W91590 Datasheet, PDF (12/20 Pages) Winbond – 24-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE, HOLD AND LOCK FUNCTIONS

W91590 SERIES
MERCURY DIALING
1. Up to 32 digits may be stored.
2. Mercury dialing is activated only as the first key-in after off-hook or handfree dialing is activated.
3. The timing diagram for the mercury memory function is given below.
KEY IN
MER
DP
T/P MUTE
TP
TIDP
DTMF
HPM MUTE
OSC.
OSCILLATION
Mercury Function Timing Diagram
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATING
UNIT
DC Supply Voltage
VDD−VSS
-0.3 to +7.0
V
Input/Output Voltage
VIL
VSS -0.3
V
VIH
VDD +0.3
V
VOL
VSS -0.3
V
VOH
VDD +0.3
V
Power Dissipation
PD
120
mW
Operating Temperature
TOPR
-20 to +70
°C
Storage Temprature
TSTG
-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.
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