Manual

W78C54
- 12 -
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL MIN. MAX. UNIT
DC Power Supply VCC−VSS -0.3 +7.0 V
Input Voltage VIN VSS -0.3 VCC +0.3 V
Operating Temperature TA 070
°C
Storage Temperature TST -55 +150
°C
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability
of the device.
DC CHARACTERISTICS
(VDD−VSS = 5V ±10%, TA = 25°C, Fosc = 20 MHz, unless otherwise specified.)
PARAMETER SYM. SPECIFICATION UNIT TEST CONDITIONS
MIN. MAX.
Operating Voltage VDD 4.5 5.5 V
Operating Current IDD - 20 mA No load
V
DD = 5.5V
Idle Current IIDLE - 6 mA Idle mode
V
DD = 5.5V
Power Down Current IPWDN -50
µA
Power-down mode
V
DD = 5.5V
Input Current
P1, P2, P3, P4
IIN1 -50 +10
µA
VDD = 5.5V
V
IN = 0V or VDD
Input Current
RST
IIN2 -10 +300
µA
VDD = 5.5V
0 < V
IN < VDD
Input Leakage Current
P0, EA
I
LK -10 +10
µA
VDD = 5.5V
0V < V
IN < VDD
Logic 1 to 0 Transition
Current
P1, P2, P3, P4
ITL [*4] -500 -200
µA
VDD = 5.5V
V
IN = 2.0V
Input Low Voltage
P0, P1, P2, P3, P4, EA
VIL1 0 0.8 V VDD = 4.5V
Input Low Voltage
RST
VIL2 0 0.8 V VDD = 4.5V
Input Low Voltage
XTAL1[*4]
VIL3 0 0.8 V VDD = 4.5V