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W91570DN series 23-memory tone/pulse dialer with autoredial rtc and lcd display functions publication release date: may 1997 - 1 - revision a2 general description the W91570DN series ics are si-gate cmos ics that provide the signals needed for either pulse or tone dialing. they feature 23 number memories and a 16-digit lcd driver for displaying telephone numbers and calling time. a real time clock is included to display the time of day. the W91570DN series is fabricated using cmos technology providing good performance in low voltage, low power applications. features three by 32 digits for redial, save and mercury memory twenty by 16 digits for one-touch direct or two-touch indirect repertory memory uses 6 10 keyboard pause, pulse-to-tone (*/t) and flash can be stored as a digit in memory minimum tone output duration: 87 ms minimum intertone pause: 87 ms tone/pulse mode pin selectable make/break ratio pin selectable dialing rate (10 or 20 pps) pin selectable pause time (2.0 or 3.6 sec) selectable by keypad flash break time (100, 300, or 600 ms) selectable by keypad built-in 12 or 16-digit lcd driver ( 1/4 duty, 1/3 bias) selectable by mask option built-in calling timer from [00:00] to [59:59] uses 3.579545 mhz tv quartz crystal or ceramic resonator uses 32768 hz crystal as rtc frequency base packaged in 80- pin plastic qfp with rtc provides one-key-redial and auto-redial functions switchable 24-hour clock or 12-hour clock with p.m. mode 0 or 9 dialing inhibition pin for pabx systems or long distance dialing lock out on-hook debounce: 150 msec in normal mode and 20 msec in lock mode off-hook delay 300 ms in lock mode (i.e. dp will keep low for 300 ms while off hook) first key-in delay: 300 msec in lock mode mute key for speech mute cascade and mixed dialing allowed the functio ns of the different dialers in the W91570DN series are shown in the following table: product no. lcd digits lock rtc battery w91572dnf 16 ? 1.5v w91574dnf 16 ? 3v w91576dnf 12 ? 1.5v w91578dnf 12 ? 3v
W91570DN series - 2 - pin configuration 1 25 41 65 80 pin name qfp-80 pin name qfp-80 pin name qfp-80 pin name qfp-80 seg29 1 col2 21 testl 41 seg9 61 seg30 2 col3 22 ap set 42 seg10 62 seg31 3 col4 23 xt2 43 seg11 63 seg32 4 col5 24 xt2 44 seg12 64 test 5 col6 25 v lcd 45 seg13 65 kmute 6 col7 26 v rtc2 46 seg14 66 kt 7 col8 27 cn 47 seg15 67 test 1 8 col9 28 cp 48 seg16 68 v dd 9 row1 29 com1 49 seg17 69 nc/ lock 10 row2 30 com2 50 seg18 70 b/m 11 row3 31 com3 51 seg19 71 dtmf 12 row4 32 com4 52 seg20 72 set rtc 13 row5 33 seg1 53 seg21 73 v ss 14 xt1 34 seg2 54 seg22 74 h/p mute 15 xt1 35 seg3 55 seg23 75 t/p mute 16 hks 36 seg4 56 seg24 76 hfo 17 hfi 37 seg5 57 seg25 77 dp / c10 18 v rtc1 38 seg6 58 seg26 78 mode 19 test 2 39 seg7 59 seg27 79 col1 20 ard 40 seg8 60 seg28 80
W91570DN series publication release date: may 1997 - 3 - revision a2 pin description symbol pin no. i/o function row, column inputs 29 - 33 and 20 - 28 i the keyboard inputs may be used with either the standard 6 10 keyboard, an inexpensive single contact (form a) keyboard or electronic input. a valid key entry is defined by a single row being connected to a single column. xt1, xt 34, 35 i, o a built-in inverter provides oscillation with an inexpensive 3.579545 mhz crystal or ceramic resonater. the oscillator ceases when a keypad input is not sensed after chip enable and dialing is finished. the crystal frequency deviation is 0.02%. t/p mute 16 o the t/p mute is a conventional cmos n-channel open drain output. the output transistor is switched on low level during the dialing sequence (both pulse and tone mode), one-key redial break, auto redial break and flash break. otherwise, it is switched off. h/p mute 15 o the h/p mute is a conventional cmos inverter output. during pulse dialing, one-key redial break, auto redial break, flash break, hold, and mercury functions, this pin will output an active high. it remains in a low state at all other times. kmute 6 o the kmute is a cmos n-channel open drain output. the output transistor is switched on only during mute function. otherwise, it is switched off. hks 36 i hook switch input. hks = v dd or floating: on-hook state. chip in sleeping mode, no operation. hks = v ss : off-hook state. chip enable for normal operation. hks pin is pulled to v dd by internal resistor.
W91570DN series - 4 - pin description, continued symbol pin no. i/o function hfi , hfo 37, 17 i, o handfree control pins. a low pulse on the hfi input pin toggles the handfree control state. status of the handfree control is listed in the following table: current state input hfo dialing high yes on hook high low no off hook high low yes on hook off hook low yes off hook low on hook low no off hook high on hook high yes low hook sw. hfo next state hfi hfi hfi the hfi pin is pulled to v dd by internal resistor. detailed timing diagrams are shown in figure 4(a), 4(b). dp / c10 18 o this pin is a cmos n-channel open drain output. the flash key will cause dp / c10 to go active in either pulse mode or tone mode. in lock mode, the dp / c10 keeps low for 300 ms during off-hook delay time (if first off-hook occured after power-on reset, the dp / c10 will keep high for 100ms then go low 200 ms. it will be recovered when first key-in was accepted). the timing diagram is shown as figure 1(a), 1(b), 1(c), 1(d). dtmf 12 o 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), 2(b), 2(c), 2(d). specified actual error % output frequency r1 r2 r3 r4 c1 c2 c3 697 770 852 941 1209 1336 1477 699 766 848 948 1216 1332 1472 +0.28 -0.52 -0.47 +0.74 +0.57 -0.30 -0.34 mode 19 i pulling the mode pin to v ss places the dialer in tone mode. pulling the mode pin to v dd places the dialer in pulse mode and the dialing rate is 10 pps. floating the mode pin places the dialer in pulse mode and the dialing rate is 20 pps.
W91570DN series publication release date: may 1997 - 5 - revision a2 pin description, continued symbol pin no. i/o function b/m 11 i make:break ratio select pin. if b/m = v dd , the m/b ratio is 40:60. if b/m = v ss , the m/b ratio is 33.3:66.7. the b/m pin is pulled to v dd by internal resistor. lock 10 (for all lock version) i the lock pin is used to prevent "0" or "9" dialing under pabx system long distance call control. when the first key input after reset is "0" or "9", all the key inputs, including "0" or "9" key, become invalid, and the chip generates no output. the telephone is reinitialized by a reset. the following table describes the functions of the lock pin: lock pin floating v dd ss v function normal dialing "0", "9" dialing inhibited "0" dialing inhibited com1 to com4 49 to 52 o com1 to com4 are the common signal output terminal for the 1/4 duty lcd. seg1 to seg32 53 to 80, 1 to 4 o seg1 to seg32 are the 16-digit segment signal outputs. v lcd 45 o power supply pin for lcd driver. a 0.1 m f capacitor is connected between v lcd and v ss . cp, cn 48, 47 i cp is the voltage control capacitor positive pin. cn is the voltage control capacitor negative pin. a 0.1 m f capacitor is connected between these two pins. v dd , v ss 9, 14 i power input pins. xt2, xt2 43, 44 i, o a quartz crystal oscillator provides an rtc frequency time base of 32.768 khz. v rtc1 , v rtc2 38, 46 i either v rtc1 should be connected to a 1.5v battery (w91572dn/576dn) or v rtc2 should be connected to a 3.0v battery(w91574dn/578dn), which supplies the power source for the rtc. set rtc 13 i in the chip enable state, pulling set rtc to v ss toggles the rtc set function on/off, when the set function is toggled on, the rtc can be set using the "hour" and "min" keypads.
W91570DN series - 6 - pin description, continued symbol pin no. i/o function ap set 42 i if ap set = v dd or floating, 24-hour clock mode. if ap set = v ss , 12-hour clock with p.m. mode. ard 40 i auto redial function selection. ard break pause wait interval repeat times v v floating dd 4 secs 30 secs 4 secs 1 sec 1 sec 1 sec 25 secs 30 secs 10 10 1 - ss when ard is left floating, the one-key redial function is enabled. kt 7 o the key tone output is a conventional cmos inverter. the key tone is generated as any valid key pressed, as the kt pin generates a 1.2 khz square wave which keeps on 35 ms; otherwise, it remain in low state. test, test 1 , test 2 , testl 5, 8, 39, 41 i for testing only. nc 10 (for w91572/574/ w91576/578) - no connection.
W91570DN series publication release date: may 1997 - 7 - revision a2 block diagram row column dtmf xt1 xt1 ram counter system clock generator location latch d/a row & column programmable counter data latch & decoder read/write (r1 to r5) (c1 to c9) control logic pulse/ control logic keyboard interface converter segment output decoder backplane signal generator com2 com1 com3 l.c.d. com4 xt2 xt2 real time clock generator tone hks mode b/m hfi h/p mute hfo lock dp/c10 kt t/p mute ard kmute ap set set rtc v dd ss v v rtc1 v rtc2 v lcd cp cn functional description keyboard operation c1 c2 c3 c4 c5 c6 c7 c8 c9 dp / c10 1 2 3 e hour m0 m5 m10 m15 hold1 r1 4 5 6 mute min m1 m6 m11 m16 hold2 r2 7 8 9 a2 save m2 m7 m12 m17 mer r3 */t 0 # r/p1 okr m3 m8 m13 m18 a1 r4 f1 f2 f3 chk tim m4 m9 m14 m19 rtc r5 r/p2 - icon12 icon13 icon14 icon15 icon16 v dd /v x /r6
W91570DN series - 8 - e: store digit mute: mute key f1, f2, f3: flash keys save: save memory key mer: mercury memory key okr: one-key redial function rtc: real time clock toggle key hold1, hold2: hold function keys r/p1, r/p2: redial and pause function keys, p1 is 3.6 sec. and p2 is 2.0 sec. tim: a. display last calling time b. start and/or stop counting up calling time hour and min: active when setting mode is operated after off-hook a1, a2: indirect repertory memory dialing function keys, a1 for page 1 and a2 for page 2 if lp = 0 to 9, mp = m0 to m9, and mq = m10 to m19, then a. a1 + lp (or mp) the memory location m0 to m9 will be selected b. a2 + lp (or mp) the memory location m10 to m19 will be selected c. a1 (or a2) + mq the memory location m10 to m19 will be selected */t: * in tone mode and p ? t in pulse mode chk: a. check dialing number b. check last dialing time c. memory check (except mercury) icon12, ..., icon16: keys reserved for user, can be toggled on any time when the chip is enabled notes: d1, ..., dn, d1', ..., dn': 0, ..., 9, * /t, # r/p: r/p1 or r/p2 an: a1, a2 ln: 0, ..., 9, map to indirect memory location 0, ..., 9 mn: direct memory location m0, ..., m19 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 the length oversteps 32 digits in normal dialing. redialing if ard pin = floating, the one-key redial function is selected: 1. off hook (or on hook & hfi ?? ), d1 , d2 , check memory (or number store ), d3 , ..., dn , busy, on hook , off (or
W91570DN series publication release date: may 1997 - 9 - revision a2 come hook on hook & hfi ?? ), r/p a. the r/p key can execute the redial function only as the first dialing after off-hook; otherwise, it will invoke the pause function. b. the redial memory contents will be d3, ..., dn. c. redial memory can be checked in memory check mode. d. if redialing length oversteps 32 digits, the redialing function will be inhibited. 2. off hook (or on hook & hfi ?? ), d1 , d2 , ..., dn , busy, okr a. if the dialing of d1 to dn is finished, pressing the okr key will cause the pulse output pin dp / c10 to go low for 2.2 seconds break time and 0.6 seconds pause time will be added automatically. b. if the pulses of the dialed digits d1 to dn have not finished, okr will be ignored. c. the one-key redialing function timing diagram is shown in figure 3. number entry 1. off hook (or on hook & hfi ?? ), d1 , d2 , ..., dn , e (many times same as one time), mn (or an , ln ), on hook d1, d2, ..., dn will be stored in memory location mn (or ln) and will be dialed out. 2. off hook (or on hook & hfi ?? ), e , d1 , d2 , ..., dn , e (could be skipped), mn (or an , ln ), on hook 3. off hook (or on hook & hfi ?? ), e , d1 , d2 , ..., dn , mn (or an , ln ), on hook a. d1, d2, ..., dn will be stored in memory location mn (or ln) but will not be dialed out. b. r/p and */t keys can be stored as a digit in memory, in store mode, r/p is the pause function key. c. the store mode is released after the store function is executed or when the state of the hook
W91570DN series - 10 - switch changes is executed. 4. off hook , e , mn (or an , ln ) the redial content excluding memory dialing will be copied to memory location mn (or ln). 5. the first 16 digits will be stored into memory, if the key-in number over 16 digits. save 1. off hook (or on hook & hfi ?? ), d1 , d2 , ..., dn , conversation, e , d1' , d2' , ..., dn' , save d1', d2', ..., dn' will be stored in save memory but will not be dialed out. 2. off hook (or on hook & hfi ?? ), d1 , d2 , ..., dn , save a. if the dialing sequence d1, d2, ..., dn has not finished, save will be ignored. b. if the sequence off hook, d1, d2, ..., dn (dialing finish), save, save is keyed in, d1, d2, ..., dn will be copied to save memory and d1, d2, ..., dn will be dialed out again. c. if the sequence off hook, d1, d2 (dialing finish), save, d3, d4 (dialing finish), save is keyed in, d1, d2 will be copied to save memory and d3, d4 will not be copied to save memory. d. all above sequences will be displayed on lcd. mercury 1. off hook (or on hook & hfi ?? ), d1 , d2 , ..., dn , conversation, e , d1' , d2' , ..., dn' , mer d1', d2', ..., dn' will be stored in mercury memory and display on the lcd, but will not be dialed out. 2. mercury memory content = d1', d2', ..., dn' off hook (or on hook & hfi ?? ), d1 , d2 , ..., dn , mer , on hook , come, off hook (or on hook & hfi ?? ), mer a. the dialing sequence will be d1, d2, ... dn, on hook, off hook, d1', d2', ..., dn'.
W91570DN series publication release date: may 1997 - 11 - revision a2 b. the mer key can be used to execute the mercury function only when it is the first key-in in dialing mode after off-hook or first priority flash operation. c. the contents of mercury memory will not be displayed on the lcd except for mercury mark. d. if the sequence d1, d2, ..., dn, mer, on-hook, off-hook, mer is keyed in, d1, d2, ..., dn will not be copied to mercury memory, d1', d2', ..., dn' will be dialed out, and the mercury mark (icon 10) will be blinking after off-hook. detailed timing diagram is shown in figure 5. e. mercury memory cannot be checked in memory check mode.
W91570DN series - 12 - repertory dialing 1. one-touch direct repertory dialing. a. off hook (or on hook & hfi ?? ), mn (or r/p ) b. off hook (or on hook & hfi ?? ), save (or mer ) c. off hook (or on hook & hfi ?? ), mn (or r/p ), save 2. two-touch indirect repertory dialing. off hook (or on hook & hfi ?? ), an , ln (or mn ) access pause off hook (or on hook & hfi ?? ), d1 , d2 , r/p , d3 , ..., dn , busy, come, on hook , off hook (or on hook & hfi ?? ), r/p 1. the first r/p functions as a pause key and the second as a first key-in redial key. 2. the pause function can be stored in memory, and only one r/p key can be released to the user. 3. the pause function is executed in normal dialing, redialing, or memory dialing. 4. the pause duration of 2.0 or 3.6 seconds per pause is selected through the keypad. 5. the default pause duration is 3.6 seconds after power on. 6. the pause function timing diagram is shown in figure 6. 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 (2.0 sec/3.6 sec), 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 after the digits have been dialed out and can be reset to pulse mode only by going on-hook. 4. the pause time of pulse-to-tone is default to 3.6 seconds. 5. the pulse-to-tone function timing diagram is shown in figure 7.
W91570DN series publication release date: may 1997 - 13 - revision a2 flash (f = f1, f2, f3) off hook (or on hook & hfi ?? ), f 1. the dialer will execute a flash break time of 600 ms (f1), 300 ms (f2), or 100 ms (f3) and pause time of 1s before the next digit (except flash key) is dialed out. 2. flash keeps first priority in normal dialing but insert flash can be stored into memory when flash is the first digit in memory. in this condition, only one flash key can be released to the user. a. e, f1, d1, d2, d3, e, mn then the digit stored in mn will be f1, d1, d2, d3. b. e, d1, f1, d2, d3, e, mn then the digit stored in mn will be d1, d2, d3. c. f1, d1, d2, d3, e, mn then the digit stored in mn will be d1, d2, d3. 3. the system will return to the initial state after the flash pause time is finished. 4. keyboard functions are inhibited when flash break is being executed. 5. the flash timing diagram is shown in figure 8. mute off hook (or on hook & hfi ?? ), mute 1. the mute is switched on and off by a toggle switch. 2. the function timing diagram is shown in figure 9. hold key off hook (or on hook & hfi ?? ), hold1 (or hold2 ) 1. the hold function is toggled on and off by hold1 or hold2 key. when the hold function is toggled on, the hold mark (icon 4) will be lit and all key-ins (except hold keys and icon keys) will be ignored. 2. the following are examples of hold function toggled on and off: a. off hook , hold1 (or hold2 ), hold1 (or hold2 ) b. off hook , hold1 (or hold2 ), hfi ?? c. off hook , hold1 (or hold2 ), on hook , hfi ?? d. on hook & hfi ?? , hold1 (or hold2 ), hfi ?? 3. hold1 and hold2 have the same function in off-hook state. the difference between hold1 and hold2 are shown as follows: a. if off hook , hold1 (or hold2 ), on hook , hold1 is entered, then the dialer will be off-line.
W91570DN series - 14 - if off hook , hold1 (or hold2 ), on hook , hold2 is entered, then the dialer stay at hold function. b. if on hook & hfi ?? , hold1 (or hold2 ), hold1 is entered, then the dialer will be off-line. if on hook & hfi ?? , hold1 , (or hold2 ), hold2 is entered, then the dialer stay at hold function. 4. the function timing diagram is shown in figure 10(a), 10(b), 10(c). adjusting time setting off hook (or on hook & hfi ?? ), set rtc ?? , hour , min , set rtc ?? (or on hook ) 1. only hour and min keys are valid in set rtc mode. 2. hours and minutes count forward as long as the hour or min key is pressed. 3. the on/off function of set rtc is toggled, and the dialer will go back to a previous state after the toggle off set rtc function. 4. if the dialing sequence d1, d2, ..., dn (including flash and pause) has not finished, set rtc (or 'rtc' key pressed) will be ignored. rtc display mode off hook (or on hook & hfi ?? ), rtc 1.the real time clock display mode can be toggled on and off by rtc key. 2. the icon display will not be changed when enter rtc display mode and set rtc mode. check key off hook (or on hook & hfi ?? ), chk , r/p (or okr , save , mn , ..., etc.) the redial (or memory) content will be displayed on the lcd when either r/p or okr is keyed in.
W91570DN series publication release date: may 1997 - 15 - revision a2 auto redial if ard pin = v dd or v ss , the auto redial function is selected: off hook (or on hook & hfi ?? ), okr waiting interval time zone (c) auto dialing time zone (a) pause break time time pause break time zone (a) waiting interval auto dialing time zone (b) time time repeat till n-1 times. time zone (b) 1. during time zone (b) the keypads are inhibited, and in time zone (a), (c) the auto redial can be interrupted by pressing any keypad or by going off-hook. 2. the visible dialing number will be blinking during the waiting time interval. 3. if okr is the first key-in after off-hook or handfree then the first break and pause time will be ignored. 4. the following show examples to interrupt auto redial function: off hook (or on hook & hfi ?? ), okr , any keypad (at break time and waiting interval) 5. if on hook & hfi ?? , okr , off hook a. when in time zome (a) or (c), the auto-redial function will be interrupted and changed to hook mode after off hook b. when in time zome (b), the auto-redial functiion will continue and changed to hook mode after off hook 6. if on hook & hfi ?? , okr , hfi ?? (any time) is entered, the dialer will be off-line. 7. the auto redial function timing diagram is shown in figure 11(a), 11(b). 8. the calling time will auto-count when the auto-redial function is interrupted in break time zone (a) and (c). tim off hook (or on hook & hfi ?? ), d1 , d2 , ..., dn (or redialing or repertory dialing 1 ), conversation 1. if no key is pressed after dialing is finished, the lcd will display counting time after 6 seconds. 2. if the dialing sequence d1, d2, ..., dn has not finished, tim will be ignored. 3. the timer will be initialized by flash and auto redial.
W91570DN series - 16 - cascaded and mixed dialing cascaded dialing 1. definition of cascaded dialing: in cascaded dialing, a new sequence may be pressed before the previous seque nce has been sent out completely. the following are examples of cascaded dialing: example 1: normal dialing + repertory dialing 1 + repertory dialing 2 +... example 2: repertory dialing 1 + normal dialing + repertory dialing 2 +... example 3: redialing + normal dialing + repertory dialing 1 +... 2. normal dialing, redialing, or repertory dialing as represented by each rectangle above is treated as one sequence. 3. at most 64 digits are allowed in cascaded dialing, but there is no limitation on the number of sequences. 4. the content of cascaded dialing may a combination of normal dialing, redialing, and repertory dialing. redialing is vaild only as the first key-in, however. 5. if on hook , off hook , okr is entered, then the cascaded dialing sequence described in the above examples will be dialed out only if there are not more than 32 digits. if the sequence exceeds 32 digits then the redialing is inhibited. mixed dialing 1. definition of mixed dialing: the examples of cascaded dialing given ab ove are also examples of mixed dialing except that in mixed dialing a new sequence may be accepted only when the previous sequence has been dialed out completely. 2. there is no limitation on the number of digits and sequences in the mixed dialing. 3. the content of mixed dialing may be a combination of normal dialing, memory dialing, or one-key redialing. 4. if on hook , off hook , okr is entered, then the mixed dialing sequence described in the above examples will be dialed out only if the total nu mber of digits does not exceed 32. if the total exceeds 32 digits, then redialing is inhibited. combining of cascaded and mixed dialing 1. cascaded dialing and mixed dialing may be combined, and each follows the rules described above. 2. to apply redialing to combinations of cascaded and mixed dialing: on hook , off hook , okr then redialing will be executed only if the total number of digits does not exceed 32. otherwise, the redialing is inhibited.
W91570DN series publication release date: may 1997 - 17 - revision a2 3. if there had been n cascaded sequences with a total of 60 digits dialed, then for the (n+1)th cascaded sequence, one 4-digit normal dialing sequence or one complete repertory dialing sequence (length up to 32 digits) can be dialed. the (n+2)th sequence will not be accepted for cascaded dialing. 4. after a total of 64 digits of cascaded dialing have been completed, mixed dialing can be added. absolution maximum ratings parameter symbol rating unit dc supply voltage v dd - v ss -0.3 to +7.0 v v il v ss - 0.3 input/output voltage v ih v dd + 0.3 v v ol v ss - 0.3 v oh v dd + 0.3 power dissipation p d 120 mw operating temperature t opr -0.5 to +70 c storage temperature t stg -55 to +125 c note: exposure to conditions beyond those listed under absolute maximum ratings may adversely affect the life and reliability of the device. electrical characteristics dc characteristics (v dd - v ss = 2.5v. f osc = 3.58 mhz, t a = 25 c, all outputs unloaded.) parameter sym. conditions min. typ. max. unit operating voltage v dd - 2.0 - 5.5 v operating current i op tone, unloaded - 0.5 0.7 ma pulse, unloaded - 0.4 0.5 standby current i sb hks = 0, unloaded and no key entry - - 15 m a memory retention current i mr hks = 1 v dd = 1.0v - - 0.5 m a tone output voltage v to row group r l = 10 k w 130 150 170 mvrm s pre-emphasis col/row v dd = 2.0 to 5.5v - 2 3 db
W91570DN series - 18 - dc characteristics, continued parameter sym. conditions min. typ. max. unit dtmf distortion thd r l = 10 k w v dd = 2.0 to 5.5v - -30 -23 db dtmf output dc level v tdc v dd = 2.0 to 5.5v 1.0 - 3.0 v 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 common output voltage v ch - 4.2 4.5 4.8 v v cl - - 0 0.3 common output current i ch - -20 - - m a i cl - 20 - - segment output voltage v sh - 4.2 4.5 4.8 v v sl - 0 0.3 segment output current i sh - -5 - - m a i sl - 5 - - rms voltage across a v on - 2.34 2.6 - vrms segment v off - - 1.5 1.65 average dc offset voltage v dc - - - 100 mv hfi high voltage v hfih - 0.8 v dd - v dd v hfi low voltage v hfil - - - 0.2 v dd v t/p mute output sink current i tml v tmo = 0.5v 0.5 - - ma h/p mute output drive current i hmh v hmo = 2.5v 0.5 - - ma h/p mute output sink current i hml v hmo = 0.5v 0.5 - - ma k mute output sink current i kml v tmo = 0.5v 0.5 - - ma keypad input drive current i kd v i = 0v 4 - 80 m a keypad input sink current i ks vi = 2.5v 200 - 400 m a keypad resistance r k - - - 5 k w control input pull up/down resistor r cip b/m, hfi 100 - - k w hks input pull high resistor r hk - - 500 2000 k w ac characteristics
W91570DN series publication release date: may 1997 - 19 - revision a2 (v dd - v ss = 2.5v, f osc. = 3.58 mhz, t a = 25 c, all outputs unloaded.) parameter sym. conditions min. typ. max. unit key-in debounce t kid - - 20 - ms key release debounce t krd - - 20 - ms off hook delay time t ofd - - 300 - ms first key-in delay time t fkd - - 300 - ms on hook debounce time t ohd unlock - 150 - ms lock - 20 - key tone frequency f kt - - 1.2 - khz key tone duration t ktd - - 35 - ms key tone delay t kd - - 20 - ms pulse mute delay t md b/m = v dd - 40 - ms b/m = v ss - 33.3 - pre-digit-pause (1) t pdp1 b/m = v dd - 40 - ms 10 pps b/m = v ss - 33.3 - pre-digit-pause (2) t pdp2 b/m = v dd - 20 - ms 20 pps b/m = v ss - 16.7 - inter-digit pause t idp1 10 pps - 800 - ms (auto dialing) t idp2 20 pps - 500 - make/break ratio m:b b/m = v dd - 40:60 - % b/m = v ss - 33:67 - tone output duration t td - - 87 - ms inter-tone pause t itp - 87 - ms f1 - 600 - flash break time t fb f2 - 300 - ms f3 - 100 - flash pause time t fp f1, f2, f3 - 1 - s pause time t p r/p1 - 3.6 - s r/p2 - 2.0 - one key redialing break time t rb - - 4 - s one key redialing pause time t rp - - 1 - s
W91570DN series - 20 - ac characteristics, continued parameter symbol conditions min. typ. max. unit auto redialing t arb ard = v dd - 4 - s break time ard = v ss - 30 - auto redialing t apr ard = v dd - 1 - s pause time ard = v ss - 1 - auto redialing t wi ard = v dd - 25 - s waiting interval ard = v ss - 30 - lcd frame frequency f lcd - - 32 - hz rtc dc characteristics (v rtc = 1.5v, v ss = 0v , f osc . = 32,768 hz, t a = 25 c, all outputs unloaded.) parameter symbol conditions min. typ. max. unit supply voltage v rtc - 1.2 1.5 1.8 v supply current i rtc no load - 2.0 4.0 m a osc. starting time t osc - - - 3 s osc. output built-in cap. c o cl = 12.5 pf - 25 - pf osc. in trimmer cap. c trim - 5 - 35 pf frequency stability d f/f v dd - v ss = 1.3 to 1.6v - - 1 ppm set rtc input high voltage v seth - v dd -0.3 - v dd v set rtc input low voltage v setl - v ss - v ss +0.3 v 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, and fosc. = 3.579545 mhz 0.02% 2. crystal oscillator accuracy directly affects these times.
W91570DN series publication release date: may 1997 - 21 - revision a2 timing waveforms t idp hks key in t/p mute h/p mute 2 b m t idp t idp t kid t idp t pdp 2 m b t md 4 t krd 3 < 600ms < 300ms t kid dtmf osc. kt low oscillation oscillation t pdp t kd dp/c10 figure 1(a). normal dialing timing diagram (pulse mode without lock function) hks key in dp/c10 t/p mute h/p mute t ofd 2 b m t idp t idp t pdp t kid t idp t pdp 2 m b t md t md 4 t krd dtmf osc. kt low oscillation oscillation t fkd 3 < 600ms < 300ms t kid t kd figure 1(b). normal dialing timing diagram (pulse mode with lock function)
W91570DN series - 22 - timing waveforms, continued hks key in t/p mute h/p mute r/p t kid b m t idp t idp t pdp m b t md t md dtmf osc. kt low oscillation t idp < 600ms t krd t kd dp/c10 figure 1(c). auto dialing timing diagram (pulse mode without lock function) hks key in t/p mute h/p mute t ofd b m t idp t idp t pdp m b t md t md dtmf osc. kt low oscillation r/p t kid t idp t fkd < 600ms 300ms dp/c10 figure 1(d). auto dialing timing diagram (pulse mode with lock function)
W91570DN series publication release date: may 1997 - 23 - revision a2 timing waveforms, continued hks key in h/p mute t/p mute dtmf 5 t kid 2 low 4 t krd 3 < 600ms < 300ms t td osc. kt oscillation oscillation 2 t itp t itp t itp t kid high t itp oscillation t krd t kd dp/c10 figure 2(a). normal dialing timing diagram (tone mode without lock function) hks key in h/p mute t/p mute dtmf 5 t kid 2 low 4 t krd 3 < 600ms < 300ms t td osc. kt t ofd oscillation oscillation t fkd 2 t itp t itp t itp t kd dp/c10 figure 2(b). normal dialing timing diagram (tone mode with lock function)
W91570DN series - 24 - timing waveforms, continued hks key in h/p mute t/p mute dtmf low r/p t krd < 600ms osc. kt oscillation t td t itp t itp t kid high t kd t ohd dp/c10 figure 2(c). auto dialing timing diagram (tone mode without lock function) hks key in h/p mute t/p mute dtmf r/p t krd < 600ms low 300ms t td osc. kt t ofd oscillation low t fkd t itp t itp t kd t ohd dp/c10 figure 2(d). auto dialing timing diagram (tone mode with lock function)
W91570DN series publication release date: may 1997 - 25 - revision a2 timing waveforms, continued hks key in t/p mute h/p mute dtmf osc. kt t ofd b m t pdp low oscillation okr t md t fkd < 600ms 300ms okr kid t b m t pdp t idp t rb t rp t idp dp/c10 figure 3. one-key redial timing diagram t/p mute hks hfo osc. hfi h/p mute high osc. ofd t fkd t osc. osc. ohd t ohd t low dp/c10 figure 4(a). handfree timing diagram (with lock function)
W91570DN series - 26 - timing waveforms, continued t/p mute hks hfo osc. hfi h/p mute high ohd t ohd t high low dp/c10 figure 4(b). handfree timing diagram (without lock function) t/p mute dtmf b mer hks m t kid osc. oscillation t pdp b m t idp key in t itp h/p mute t p dp/c10 figure 5. mercury function timing diagram
W91570DN series publication release date: may 1997 - 27 - revision a2 timing waveforms, continued hks key in t/p mute h/p mute dtmf osc. kt low oscillation < 600ms 2 t kid r/p t ofd 300ms 3 b m t pdp m t idp b t pdp t fkd t md t p t md oscillation dp/c10 figure 6. pause function timing diagram (pulse mode) hks key in t/p mute h/p mute dtmf osc. kt oscillation < 600ms 2 t kid */t t ofd 300ms 3 b m t pdp t idp t fkd t md t p oscillation t itp dp/c10 figure 7. pulse to tone timing diagram
W91570DN series - 28 - timing waveforms, continued t/p mute f f hks t kid dtmf osc. oscillation key in low h/p mute 3 t fp t fb f t kid t kid kt t itp dp/c10 figure 8. first priority flash timing diagram t/p mute b 4 2 hks m t kid osc. oscillation t pdp b m t idp t idp key in 2 mute h/p mute mute kmute b m t kid t kid t idp low dp/c10 figure 9. mute timing diagram timing waveforms, continued
W91570DN series publication release date: may 1997 - 29 - revision a2 hks off hook on hook hfo h/p mute chip enble low high hfi t/p mute hold key figure 10(a). hold and handfree timing diagram note: the hold key cannot be enabled when the chip is disabled. t/p mute hfi hks off hook hfo high h/p mute chip enble hold key figure 10(b). hold and handfree timing diagram note: the hfi and hold key inputs will toggle the hfo signal; as soon as either hfi or hold key is activated, the hfo signal will go high and previous activate inputs will be ignored.
W91570DN series - 30 - timing waveforms, continued t/p mute hfi hks on hook hfo high h/p mute chip enble hold key figure 10(c). hold and handfree timing diagram note: changing the state of the hks signal from high to low will initialize the hfo and hpm mute signals. key in okr kt t t arb kd auto waiting t arp repeat till t arb waiting t arp interval n-1 times redialing interval interval osc. oscillation auto redialing interval dp/c10 figure 11(a). auto redialing timing diagram notes: 1. the auto redial function is enabled in off-hook or handfree state. 2. if okr is the first key-in after off-hook or handfree then the first t arb and t arp will be ignored.
W91570DN series publication release date: may 1997 - 31 - revision a2 timing waveforms, continued key in okr kt t t arb kd t arp t arb t arp osc. oscillation any keypad t kd auto waiting waiting interval redialing interval interval auto redialing interval dp/c10 figure 11(b). auto redialing timing diagram
W91570DN series - 32 - lcd display format a. normal dialing off hook or press the "hfi" switch dial" 0123456789123456" and "78" (here tone mode was selected). blinking b. redialing, save dialing, one touch dialing press the "r/p", "okr", "save" or "mn" key (redial or save or mn = "8123456789") off hook or press the "hfi" switch (here tone mode was selected). blinking
W91570DN series publication release date: may 1997 - 33 - revision a2 c. abbreviated auto dialing press the "a1" key in chip enable condition (l5 = "9375607", here l5 is the fifth memory) press the "5" key off hook or press the "hfi" switch (here tone mode was selected). blinking d. memory check a. off-hook or press the "hfi" switch (l6 = "314p4430256", and here handfree and tone mode were selected) press the "a1" key press the "6" key blinking press the "chk" key (the auto(a) is shown on check and store mode)
W91570DN series - 34 - b. press the "chk" key press "any key" (display 17 to 19 digits) press the "m1" key (display 1 to 16 digits) off-hook or press the "hfi" switch (m1= "886p35p770066pp7126", and here pulse mode was selected) blinking blinking e. timer function a. press the "tim" key (display last calling time) off-hook or press the "hfi" switch (here pulse mode was selected) blinking
W91570DN series publication release date: may 1997 - 35 - revision a2 dial "9375607" if "9375607" is dialed completed, the system will start timer after 6 seconds (timer will start counting up) press the "tim" key (timer will stop) b. dial "9375607" if "9375607" is dialed completed press the "tim" key (timer will start counting up) off-hook or press the "hfi" switch (here pulse mode was selected) blinking
W91570DN series - 36 - press the "a1" key press the "6" key (l6 = "314p4430256") press the "chk" key the system will go back to timer mode after 6 seconds (timer count up continuously) press the "f1", "f2" or "f3" key after flash break is executed blinking (the timer will stop and lcd will display a flash mark and flash pattern) after flash pause is executed blinking
W91570DN series publication release date: may 1997 - 37 - revision a2 f. rtc setting function on-hook (display real time) off-hook, before set pin was switched on entering "setting mode" rtc blinking (here tone mode was selected) adjusting "minute" adjusting "hour" on-hook or switching set pin off rtc (hour counts forward as long as pressing) (minute counts forward as long as pressing) (here on-hook was selected) blinking
W91570DN series - 38 - g. rtc display function on-hook (display real time) press the "mer" key blinking (here off-hook and tone mode was selected) (mer = "035pp770066") blinking off-hook or press the "hfi" switch press the "rtc" key again press the "rtc" key when "mer" dialing is completed within 6 seconds. if the "mer" is dialed completed for 6 seconds
W91570DN series publication release date: may 1997 - 39 - revision a2 h. mute function off-hook or press the "hfi" switch dial "9375607" if "9375607" is dialed completed press the "tim" key (timer will start counting up) blinking press the "mute" press the "mute" key again blinking
W91570DN series - 40 - lcd pattern for data 2 3 4 * # p t p 5 6 7 8 9 e check a f lock 0 1 mute pause/ icon1 inuse/ icon 2 flash/ icon3 hold/ icon4 handfree/ icon5 timer/ icon6 mercury/ iocn10 page 1 (for a1)/ icon8 icon11 tone/ icon7 icon12 icon13 icon14 icon15 icon16 page 2 (for a2)/ icon9 ard/ notes: 1. the icon1 to icon 10 are controlled by function operation. 2. the icon 12 to icon16 can be toggled on/off individ ually, irrespective of keypad function. 3. the off-hook (or hand free) state of icon12 is on, the other icons are off. 4. the icon2 always blinked after power on.
W91570DN series publication release date: may 1997 - 41 - revision a2 lcd panel pattern 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 1 7 2 9 3 0 3 1 3 2 (seg) 1 2 3 c o m 4 (com) c o m c o m c o m bonding pad diagram 1 2 3 4 5 6 7 8 9 10 11 12 13 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 (0,0) x y notes: 1. the substrate must be connected to v ss
W91570DN series - 42 - 2. the chip size is 3450 4280 m m 2
W91570DN series publication release date: may 1997 - 43 - revision a2 bonding pad list pad no. pad name pin name x y pad no. pad name pin name x y 1 seg29<15> 1 -1205.80 1988.70 42 testl 41 1514.90 -2009.80 2 seg30<15> 2 -1581.90 1871.70 43 ap set 42 1589.40 -1805.40 3 seg31<16> 3 -1581.90 1716.70 44 xt2 43 1589.40 -1638.20 4 seg32<16> 4 -1581.90 1561.70 45 xt2 44 1589.40 -1488.20 5 test 5 -1581.90 1389.40 46 v lcd 45 1589.40 -1333.60 6 k mute 6 -1581.90 1231.40 47 v rtc2 46 1589.40 -1179.00 7 kt 7 -1581.90 1073.20 48 cn 47 1589.40 -996.00 8 test1 8 -1581.90 915.20 49 cp 48 1589.40 -844.00 9 v dd 9 -1546.90 749.00 50 com<1> 49 1589.40 -668.90 10 nc/ lock 10 -1581.90 579.10 51 com<2> 50 1589.40 -513.90 11 b/m 11 -1581.90 421.10 52 com<3> 51 1589.40 -358.90 12 dtmf 12 -1581.90 248.00 53 com<4> 52 1589.40 -203.90 13 set rtc 13 -1581.90 67.00 54 seg1<1> 53 1589.40 -48.90 15 v ss 14 -1581.90 -241.00 55 seg2<1> 54 1589.40 106.10 16 h/p mute 15 -1581.90 -391.00 56 seg3<2> 55 1589.40 261.10 17 t/p mute 16 -1581.90 -549.20 57 seg4<2> 56 1589.40 416.10 18 hfo 17 -1581.90 -707.20 58 seg5<3> 57 1589.40 571.10 19 dp / c10 18 -1581.90 -865.40 59 seg6<3> 58 1589.40 726.10 20 mode 19 -1581.90 -1023.40 60 seg7<4> 59 1589.40 881.10 21 col1 20 -1581.90 -1194.10 61 seg8<4> 60 1589.40 1036.10 22 col2 21 -1581.90 -1377.10 62 seg9<5> 61 1589.40 1191.20 23 col3 22 -1581.90 -1560.30 63 seg10<5> 62 1589.40 1346.20 24 col4 23 -1581.90 -1743.30 64 seg11<6> 63 1589.40 1501.20 25 col5 24 -1581.90 -1926.50 65 seg12<6> 64 1589.40 1720.60 26 col6 25 -1196.70 -2009.80 66 seg13<7> 65 1407.40 1987.70 27 col7 26 -1013.70 -2009.80 67 seg14<7> 66 1158.00 1987.70 28 col8 27 -830.50 -2009.80 68 seg15<8> 67 1003.00 1987.70 29 col9 28 -647.50 -2009.80 69 seg16<8> 68 848.00 1987.70 30 row1 29 -464.30 -2009.80 70 seg17<9> 69 693.00 1987.70 31 row2 30 -281.30 -2009.80 71 seg18<9> 70 538.00 1987.70 32 row3 31 -98.10 -2009.80 72 seg19<10> 71 383.00 1987.70 33 row4 32 84.90 -2009.80 73 seg20<10> 72 228.00 1987.70 34 row5 33 268.10 -2009.80 74 seg21<11> 73 72.90 1987.70 35 xt1 34 435.60 -2009.80 75 seg22<11> 74 -82.10 1987.70 36 xt1 35 585.60 -2009.80 76 seg23<12> 75 -237.10 1987.70 37 hks 36 735.60 -2009.80 77 seg24<12> 76 -392.10 1987.70
W91570DN series - 44 - bonding pad list, continued pad no. pad name pin name x y pad no. pad name pin name x y 38 hfi 37 885.60 -2009.80 78 seg25<13> 77 -547.10 1987.70 39 v rtc1 38 1040.70 -2009.80 79 seg26<13> 78 -702.10 1987.70 40 test2 39 1198.80 -2009.80 80 seg27<14> 79 -857.10 1987.70 41 ard 40 1356.80 -2009.80 81 seg28<14> 80 -1012.10 1987.70 14 disp -1581.90 -91.00 note: pad 14 is for 12-digit lcd display bonding only.
W91570DN series publication release date: may 1997 - 45 - revision a2 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 taipei office 11f, no. 115, sec. 3, min-sheng east rd., taipei, taiwan tel: 886-2-7190505 fax: 886-2-7197502 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. 2730 orchard parkway, san jose, ca 95134, u.s.a. tel: 1-408-9436666 fax: 1-408-9436668 note: all data and specifications are subject to change without notice.

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