S5T5855A S5T5855A memory Tone/pulse switchable dialer with digit

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S5T5855A S5T5855A memory Tone/pulse switchable dialer with digit

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UNIVERSAL MEMORY DIALER
S5T5855A
S5T5855A memory Tone/pulse switchable dialer with digit redial memory. store phone numbers 16-digit indirect memory phone numbers 16-ditis direct memory. Flash time selectable keypad. Hands-Free Hold functions controlled keypad well. S5T5855A fulfill standards each country.
22-DIP-400
FEATURES
Flash Time selectable keyboard (100, 303, Hands-Free Hold functions Tone/Pulse switchable digit indirect (Two-touch) memory (Pulse: digit, Tone: digit) digit direct (One-touch) memory (Pulse: digit, Tone: digit) Uses 3.579545MHz Color burst Crystal ceramic resonator Pulse rate selectable. pps, pps) Make/Break ratio selectable (40: Single tone enable test Tone (T/) function (Pulse Tone) Redial function (Pulse digit, Tone: digit) compatible with S5T5820C, S5T0080A, S5T5850
ORDERING INFORMATION
Device S5T5855A01-D0B0 Package 22-DIP-400 Function HOLD Flash Time Selectable Ratio Selectable Selectable
*HFD Hands Free Dialing Function *HOLD Hold Melody Emergency Memory
S5T5855A
UNIVERSAL MEMORY DIALER
BLOCK DIAGRAM
OSCI OSCO DIVIDER
COUNTER
PULSE COUNTER
CONTROL CIRCUIT MDS/DRS
SYSTEM CLOCK
TIMING COUNTER
DEBOUNCE CIRCUIT
MUTE WRITE/READ ADDRESS COUNTER REDIAL DATA LATCH
INPUT INTERFACE CIRCUIT
RECALL/LOCATION LATCH ADDRESS COUNTER
MEMORY STORE
ROW, COLUMN SINEWAVE COUNTER CONVERTER
TONE
HANDS FREE HOLD CONTROL OUTPUT
UNIVERSAL MEMORY DIALER
S5T5855A
CONFIGURATION
MDS/DRS OSCI OSCO
S5T5855A
MUTE
ARRANGEMENT BOARD RD/P
RD/P
Redial/Pause Store Recall/Location Flash Time (100ms) Flash Time (303ms) Flash Time (604md) Hands-Free Dialing Input Hold Input Pulse Tone Mode RD/P Function Pulse Mode Data Tone Mode Direct Memory Location Used
SELECTION FUNCTION MDS/DRS MAKE/BREAK CONNECTION OPEN FUNCTION PULSE MODE/20 PULSE MODE/10 TONE MODE
S5T5855A
UNIVERSAL MEMORY DIALER
DESCRIPTION
Symbol MDS/DRS OSCI OSCO TONE X'MUTE Hands-free control output Column input Hook switch Make/Break select Mode dial pulse ratio select Oscillator input Oscillator output Column input Hold function control output Power Power Tone output X'MUTE Output (N-channel open drain) Dial pulse output (C-MOS inverter output) input Description
ABSOLUTE MAXIMUM RATINGS
Characteristic Supply Voltage Input Voltage Output Voltage Power Dissipation Operating Temperature Storage Temperature Symbol TOPR TSTG Value Unit
UNIVERSAL MEMORY DIALER
S5T5855A
ELECTRICAL CHARACTERISTICS
(VDD 3.5V, 25°C fosc 3.579545MHz) Characteristic Operating Voltage Memory Retention Voltage Memory Retention Current Operating Current Standby Current Output Sink Current (DP, X'MUTE) Output Current Symbol IDD(PULSE) IDD(TONE) IO(SINK)1 IO(SINK)2 dBcr 0.4V 0.4V, 2.5V 0.3V 0.4V M/B, MDS/RDS, 2.5V Tone Mode output unload Test conditions 1.0V Pulse Mode Tone Mode Min. 0.8VDD Typ. 0.05 33.3 103.5 33.5/67.0 40.2/60.3 16.7/33.5 20.1/30.2 Max. 0.2VDD Unit
Input Voltage
Input Current Column Tone Ratio Tone Output Tone Distortion Valid Entry Time Pause Time Pulse Interdigit Pause Time Tone interdigit pause time Tone Duration Pulse tone auto pause time
VOH(TONE) 5.0Kohm VOL(TONE) 2.5V, 5.0Kohm tPIDP1 tPIDP2 tTIDP tPTPA Depress MDS/DRS PPS) MDS/DRS OPEN(10 PPS) MDS/DRS MDS/DRS OPEN PPS) MDS/DRS PPS)
Make/Break Time
tM/B
S5T5855A
UNIVERSAL MEMORY DIALER
Characteristic
Symbol
Test conditions MDS/DRS VDD,
Min.
Typ.
Max.
Unit
Pre-digit Pause Time
tPTPA
MDS/DRS OPEN, MDS/DRS VDD, MDS/DRS OPEN,
Pulse X'MUTE overlap time tPMO
Depress
Flash Time
Depress Depress
APPLICATION INFORMATION DESCRIPTION These Tone/Pulse dialing signal keys normal mode. Pulse Mode Pulse Tone Switching Tone Mode Data Pulse Mode Operation Tone Mode Data EM1, EM2, EM3, DIRECT REPERTORY DIALING KEY. cascade digit dialing available exceed digit dialing accepted after digits dialed out. store mode, pressing will cause digits buffer memory storing corresponding repertory memory. RD/P press this first after off- hook, will operate redial key, otherwise will operate pause key. Store This will accept store press first after hook. store mode will released pressing this again hooking once. This will allowed recall location selection indirect memory operation
UNIVERSAL MEMORY DIALER
S5T5855A
Flash 2,3) Flash pressed, X'MUTE will forced during (Flash Time) 100mS 303mS 604mS Flach time selectable keyboard
Hands-Free dialing input. Hands-Free dialing output controlled keyboard (HFl) Hold function input. Hold function controlled keyboard (HDl). output will control melody enable.
KEYBOARD SWITCHE OPERATION SYMBOL DEFINITION PULSE DATA: 0,1,2,3,4,5,6,7,8,9,F, PAUSE TONE DATA: 0,1,2,3,4,5,6,7,8,9, *,#,F, PAUSE DIRECT MEMORY RECALL LOCATION ZiZiZi Conversation Mode OFF= OFF-HOOK ON-HOOK INPUT LEVEL HIGH INPUT LEVEL HIGH OPERATION MANUAL NORMAL DIALING PULSE MODE OFF: Dp,-, ZiZiZi: NORMAL DIALING TONE MODE OFF: Dt,-, ZiZiZi NORMAL DIALING FROM PULSE TONE OFF: Dp,-, T/*, ZiZiZi NORMAL DIALING FROM PULSE TONE MDS/DRS SWITCH OFF: Dp,-, MDS/DRS, -,Dt ZiZiZi REDIAL OFF: RD/P ZiZiZi
NOTES input will ignored during redial. dialing digits exceed digits, redialing operation will inhibited) Cascade dialing (normal dialing after redialing) will accepted.
S5T5855A
UNIVERSAL MEMORY DIALER
REPERTORY DIALING CASCADED MEMORY OFF:EMI =1,2,3,4) ZiZiZi DIRECT OFF: REC, LOCx (x=1,2,-, ZiZiZi INDIRECT REPERTORY DIALING CASCADED MEMORY Cascade digit dialing available digits exceeding digit dialing limit accepted after digits dialed out. NORMAL DIALING AFTER REPERTORY DIALING OFF: 1,2,3,4) REC, LOCx 1,2,-, Dg,-, ZiZiZi STORE ON/OFF, Dg,-, LOCx Store mode will released pressing store again hooking once. STORE ON/OFF, Dg,-, LOCx Store mode will released pressing store again hooking once. CHANGING STORE DATA ON/OFF, ,D2,D3,F,D4,D5,D6, LOCx above dialing sequence, storing data D4,D5,D6,Dn. HANDS FREE DIALING HFI, D2,-, ZiZiZi HFI, D2,-, HFI,RD HOLD FUNCTION This controls melody output enable disable. (Refer state diagram hands-free dialing hold function) TRUTH TABLE HANDS-FREE INPUT HOLD FUNCTION
CURRENT STATE HOOK STATE
ON/OFF HOOK HOOK HOOK HOOK HOOK HOOK HOOK HOOK HOOK HOOK HOOK HOOK ON/OFF HOOK
INPUT
HOOK HOOK HOOK HOOK
NEXT STATE
DIALING
MELODY MELODY MELODY MELODY
*Comment Don't Care Previous State
UNIVERSAL MEMORY DIALER
S5T5855A
TIMING DIAGRAM
PULSE MODE
INPUT
tPDPA tPMO tPMO tPIDP
MUTE
Figure TONE MODE
INPUT
MUTE
TONE
Figure
S5T5855A
UNIVERSAL MEMORY DIALER
PULSE TONE DIALING
INPUT
MDS/DRS
tPTPA
MUTE
TONE
Figure HANDS-FREE DIALING HOLD FUNCTION
MUTE
INPUT
INPUT
INPUT
Figure
UNIVERSAL MEMORY DIALER
S5T5855A
APPLICATION CIRCUIT
RING BRIDGE-D
1mF250V
A1156
150K <H/S> 300K 470K C945 470K
470K 100K 120K C945 6.2K
5.1K
MODE
MUTE TONE HOLDO
S1T8504
3.3K 0.33
BIAS
5.1K 8.2K C945 MEMORY KS531A
MIC+
MUTE
100K
100K
390K
6.8K C1009Y
S5T5855A
100K
10mF
PIEZO
S5T5855A
RD/P
Mute
100K
S1T2418G01 RING
S1T8602B INT1 INT2
C11331
1000
S5T5855A
UNIVERSAL MEMORY DIALER
NOTES

S5T5855A S5T5855A memory Tone/pulse switchable dialer with digit

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