded)
PARAMETER Operating Voltage Operating Current Standby Current Memory Retention Current Tone Output Voltage Pre-emphasis DTMF Distortion DTMF Output Level DTMF Output Sink Current
Output Sink Current
SYM. Tone Pulse
CONDITIONS
MIN.
TYP.
MAX.
UNIT mVrms
load entry 1.0V group, Col/Row, 2.0-5.5V
VTDC IKTH IKTL IHFH IHFL IHPH IHPL RHKS
2.0- 5.5V 2.0- 5.5V 0.5V 0.5V 0.5V VKTH 2.0V VKTL 0.5V VHFH 2.0V VHFL 0.5V VHPH 2.0V VHPL 0.5V
MUTE Output Sink Current Drive/Sink Current Drive/Sink Current MUTE Drive/Sink Current Keypad Input Drive Current Pull High Resister Keypad Input Sink Current Keypad Resistance
2.5V
Publication Release Date: January 1999 Revision
Preliminary W91F820N SERIES
CHARACTERISTICS
PARAMETER Key-in Debounce Release Debounce On-hook Debounce Pre-digit Pre-digit Pause1 Pause2 SYM. TKID TKRD TOHD TPDP1 TPDP2 Inter Digit Pause (Auto Dialing) TIDP Lock Mode Unlock Mode Mode Mode Floating Mode Mode Floating
(W91F820N/W91F820AN/ F820LN/F820ALN
CONDITIONS
MIN.
TYP. 33.3 16.7
MAX.
UNIT
(W91F822N/F822AN only)
40:60 33.3:66.7
Interdigit Pause (Auto dialing) Make/Break Ratio Tone Output Duration Intertone Pause Flash Break Time
TIDP TITP
Mode Mode Floating
Flash Pause Time Pause Time Tone Frequency Tone Duration One-key Redialing Pause Time One-key Redialing Break Time First Key-in Delay
TKTD TFKD
Lock only
Notes: Crystal parameters suggested proper operation 0.02 Fosc. 3.579545 ±0.02%. Crystal oscillator accuracy directly affects these times.
Preliminary W91F820N SERIES
TIMING WAVEFORMS
TKID
TKID
TIDP
TIDP TPDP
TIDP
MUTE MUTE DTMF
OSC.
OSC.
OSC.
Figure 1(a) Pulse Mode Tming Diagram (Normal dialing without lock function)
<300
TIDP
MUTE
(long mute)
TFKD
MUTE
DTMF
OSC.
OSC.
OSC.
Figure 1(b) Pulse Mode Timing Diagram (Normal dialing with lock function)
Publication Release Date: January 1999 Revision
Preliminary W91F820N SERIES
Timing Waveforms, continued
TIDP TPDP
TIDP
MUTE
(long mute)
MUTE
DTMF OSC.
HOOK
OSC.
Figure 1(c) Pulse Mode Timing Diagram (Auto dialing without lock)
<300
TIDP TPDP
TIDP
MUTE
(long mute)
TFKD
MUTE
DTMF OSC.
OSC.
Figure 1(d) Pulse Mode Timing Diagram (Auto dialing with lock function)
Preliminary W91F820N SERIES
Timing Waveforms, continued
TKID DTMF MUTE TKRD TKRD TKRD
TKID
TITP
TITP
TITP
MUTE DTMF
HIGH OSC. OSC.
OSC.
Figure 2(a) Tone Mode Timing Diagram (Normal dialing without lock)
TKRD
TKRD
TKID
TKRD
DTMF MUTE TFKD MUTE
TITP
TITP
TITP
HIGH OSC. OSC.
OSC.
Figure 2(b) Tone Mode Timing Diagram (Normal dialing with lock function)
Publication Release Date: January 1999 Revision
Preliminary W91F820N SERIES
Timing Waveforms, continued
TKID DTMF MUTE
TITP
MUTE
HIGH OSC.
HOOK
OSC.
Figure 2(c) Tone Mode Timing Diagram (Auto dialing without lock)
DTMF MUTE TFKD
TITP
TITP
MUTE
HIGH OSC.
OSC.
Figure 2(d) Tone Mode Timing Diagram (Auto dialing with lock function)
Preliminary W91F820N SERIES
Timing Waveforms, continued
TKID DTMF MUTE (return initial state) MUTE HIGH OSC.
HOOK
TITP
OSC.
Figure 2(e) Tone Mode Timing Diagram with On-hook Debounce (Auto dialing without lock)
HOOK
HOOK
MUTE HIGH
MUTE
CHIP ENABLE
Note: enabled during chip dissable.
Figure 3(a)
Publication Release Date: January 1999 Revision
Preliminary W91F820N SERIES
Timing Waveforms, continued
HOOK
MUTE HIGH
MUTE
CHIP ENABLE
Figure 3(b) Note: inputs will toggle signal. first time activated, signal will high previous active input will neglected.
HOOK
MUTE HIGH
MUTE CHIP ENABLE
Figure 3(c) Note: signal change state from high will initialize both MUTE signals.
Preliminary W91F820N SERIES
Timing Waveforms, continued
TKID
MUTE
<300
TOFD
MUTE
DTMF OSC. CHIP ENABLE
HOOK
OSC. OSC.
Figure Lock Function Timing Diagram
TKID MUTE
TIDP TPDP TPDP
TIDP
MUTE
DTMF
OSC.
OSC.
Figure Pulse Mode One-key Dedialing Timing Diagram (without lock)
Publication Release Date: January 1999 Revision
Preliminary W91F820N SERIES
Timing Waveforms, continued
TKID
MUTE
TIDP TPDP
TIDP
TIDP
MUTE DTMF OSC.
OSC.
Figure Pause Function Timing Diagram (without lock)
TKID
TPDP MUTE
TIDP
TIDP
DTMF TITP MUTE
OSC.
OSC.
Figure Pulse Tone Function Timing Diagram (without lock)
Preliminary W91F820N SERIES
Timing Waveforms, continued
TKID
MUTE
MUTE
DTMF OSC. OSC.
Figure Flash Operation Timing Diagram
Publication Release Date: January 1999 Revision
Preliminary W91F820N SERIES
Headquarters
Creation III, Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5770066 FAX: 886-3-5792697 http://www.winbond.com.tw/ Voice Fax-on-demand: 886-2-7197006
Winbond Electronics (H.K.) Ltd.
803, World Trade Square, Tower Rd., Kwun Tong, Kowloon, Hong Kong TEL: 852-27513100 FAX: 852-27552064
Winbond Electronics North America Corp. Winbond Memory Lab. Winbond Microelectronics Corp. Winbond Systems Lab.
2730 Orchard Parkway, Jose, 95134, U.S.A. TEL: 1-408-9436666 FAX: 1-408-9436668
Taipei Office
11F, 115, Sec. Min-Sheng East Rd., Taipei, Taiwan TEL: 886-2-7190505 FAX: 886-2-7197502
Note: data specifications subject change without notice.
Other recent searches
SMCJ200C - SMCJ200C SMCJ200C Datasheet
PN200 - PN200 PN200 Datasheet
PN200A - PN200A PN200A Datasheet
NII52008-7 - NII52008-7 NII52008-7 Datasheet
HUF75321P3 - HUF75321P3 HUF75321P3 Datasheet
HUF75321S3S - HUF75321S3S HUF75321S3S Datasheet
FSA4159 - FSA4159 FSA4159 Datasheet
CM12864-2 - CM12864-2 CM12864-2 Datasheet
BTS6510 - BTS6510 BTS6510 Datasheet
Privacy Policy | Disclaimer
© 2012 Datasheet Archive
