U631H256CSC45 View Datasheet(PDF) - Zentrum Mikroelektronik Dresden AG
Part Name
Description
Manufacturer
U631H256CSC45 Datasheet PDF : 12 Pages
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Recommended
Operating Conditions
Power Supply Voltage
Input Low Voltage
Input High Voltage
Symbol
Conditions
VCC
VIL
-2 V at Pulse Width
10 ns permitted
VIH
U631H256
Min.
4.5
-0.3
2.2
Max.
5.5
0.8
VCC+0.3
Unit
V
V
V
DC Characteristics
Operating Supply Currentb
Average Supply Current during
STOREc
Average Supply Current
at tcR = 200 nsb
(Cycling CMOS Input Levels)
Standby Supply Currentd
(Cycling TTL Input Levels)
Standby Supply Curentd
(Stable CMOS Input Levels)
Symbol
Conditions
ICC1
VCC
VIL
VIH
ICC2
ICC3
ICC(SB)1
tc
tc
tc
VCC
E
W
VIL
VIH
VCC
W
VIL
VIH
VCC
E
ICC(SB)
tc
tc
tc
VCC
E
VIL
VIH
= 5.5 V
= 0.8 V
= 2.2 V
= 25 ns
= 35 ns
= 45 ns
= 5.5 V
≥ VCC-0.2 V
≥ VCC-0.2 V
≤ 0.2 V
≥ VCC-0.2 V
= 5.5 V
≥ VCC-0.2 V
≤ 0.2 V
≥ VCC-0.2 V
= 5.5 V
≥ VIH
= 25 ns
= 35 ns
= 45 ns
= 5.5 V
≥ VCC-0.2 V
≤ 0.2 V
≥ VCC-0.2 V
C-Type
K-Type
Unit
Min. Max. Min. Max.
95
100 mA
75
80 mA
65
70 mA
6
7 mA
15
15 mA
40
42 mA
36
38 mA
33
35 mA
1
1 mA
b: ICC1 and ICC3 are dependent on output loading and cycle rate. The specified values are obtained with outputs unloaded
The current ICC1 is measured for WRITE/READ - ratio of 1/2.
c: ICC2 is the average current required for the duration of the STORE cycle (tSTORE).
d: Bringing E ≥ VIH will not produce standby current levels until any nonvolatile cycle in progress has timed out.
The current ICC(SB)1 is measured for WRITE/READ - ratio of 1/2.
December 12, 1997
3
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