W79E201 Datasheet, PDF (70/87 Pages) Winbond – 8-BIT MICROCONTROLLER

W79E201
DC Characteristics, continued
PARAMETER
SYMBOL
SPECIFICATION
MIN.
MAX.
UNIT
TEST CONDITIONS
Input Low Voltage
XTAL1^[*3]
V_IL3
0
0.8
V
VDD = 4.5V
Input High Voltage
P0, P1, P2, P3, EA
V_IH1
2.4 VDD +0.2
V
VDD = 5.5V
Input High Voltage RST
V_IH2
3.5 VDD +0.2
V
VDD = 5.5V
Input High Voltage
XTAL1^[*3]
V_IH3
3.5 VDD +0.2
V
VDD = 5.5V
Sink current
P1, P3
VDD =4.5V
I_SK1
4
10
mA
Vs = 0.45V
Sink current
P0,P2, ALE, PSEN
VDD =4.5V
I_SK2
8
12
mA
VOL = 0.45V
Source current
P1, P3
VDD =4.5V
I_SR1
-180
-360
uA
VOL = 2.4V
Source current
P0, P2, ALE, PSEN
VDD =4.5V
I_SR2
-10
-14
mA
VOL = 2.4V
Output Low Voltage
P1, P3
V_OL1
-
0.45
V
VDD = 4.5V
IOL = +6 mA
Output Low Voltage
P0, P2, ALE, PSEN ^[*2]
V_OL2
-
0.45
V
VDD = 4.5V
IOL = +10 mA
Output High Voltage
P1, P3
V_OH1
2.4
-
V
VDD = 4.5V
IOH = -180 µA
Output High Voltage
P0, P2, ALE, PSEN ^[*2]
V_OH2
2.4
-
V
VDD = 4.5V
IOH = -10mA
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 can source a transition current when they are being externally driven from 1 to 0. The transition
current reaches its maximum value when VIN approximates to 2V.
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