W77E058A Datasheet, PDF (77/87 Pages) Winbond – 8-BIT MICROCONTROLLER

W77E058A
D.C. Characteristics, continued.
PARAMETER
SYMBOL
SPECIFICATION
MIN.
MAX. UNIT
TEST CONDITIONS
Output Low Voltage
P1, P2, P3
VOL1
-
0.45
V
VDD = 4.5V
IOL = +2 mA
Output Low Voltage
P0, ALE, PSEN ^[*2]
VOL2
-
0.45
V
VDD = 4.5V
IOL = +4 mA
Output High Voltage
P1, P2, P3
VOH1
2.4
-
V
VDD = 4.5V
IOH = -100 µA
Output High Voltage
P0, ALE, PSEN ^[*2]
VOH2
2.4
-
V
VDD = 4.5V
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 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.
17.3 A.C. Characteristics
t_CHCL
t_CLCH
t_CLCX
t_CLCL
t_CHCX
Note: Duty cycle is 50%.
External Clock Characteristics
PARAMETER
Clock High Time
Clock Low Time
Clock Rise Time
Clock Fall Time
SYMBOL
t_CHCX
t_CLCX
t_CLCH
t_CHCL
MIN.
12.5
12.5
-
-
TYP.
-
-
-
-
MAX.
-
-
10
10
UNITS
nS
nS
nS
nS
NOTES
- 77 -
Publication Release Date: April 17, 2007
Revision A10