13-MEMORY TONE/PULSE DIALER WITH SAVE, KEYTONE, LOCK, AND HANDFREE FUNCTIONS

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1 1-MEMORY TONE/PULSE DIALER WITH SAVE, KEYTONE, LOCK, AND HANDFREE FUNCTIONS GENERAL DESCRIPTION The W9150N series are tone/pulse switchable telephone dialers with 1 memories, keytone or lock, and handfree dialing control. These chips are fabricated using Winbond's high-performance CMOS technology and thus offer good performance in low-voltage, low-power operations. FEATURES /pulse switchable dialer Two by digits redial and save memory Three by 16 digits one-touch direct repertory memory Ten by 16 digits two-touch indirect repertory memory Pulse-to-tone (*/T) keypad for long distance call operation Cascaded dialing 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 0 or 9 dialing inhibition pin for PABX system or long distance dialing lock out Dialing rate (10 pps or 0 pps) selectable by bonding option Minimum tone output duration: 9 ms (W9154AN: 87 ms) Minimum intertone pause: 9 ms (W9154AN: 87 ms) Pause time:.6 sec. 00 ms off-hook delay in lock mode ( remains low for 00 ms while off hook) Flash break time (7 ms, 100 ms, 00 ms, or 600 ms) selectable by keypad; pause time is 1.0 ms Make/break ratio (: or 1:) selectable by MODE pin Key tone output for valid keypad entry recognition On-chip power-on reset Uses MHz crystal or ceramic resonator 18 or 0-pin dual-in-line plastic package The different dialers in the W9150N series are shown in the following table: TYPE NO. REPLACEMENT TYPE NO. PULSE (pps) FLASH (ms) M/B KEY TONE HANDFREE DIALING LOCK PACKAGE (PINS) W9150N W /00/7/100 Pin Yes W9151 W9150AN W9150A /00/7/100 Pin Yes Yes - 0 W9151A W9151LN W9151L /00/7/100 Pin - - Yes 18 W9151ALN W9151AL /00/7/100 Pin - Yes Yes 0 W915N W /00/7/100 Pin Yes W915AN W915A 0 600/00/7/100 Pin Yes Yes - 0 W9154AN New type /00/7/100 Pin Yes Yes - 0 Note: The W9154AN is for use in France only. In this version, the pause time is not be added in pulse-to-tone function mode Revision A

2 PIN CONFIGURATIONS C1 1 0 R4 C R4 C 19 R C 17 R C 18 R C 16 R C R1 C R VDD 5 14 VDD V SS 6 15 MODE VSS 6 1 MODE /C /C HFI HFO W9150N W9150AN/5AN/54AN C1 1 0 R4 C R4 C 19 R C 17 R C 18 R C 16 R C R1 C R1 LOCK 5 16 VDD LOCK 5 14 VDD V SS 6 15 MODE VSS 6 1 MODE /C /C HFI HFO W9151LN W9151ALN - -

3 PIN DESCRIPTION SYMBOL 18-PIN 0-PIN I/O FUNCTION Column- Row Inputs 1 4 & & 17 0 I The keyboard input is compatible with a standard 5 x 5 keyboard, an inexpensive single contact (Form A) keyboard, and electronic input. In normal operation, any single button can be pushed to produce dual tone, pulses, or functions. Activation of two or more buttons will result in no response except for single tone. 7 7 I A built-in inverter provides oscillation with an inexpensive MHz crystal. The oscillator ceases when a keypad input is not sensed. The crystal frequency deviation is 0.0%. 8 8 O Crystal oscillator output pin. 9 9 O The is a conventional CMOS N-channel open drain output. The output transistor is switched on low level during dialing sequence (both pulse and tone mode). Otherwise, it is switched off. MODE 1 15 I Pulling mode pin to VSS places dialer in tone mode. Pulling mode pin to VDD places dialer in pulse mode (10 pps) with M/B ratio of 40:60 (W915/5AN is 0 pps). Leaving mode pin floating places dialer in pulse mode (10 pps) with M/B ratio of.:66.7 (W915/5AN is 0 pps) I The (hook switch) input is used to sense whether the handset is on-hook or off-hook. 5 (except W9151LN) 5 (except W9151ALN) O In on-hook state, = 1: chip is in sleeping mode, no operation. In off-hook state, = 0: chip is enabled for normal operation. pin is pulled to VDD by internal resistor. The key tone output is a conventional CMOS inverter. The key tone is generated when any valid key is pressed; the pin generates a 1. KHz square wave at 5 ms. When no key is pressed, the pin remains in low state. - - Revision A

4 Pin Description, continued SYMBOL 18-PIN 0-PIN I/O FUNCTION LOCK 5 (only for W9151LN) 5 (only for W9151ALN) I The function of this terminal is to prevent "0" dialing and "9" dialing under PABX system long distance call control. When the first key input after reset is 0 or 9, all key inputs, including the 0 or 9 key, become invalid and the chip generates no output. The telephone is reinitialized by a reset. The function of the LOCK pin is shown below: LOCK PIN V DD Floating V SS FUNCTION "0", "9" dialing inhibited Normal dialing mode "0" dialing inhibited / C O N-channel open drain dialing pulse output. Flash key will cause to be active in either tone mode or pulse mode. In lock mode, the remains low for 00 ms during offhook delay time. The timing diagram for pulse mode is shown in Figure 1(a, b, c, d) O During pulse dialing, this pin remains in low state regardless of keypad input. In tone mode, it will output a dual or single tone. A detailed timing diagram for tone mode is shown in Figure (a, b, c, d). OUTPUT FREQUENCY Specified Actual Error % R R R R C C C VDD, VSS 14, 6 16, 6 I Power input pins for the dialer chip. VDD is the main power and VSS is the ground

5 Pin Description, continued SYMBOL 18-PIN 0-PIN I/O FUNCTION HFI, HFO - 10, 11 I, O Handfree control pins. A low pulse on the HFI input pin toggles the handfree control state. Status of the handfree control state is listed in the following table: CURRENT STATE HOOK SW. HFO INPUT NE STATE HFO DIALING - HFI High Yes On Hook High HFI No Off Hook High HFI Yes On Hook - Off Hook Yes Off Hook On Hook No Off Hook High On Hook High Yes HFI pin is pulled to VDD by an internal resistor. Detailed timing diagram is shown in Figure. BLOCK DIAGRAM HFI SYSTEM CLOCK GENERATOR ROW (R1 to R4, Vx) KEYBOARD INTERFACE READ/WRITE COUNTER CONTROL LOGIC LOCK MODE COLUMN (C1 to C4) LOCATION LATCH RAM PULSE CONTROL LOGIC /C5 HFO D/A CONVERTER ROW & COLUMN PROGRAMMABLE COUNTER DATA LATCH & DECODER Revision A

6 FUNCTIONAL DESCRIPTION Keyboard Operation C1 C C C4 /C5 1 S M1 R F4 M R A M R */T 0 # R/P SAVE R4 F1 F F Vx S: Store function key A: Indirect repertory memory dialing function key R/P: Redial and pause function key */T: * in tone mode and P T key in pulse mode SAVE: Save function key for one-touch -digit memory M1,..., M: One-touch memory F1,..., F4: Flash function keys: F1 = 600 ms, F = 00 ms, F = 7 ms, F4 = 100 ms, and all flash pause time is 1.0 ms Note: Mn = M1,..., M; Ln = 0,..., 9, */T, #, Pause. Normal Dialing OFF HOOK (or ON HOOK & HFI ı ), D1, D,..., Dn 1. D1, D,..., Dn will be dialed out.. Dialing length is unlimited, but redial is inhibited if length oversteps digits in normal dialing. Redialing OFF HOOK (or ON HOOK & HFI ı ), D1, D,..., Dn BUSY, Come ON HOOK, OFF HOOK (or ON HOOK & HFI ı ), R/P or ON HOOK & HFI ı, D1, D,..., Dn, BUSY, HFI ı, Come 1. The redial memory content will be D1, D,..., Dn.. The R/P key can execute the redial function only as first key-in after off-hook; otherwise, it will execute the pause function

7 Number Store OFF HOOK (or ON HOOK & HFI ı ), D1, D,..., Dn, S, S, Mn (or Ln ) 1. If the sequence of the dialed digits D1, D,..., Dn has not finished, S will be ignored.. D1, D,..., Dn will be dialed out and stored in memory location Mn (or Ln). OFF HOOK (or ON HOOK & HFI ı ), S, D1, D,..., Dn, S, Mn (or Ln ). D1, D,..., Dn will be stored in memory location Mn (or Ln) but will not be dialed out. 4. R/P and */T keys can be stored as a digit in memory, but R/P key cannot be the first digit. In store mode, R/P is the pause function key. 5. The store mode is released after the store function is executed or when the state of the hook switch changes or the flash function is executed. Save OFF HOOK (or ON HOOK & HFI ı ), D1, D,..., Dn, SAVE 1. D1, D,..., Dn will be dialed out.. If the dialing of duplicated to save memory. D1 to Dn is finished, pressing SAVE will cause D1 to Dn to be ON HOOK, OFF HOOK (or HFI ı ), SAVE. D1 to Dn will be dialed out after SAVE key is pressed. Repertory Dialing Procedure OFF HOOK (or ON HOOK & HFI ı ), Mn (or SAVE ) 1. The content of memory location Mn (or save) will be dialed out. OFF HOOK (or ON HOOK & HFI ı ), A, Ln. The content of memory location Ln will be dialed out. Access Pause Revision A

8 OFF HOOK (or ON HOOK & HFI ı ), D1, D, R/P, D,..., Dn 1. The pause function can be stored as a digit in memory.. The pause function is executed in normal dialing or redialing or memory dialing.. The pause function timing diagram is shown in Figure 4. Pulse-to-tone (*/T) OFF HOOK (or ON HOOK & HFI ı ), D1, D,..., Dn, */T, D1', D',..., Dn' 1. If the mode switch is set to pulse mode, then the output signal will be: D1, D,..., Dn, Pause, D1', D',..., Dn' (Pulse) (Tone) In the case of the W9154AN, the output signal will be: D1, D,..., Dn, *, D1', D',..., Dn' (Pulse) (Tone). If the mode switch is set to tone mode, then the output signal will be: D1, D,..., Dn, *, D1', D',..., Dn' (Tone) (Tone). 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 function timing diagram is shown in Figure 5. Flash OFF HOOK (or ON HOOK & HFI ı ), Fn 1. Fn = F1,..., F4.. If Fn is pressed, the dialer will execute a flash break time of 600 ms (F1), 00 ms (F), 7 ms (F), or 100 ms (F4). The pause time is 1.0 second.. Flash key cannot be stored as a digit in memory. The flash key 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. Cascaded Dialing OFF HOOK (or ON HOOK & HFI ı ), 1. Normal dialing + Repertory dialing + Normal dialing (1st sequence) (nd sequence) - 8 -

9 . Repertory dialing + Normal dialing + Repertory dialing (1st sequence) (nd sequence). Redialing + Normal dialing + Repertory dialing (1st sequence) (nd sequence) Redialing and save dialing is valid only for the first key-in. ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATING UNIT DC Supply Voltage VDD VSS -0. to +7.0 V Input/Output Voltage VIL VSS -0. V VIH VDD +0. V VOL VSS -0. V VOH VDD +0. V Power Dissipation PD 10 mw Operating Temperature TOPR -0 to +70 C Storage Temperature TSTG -55 to +150 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 =.5V, Fosc. =.58 MHz, TA = 5 C, all outputs unloaded) PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT Operating Voltage VDD V Operating Current IOP Tone ma Pulse ma Standby Current ISB = 0, No load & No key entry µa Memory Retention IMR = 1, VDD = 1.0V Current µa Tone Output Voltage VTO Row group, RL = 5 KΩ mvrm s Pre-emphasis Col/Row, VDD =.0 to 1 db 5.5V Distortion THD RL = 5 KΩ, VDD =.0 to db Output DC Level VTDC 5.5V RL = 5 KΩ, VDD =.0 to 5.5V V Revision A

10 DC Characteristics, continued PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT Output Sink Current ITL VTO = 0.5V ma Output Sink Current IPL VPO = 0.5V ma Output Sink Current IML VMO = 0.5V ma Drive/Sink IH VH =.0V ma Current IL VL = 0.5V ma HFO Drive/Sink IHFH VHFH =.0V ma Current IHFL VHFL = 0.5V ma H/P MUTE IHPH VHPH =.0V ma Drive/Sink Current IHPL VHPL = 0.5V ma Keypad Input Drive Current IKD VI = 0V µa Keypad Input Sink Current IKS VI =.5V µa Keypad Resistance KΩ AC CHARACTERISTICS PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT Key-in Debounce TKID ms Key Release Debounce TKRD ms On-hook Debounce TOHD Lock Mode ms Unlock Mode ms Pre-digit Pause 1 TP1 Mode Pin = VDD ms 10 pps Mode Pin = Floating -. - ms Pre-digit Pause TP Mode Pin = VDD ms 0 pps Mode Pin = Floating ms Interdigit Pause TI 10 pps ms (Auto dialing) 0 pps ms Make/Break Ratio M:B Mode Pin = VDD - 40:60 - % Mode Pin = Floating -.: %

11 AC Characteristics, continued PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT Tone Output Duration TTD Except for W9154AN ms Intertone Pause TITP Except for W9154AN ms Tone Output Duration TTD W9154AN Only ms Intertone Pause TITP W9154AN Only ms Flash Break Time TFB F ms F F F Flash Pause Time TFP S Pause Time TP S Key Tone Frequency F KHz Key Tone Duration TD ms One-key Redialing Pause Time One-key Redialing Break Time TRP ms TRB -. - S Off-hook Delay TOFD Lock Only ms First Key-in Delay TFKP Lock Only ms Notes: 1. Crystal parameters suggested for proper operation are Rs < 100 Ω, Lm = 96 mh, Cm = 0.0 pf, Cn = 5 pf, Cl = 18 pf, Fosc. = MHz ±0.0%.. Crystal oscillator accuracy directly affects these times Revision A

12 TIMING WAVEFORMS < 00 ms 4 T KRD T I M B M B T I T I T I T P T P Figure 1(a). Normal Dialing Timing Diagram (Pulse Mode Without Lock Function) < 00 ms T OFD 4 M B T I M B T I T P T KRD T I T P T FKD Figure 1(b). Normal Dialing Timing Diagram (Pulse Mode with Lock Function) - 1 -

13 Timing Waveforms, continued R/P T KRD M B M B T I T I T P T I Figure 1(c). Auto Dialing Timing Diagram (Pulse Mode Without Lock Function) 00 ms R/P T OFD M B T P T I M B T I T I T FKD Figure 1(d). Auto Dialing Timing Diagram (Pulse Mode with Lock Function) Revision A

14 Timing Waveforms, continued < 00 ms 4 5 T KRD T KRD T TD High Figure (a). Normal Dialing Timing Diagram (Tone Mode Without Lock Function) < 00 ms 4 5 T KRD T FKD T TD T OFD Figure (b). Normal Dialing Timing Diagram (Tone Mode with Lock Function)

15 Timing Waveforms, continued R/P T KRD T TD TITP Figure (c). Auto Dialing Timing Diagram (Tone Mode Without Lock Function) R/P T KRD 00 ms T OFD T FKD T TD Figure (d) Auto Dialing Timing Diagram (Tone Mode with Lock Function) Revision A

16 Timing Waveforms, continued ON HOOK HFI HFO High CHIP ENBLE Figure. Handfree Timing Diagram 00 ms R/P TOFD T I MB T P MB T P T P TFKD Figure 4. Pause Function Timing Diagram

17 Timing Waveforms, continued 00 ms */T T OFD MB T P T P T I TFKD Figure 5(a). Pulse-to-tone Timing Diagram (except W9154AN) T KRD 4 */T M B T P T I Figure 5(b). Pulse-to-tone Timing Diagram (W9154AN only) Revision A

18 Timing Waveforms, continued F F F TFP T FB HFI T FB HFO Figure 6. Flash Timing Diagram

19 Headquarters Winbond Electronics (H.K.) Ltd. No. 4, Creation Rd. III, Rm. 80, World Trade Square, Tower II, Science-Based Industrial Park, 1 Hoi Bun Rd., Kwun Tong, Hsinchu, Taiwan Kowloon, Hong Kong TEL: TEL: FAX: FAX: Voice & Fax-on-demand: Taipei Office 11F, No. 115, Sec., Min-Sheng East Rd., Taipei, Taiwan TEL: FAX: Winbond Electronics North America Corp. Winbond Memory Lab. Winbond Microelectronics Corp. Winbond Systems Lab. 70 Orchard Parkway, San Jose, CA 9514, U.S.A. TEL: FAX: Note: All data and specifications are subject to change without notice Revision A

W91350N SERIES 13-MEMORY TONE/PULSE DIALER WITH HANDFREE AND HOLD FUNCTIONS GENERAL DESCRIPTION FEATURES

W91350N SERIES 13-MEMORY TONE/PULSE DIALER WITH HANDFREE AND HOLD FUNCTIONS GENERAL DESCRIPTION FEATURES GENERAL DESCRIPTION 13-MEMORY TONE/PULSE DIALER WITH HANDFREE AND HOLD FUNCTIONS The W91350N series are tone/pluse switchable telephone dialers with thirteen memories, hold function, and a handfree dialing