W91360AN

W91360N SERIES 3-MEMORY TONE/PULSE DIALER WITH HANDFREE AND HOLD FUNCTIONS GENERAL DESCRIPTION The W91360N series are tone/pluse switchable telephone dialers with three memories, hold function, and a handfree dialing control circuit. Fabricated using CMOS technology, the W91360N series offer good performance in low-voltage and low-power applications. FEATURES • • • • • • • • • • • • • • • • DTMF/pulse switchable dialer Two by 32-digit redial and save memory Three by 16-digit one-touch direct repertory memory Cascaded dialing allowed, with unlimited dialing length Pulse-to-tone (*/T) keypad for long distance call operation Uses 5 × 5 keyboard Easy operation with redial, flash, pause and */T keypads Pause, P→T (pulse-to-tone) can be stored as a digit in memory On-hook debounce time: 150 msec. Minimum tone output duration: 93 msec. Minimum intertone pause: 93 msec. Flash break time (73, 100, 300, 600 msec) selectable by keypad; pause time is 1.0 sec. On-chip power-on reset Uses 3.579545 MHz crystal or ceramic resonator Packaged in 18 or 20-pin plastic DIP The different dialers in the W91360N series are shown in the following table: TYPE NO. W91360N W91360AN REPLACEMENT TYPE NO. W91360 W91360A PULSE (ppS) 10 10 FLASH (mS) 600/300/73/100 600/300/73/100 M/B Pin Pin HANDFREE DIALING Yes PACKAGE (PINS) 18 20 -1- Publication Release Date: May 1997 Revision A2 W91360N SERIES PIN CONFIGURATIONS C1 C1 C2 C3 C4 H/P MUTE VSS XT XT T/P MUTE 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 R4 R3 R2 C4 R1 H/P MUTE VDD MODE XT DTMF XT DP/C5 HKS HFI T/P MUTE VSS C2 C3 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 R4 R3 R2 R1 VDD MODE DTMF DP/C5 HKS HFO W91360N W91360AN PIN DESCRIPTION SYMBOL ColumnRow Inputs 18-PIN 1−4 & 15−18 XT, XT T/P MUTE 7, 8 9 20-PIN 1−4 & 17−20 7, 8 9 I, O O I I/O FUNCTION The keyboard inputs may be used with either a standard 5 × 5 keyboard or an inexpensive single contact (Form A) keyboard. Electronic input from a µC can also be used. A valid key is defined as a single row being connected to a single column. A built-in inverter provides oscillation with an inexpensive 3.579545 MHz crystal or ceramic resonator. The T/P MUTE is a conventional CMOS N-channel open drain output. The output transistor is switched on during dialing sequence and flash break time. Otherwise, it is switched off. Pulling mode pin to VSS places the dialer in tone mode. Pulling mode pin to VDD places the dialer in pulse mode (M/B = 40:60). Floating mode pin places the dialer in pulse mode (M/B = 33.3:66.7). HKS MODE 13 15 I 10 12 I Hook switch input. HKS = VDD: On-hook state. Chip in sleeping mode, no operation. HKS = VSS: Off-hook state. Chip enabled for normal operation. HKS pin is pulled to VDD by an internal resistor. -2- W91360N SERIES Pin Description, continued SYMBOL DP / C5 18-PIN 11 20-PIN 13 I/O O FUNCTION N-channel open drain dialing pulse output. Flash key will cause DP to be active in either tone mode or pulse mode. The timing diagram for pulse mode is shown in Figure 1(a, b, c). Power input pins. In pulse mode, this pin remains in low state at all times. In tone mode, it will output a dual or single tone. Detailed timing diagram for tone mode is shown in Figure 2(a, b, c). OUTPUT FREQUENCY Specified R1 R2 R3 R4 C1 C2 C3 697 770 852 941 1209 1336 1477 Actual 699 766 848 948 1216 1332 1472 Error % +0.28 -0.52 -0.47 +0.74 +0.57 -0.30 -0.34 VDD, VSS DTMF 14, 6 12 16, 6 14 I O HFI , HFO - 10, 11 I, O Handfree control pins. The handfree control state is toggled by a low pulse on the HFI input pin. The status of the handfree control state is described in the following table: CURRENT STATE Hook SW. HFO Low On Hook Off Hook On Hook Off Hook Off Hook Low High High High NEXT STATE Input HFI HFI HFI Off Hook On Hook On Hook HFO High Low Low Low Low High Dialing Yes No Yes Yes No Yes HFI pin is pulled to VDD by an internal resistor. Detailed timing diagram is shown in Figure 3. H/P MUTE 5 5 O The H/P MUTE is a conventional inverter output. During pulse dialing, flash break or hold period, this output is active high; otherwise, it remains in low state. -3- Publication Release Date: May 1997 Revision A2 W91360N SERIES BLOCK DIAGRAM XT XT SYSTEM CLOCK GENERATOR HKS HFI CONTROL ROW (R1 to R4, Vx) KEYBOARD INTERFACE COLUMN (C1 to C4) LOCATION LATCH RAM READ/WRITE COUNTER LOGIC MODE H/P MUTE PULSE CONTROL LOGIC T/P MUTE DP/C5 HFO ROW & COLUMN PROGRAMMABLE COUNTER DTMF D/A CONVERTER DATA LATCH & DECODER FUNCTIONAL DESCRIPTION Keyboard Operation C1 1 4 7 ∗/T F1 • • • • • • • C2 2 5 8 0 F2 C3 3 6 9 # F3 C4 S F4 R/P H DP / C5 M1 M2 M3 SAVE R1 R2 R3 R4 VX S: Store function key H: Hold function key R/P: Redial and pause function key SAVE: Save function key ∗/T: ∗ in tone mode and P→T in pulse mode M1, ..., M3: One-touch memory F1, …, F4: Flash keys, F1 = 600 mS, F2 = 300 mS, F3 = 73 mS, F4 = 100 mS Notes: D1, ..., Dn, D1', ..., Dn' : 0, ..., 9, */T, # Mn: M1, ..., M3 ; Fn: F1, ..., F4 -4- W91360N SERIES Normal Dialing OFF HOOK , (or ON HOOK & HFI ¡õ ), D1 , D2 , ..., Dn 1. D1, D2, ..., Dn will be dialed out. 2. Dialing length is unlimited, but redial is inhibited if length oversteps 32 digits in normal dialing. Redialing OFF HOOK ON HOOK , , (or ON HOOK & HFI ¡õ ON HOOK ), & D1 , D2 ), , ..., R/P Dn Busy, Come OFF HOOK , (or HFI ¡õ 1. The redial memory content will be dialed out. 2. The R/P key can execute the redial function only as the first key-in after off-hook; otherwise, it executes the pause function. 3. If redialing length oversteps 32 digits, the redialing function will be inhibited. Number Store OFF HOOK , (or ON HOOK & HFI ¡õ ), D1 , D2 , ..., Dn , S , S , Mn 1. D1, D2, ..., Dn will be stored in memory location and dialed out. OFF HOOK , (or ON HOOK & HFI ¡õ ), S , D1 , D2 , ..., Dn , S , Mn 2. D1, D2, ..., Dn will be stored in memory location but will not be dialed out. 3. R/P and */T keys can be stored as a digit in memory. is the pause function key. In store mode, R/P 4. The store mode is released after the store function is executed or when the state of the hook switch is changed. Repertory Dialing OFF HOOK , (or ON HOOK & HFI ¡õ ), Mn Access Pause OFF HOOK , (or ON HOOK & HFI ¡õ ), D1 , D2 , R/P , D3 , ..., Dn 1. The pause function can be stored as a digit in memory. 2. The pause function is executed in normal dialing, redial dialing, or memory dialing. 3. The detailed timing diagram for the pause function is shown in Figure 4. Pulse-to-tone (*/T) Publication Release Date: May 1997 Revision A2 -5- W91360N SERIES OFF HOOK , D2' , ..., , (or Dn' ON HOOK & HFI ¡õ ), D1 , D2 , ..., Dn , */T , D1' 1. If the mode switch is set to pulse mode, then the output signal will be: D1, D2, ..., Dn, Pause (3.6 sec.), D1', D2', ..., Dn' (Pulse) D1, D2, ..., Dn, *, D1', D2', ..., Dn' (Tone) (Tone) (Tone ) 2. If the mode switch is set to tone mode, then the output signal will be as follows: 3. The dialer remains in tone mode when the digits have been dialed out and can be reset to pulse mode only by going on-hook. 4. The pulse-to-tone function timing diagram is shown in Figure 5. Flash OFF HOOK , (or ON HOOK & HFI ¡õ ), Fn 1. Fn = F1, ..., F4 2. The dialer will execute a flash break time of 600 mS (F1), 300 mS (F2), 73 mS (F3), or 100 mS (F4). In each case, the flash pause time is 1.0 sec. before the next digit is dialed out. 3. Flash key cannot be stored as a digit in memory, and it has first priority among keyboard functions. 4. The system will return to the initial state after the flash pause time is finished. 5. The flash function timing diagram is shown in Figure 6. Save OFF HOOK 1. If the dialing of , (or D1 ON HOOK to Dn & HFI ¡õ ), D1 , D2 SAVE , ..., Dn , SAVE is finished, pressing the key will cause D1 to Dn to be copied to the save memory. OFF HOOK , (or ON HOOK & HFI ¡õ ), SAVE 2. D1 to Dn will be dialed out after the save key is pressed. Cascaded Dialing 1. 2. Normal Dialing Repertory Dialing + Repertory Dialing + Normal Dialing + Normal Dialing + Repertory Dialing -6- W91360N SERIES 3. Redialing + Normal Dialing + Repertory Dialing Redialing and save dialing are valid as first key-in only. ABSOLUTE MAXIMUM RATINGS PARAMETER DC Supply Voltage Input/Output Voltage SYMBOL VDD−VSS VIL VIH VOL VOH Power Dissipation Operation Temperature Storage Temperature PD TOPR TSTG RATING -0.3 to +7.0 VSS -0.3 VDD +0.3 VSS -0.3 VDD +0.3 120 -20 to +70 -55 to +150 UNIT V V V V V mW °C °C Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device. DC CHARACTERISTICS (VDD−VSS = 2.5V, FOSC. = 3.579545 MHz, TA = 25° C, all outputs unloaded) PARAMETER Operating Voltage Operating Current Standby Current Memory Retention Current DTMF Output Voltage Pre-emphasis DTMF Distortion DTMF Output DC Level DTMF Output Sink Current DP Output Sink Current SYMBOL VDD IOP ISB IMR VTO CONDITIONS Tone, Unloaded Pulse, Unloaded HKS = VSS, No load & No key entry HKS = VDD, VDD = 1.0V Row group, RL = 5 KΩ Col/Row, VDD = 2.0 to 5.5V MIN. 2.0 130 1 1.0 0.2 0.5 TYP. 0.4 0.2 150 2 -30 - MAX. 5.5 0.6 0.4 15 0.2 170 3 -23 3.0 - UNIT V mA µA µA mVrms dB dB V mA mA THD VTDC ITL IPL RL = 5 KΩ, VDD = 2.0 to 5.5V RL = 5 KΩ, VDD = 2.0 to 5.5V VTO = 0.5V VPO = 0.5V -7- Publication Release Date: May 1997 Revision A2 W91360N SERIES DC Characteristics, continued PARAMETER T/P MUTE Output Sink Current H/P MUTE Output Drive/Sink Current HFO Drive/Sink Current Keypad Input Drive Current Keypad Input Sink Current HKS I/P Pull-High Resistor Keypad Resistance SYMBOL IML IHPH IHPL IHFH IHFL IKD IKS RHK RK CONDITIONS VMO = 0.5V VHPH = 2.0V VHPL = 0.5V VHFH = 2.0V VHFL = 0.5V VI = 0.0V VI = 2.5V - MIN. 0.5 0.5 0.5 0.5 0.5 30 200 - TYP. 400 300 - MAX. 5.0 UNIT mA mA mA mA mA µA µA KΩ KΩ AC CHARACTERISTICS (VDD−VSS = 2.5V, FOSC. = 3.579545 MHz, TA = 25° C, all outputs unloaded) PARAMETER Key-in Debounce Key Release Debounce On-hook Debounce Pre-digit Pause Interdigit Pause (Auto Dialing) Make/Break Ratio Tone Output Duration Intertone Pause Flash Break Time SYMBOL TKID TKRD TOHD TPDP 10 ppS TIDP M/B TTD TITP TFB CONDITIONS Mode = VDD Mode = Floating 10 ppS Mode = VDD Mode = Floating Auto dialing Auto dialing F1 F2 F3 F4 MIN. - TYP. 20 20 150 40 33.3 800 40:60 33.3:66.7 93 93 600 300 73 100 1.0 3.6 MAX. - UNIT mS mS mS mS mS % mS mS mS Flash Pause Time Pause Time Notes: TFP TP F1, F2, F3, F4 R/P S S 1. Crystal parameters suggested for proper operation are Rs T OHD TPDP TIDP MB OSCILLATION Figure 1(c) Pulse Mode Auto Dialing Timing Diagram HKS TKRD KEY IN DTMF TTD T/P MUTE H/P MUTE DP OSC. OSCILLATION 3 TKID 4 2 5 TITP TITP TITP Low High OSCILLATION Figure 2(a) Tone Mode Normal Dialing Timing Diagram - 10 - W91360N SERIES Timing Waveforms, continued HKS TKRD KEY IN DTMF TTD T/P MUTE H/P MUTE Low TITP TITP R/P TKID T < T OHD DP OSC. High OSCILLATION Figure 2(b) Tone Mode Auto Dialing Timing Diagram HKS TKRD KEY IN DTMF TTD T/P MUTE H/P MUTE Low TITP R/P TKID T > TOHD DP OSC. High OSCILLATION Figure 2(c) Tone Mode Auto Dialing Timing Diagram - 11 - Publication Release Date: May 1997 Revision A2 W91360N SERIES Timing Waveforms, continued HKS 1 KEY IN 2 H H H H H MODE DP DTMF T/P MUTE H/P MUTE HFI HFO OSC Figure 3. Handfree Function Timing Diagram HKS KEY IN DP T/P MUTE H/P MUTE DTMF OSC. Low 2 R/P 3 TKID MB MB TIDP TPDP TP TPDP OSCILLATION Figure 4. Pause Function Timing Diagram - 12 - W91360N SERIES Timing Waveforms, continued HKS KEY IN DP TPDP T/P MUTE H/P MUTE 2 TKID MB */T 3 TIDP TP DTMF OSC. OSCILLATION Figure 5. Pulse-to-tone Timing Diagram HKS KEY IN DP F TKID Low F F 3 TFP TFB TKID TFB TFP TKID HFI HFO T/P MUTE H/P MUTE DTMF TITP OSC. OSCILLATION Figure 6. Flash Timing Diagram - 13 - Publication Release Date: May 1997 Revision A2 W91360N SERIES Headquarters No. 4, Creation Rd. 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. Rm. 803, World Trade Square, Tower II, 123 Hoi Bun Rd., Kwun Tong, Kowloon, Hong Kong TEL: 852-27516023 FAX: 852-27552064 Winbond Electronics North America Corp. Winbond Memory Lab. Winbond Microelectronics Corp. Winbond Systems Lab. 2730 Orchard Parkway, San Jose, CA 95134, U.S.A. TEL: 1-408-9436666 FAX: 1-408-9436668 Taipei Office 11F, No. 115, Sec. 3, Min-Sheng East Rd., Taipei, Taiwan TEL: 886-2-7190505 FAX: 886-2-7197502 Note: All data and specifications are subject to change without notice. - 14 -