W78E58B_06 Datasheet, PDF (22/36 Pages) Winbond – 8-BIT MICROCONTROLLER

W78E58B/W78E058B
D.C. Characteristics, continued
PARAMETER
Input Low Voltage
XTAL1^[*4]
Input High Voltage
P0, P1, P2, P3, P4, EA
Input High Voltage
RST
Input High Voltage
XTAL1^[*4]
Output Low Voltage
P1, P2, P3, P4
Output Low Voltage
P0, ALE, PSEN ^[*3]
SYM.
V IL3
SPECIFICATION
MIN.
MAX.
UNIT
0
0.8
V
VIH1
2.4
VDD +0.2
V
VIH2
3.5
VDD +0.2
V
VIH3
3.5
VDD +0.2
V
VOL1
-
0.45
V
VOL2
-
0.45
V
TEST CONDITIONS
VDD = 4.5V
VDD = 5.5V
VDD = 5.5V
VDD = 5.5V
VDD = 4.5V
IOL = +2 mA
VDD = 4.5V
IOL = +4 mA
Sink current
P1, P3, P4
Sink current
P0, P2, ALE, PSEN
Output High Voltage
P1, P2, P3, P4
Output High Voltage
P0, ALE, PSEN ^[*3]
Isk1
4
Isk2
10
VOH1
2.4
VOH2
2.4
12
mA
20
mA
-
V
-
V
VDD = 4.5V
VIN = 0.45V
VDD = 4.5V
VIN = 0.45V
VDD = 4.5V
IOH = -100 µA
VDD = 4.5V
IOH = -400 µA
Source Current
P1, P2, P3, P4
Source Current
P0, P2, ALE, PSEN
Isr1 -120
-250
µA
Isr2
-8
-20
mA
VDD = 4.5V
VIN = 2.4V
VDD = 4.5V
VIN = 2.4V
Notes:
*1. RST pin is a Schmitt trigger input.
*2. P0, ALE and PSEN are tested in the external access mode.
*3. XTAL1 is a CMOS input.
*4. Pins of P1, P2, P3, P4 can source a transition current when they are being externally driven from 1 to 0.
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