W91550 WINBOND [Winbond], W91550 Datasheet - Page 12

• Manufacturer Part Number: W91550
• Description: 13-MEMORY TONE/PULSE DIALER WITH LCD AND LOCK FUNCTION
• Manufacturer: WINBOND [Winbond]

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:
3. If there had been n cascaded sequences with a total of 30 digits dialed, then for the (n+1)th
4. After a total of 32 digits of cascaded dialing have been completed, mixed dialing can be added.
ABSOLUTE MAXIMUM RATINGS
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the
DC CHARACTERISTICS
( V
4. If
Operating Voltage
Operating Current
Memory Retention Current
DC Supply Voltage
Input/output Voltage
Power Dissipation
Operating Temperature
Storage Temperature
DD
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.
digits does not exceed 32. Otherwise, the redialing is inhibited.
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.
ON HOOK
device.
V
SS
ON HOOK
= 3V, F
PARAMETER
PARAMETER
OSC
.
,
= 3.58 MHz
,
OFF HOOK
OFF HOOK
,
T
A
= 25 C, all output unloaded )
SYM.
V
I
I
OP
MR
DD
,
SYMBOL
V
,
DD
R
T
T
V
V
V
V
OPR
P
STG
R is entered, then the mixed dialing sequence described in
OH
OL
Tone, Unloaded
Pulse, Unloaded
HKS = V
IL
IH
D
V
, then redialing will be executed only if the total number of
SS
CONDITIONS
- 12 -
DD
, V
-
DD
-0.3 to +7.0
-55 to 125
= 1.0V
V
-20 to 70
RATING
V
V
V
DD
DD
SS
SS
120
+0.3
-0.3
-0.3
+0.3
W91550DN SERIES
MIN.
2.0
-
-
-
TYP.
0.6
0.4
-
-
UNIT
mW
V
V
V
V
V
C
C
MAX.
5.5
1.0
0.8
0.5
UNIT
mA
V
A