71M6403
Electronic Trip Unit
SEPTEMBER 2006
RECOMMENDED OPERATING CONDITIONS
PARAMETER
CONDITION
MIN
3.0
0
TYP
3.3
MAX
3.6
UNIT
V
3.3V Supply Voltage
Normal Operation
Battery Backup
(V3P3A, V3P3D) †
3.45
5.5
V
2.9
-40
V
VLCD
Operating Temperature
85
ºC
†V3P3A and V3P3D should be shorted together on the circuit board. GNDA and GNDD should also be shorted on the circuit
board.
LOGIC LEVELS
PARAMETER
Digital high-level input voltage, VIH
Digital low-level input voltage, VIL
CONDITION
MIN
2
TYP
MAX
V3P3D
0.8
UNIT
V
V
−0.3
V3P3D
–0.4
ILOAD = 1mA
LOAD = 15mA
V3P3D
V
V
Digital high-level output voltage VOH
V3P3D-
0.6
I
ILOAD = 1mA
ILOAD = 15mA
VIN=0V
0
0.4
0.8
V
V
Digital low-level output voltage VOL
Input pull-up current, IIL
RESETZ
10
100
µA
E_RXTX, E_ISYNC/BRKRQ
E_RST
Input pull down current, IIH
CK
VIN=V3P3D
10
-1
100
1
µA
µA
Input current
Other digital inputs
Page: 65 of 75
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