W78C438C Datasheet, PDF (11/16 Pages) Winbond – 8-BIT MICROCONTROLLER

W78C438C
DC CHARACTERISTICS
VDD−VSS = 5V ±10%, TA = 25° C, FOSC = 20 MHz, unless otherwise specified.
PARAMETER
SYM.
TEST CONDITIONS
Oper. Voltage
VDD
Oper. Current
IDD * No load
Idle Current
IIDLE Program idle mode
Pwdn Current
IPWDN Program power-down mode
Input Leakage
Current
ILK1 _{INT2 , INT3}
Internal pull-high
Notes 1, 2
Input Leakage
Current
ILK2 RESET
Internal pull-low
Notes 1, 2
Input Leakage
Current
ILK3 _{EA , Port 0, DP4}
Note 1
Input Leakage
Current
ILK4 P1, P2, P3, P8
Note 1
Output Low Voltage VOL1 IOL1 = 2 mA (Port 1, 2, 3, 8)
Output High Voltage VOH1 IOH1 = -100 µA (Port 1, 2, 3, 8)
Output Low Voltage
VOL2
IOL2 = 4mA
Note 3
(ALE, PSEN, P0, DP4)
Output High Voltage VOH2 IOH2 = -400 µA
Note 3
(ALE, PSEN, P0, DP4)
Output Low Voltage VOL3 IOL2 = 2 mA (AP5, AP6, AP7)
Output High Voltage VOH3 IOH2 = -100 µA (AP5, AP6, AP7)
Input Voltage
VILT VDD = 5V ±10%
Input Voltage
VIHT VDD = 5V ±10%
Input Voltage
VILC VDD = 5V ±10%, XTAL1 Note 5
Input Voltage
VIHC VDD = 5V ±10%, XTAL1 Note 5
Input Voltage
VILR VDD = 5V ±10%, RESET Note 5
Input Voltage
VIHR VDD = 5V ±10%, RESET Note 5
MIN.
4.5
-
-
-
-300
-10
-10
-50
-
2.4
-
2.4
-
2.4
0
2.4
0
3.5
0
2.4
TYP. MAX.
5 5.5
-
20
-
7
-
50
- +10
- +300
- +10
- +10
- 0.45
-
-
- 0.45
-
-
- 0.45
-
-
-
0.8
-
Note 4
-
0.8
-
Note 4
-
0.8
-
Note 4
UNIT
V
mA
mA
µA
µA
µA
µA
µA
V
V
V
V
V
V
V
V
V
V
V
V
Notes:
1. 0 < VIN < VDD, for INT2 , INT3 , RESET, EA , Port 0, DP4, P1, P2, P3 and P8 inputs in leakage.
2. Using an internal pull low/high resistor (approx. 30K).
3. ALE, PSEN , P0 and DP4 in external program or data access mode.
4. The maximum input voltage is VDD +0.2V.
5. XTAL1 is a CMOS input and RESET is a Schmitt trigger input.
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Publication Release Date: July 1998
Revision A1