W78C51D 데이터 시트보기 (PDF) - Winbond
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W78C51D Datasheet PDF : 18 Pages
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Preliminary W78C51D
DC Characteristics, continued
PARAMETER
Input High Voltage
P1, P2, P3, P4
Input High Voltage
RST
Input High Voltage
XTAL1[*4]
Output Low Voltage
P1, P2, P3, P4
Output Low Voltage
P0, ALE, PSEN [*4]
Sink Current
P1, P2, P3, P4
Sink Current
P0, ALE, PSEN
Output High Voltage
P1, P2, P3, P4
Output High Voltage
P0, ALE, PSEN [*4]
Source Current
P1, P2, P3, P4
Source Current
P0, ALE, PSEN
SYM.
Input
VIH1
SPECIFICATION
MIN. MAX. UNIT
TEST CONDITIONS
2.4 VDD +0.2
V VDD = 5.5V
VIH2
3.5 VDD +0.2
V VDD = 5.5V
VIH3
3.5 VDD +0.2
V VDD = 5.5V
Output
VOL1
-
VOL2
-
0.45
0.45
ISK1
4
10
ISK2
8
16
VOH1
2.4
-
VOH2
2.4
-
ISR1
-100
ISR2
-8
-250
-14
V VDD = 4.5V
IOL = +2 mA
V VDD = 4.5V
IOL = +4 mA
mA VDD = 4.5V
Vin = 0.45V
mA VDD = 4.5V
VIN = 0.45V
V VDD = 4.5V
IOH = -100 µA
V VDD = 4.5V
IOH = -400 µA
µA VDD = 4.5V
VIN = 2.4V
mA VDD = 4.5V
VIN = 2.4V
Notes:
*1. RST pin has an internal pull-down.
*2. Pins of P1 and P3 can source a transition current when they are being externally driven from 1 to 0.
*3. RST is a Schmitt trigger input and XTAL1 is a CMOS input.
*4. P0, P2, ALE and PSEN are tested in the external access mode.
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