Preliminary W78E51B
ABSOLUTE MAXIMUM RATINGS
PARAMETER
DC Power Supply
SYMBOL
MIN.
-0.3
MAX.
+7.0
UNIT
V
VDD- VSS
VIN
Input Voltage
VSS -0.3
0
VDD +0.3
70
V
Operating Temperature
Storage Temperature
TA
°C
°C
TST
-55
+150
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the
device.
DC CHARACTERISTICS
VCC- VSS = 5V ±10%, TA = 25° C, unless otherwise specified.
PARAMETER
SYMBOL
TEST CONDITIONS
SPECIFICATION
UNIT
MIN.
MAX.
5.5
20
Operating Voltage
VDD
IDD
4.5
V
Operating Current
Idle Current
No load VDD = 5.5V
Idle mode VDD = 5.5V
Power-down mode
VDD = 5.5V
-
-
-
mA
mA
mA
IIDLE
IPWDN
6
Power Down Current
50
Input Current
IIN1
ITL
VDD = 5.5V
-50
-550
-10
+10
-
mA
mA
mA
mA
P1, P2, P3, P4
VIN = 0V or VDD
Logical 1-to-0 Transition
Current P1, P2, P3(*1), P4
Input Current
VDD = 5.5V
VIN = 2.0V (*1)
VDD = 5.5V
IIN2
ILK
+300
+10
RST (*2)
VIN = VDD
Input Leakage Current
VDD = 5.5V
-10
0V < VIN < VDD
P0, EA
Output Low Voltage
P1, P2, P3, P4
Output Low Voltage
ALE, PSEN , P0 (*3)
Output High Voltage
P1, P2, P3, P4
VOL1
VOL2
VDD = 4.5V
IOL1 = +2 mA
VDD = 4.5V
IOL2 = +4 mA
-
-
0.45
0.45
V
V
VOH1
VOH2
VDD = 4.5V
2.4
2.4
-
-
V
V
IOH1 = -100 mA
VDD = 4.5V
Output High Voltage
ALE, PSEN , P0 (*3)
IOH2 = -400 mA
- 12 -
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