UNIVERSAL 15 MEMORY DIALER S5T5855A INTRODUCTION 22−DIP−400 The S5T5855A is 15 memory Tone/pulse switchable dialer with 32 digit redial memory. 16 digit indirect 10 memory and 16 digit direct 4 memory are possible. The Flash time is selectable on the keypad Also, Hands-Free and Hold functions are controlled on the keypad. The S5T5855A can fulfill all the standards of each country. FEATURES • Flash Time selectable on the keyboard (100, 303, 604 mS) • Hands-Free and Hold functions • Tone/Pulse switchable • 16 digit indirect (Two-touch) 10 memory (Pulse: 16 digit, Tone: 15 digit) • 16 digit direct (One-touch) 4 memory (Pulse: 16 digit, Tone: 15 digit) • Uses 3.579545MHz Color burst Crystal or ceramic resonator • Pulse rate selectable. (10 pps, 20 pps) • Make/Break ratio selectable (40: 60, 33 : 66) • Single tone enable for test • Tone (T/•) key function (Pulse → Tone) • Redial function (Pulse : 32 digit, Tone: 31 digit) • Pin compatible with S5T5820C, S5T0080A, and S5T5850 ORDERING INFORMATION Device S5T5855A01-D0B0 Function Package 22−DIP−400 HFD HOLD EM Flash Time M/B Ratio PPS O O O Selectable Selectable Selectable *HFD : Hands Free Dialing Function *HOLD : Hold for Melody *EM : Emergency Memory 1 S5T5855A UNIVERSAL 15 MEMORY DIALER BLOCK DIAGRAM VDD OSCI OSCO OSC M/B COUNTER DIVIDER PULSE COUNTER DP M/B SYSTEM CLOCK HS TIMING COUNTER DEBOUNCE CIRCUIT CONTROL CIRCUIT MDS/DRS X’ MUTE WRITE/READ ADDRESS COUNTER C1 C2 REDIAL RAM DATA LATCH 4 C3 C4 C5 R1 KEY INPUT INTERFACE CIRCUIT RECALL/LOCATION LATCH & ADDRESS COUNTER 14 MEMORY STORE RAM R2 R3 R4 HANDS FREE & HOLD CONTROL OUTPUT R5 HFO 2 VSS HDO 4 ROW, COLUMN SINEWAVE COUNTER & D/A CONVERTER TONE UNIVERSAL 15 MEMORY DIALER S5T5855A PIN CONFIGURATION R5 1 22 HFO R1 2 21 C4 R2 3 20 C3 R3 4 19 C2 R4 5 18 C1 HS 6 17 DP M/B 7 16 V+ MDS/DRS 8 15 X’ MUTE OSCI 9 14 VSS OSCO 10 13 VDD C5 11 12 HDO S5T5855A ARRANGEMENT OF KEY BOARD 1 2 3 ST EM1 4 5 6 R/L EM2 7 8 9 RD/P EM3 T/• 0 # F3 EM4 HFI HDI F1 F2 NU − RD/P − ST − R/L − F1 − F2 − F3 − HFI − HDI − T/• −# − EMI − Nu : Redial/Pause : Store : Recall/Location : Flash Time (100ms) : Flash Time (303ms) : Flash Time (604md) : Hands-Free Dialing Key Input : Hold Key Input : Pulse → Tone Mode : RD/P Function in Pulse Mode Data in Tone Mode : Direct Memory Location I = 1, 2, 3, 4. : Not Used Key SELECTION FUNCTION PIN MDS/DRS MAKE/BREAK CONNECTION FUNCTION VDD PULSE MODE/20 PPS OPEN PULSE MODE/10 PPS VSS TONE MODE VDD 1 : 2 (M : B) VSS 2 : 3 (M : B) 3 S5T5855A UNIVERSAL 15 MEMORY DIALER PIN DESCRIPTION Pin No Symbol 1 R5 2 R1 3 R2 4 R3 5 R4 6 I/O Description I Row key input HS I Hook switch 7 M/B I Make/Break select 8 MDS/DRS I Mode & dial pulse ratio select pin 9 OSCI I Oscillator input 10 OSCO O Oscillator output 11 C5 I Column 5 input 12 HDO O Hold function control output 13 VDD S (+) Power 14 VSS S (−) Power 15 TONE O Tone output 16 X’MUTE O X’MUTE Output (N-channel open drain) 17 DP O Dial pulse output (C-MOS inverter output) 18 C1 19 C2 I Column key input 20 C3 21 C4 22 HFO O Hands-free control output ABSOLUTE MAXIMUM RATINGS Characteristic Symbol Value Unit VDD − 0.3 to 7.0 V Input Voltage VI − 0.2 to VDD + 0.3 V Output Voltage VO − 0.3 to VDD + 0.3 V Power Dissipation PD 500 mW Operating Temperature TOPR − 20 to + 70 °C Storage Temperature TSTG − 55 to + 150 °C Supply Voltage 4 UNIVERSAL 15 MEMORY DIALER S5T5855A ELECTRICAL CHARACTERISTICS (VDD = 3.5V, VSS = 0V, Ta = 25°C , fosc = 3.579545MHz) Characteristic Symbol Test conditions Min. Typ. Max. Operating Voltage VDD − 2.0 − 6.0 Memory Retention Voltage VMR − 1.0 − − Memory Retention Current IMR HS = VDD = 1.0V − 0.05 0.1 Pulse Mode − 0.1 0.3 Tone Mode − 0.4 0.7 HS = VSS − 10 50 µA Operating Current IDD(PULSE) IDD(TONE) Standby Current All output unload ISB Unit V uA mA Output Sink Current IO(SINK)1 VOL = 0.4V 1.7 5.0 − mA (DP, X’MUTE) IO(SINK)2 VOL = 0.4V, VDD = 2.5V 0.5 1.5 − mA IOH VOH = 0.3V 1.8 5.2 − mA IOL VOL = 0.4V 1.7 5.1 − mA VIH R1 to R5, M/B, HS 0.8VDD − VDD V VIL C1 to C5, MDS/RDS, HS VSS − 0.2VDD V II1 R1 to R5, VIN = VSS − − 50 µA II2 R1 to R5, VIN = VSS VDD = 2.5V − − 30 µA Tone Mode 1 2 3 dB VOH(TONE) RL = 5.0Kohm −18 − −16 VOL(TONE) VDD = 2.5V, RL = 5.0Kohm −18 − −16 Output Current Input Voltage Input Current Column to Row Tone Ratio Row Tone Output dBcr dBV THD − − 1 4 % Valid Key Entry Time tKD − − 33.3 − mS Pause Time tPA P Key Depress − 3.6 − Sec Tone Distortion Pulse Interdigit tPIDP1 MDS/DRS = VDD (20 PPS) − 600 − Pause Time tPIDP2 MDS/DRS = OPEN(10 PPS) − 800 − Tone interdigit pause time tTIDP MDS/DRS = VSS − 103.5 − tTD − − 101 − tPTPA − − 3.6 − M/B = VDD MDS/DRS = OPEN (10 PPS) M/B = V SS − 33.5/67.0 − − 40.2/60.3 − M/B = VDD − 16.7/33.5 − M/B = VSS − 20.1/30.2 − Tone Duration Pulse to tone auto pause time Make/Break Time tM/B MDS/DRS = VDD (20 PPS) mS mS 5 S5T5855A Characteristic Pre-digit Pause Time UNIVERSAL 15 MEMORY DIALER Symbol tPTPA Test conditions Min. Typ. Max. MDS/DRS = VDD, M/B = VDD − 17 − MDS/DRS = OPEN, M/B = VDD − 37 − MDS/DRS = VDD, M/B = VSS − 20 − MDS/DRS = OPEN, M/B = VSS − 30 − − 3.0 − F1 Key Depress − 100 − F2 Key Depress − 303 − F3 Key Depress − 604 − − Pulse to X’MUTE overlap time tPMO Flash Time tFL Unit mS mS mS APPLICATION INFORMATION KEY DESCRIPTION • 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 These are Tone/Pulse dialing signal keys in normal mode. • T/∗ Pulse Mode : Pulse to Tone Switching Key Tone Mode : Data Key • # Pulse Mode : No Operation Tone Mode : Data key • EM1, EM2, EM3, EM4 DIRECT REPERTORY DIALING KEY. The cascade 32 digit dialing is available and the exceed 32 digit dialing accepted one by one after all 32 digits is dialed out. In store mode, pressing EM1 to EM4 key will cause the 16 digits of buffer memory storing to corresponding repertory memory. • RD/P KEY If press this key first after off- hook, it will operate as a redial key, otherwise it will operate as a pause key. • ST : Store This key will accept as store key if press it first key after off or on - hook. The store mode will be released by pressing this key again or hooking once. • R/L This key will be allowed recall or location selection in indirect memory operation 6 UNIVERSAL 15 MEMORY DIALER • S5T5855A F : Flash (i = 1, 2,3) If the Flash key pressed, DP and X’MUTE will be forced to low during the t FL (Flash Time) F1 100mS F2 303mS F3 604mS Flach time selectable on the keyboard • HFI Hands-Free dialing input. Hands-Free dialing output controlled by the keyboard (HFl) • HDI Hold function input. Hold function controlled by the keyboard (HDl). The output will control the melody enable. KEYBOARD AND SWITCHE OPERATION • SYMBOL DEFINITION DP = PULSE DATA: 0,1,2,3,4,5,6,7,8,9,F, PAUSE Dt = TONE DATA: 0,1,2,3,4,5,6,7,8,9, *,#,F, PAUSE EM1 ~ EM4 = DIRECT MEMORY REC = RECALL LOC = LOCATION ZiZiZi = Conversation Mode OFF= OFF−HOOK ON = ON-HOOK = INPUT LEVEL LOW TO HIGH = INPUT LEVEL HIGH TO LOW • OPERATION MANUAL − NORMAL DIALING IN PULSE MODE OFF: Dp,−, D p, : ZiZiZi: ON − NORMAL DIALING IN TONE MODE OFF: Dt,−, Dt, : ZiZiZi : ON − NORMAL DIALING FROM PULSE TO TONE VIA T/* KEY OFF: Dp,−, D p, T/*, Dt, : ZiZiZi : ON − NORMAL DIALING FROM PULSE TO TONE VIA MDS/DRS SWITCH OFF: Dp,−, D p, MDS/DRS, , Dt , ----,Dt : ZiZiZi : ON − REDIAL OFF: RD/P : ZiZiZi : ON NOTES : 1.All the key input will be ignored during the redial. 2.if the dialing digits exceed 32 digits, the redialing operation will be inhibited) 3.Cascade dialing (normal dialing after redialing) will be accepted. 7 S5T5855A UNIVERSAL 15 MEMORY DIALER − REPERTORY DIALING FOR CASCADED MEMORY OFF:EMI (i =1,2,3,4) : ZiZiZi : ON: DIRECT OFF: REC, LOCx (x=1,2,-, 0): ZiZiZi : ON : INDIRECT − REPERTORY DIALING FOR CASCADED MEMORY The cascade 32 digit dialing is available and exceed 32 digit dialing accepted one by one after all 32 digits are dialed out. NORMAL DIALING AFTER REPERTORY DIALING OFF: EMI (i = 1,2,3,4) or REC, LOCx (x = 1,2,−, 0), Dg,−, Dg, : ZiZiZi : ON − STORE ON/OFF, ST, Dg,-, Dg EMI OR LOCx Store mode will be released by pressing store key again or hooking once. − STORE ON/OFF, ST, Dg,-, Dg, EMI OR LOCx Store mode will be released by pressing store key again or hooking once. − CHANGING STORE DATA VIA F KEY ON/OFF, ST, D1 ,D2,D3,F,D4,D5,D6, -, Dn, EMI or LOCx In above dialing sequence, the storing data are D4,D5,D6,Dn. − HANDS FREE DIALING ON : HFI, D1, D2,−, Dn, : OFF : ZiZiZi : ON ON : HFI, D1, D2,−, Dn, HFI,RD − HOLD FUNCTION This pin controls the melody output enable and disable. (Refer to state diagram of hands-free dialing & hold function) TRUTH TABLE OF HANDS-FREE INPUT & HOLD FUNCTION NO 1 2 3 4 5 6 7 8 9 10 11 12 13 CURRENT STATE HOOK STATE HFO HDO ON/OFF HOOK ON HOOK OFF HOOK ON HOOK OFF HOOK OFF HOOK OFF HOOK ON HOOK ON HOOK ON HOOK OFF HOOK OFF HOOK ON/OFF HOOK L H H X X L H L H H X X X L L L X H L L X L H L H H *Comment : X : Don’t Care P : Previous State 8 INPUT HFI KEY IN HFI KEY IN HFI KEY IN OFF HOOK ON HOOK ON HOOK ON HOOK HDI KEY IN HDI KEY IN HDI KEY IN HDI KEY IN HDI KEY IN HDI KEY IN NEXT STATE HFO HDO H L L L P L H L H H P P P L L L L P L L P H L H L H DIALING YES NO YES YES MELODY NO YES NO MELODY YES MELODY YES MELODY ON ON ON ON UNIVERSAL 15 MEMORY DIALER S5T5855A TIMING DIAGRAM PULSE MODE HS KEY INPUT 1 2 F RD tM tB DP tPMO tPDPA X’ MUTE tPMO tFL tPIDP TONE MODE HS KEY INPUT 1 P 3 RD tPA X’ MUTE TONE tPA tTD 9 S5T5855A UNIVERSAL 15 MEMORY DIALER PULSE TO TONE DIALING HS KEY INPUT 1 2 3 4 MDS/DRS DP tPTPA X’ MUTE 3 TONE HANDS-FREE DIALING & HOLD FUNCTION HS X’ MUTE HDI KEY INPUT HDO KEY INPUT 1 DP HDI KEY INPUT HDO 10 2 5 1 4 C2 10µF RING TIP 7 6 5 Q3 C1009Y C4 104 Q2 C945 R5 1M OCO OCI MODE MB 104 C2 3 4 R9 22K HR HDI F1 F2 F3 EM4 7 8 9 RD/P EM3 2 T/' 0 # 1 2 3 ST EM1 4 5 6 R/L EM2 S5T5855A R10 100K 12 13 14 15 16 17 18 19 20 21 C5 22 470µ 1 PIEZO HOLDO VDD GND TONE MUTE DP C1 C2 C3 C4 HFO S5T5855A 11 KIT 10 9 8 7 HS R4 R3 R2 R1 R5 Z-1 RING GND SWP OFC SW3 SW2 6 5 4 3 R4 300K 1 2 Z-2 7V D1 SW1 <H/S> 150K TIP RC AVA OUT S1T2418G01 8 R8 6.8K R6 470K R3 470K C1 1µF-250V BRIDGE-D A1156 2M R2 R1 R14 20K R16 47K R12 470K R11 47K Q5 C945 C7 123 7 6 Out S1T8602B Mute GND 5 D5 C10 22µ R23 15 R21 150 R20 6.2K 2 R34 51K C11331 3 4 INT1 INT2 OUT VCC 1 C21 4.7µ IC5 8 R19 8.2K D2 3 2 1 R15 5.1K C6 104 D4 D3 MEMORY KS531A Q4 C945 R13 120K R18 100K R17 330 1.5-T1 3H CO CI VL C18 1000µ 100K GND VR MUTE MFI R33 100K 8 7 6 5 4 BIAS 3 2 1 R22 43 C8 104 R25 5.1K TOF MIC+ MIC CC RXI RFO RXO VCC R26 10K R24 9 10 11 12 14 13 15 16 620 R36 330 C19 22µ SW4 R39 20K C15 330 C16 104 R41 560 MIC R40 1K R37 C14 3.3K 0.33µ R35 33K C17 1µ R38 390K C33 103 C22 22µ C9 220µ VR 100K R42 3K R20 104 UNIVERSAL 15 MEMORY DIALER S5T5855A APPLICATION CIRCUIT 11 S5T5855A UNIVERSAL 15 MEMORY DIALER NOTES 12