W91621 查看數據表（PDF） - Winbond
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W91621 Datasheet PDF : 16 Pages
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W91620 SERIES
DC CHARACTERISTICS
(FOSC. = 3.58 MHz, TA = 25° C, all outputs unloaded)
PARAMETER
SYM.
CONDITIONS
Operating Voltage
VDD
-
Operating Current
IOP Tone, VDD = 2.5V
Pulse, VDD = 2.5V
Standby Current
ISB 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
VDD = 2.5V
DP /C5 Output Sink
Current
IPL VPO = 0.5V
VDD = 2.5V
P MUTE & T/P MUTE
Output Drive Current
IMH VMO = 2.0V
VDD = 2.5V
P MUTE & T/P MUTE
Output Sink Current
IML VMO = 0.5V, VDD =
2.5V
Keypad Input Drive
Current
IKD VI = 0V, VDD = 2.5V
Keypad Input Sink
Current
IKS VI = 2.5V, VDD = 2.5V
Keypad Resistance
-
HKS I/P Pull High
-
Resistance
Input Voltage Low Level
VIL Pins 1, 2, 3, 4, 10, 13,
Input Voltage High Level VIH 15, 16, 17, 18
MIN.
2.0
-
-
-
TYP.
-
0.30
0.15
-
MAX.
5.5
0.50
0.30
15
UNIT
V
mA
µA
-
-
0.2
µA
130 150 170 mVrms
1
2
3
dB
-
-30
-23
dB
1.0
-
3.0
V
0.2
-
-
mA
0.5
-
-
mA
0.2
-
-
mA
0.5
-
-
mA
4
-
-
µA
200 400
-
µA
-
-
5.0
KΩ
-
300
-
KΩ
0
-
0.2
V
VDD
0.8
-
VDD
V
VDD
- 11 -
Publication Release Date: December 1994
Revision A3
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