W91473 Datasheet, PDF (13/20 Pages) Winbond – 14-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND LOCK FUNCTION

W91473 SERIES
DC CHARACTERISTICS
(VDD−VSS = 2.5V, Fosc. = 3.58 MHz, Ta = 25° C, all outputs unloaded)
PARAMETER
SYMBOL
CONDITIONS
Operating Voltage
VDD
Operating Current
IOP
Tone
Pulse
Standby Current
ISR
HKS = 0, No load & No
key entry
Memory Retention Current
IMR
HKS = 1, VDD = 1.0V
DTMF Output Voltage
VTO
Row group, RL = 5 KΩ
Pre-emphasis
-
Col/Row,
VDD = 2.0 to 5.5V
DTMF Distortion
THD
RL= 5 KΩ,
VDD = 2.0 to 5.5V
DTMF Output DC Level
VTDC
RL = 5 KΩ,
VDD = 2.0 to 5.5V
DTMF Output Sink Current
ITL
VTO = 0.5V
DP Output Sink Current
IPL
VPO = 0.5V
T/P MTUE Output Sink
Current
HPM MUTE Output Sink
Current
HPM MUTE Output drive
Current
HKS I/P Pull-high Resistor
Key Tone Output Current
HFO Drive/Sink Current
Keypad Input Drive Current
Keypad Input Sink Current
Keypad Resistance
IMI
VMO = 0.5V
IHPMI VTO = 0.5V
IHPMH
RKH
IKTH
IKTL
IHFH
IHFL
IKD
IKS
VTH = 2.0V
VKTH = 2.0V
VKTH = 0.5V
VHFH = 2.0V
VHFL = 0.5
VI = 0V
VI = 2.5V
MIN.
2.0
-
-
-
TYP.
-
0.3
0.15
-
MAX.
5.5
0.5
0.3
15
UNIT
V
mA
µA
-
-
130 150
1
2
0.2
µA
170 VrmS
3
dB
-
-30
-23
dB
1.0
-
3.0
V
0.2
-
0.5
-
0.5
-
-
mA
-
mA
-
mA
0.5
-
-
mA
0.5
-
-
mA
-
300
-
KΩ
0.5
-
0.5
-
-
mA
-
0.5
-
0.5
-
-
mA
-
30
-
-
µA
200 400
-
µA
-
-
5.0
KΩ
- 13 -
Publication Release Date: February 1995
Revision A3