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w91530n series 13-memory tone/pulse dialer with save, keytone, lock, and handfree functions publication release date: february 1999 - 1 - revision a4 general description the w91530n series are tone/pulse switchable telephone dialers with 13 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 dtmf/pulse switchable dialer two by 32 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 20 pps) selectable by bonding option minimum tone output duration: 93 ms (w91534an: 87 ms) minimum intertone pause: 93 ms (w91534an: 87 ms) pause time: 3.6 sec. 300 ms off-hook delay in lock mode ( dp remains low for 300 ms while off hook) flash break time (73 ms, 100 ms, 300 ms, or 600 ms) selectable by keypa d; pause time is 1.0 ms make/break ratio (2:3 or 1:2) selectable by mode pin key tone output for valid keypad entry recognition on-chip power-on reset uses 3.579545 mhz crystal or ceramic resonator 18 or 20-pin dual-in-line plastic package the different dialers in the w91530n series are shown in the following table: type no. replacement type no. pulse ( pp s) flash ( m s) m/b key tone handfree dialing lock package (pins) w91530n w91530 10 600/300/73/100 pin yes - - 18 w91531 w91530an w91530a 10 600/300/73/100 pin yes yes - 20 w91531a w91531ln w91531l 10 600/300/73/100 pin - - yes 18 w91531aln w91531al 10 600/300/73/100 pin - yes yes 20 w91532n w91532 20 600/300/73/100 pin yes - - 18 w91532an w91532a 20 600/300/73/100 pin yes yes - 20 w91534an new type 10 600/300/73/100 pin yes yes - 20 note: the w91534an is for use in france only. in this version, the pause time is not be added in pulse-to-tone function mode.
w91530n series - 2 - pin configurations 1 16 r3 c2 c3 c4 v 2 3 4 5 6 11 12 13 14 15 r1 r2 dd dtmf v 7 8 9 10 t/p mute 17 18 xt c1 r4 ss xt dp/c5 mode kt hks w91530n 1 18 r4 c1 c2 c3 c4 ss v 2 3 4 5 6 13 14 15 16 17 r1 r2 r3 dd mode v 7 8 9 10 11 12 dtmf hks hfo xt t/p mute hfi 19 20 dp/c5 kt xt w91530an/532an/534an 1 16 r3 c2 c3 c4 v 2 3 4 5 6 11 12 13 14 15 r1 r2 dd dtmf v 7 8 9 10 t/p mute 17 18 xt c1 r4 ss xt dp/c5 mode hks w91531ln 1 18 r4 c1 c2 c3 c4 ss v 2 3 4 5 6 13 14 15 16 17 r1 r2 r3 dd mode v 7 8 9 10 11 12 dtmf hks hfo xt t/p mute hfi 19 20 dp/c5 xt w91531aln lock lock
w91530n series publication release date: february 1999 - 3 - revision a4 pin description symbol 18-pin 20-pin i/o function column- row inputs 1 - 4 & 15 - 18 1 - 4 & 17 - 20 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. xt 7 7 i a built-in inverter provides oscillation with an inexpensive 3.579545 mhz crystal. the oscillator ceases when a keypad input is not sensed. the crystal frequency deviation is 0.02%. xt 8 8 o crystal oscillator output pin. t/p mute 9 9 o the t/p mute 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 13 15 i pulling mode pin to v ss places dialer in tone mode. pulling mode pin to v dd places dialer in pulse mode (10 pps) with m/b ratio of 40:60 (w91532/532an is 20 pps). leaving mode pin floating places dialer in pulse mode (10 pps) with m/b ratio of 33.3:66.7 (w91532/532an is 20 pps). hks 10 12 i the hks (hook switch) input is used to sense whether the handset is on-hook or off-hook. in on-hook state, hks = 1: chip is in sleeping mode, no operation. in off-hook state, hks = 0: chip is enabled for normal operation. hks pin is pulled to v dd by internal resistor. kt 5 (except w91531ln) 5 (except w91531aln) o the key tone output is a conventional cmos inverter. the key tone is generated when any valid key is pressed; the kt pin generates a 1.2 khz square wave at 35 ms. when no key is pressed, the kt pin remains in low state.
w91530n series - 4 - pin description, continued symbol 18-pin 20-pin i/o function lock 5 (only for w91531ln) 5 (only for w91531aln) 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 function v dd v ss floating "0", "9" dialing inhibited normal dialing mode "0" dialing inhibited dp / c5 11 13 o n-channel open drain dialing pulse output. flash key will cause dp to be active in either tone mode or pulse mode. in lock mode, the dp remains low for 300 ms during off- hook delay time. the timing diagram for pulse mode is shown in figure 1(a, b, c, d). dtmf 12 14 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 2(a, b, c, d). r1 r2 r3 r4 c1 c2 c3 specified 697 770 852 941 1209 1336 1477 699 766 848 948 1216 1332 1472 actual +0.28 -0.52 -0.47 +0.74 +0.57 -0.30 -0.34 error % output frequency v dd , v ss 14, 6 16, 6 i power input pins for the dialer chip. v dd is the main power and v ss is the ground.
w91530n series publication release date: february 1999 - 5 - revision a4 pin description, continued symbol 18-pin 20-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: hook sw. - on hook off hook on hook off hook off hook current state next state hfo low high high - low high 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 v dd by an internal resistor. detailed timing diagram is shown in figure 3. block diagram row column dtmf xt xt hks mode ram counter system clock generator location latch d/a row & column programmable counter data latch & decoder read/write hfi (r1 to r4, vx) (c1 to c4) t/p mute hfo control logic pulse control logic keyboard interface converter lock dp/c5 kt
w91530n series - 6 - functional description keyboard operation c1 c2 c3 c4 dp / c 5 1 2 3 s m1 r1 4 5 6 f4 m2 r2 7 8 9 a m3 r3 */t 0 # r/p save r4 f1 f2 f3 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 32-digit memory m1, ..., m3: one-touch memory f1, ..., f4: flash function keys: f1 = 600 ms, f2 = 300 ms, f3 = 73 ms, f4 = 100 ms, and all flash pause time is 1.0 ms note: mn = m1, ..., m3; ln = 0, ..., 9, */t, #, pause. normal dialing off hook (or on hook & hfi ?? ), 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 (or on hook & hfi ?? ), d1 , d2 , ..., dn busy, come on hook , off hook (or on hook & hfi ?? ), r/p or on hook & hfi ?? , d1 , d2 , ..., dn , busy, hfi ?? , come 1. the redial memory content will be d1, d2, ..., dn. 2. the r/p key can execute the redial function only as first key-in after off-hook; otherwise, it will execute the pause function.
w91530n series publication release date: february 1999 - 7 - revision a4 number store off hook (or on hook & hfi ?? ), d1 , d2 , ..., dn , s , s , mn (or ln ) 1. if the sequence of the dialed digits d1, d2, ..., dn has not finished, s will be ignored. 2. d1, d2, ..., dn will be dialed out and stored in memory location mn (or ln). off hook (or on hook & hfi ?? ), s , d1 , d2 , ..., dn , s , mn (or ln ) 3. d1, d2, ..., 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 ?? ), d1 , d2 , ..., dn , save 1. d1, d2, ..., dn will be dialed out. 2. if the dialing of d1 to dn is finished, pressing save will cause d1 to dn to be duplicated to save memory. on hook , off hook (or hfi ?? ), save 3. d1 to dn will be dialed out after save key is pressed. repertory dialing procedure off hook (or on hook & hfi ?? ), mn (or save ) 1. the content of memory location mn (or save) will be dialed out. off hook (or on hook & hfi ?? ), a , ln 2. the content of memory location ln will be dialed out. access pause off hook (or on hook & hfi ?? ), 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 or redialing or memory dialing. 3. the pause function timing diagram is shown in figure 4.
w91530n series - 8 - pulse-to-tone (*/t) off hook (or on hook & hfi ?? ), d1 , d2 , ..., dn , */t , d1' , d2' , ..., dn' 1. if the mode switch is set to pulse mode, then the output signal will be: d1, d2, ..., dn, pause, d1', d2', ..., dn' (pulse) (tone) in the case of the w91534an, the output signal will be: d1, d2, ..., dn, *, d1', d2', ..., dn' (pulse) (tone) 2. if the mode switch is set to tone mode, then the output signal will be: d1, d2, ..., dn, * , d1', d2', ..., dn' (tone) (tone) 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 function timing diagram is shown in figure 5. flash off hook (or on hook & hfi ?? ), fn 1. fn = f1, ..., f4. 2. if fn is pressed, the dialer will execute a flash break time of 600 ms (f1), 300 ms (f2), 73 ms (f3), or 100 ms (f4). the pause time is 1.0 second. 3. 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 ?? ), 1. normal dialing + repertory dialing + normal dialing (1st sequence) (2nd sequence) 2. repertory dialing + normal dialing + repertory dialing (1st sequence) (2nd sequence) 3. redialing + normal dialing + repertory dialing (1st sequence) (2nd sequence) redialing and save dialing is valid only for the first key-in.
w91530n series publication release date: february 1999 - 9 - revision a4 absolute maximum ratings parameter symbol rating unit dc supply voltage v dd - v ss -0.3 to +7.0 v input/output voltage v il v ss -0.3 v v ih v dd +0.3 v v ol v ss -0.3 v v oh v dd +0.3 v power dissipation p d 120 mw operating temperature t opr -20 to +70 c storage temperature t stg -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 (v dd -v ss = 2.5v, fosc. = 3.58 mhz, t a = 25 c, all outputs unloaded) parameter symbol conditions min. typ. max. unit operating voltage v dd - 2.0 - 5.5 v operating current i op tone - 0.4 0.6 ma pulse - 0.2 0.4 ma standby current i sb hks = 0, no load & no key entry - - 15 m a memory retention current i mr hks = 1, v dd = 1.0v - - 0.2 m a tone output voltage v to row group, r l = 5 k w 130 150 170 mvrms pre-emphasis col/row, v dd = 2.0 to 5.5v 1 2 3 db dtmf distortion t hd r l = 5 k w , v dd = 2.0 to 5.5v - -30 -23 db dtmf output dc level v tdc r l = 5 k w , v dd = 2.0 to 5.5v 1.0 - 3.0 v
w91530n series - 10 - dc characteristics, continued parameter symbol conditions min. typ. max. unit dtmf output sink current i tl v to = 0.5v 0.2 - - ma dp output sink current i pl v po = 0.5v 0.5 - - ma t/p mute output sink current i ml v mo = 0.5v 0.5 - - ma kt drive/sink i kth v kth = 2.0v 0.5 - - ma current i ktl v ktl = 0.5v 0.5 - - ma hfo drive/sink i hfh v hfh = 2.0v 0.5 - - ma current i hfl v hfl = 0.5v 0.5 - - ma keypad input drive current i kd v i = 0v 4 - - m a keypad input sink current i ks v i = 2.5v 200 400 - m a keypad resistance - - - 5.0 k w ac characteristics parameter symbol conditions min. typ. max. unit key-in debounce t kid - - 20 - ms key release debounce t krd - - 20 - ms on-hook debounce t ohd lock mode - 20 - ms unlock mode - 150 - ms pre-digit pause 1 t pdp1 mode pin = v dd - 40 - ms 10 pps mode pin = floating - 33.3 - ms pre-digit pause 2 t pdp2 mode pin = v dd - 20 - ms 20 pps mode pin = floating - 16.7 - ms interdigit pause t idp 10 pps - 800 - ms (auto dialing) 20 pps - 500 - ms make/break ratio m:b mode pin = v dd - 40:60 - % mode pin = floating - 33.3:66.7 - %
w91530n series publication release date: february 1999 - 11 - revision a4 ac characteristics, continued parameter symbol conditions min. typ. max. unit tone output duration t td except for w91534an - 93 - ms intertone pause t itp except for w91534an - 93 - ms tone output duration t td w91534an only - 87 - ms intertone pause t itp w91534an only - 87 - ms flash break time t fb f1 - 600 - ms f2 - 300 - f3 - 73 - f4 - 100 - flash pause time t fp - 1.0 - s pause time t p - 3.6 - s key tone frequency f kt - 1.2 - khz key tone duration t ktd - 35 - ms one-key redialing pause time t rp - 600 - ms one-key redialing break time t rb - 2.2 - s off-hook delay t ofd lock only - 300 - ms first key-in delay t fkp lock only - 300 - ms notes: 1. crystal parameters suggested for proper operation are rs < 100 w , lm = 96 mh, cm = 0.02 pf, cn = 5 pf, cl = 18 pf, fosc. = 3.579545 mhz 0.02%. 2. crystal oscillator accuracy directly affects these times.
w91530n series - 12 - timing waveforms t idp hks key in dp t/p mute 2 b m t idp t idp t kid t idp t pdp 2 m b 4 t krd 3 < 600 ms < 300 ms t kid dtmf osc. kt low oscillation oscillation t pdp figure 1(a). normal dialing timing diagram (pulse mode without lock function) hks key in dp t/p mute t ofd 2 b m t idp t idp t pdp t kid t idp t pdp 2 m b 4 t kid t krd dtmf osc. kt low oscillation oscillation t fkd 3 < 600 ms < 300 ms figure 1(b). normal dialing timing diagram (pulse mode with lock function)
w91530n series publication release date: february 1999 - 13 - revision a4 timing waveforms, continued hks key in dp t/p mute r/p t kid b m t idp t idp t pdp m b dtmf osc. kt low oscillation t idp < 600 ms t krd figure 1(c). auto dialing timing diagram (pulse mode without lock function) hks key in dp t/p mute t ofd b m t idp t idp t pdp m b dtmf osc. kt low oscillation r/p t kid t idp t fkd < 600 ms 300 ms figure 1(d). auto dialing timing diagram (pulse mode with lock function)
w91530n series - 14 - timing waveforms, continued hks key in t/p mute dtmf 5 t kid 2 4 t krd 3 < 600 ms < 300 ms t td osc. kt dp oscillation oscillation 2 t itp t itp t itp t kid high t itp oscillation t krd figure 2(a). normal dialing timing diagram (tone mode without lock function) hks key in t/p mute dtmf 5 t kid 2 4 t krd 3 < 600 ms < 300 ms t td osc. kt t ofd dp oscillation oscillation t fkd 2 t itp t itp t itp figure 2(b). normal dialing timing diagram (tone mode with lock function)
w91530n series publication release date: february 1999 - 15 - revision a4 timing waveforms, continued hks key in t/p mute dtmf r/p t krd < 600 ms osc. kt dp oscillation t td t itp t itp t kid figure 2(c). auto dialing timing diagram (tone mode without lock function) hks key in t/p mute dtmf r/p t krd < 600 ms 300 ms t td osc. kt t ofd dp oscillation t fkd t itp t itp figure 2(d) auto dialing timing diagram (tone mode with lock function)
w91530n series - 16 - timing waveforms, continued t/p mute hfi hks on hook hfo high chip enble figure 3. handfree timing diagram hks key in dp t/p mute dtmf osc. kt low oscillation < 600 ms 2 t kid r/p t ofd 300 ms 3 b m t pdp m t idp b t pdp t fkd t p oscillation figure 4. pause function timing diagram
w91530n series publication release date: february 1999 - 17 - revision a4 timing waveforms, continued hks key in dp t/p mute dtmf osc. kt oscillation < 600 ms 2 t kid */t t ofd 300 ms 3 b m t pdp t idp t fkd t p oscillation t itp figure 5(a). pulse-to-tone timing diagram (except w91534an) hks key in dp t/p mute */t b m t idp t pdp t kid 2 4 t kid t krd dtmf osc. kt oscillation oscillation t itp itp t figure 5(b). pulse-to-tone timing diagram (w91534an only)
w91530n series - 18 - timing waveforms, continued kt t/p mute f f hks t kid dtmf osc. dp key in low 3 t fb f t itp oscillation hfi hfo t fb t fp figure 6. flash timing diagram headquarters no. 4, creation rd. iii, science-based industrial park, hsinchu, taiwan tel: 886-3-5770066 fax: 886-3-5792766 http://www.winbond.com.tw/ voice & fax-on-demand: 886-2-27197006 taipei office 11f, no. 115, sec. 3, min-sheng east rd., taipei, taiwan tel: 886-2-27190505 fax: 886-2-27197502 winbond electronics (h.k.) ltd. rm. 803, world trade square, tower ii, 123 hoi bun 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. 2727 n. first street, san jose, ca 95134, u.s.a. tel: 408-9436666 fax: 408-5441798 note: all data and specifications are subject to change without notice.

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