W91580 Datasheet, PDF (11/19 Pages) Winbond – 24-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND HOLD FUNCTIONS

W91580 SERIES
MERCURY DIALING
1. Up to 32 digits may be stored.
2. Mercury dialing is activate only as the first key-in after off-hook or when handfree dialing is
activated.
3. The timing diagram for the mercury memory function is shown below.
KEY IN
MER
DP
T/P MUTE
TP
TIDP
DTMF
HPM MUTE
OSC.
OSCILLATION
Mercury Function Timing Diagram
ABSOLUTE MAXIMUM RATINGS
PARAMETER
DC Supply Voltage
Input/Output Voltage
Power Dissipation
Operating Temperature
Storage Temprature
SYMBOL
VDD−VSS
VIL
VIH
VOL
VOH
PD
TOPR
TSTG
RATING
-0.3 to +7.0
VSS -0.3
VDD +0.3
VSS -0.3
VDD +0.3
120
-20 to +70
-55 to +125
UNIT
V
V
V
V
V
mW
°C
°C
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the
device.
- 11 -
Publication Release Date: Auguest 1995
Revision A3