W77C32_07 Datasheet, PDF (68/78 Pages) Winbond – 8-BIT MICROCONTROLLER

W77C32/W77C032A
DC Characteristics, continued
PARAMETER
Input High Voltage
P0, P1, P2, P3, EA
Input High Voltage
RST
Input High Voltage
XTAL1^[*3]
Output Low Voltage
P1, P2, P3
Output Low Voltage
P0, ALE, PSEN ^[*2]
Output High Voltage
P1, P2, P3
Output High Voltage
P0, ALE, PSEN ^[*2]
SYM.
VIH1
VIH2
VIH3
VOL1
VOL2
VOH1
VOH2
SPECIFICATION
MIN.
MAX. UNIT
TEST CONDITIONS
2.4 VDD +0.2 V VDD = 5.5V
3.5 VDD +0.2 V VDD = 5.5V
3.5 VDD +0.2 V VDD = 5.5V
-
0.45
V ^{VDD = 4.5V}
IOL = +2 mA
VDD = 4.5V
-
0.45
V
IOL = +4 mA
VDD = 4.5V
2.4
-
V
IOH = -100 μA
VDD = 4.5V
2.4
-
V
IOH = -400 μA
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. The transition
current reaches its maximum value when VIN approximates to 2V.
16.3 A.C. Characteristics
t_CHCL
t_CLCH
t_CLCX
t_CLCL
t_CHCX
16.3.1 External Clock Characteristics
PARAMETER
Clock High Time
Clock Low Time
Clock Rise Time
Clock Fall Time
Note: Duty cycle is 50 %.
SYMBOL
t_CHCX
t_CLCX
t_CLCH
t_CHCL
MIN.
12.5
12.5
-
-
TYP.
-
-
-
-
MAX.
-
-
10
10
UNITS
nS
nS
nS
nS
NOTES
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