Page 1
W91550DN SERIES
13-MEMORY TONE/PULSE DIALER
WITH LCD AND LOCK FUNCTIONS
GENERAL DESCRIPTION
The W91550DN series are Si-gate CMOS IC tone/pulse switchable dialers containing 13 number
memories and a 10-digit LCD driver for displaying telephone numbers and calling time, including a
16-digit × 3 one-touch memory, 16-digit × 10 two-touch memory dialing, and 32-digit × 2 redial and
save memory. These dialers also provide a secrecy key, flash, two-way handfree dialing, one-key
redial, hold and lock functions.
FEATURES
• Tone/pulse switchable dialer
• Two by 32-digit redial and save memory (or mercury memory)
• Three by 16-digit one-touch direct repertory memory
• Ten by 16-digit two-touch indirect repertory memory
• Memory check function
• Save/mercury function selected by pin option
• Typical interdigit pause (IDP): 800 msec (10 ppS) in pulse mode
• Uses 4 × 7 keyboard
• Mute key for secrecy control
• Minimum tone output duration/inter-tone pause: 87/87 mS
• Flash pause time: 1.2 sec.
• Flash break time (98, 300, 600 msec) selectable by keypad
• Pause time (2.0, 3.6, 4.0 sec.) selectable by mask option
• Pulse-to-tone (*/T) keypad for long distance call operation
• 0 or 9 dialing inhibition pin for PABX system or long distance dialing lock out
• Make/break ratio selected by pin option
• Built-in 10-digit LCD driver for telephone number display and calling time (1/3 duty, 1/2 bias)
• Built-in calling time from (00:00) to (59:59)
• On-chip power-on reset and clear LCD
• On hook debounce: 250 msec in normal mode (20 msec in lock mode)
• First key-in delay: 300 msec in lock mode
• Uses 3.579545 MHz crystal or ceramic resonator
• Packaged in 64-pin QFP
• The different dialers in the W91550DN series are shown in the following table:
TYPE NO. FUNCTION PACKAGE
W91550DNF Default pause time is 3.6 sec. and all F1, F2, F3 are first priority. QFP
W91550DNF-1 Same as W91550DN except F3 can be stored as a digit. QFP
W91550DNH Default pause time is 3.6 sec. and all F1, F2, F3 are first priority. Chip
W91550DNH-1 Same as W91550DN except F3 can be stored as a digit. Chip
Publication Release Date: November 1998
- 1 - Revision A3
Page 2
PIN CONFIGURATION
KMUTE
TEST
XT
MUTE
HKS
HFI
M42DP
LOCK
52
W91550DN SERIES
33
64
1
20
NO. NAME NO. NAME NO. NAME NO. NAME
1
17 5C 33 10C 49 C6
2 COM3 18 6A 34 VSS 50 R1
3 1A 19 6B 35 DTMF 51 R2
4 1B 20 6C 36 B/M 52 R3
5 1C 21 7A 37
53 R4
6 2A 22 7B 38 VDD 54 XT
7 2B 23 7C 39 HPM MUTE 55
8 2C 24 8A 40
T/P
56
9 3A 25 8B 41 ATS 57
10 3B 26
S/
58 HFO
11 3C 27 8C 43 MODE 59 VLCD
12 4A 28 9A 44 C1 60 CP
13 4B 29 9B 45 C2 61 CN
14 4C 30 9C 46 C3 62 COM1
15 5A 31 10A 47 C4 63 COM2
16 5B 32 10B 48 C5 64
- 2 -
Page 3
PIN DESCRIPTION
XT
MUTE
MUTE
KMUTE
KMUTE
HKS
HKS
HKS
HKS
DP
SYMBOL PIN I/O FUNCTION
W91550DN SERIES
Column,
Row
Inputs
XT,
T/P
HPM MUTE 39 O The HPM MUTE is a conventional CMOS inverter output. During
MODE 43 I Pulling mode pin to VSS places the dialer in tone mode.
44−49
&
50−53
54, 55 I, O A built-in inverter provides oscillation with an inexpensive
40 O
1 O
I
The keyboard input may be used with either the standard 4 × 7
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.
3.579545MHz crystal. Most crystals do not vary by more than 0.02%.
The oscillator oscillates in off-hook or handfree mode but oscillation
ceases in on-hook mode or when the handfree mode is released.
The T/P
output. The output transistor is switched on during pulse and tone
mode dialing sequences and flash breaks. Otherwise, it is switched
off.
pulse dialing, flash break, hold, and mercury mute functions, this pin
will output an active high. Otherwise, it remains in a low state.
The
transistor is switched on only during the mute function. Otherwise, it is
switched off.
Pulling mode pin to VDD places the dialer in pulse mode.
Pulse or tone mode can be selected any time.
is a conventional CMOS N-channel open drain
is a CMOS N-channel open drain output. The output
56 I Hook switch input.
= VDD: On-hook state. Chip in sleeping mode, no operation.
= VSS: Off-hook state. Chip enable for normal operation.
pin is pulled to VDD by internal resistor.
42 O This pin is a CMOS inverter output. The timing diagram is shown as
Figure 1(a), 1(b), 1(c), 1(d). Flash key will cause DP to go active in
either pulse mode or tone mode.
Publication Release Date: November 1997
- 3 - Revision A3
Page 4
W91550DN SERIES
M
Pin Description, continued
SYMBOL PIN I/O FUNCTION
DTMF 35 O In pulse mode, this pin remains in low state at all times.
In tone mode, it will output a dual or single tone. A detailed timing
diagram for tone mode is shown in Figure 2(a), 2(b), 2(c) 2(d).
Output Frequency
Specified Actual Error %
R1
R2
R3
R4
C1
C2
C3
697
770
852
941
1209
1336
1477
VDD, VSS 38, 34 I Power input pins.
B/M 36 I Make: Break ratio select pin.
If B/M = VDD, the M/B ratio is 40:60.
If B/M = VSS, the M/B ratio is 33.3:66.7.
B/M pin is pulled to VDD by internal resistor.
699
766
848
948
1216
1332
1472
+0.28
-0.52
-0.47
+0.74
+0.57
-0.30
-0.34
S/
26 I Save and mercury select pin.
If S/M = VDD, the save function is selected.
If S/M = VSS, the mercury function is selected.
S/M pin is pulled to VDD by internal resistor.
ATS 41 I If ATS = VDD, the auto timer function is enabled.
If ATS = VSS, the auto timer function is disabled.
ATS pin is pulled to VDD by internal resistor.
- 4 -
Page 5
Pin Description, continued
HFI
HFI
HFI
LOCK
LOCK
LOCK
TEST
TEST
TEST
SYMBOL PIN I/O FUNCTION
W91550DN SERIES
, HFO
57, 58 I, O
64 I
Handfree control pins. A low pulse on the
input pin toggles the
handfree control state.
Status of the handfree control is listed in the following table:
CURRENT STATE
Hook SW.
−
On Hook High
Off Hook
On Hook
Off Hook
Off Hook High On Hook High
HFO
Low
High
Low
HFI
HFI
HFI
Off Hook
−
On Hook
Input
NEXT STATE
HFO
High
Low
Low Yes
Low
Low
Dialing
Yes
No
Yes
No
Yes
pin is pulled to VDD by internal resistor.
Detailed timing diagram is shown in Figure 4.
The
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
pin:
37 I
LOCK PIN
Floating
VDD
V
SS
In normal operation, pulling the
tone. In testing operation, pulling the
FUNCTION
Normal dialing
"0", "9" dialing inhibited
"0" dialing inhibited
pin to VDD inhibits the single
pin to VSS enables a
single tone to be created by pressing two keys simultaneously, and all
of the timing parameters for pulse dialing are faster than in normal
operation.
VLCD 59 I Power supply pin for LCD driver.
A 1µF capacitor is connected between VLCD and VSS.
CP, CN 60, 61 I CP is the voltage control capacitor positive pin.
CN is the voltage control capacitor negative pin.
A 1 µF capacitor is connected between these two pins.
Publication Release Date: November 1997
- 5 - Revision A3
Page 6
Pin Description, continued
SYMBOL PIN I/O FUNCTION
W91550DN SERIES
COM1−
62, 63, 2 O
COM3
1(A, B, C)−
10(A, B, C)
3−33
(unless
26-pin)
BLOCK DIAGRAM
ROW
(R1 ~ R4)
COLUMN
(C1 ~ C6)
O
KEYBOARD
INTERFACE
COM1−COM3 are common signal output terminals for the 1/3 duty
LCD.
1(A, B, C) −10(A, B, C) are 10-digit segment signal output terminals.
XT XT
HKS
B/M
MODE
LOCK
TEST
ATS
S/M
HFI
T/P MUTE
HPM MUTE
KMUTE
DP
HFO
LOCATION
LATCH
READ/WRITE
COUNTER
RAM
SYSTEM CLOCK
GENERATOR
CONTROL
LOGIC
PULSE
CONTROL
LOGIC
DTMF
D/A
CONVERTER
ROW & COLUMN
PROGRAMMABLE
COUNTER
BACKPLAN SIGNAL
GENERATOR
COM1 COM2
COM3
- 6 -
DATA LATCH
& DECODER
SEGMENT OUTPUT
DECODER
L.C.D.
Page 7
FUNCTIONAL DESCRIPTION
M
HFI
¡õ
HFI
¡õ
HFI
¡õ
Keyboard Operation
C1 C2 C3 C4 C5 C6 Vss
1 2 3 E M1 TIM R1
4 5 6 CHK M2 F1 MUTE R2
7 8 9 A M3 F2 H R3
∗/T
• E: Store digit
• CHK: a. Check dialing number
b. Memory check (except mercury)
• A: Indirect repertory memory dialing function key
• R/P: Redial and pause function key
• ∗/T: ∗ in tone mode and P→T in pulse mode
• M1 to M3: One touch memory
0 # R/P
∗SAVE
W91550DN SERIES
F3 R R4
• *SAVE: Save function key, If the S/
pin = VDD
MER, Mercury code dialing, If the S/M pin = VSS
• TIM: Timer display key
• F1, F2, F3: Flash keys
• MUTE: Secrecy control key
• H: Hold function key
• R: One-key redial function
Notes:
D1, ..., Dn, D1', ..., Dn': 0, ..., 9, ∗/T, #
Mn: Direct memory location M1, M2, M3
Lm, Ln, Lp: Indirect memory location 0, ..., 9
Normal Dialing
OFF HOOK (or ON HOOK &
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.
3. The dialing mark (the dot of digit_1) will be lit until dialing is finished.
), D1 , D2 , ..., Dn
Redialing
1. OFF HOOK (or ON HOOK &
), D1 , D2 , ..., Dn Busy
Come ON HOOK , OFF HOOK (or ON HOOK &
- 7 - Revision A3
), R/P
Publication Release Date: November 1997
Page 8
W91550DN SERIES
HFI
¡õ
DP
HFI
¡õ
HFI
¡õ
HFI
¡õ
HFI
¡õ
a. The R/P key can execute the redial function only as the first key-in after off-hook; otherwise,
it will invoke the pause function.
b. The redial memory content will be D1, D2, D3, ..., Dn.
c. If redialing length oversteps 32 digits, the redialing function will be inhibited.
2. OFF HOOK (or ON HOOK &
a. The one key redialing function timing diagram is shown in Figure 3.
b. If the dialing of D1 to Dn is finished, pressing the R key will cause the pulse output pin
to go low for 2.2 seconds break time and 0.6 seconds pause time will be added
automatically.
c. If the pulses of the dialed digits D1 to Dn have not finished, R will be ignored.
), D1 , D2 , ..., Dn , Busy, R
Number Store
1. OFF HOOK , (or ON HOOK
same as one time), Mn (or A , Ln , or 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
(could be skipped), Mn , ON HOOK
OFF HOOK (or ON HOOK
A (could be skipped), Ln , ON HOOK
a. D1, D2, ..., Dn will be stored in memory location Mn (or Ln) but will not be dialed out.
&
&
&
), D1 , D2 , ..., Dn , E (many times
), E , D1 , D2 , ..., Dn , E
), E , D1 , D2 , ..., Dn , E
b. 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.
c. 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.
3. OFF HOOK ,
The redial content will be copied to memory location Mn (or Ln).
E , Mn
, (or A , Ln , or Ln )
Save
If the S/M pin = VDD, the save function is selected:
1. OFF HOOK , (or ON HOOK
E , D1' , D2' , ..., Dn' , SAVE
&
), D1 , D2 , ..., Dn , CONVERSATION,
- 8 -
Page 9
W91550DN SERIES
HFI
¡õ
HFI
¡õ
HFI
¡õ
HFI
¡õ
HFI
¡õ
HFI
¡õ
HFI
¡õ
HFI
¡õ
D1', D2', ..., Dn' will be stored in save memory but will not be dialed out.
2. OFF HOOK , (or ON HOOK
a. D1, D2, ..., Dn will be dialed out before the SAVE key is pressed.
b. The D1, D2, ..., Dn will be copied to save memory when the SAVE key is pressed after
D1, D2, ..., Dn dialing is finished.
3. OFF HOOK , (or ON HOOK
a. D1, D2, ..., Dn will be dialed out when the SAVE key is pressed.
b. All of the sequences will be displayed on the LCD.
&
&
), D1 , D2 , ..., Dn , SAVE
), SAVE
Mercury
If the S/M pin = VSS, the mercury function is selected:
1. OFF HOOK , (or ON HOOK
E , D1' , D2' , ..., Dn' , MER
D1', D2', ..., Dn' will be stored in mercury memory but will not be dialed out.
2. MERCURY memory content = D1', D2', ..., Dn'
a. OFF HOOK , (or ON HOOK
D1, D2, ..., Dn will be dialed out but the MER's contents can't be dialed out.
&
&
), D1 , D2 , ..., Dn , CONVERSATION,
), D1 , D2 , ..., Dn , MER
b. OFF HOOK , (or ON HOOK
D1', D2', ..., Dn' will be dialed out, and the mercury mark (the dot of digit_10) will be blinking during
mercury dialing. Detailed timing diagram is shown in Figure 5.
c. 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 state or first priority flash operation (except W91550DN-1's F3).
d. With the exception of the mercury mark, the contents of mercury memory will not be displayed
on the LCD.
e. Mercury memory cannot be checked in memory check mode.
&
), MER
Repertory Dialing
1. One-touch direct repertory dialing.
a. OFF HOOK , (or ON HOOK
b. OFF HOOK , (or ON HOOK
2. Two-touch indirect repertory dialing.
OFF HOOK , (or ON HOOK
&
&
&
), Mn
), SAVE (or MER )
), A , Ln
Publication Release Date: November 1997
- 9 - Revision A3
Page 10
Access Pause
HFI
¡õ
HFI
¡õ
HFI
¡õ
HFI
¡õ
W91550DN SERIES
OFF HOOK (or ON HOOK &
1. The pause function can be stored in memory.
2. The pause function is executed in normal dialing, redialing, or memory dialing.
3. The pause function timing diagram is shown in Figure 6.
), D1 , D2 , R/P , D3 , ..., Dn
Pulse-to-tone (*/T)
OFF HOOK (or ON HOOK &
D2 , ..., Dn'
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) (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 pulse-to-tone function timing diagram is shown in Figure 7.
), D1 , D2 , ..., Dn , */T , D1' ,
TIM
OFF HOOK , (or ON HOOK
or Repertory dialing ), CONVERSATION, TIM
1. If no key is pressed after dialing and ATS pin = 1, the LCD will automatically display counting time
after 6 seconds.
2. The timer will count after the TIM key is pressed from 00:00.
&
), D1 , D2 , ..., Dn (or Redialing
Flash (F = F1, F2, F3)
OFF HOOK , (or ON HOOK
1. The dialer will execute flash break times of 600 mS (F1), 300 mS (F2), or 98 mS (F3) and a pause
time of 1.2 sec. before the next digit is dialed out.
2. The flash key cannot be stored as a digit in memory and it has the first priority among keyboard
functions (except for the F3 key of W91550DN-1).
3. The system will return to the initial state after pause time is finished.
4. Keyboard functions are inhibited during flash and when flash break is being executed.
5. The flash timing diagram is shown in Figure 8 and 12.
&
), F
- 10 -
Page 11
Mute
HFI
¡õ
HFI
¡õ
W91550DN SERIES
OFF HOOK , (or ON HOOK
The MUTE is switched on and off by the mute key. The function timing diagram is shown in Figure 9.
&
), MUTE
Hold Key
OFF HOOK , (or ON HOOK
1. The HOLD function is switched on and off by the hold key. When the hold function is toggled on,
the hold mark (dot of digit_6) will be lit. The function timing diagram is shown in Figure 10(a, b).
2. The HOLD key will be ignored during dialing.
&
), H
Cascaded and Mixed Dialing
Cascaded Dialing
1. Definition of cascaded dialing:
In cascaded dialing, a new sequence may be pressed before the previous sequence 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 +...
2. Normal dialing, redialing, or repertory dialing as represented by each rectangle above is treated as
one sequence.
3. At most 32 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 valid only as the first key-in, however.
5. If ON HOOK , OFF HOOK
in the examples above will be dialed out only if the total number of digits does not exceed 32. If the
sequence exceeds 32 digits then redialing is inhibited.
,
R is entered, then the cascaded dialing sequence described
Mixed Dialing
1. Definition of mixed dialing:
The examples of cascaded dialing given above 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.
Publication Release Date: November 1997
- 11 - Revision A3
Page 12
W91550DN SERIES
HKS
4. If ON HOOK , OFF HOOK
the above examples will be dialed out only if the total number of digits does not exceed 32. If the
total exceeds 32 digits, then redialing is inhibited.
,
R is entered, then the mixed dialing sequence described in
Combining 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
digits does not exceed 32. Otherwise, the redialing is inhibited.
3. If there had been n cascaded sequences with a total of 30 digits dialed, then for the (n+1)th
cascaded sequence, one 2-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 32 digits of cascaded dialing have been completed, mixed dialing can be added.
,
R , then redialing will be executed only if the total number of
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL RATING UNIT
DC Supply Voltage
Input/output Voltage VIL VSS -0.3 V
Power Dissipation PD 120 mW
Operating Temperature TOPR -20 to 70
Storage Temperature TSTG -55 to 125
VDD−VSS
VIH VDD +0.3 V
VOL VSS -0.3 V
VOH VDD +0.3 V
-0.3 to +7.0 V
°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 = 3V, FOSC. = 3.58 MHz, TA = 25° C, all output unloaded )
PARAMETER SYM. CONDITIONS MIN. TYP. MAX. UNIT
Operating Voltage VDD - 2.0 - 5.5 V
Operating Current IOP Tone, Unloaded - 0.6 1.0 mA
Pulse, Unloaded - 0.4 0.8
Memory Retention Current IMR
= VDD, VDD = 1.0V
- 12 -
- - 0.5
µA
Page 13
W91550DN SERIES
DP
DP
MUTE
KMUTE
TEST
HFI
HKS
HKS
DC Characteristics, continued
PARAMETER SYM. CONDITIONS MIN. TYP. MAX. UNIT
DTMF Output Voltage VTO
Pre-emphasis
DTMF Distortion THD
DTMF Output DC Level VTDC
DTMF Output Sink Current ITL VTO = 0.5V 0.2 - - mA
Output Drive Current
Output Sink Current
Common Output Voltage VCH - 2.8 3.0 3.2 V
Common Output Current ICH VCOM = 3.0V,
Segment Output Voltage VSH - 2.8 3.0 3.2 V
Segment Output Current ISH VSEG = 3.0V,
RMS Voltage Across VON - 2.0 2.12 - Vrms
a Segment VOFF - - 1.225 1.35
Average DC Offset Volatge VDC - - - 100 mV
T/P
Current
HPM MUTE Output Sink
Current
Current
Control Input Pull-up/Down
Resistor
Keypad Input Drive Current IKD VI = 0V 30 - Keypad Input Sink Current IKS VI = 2.5V 200 400 Keypad Resistance RK - - - 5.0
Output Sink
Output Sink
Input Pull-up Resistor
IPH VPO = 2.0V 0.5 - - mA
IPL VPO = 0.5V 0.5 - - mA
VCL - - 0 0.2
ICL VCOM = 0.0V, VO = 0.4V 20 - -
VSL - - 0 0.2
ISL VSEG = 0.0V, VO = 0.4V 5 - -
ITML VTPM = 0.5V 0.5 - - mA
IHML VHPM = 0.5V 0.5 - - mA
IKML VKM = 0.5V 0.5 - - mA
RCIP
RHK
Row group, RL = 5 KΩ
Col/Row, VDD = 2.0−5.5V
RL = 5 KΩ,
VDD = 2.0−5.5V
RL = 5 KΩ,
VDD = 2.0−5.5V
VO = VCOM -0.4V
VO = SEG -0.4V
S/M, B/M,
MODE,
, ATS,
130 150 170 mVrms
1 2 3 dB
- -30 -23 dB
1.0 - 3.0 V
-20 - -
-5 - -
100
- -
- 300 500
µA
µA
KΩ
KΩ
µA
µA
KΩ
Publication Release Date: November 1997
- 13 - Revision A3
Page 14
W91550DN SERIES
AC CHARACTERISTICS
PARAMETER SYM. CONDITIONS MIN. TYP. MAX. UNIT
Key-in Debounce TKID - - 20 - mS
Key Release Debounce TKRD - - 20 - mS
Off-hook Delay TOFD
First Key-in Delay TFKD Lock only - 300 - mS
On-hook Debounce TOHD Normal mode - 250 - mS
Pulse Mute Delay TMD B/M = VDD - 40 - mS
Pre-digit-pause (10 ppS) TPDP B/M = VDD - 40 - mS
Interdigit Pause (Auto dialing) TIDP 10 ppS - 800 - mS
Make/Break Ratio M:B B/M = VDD - 40:60 - %
Tone Output Duration TTD Auto dialing - 87 - mS
Intertone Pause TITP Auto dialing - 87 - mS
Flash Break Time TFB F2 - 300 - mS
Flash Pause Time TFP F1, F2, F3 - 1.2 - S
Pause Time TP (default 3.6S) - 3.6 - S
One-key Redialing Break Time TRB - - 2.2 - S
One-key Redialing Pause Time TRP - - 0.6 - S
LCD Frame Frequency FLCD - - 50 - Hz
Lock only - 300 - mS
Lock mode - 20 -
B/M = VSS - 33.3 -
B/M = VSS - 33.3 -
B/M = VSS - 33:67 -
F1 - 600 -
F3 - 98 -
Mask option - 2.0 -
- 4.0 -
Notes:
1. Crystal parameters suggested for proper operation are RS < 100 Ω, 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.
- 14 -
Page 15
LCD DISPLAY FORMAT
HFI
A. Normal Dialing
W91550DN SERIES
Blinking
Note: In tone mode the tone mark (the dot of digit_9) will be lit.
B. Redialing, Save Dialing, One Touch Dialing
Off hook (or press "
tone mode was selected).
Dial "0123456789"
and "56".
" switch) (Here
C. Mercury Dialing
Blinking
Press the "R/P" or "R" or "SAVE" or "Mn"
key. (Redial or SAVE or Mn =
"1234567")
Press the "MER" key, the mercury mark
(the dot of digit_10) will be blinking.
Publication Release Date: November 1997
- 15 - Revision A3
Page 16
D. Abbreviated Auto Dialing
HFI
HFI
E. Memory Check
a.
W91550DN SERIES
Press the "A" key (L5 = "770066") in
handset mode.
Press the "5" key.
Blinking
Note: In handfree mode the handfree mark (the dot of digit_7) will be lit.
b.
Redial content
Off hook or press the "
which case the handfree mode is
selected, and M3 = "035P770066").
Press the "CHK" key.
Press the "M3" key.
Off hook (or press "
"R/P" or "R".
(M1 = "1234567890123456")
" switch (In
" switch) press
Press the "CHK" key.
- 16 -
Page 17
Continued
HFI
HFI
F. Timer Function
a.
W91550DN SERIES
"M1" key.
(Display 1−10 digits)
Blinking
"Any key" except "F1", "F2" and "F3"
keys.
(Display 11−16 digits)
b.
Off hook (or press "
press the "TIM" key.
(Display last calling time)
"774926"
After dialing "774926", press the "TIM"
key.
(Timer will start counting up)
Press the "TIM" key (Timer will stop)
" switch), then
Off hook (or press the "
"774926"
Publication Release Date: November 1997
- 17 - Revision A3
" key) dial
Page 18
Continued
W91550DN SERIES
After dialing "774926" press the "TIM"
key.
(Timer will start counting up)
Press the "CHK" key.
(M3 = "035P770066")
Press the "M3" key.
The system will return to timer mode
after 6 seconds.
(Timer counts up continuously)
Blinking
Press the "F1", "F2" or "F3" key.
If the flash function is selected, the timer
will stop and the LCD will display a
blinking cursor.
- 18 -
Page 19
LCD PATTERN FOR DATA
W91550DN SERIES
1
* # P T P
2 3 4
Tone/Icon9 Flash/Icon5
Handfree/Icon7
Timer/Icon8
5 6 7 8 9
CHECK
E
Hold/Icon6Mercury/Icon10
A F
Pause/Icon3
Mute/Icon4
0
L
Dailing/Icon1
In use/Icon2
Notes:
1. The icon1 to icon10 are controlled by function operation.
2. The "In use/Icon2" always blinks after power on.
Publication Release Date: November 1997
- 19 - Revision A3
Page 20
LCD PANEL PATTERN
1
1
1
0
0
C
B
9
9
0
A
89
8
AC B A
C B
W91550DN SERIES
C
C
C
O
O
4
66 677 78
5
A
C
B
A
B
C
4
4
55
BACB
C
3
A
B
C
2
22
33
A
C B
1C1
A
O
1
M
M
A
B
(SEG)
M
123
C
C
C
O
O
O
M
M
M
(COM)
123
- 20 -
Page 21
TIMING WAVEFORMS
W91550DN SERIES
HKS
KEY IN
DP
T/P MUTE
< 600mS
< 300mS
3
T
M
B
KID
2
BM
T
T
PDP
IDP
T
MD
T
IDP
3
T
KID
HPM MUTE
DTMF
OSC.
Low
OSCILLATION
Figure 1(a). Normal Dialing Timing Diagram (Pulse Mode without Lock Function)
HKS
KEY IN
DP
T/P MUTE
< 600mS
T
OFD
< 300mS
3
2
T
KID
M
B
T
T
FKD
T
IDP
MD
3
T
KID
T
T
KRD
KRD
T
IDP
T
IDP
HPM MUTE
DTMF
OSC.
Low
OSCILLATION
Figure 1(b). Normal Dialing Timing Diagram (Pulse Mode with Lock Function)
Publication Release Date: November 1997
- 21 - Revision A3
Page 22
Timing Waveforms, continued
W91550DN SERIES
HKS
KEY IN
DP
T/P MUTE
HPM MUTE
DTMF
OSC.
HKS
< 600mS
R/P
T
KID
MB
M B
T
IDP
T
PDP
T
MD
M B
T
IDP
T
IDP
Low
OSCILLATION
Figure 1(c). Auto Dialing Timing Diagram (Pulse Mode without Lock Function)
< 600mS
KEY IN
DP
T/P MUTE
HPM MUTE
DTMF
OSC.
R/P
T
T
OFD
KID
MB
T
PDP
T
FKD
M B
T
IDP
T
MD
M B
T
IDP
Low
OSCILLATION
Figure 1(d). Auto Dialing Timing Diagram (Pulse Mode with Lock Function)
- 22 -
T
IDP
Page 23
Timing Waveforms, continued
W91550DN SERIES
HKS
< 600mS
< 300mS
KEY IN
T
KRD
T
ITP
T
KID
DTMF
T
KID
T
ITP
T
KRD
T
TD
T/P MUTE
HPM MUTE
DP
OSC.
Low
High
OSCILLATION
Figure 2(a). Normal Dialing Timing Diagram (Tone Mode without Lock Function)
HKS
KEY IN
< 600mS
< 300mS
T
KRD
T
KRD
T
KID
T
KRD
T
ITP
T
KRD
DTMF
T/P MUTE
HPM MUTE
DP
OSC.
T
OFD
T
TD
T
FKD
T
ITP
Low
High
OSCILLATION
Figure 2(b). Normal Dialing Timing Diagram (Tone Mode with Lock Function)
Publication Release Date: November 1997
- 23 - Revision A3
T
ITP
Page 24
Timing Waveforms, continued
W91550DN SERIES
HKS
KEY IN
DTMF
< 600mS
R/P
T
KID
T
ITP
T
TD
T/P MUTE
HPM MUTE
DP
OSC.
T
OHD
OSCILLATION
Figure 2(c). Auto Dialing Timing Diagram (Tone Mode without Lock Function)
HKS
< 600mS
Low
High
T
ITP
KEY IN
DTMF
T/P MUTE
HPM MUTE
DP
OSC.
R/P
T
ITP
T
TD
300mS
T
OFD
T
T
OHD
OFD
T
FKD
Low
High
OSCILLATION
Figure 2(d). Auto Dialing Timing Diagram (Tone Mode with Lock Function)
- 24 -
T
ITP
Page 25
Timing Waveforms, continued
W91550DN SERIES
HKS
KEY IN
DP
T/P MUTE
HPM MUTE
DTMF
OSC.
HKS
HFI
Low
R
T
KID
T
RB
T
PDP
M B
T
RP
MB
T
IDP
T
MD
Low
OSCILLATION
Figure 3. One-key Redial Timing Diagram
T
IDP
HFO
T/P MUTE
HPM MUTE
DP
OSC.
High
Low
T
OHD
OSC.
OSC.
Figure 4. Handfree Timing Diagram
- 25 - Revision A3
T
OHD
OSC.
Publication Release Date: November 1997
Page 26
Timing Waveforms, continued
HKS
W91550DN SERIES
KEY IN
DP
T/P MUTE
HPM MUTE
DTMF
OSC.
HKS
KEY IN
DP
T/P MUTE
MCR
T
KID
M
B
T
PDP
M
B
T
OSCILLATION
Figure 5. Mercury Function Timing Diagram
3
M
B
2
T
KID
T
PDP
R/P
T
IDP
T
MD
3
T
B
BM
T
IDP
IDP
T
P
T
ITP
T
IDP
T
P
HPM MUTE
DTMF
OSC.
Low
OSCILLATION
Figure 6. Pause Function Timing Diagram (Pulse Mode)
- 26 -
Page 27
Timing Waveforms, continued
HKS
W91550DN SERIES
KEY IN
DP
T/P MUTE
HPM MUTE
DTMF
OSC.
KEY IN
T/P MUTE
HKS
DP
4
M
B
2
T
KID
T
PDP
*/T
M
IDP
B
T
Figure 7. Pulse-to-tone Timing Diagram
Low
F
T
KID
F
F
T
8
T
IDP
OSCILLATION
2 3
FB
T
FP
T
P
T
ITP
T
KID
B
M
T
IDP
HPM MUTE
DTMF
OSC.
Low
OSCILLATION
Figure 8. First Priority Flash Timing Diagram
Publication Release Date: November 1997
- 27 - Revision A3
Page 28
Timing Waveforms, continued
HKS
KEY IN
DP
T/P MUTE
HPM MUTE
KMUTE
W91550DN SERIES
MUTE
4
M
B
2
T
KID
T
IDP
T
PDP
2
T
KID
M
B
T
IDP
MUTE
T
KID
M
B
T
IDP
OSC.
HOLD KEY
T/P MUTE
HPM MUTE
CHIP ENBLE
HKS
HFI
HFO
OFF HOOK
OSCILLATION
Figure 9. Mute Timing Diagram
ON HOOK
High
Low
Figure 10(a). Hold Timing Diagram
Note: The HOLD KEY cannot be enabled when the chip is disabled.
- 28 -
Page 29
Timing Waveforms, continued
W91550DN SERIES
HKS
HFI
HOLD KEY
HFO
T/P MUTE
HPM MUTE
CHIP ENBLE
OFF HOOK
High
Figure 10(b). Hold 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 activated inputs will be ignored.
HKS
ON HOOK
HFI
HOLD KEY
HFO
T/P MUTE
HPM MUTE
CHIP ENBLE
High
Figure 10(c). Hold Timing Diagram
Note: Changing the state of the HKS signal from high to low will initialize the HFO and HPM MUTE signals.
Publication Release Date: November 1997
- 29 - Revision A3
Page 30
Timing Waveforms, continued
HKS
KEY IN
DP B
T/P MUTE
HPM MUTE
DTMF
4
T
< 300 mS
KID
M
B
W91550DN SERIES
2
M
T
IDP
T
PDP
T
FKD
T
IDP
OSC.
HKS
KEY IN
DP
T/P MUTE
HPM MUTE
DTMF
OSC.
OSCILLATION
Figure 11. First Key-in Delay Timing Diagram
Low
F3 F3
T
KID
T
FP
2
T
FB
T
OSCILLATION
3
B
M
FP
Low
B
M
T
IDP
T
IDP
Figure 12. Flash Timing Diagram for the F3 Key of W91550DN-1
- 30 -
Page 31
BONDING PAD DIAGRAM
11
KMUTE
M
Notes:
1. The substrate must be connected to VSS.
2. The chip size is 3010.00 × 3060.00 µm
W91550DN SERIES
495051
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
2
61
63
(0, 0)
22
2120
26
2423
2827
25
57
59
58
60
62
64
52
545556
53
48
47
46
45
44
43
42
41
40
39
38
37
36
35
29
33
31
32
30
34
Unit: µm
PAD
NO.
1
PAD
NAME
X Y PAD
NO.
PAD
NAME
X Y
-1234.60 1369.20 17 5C -1359.60 -1127.00
2 COM3 -1374.60 1322.70 18 6A -1359.60 -1281.50
3 1A -1359.60 1052.80 19 6B -1117.60 -1384.60
4 1B -1359.60 905.20 20 6C -970.00 -1384.60
5 1C -1359.60 741.40 21 7A -811.00 -1384.60
6 2A -1359.60 593.80 22 7B -658.60 -1384.60
7 2B -1359.60 430.00 23 7C -494.80 -1384.60
8 2C -1359.60 282.40 24 8A -342.40 -1384.60
9 3A -1359.60 118.60 25 8B -183.40 -1384.60
10 3B -1359.60 -29.00 26
S/
-28.90 -1384.60
11 3C -1359.60 -192.80 27 8C 128. 00 -1384.60
12 4A -1359.60 -340.40 28 9A 280.40 -1384.60
13 4B -1359.60 -504.20 29 9B 439.40 -1384.60
14 4C -1359.60 -651.80 30 9C 587.00 -1384.60
15 5A -1359.60 -810.80 31 10A 746.00 -1384.60
16 5B -1359.60 -963.20 32 10B 898.40 -1384.60
Publication Release Date: November 1997
- 31 - Revision A3
Page 32
Continued
TEST
XT
MUTE
HKS
HFI
DP
LOCK
W91550DN SERIES
PAD
NO.
PAD
NAME
X Y PAD
NO.
PAD
NAME
X Y
33 10C 1062.20 -1384.60 49 C6 1333.60 1338.10
34 VSS 1346.40 -1375.50 50 R1 1034.10 1337.60
35 DTMF 1350.30 -1127.00 51 R2 878.10 1337.60
36 B/M 1333.80 -819.50 52 R3 705.10 1337.60
37
1328.80 -659.90 53 R4 549.10 1337.60
38 VDD 1328.70 -519.90 54 XT 363.00 1344.00
39 HPM MUTE 1340.90 -373.60 55
40
T/P
1340.90 -215.40 56
41 ATS 1340.90 -79.30 57
42
1340.90 99.70 58 HFO -202.50 1369.20
217.80 1354.20
72.50 1352.90
-67.50 1352.90
43 MODE 1340.90 270.70 59 VLCD -337.50 1369.20
44 C1 1333.60 524.10 60 CP -447.50 1369.20
45 C2 1333.60 680.10 61 CN -617.50 1369.20
46 C3 1333.60 853.10 62 COM1 -757.50 1369.20
47 C4 1333.60 1009.10 63 COM2 -908.20 1369.20
48 C5 1333.60 1182.10 64
-1052.60 1369.20
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
Note: All data and specifications are subject to change without notice.
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
- 32 -
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
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