W91550DN SERIES
- 12 -
4. If
ON HOOK
,
OFF HOOK
,
R
is entered, then the mixed dialing sequence described in
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.
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
,
R
, then redialing will be executed only if the total number of
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.
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 125
°
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
= 3V,
F
OSC
.
= 3.58
MHz
,
T
A
= 25
°
C, all
output
unloaded
)
PARAMETER
SYM.
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Operating Voltage
V
DD
-
2.0
-
5.5
V
Operating Current
I
OP
Tone, Unloaded
-
0.6
1.0
mA
Pulse, Unloaded
-
0.4
0.8
Memory Retention Current
I
MR
HKS
= V
DD
, V
DD
= 1.0V
-
-
0.5
µ
A
