UL631H256 Просмотр технического описания (PDF) - Simtek Corporation
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UL631H256 Datasheet PDF : 13 Pages
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Recommended
Operating Conditions
Power Supply Voltage
Input Low Voltage
Input High Voltage
UL631H256
Symbol
Conditions
VCC
tc = 35 ns
tc = 45 ns
VIL
-2 V at Pulse Width
10 ns permitted
VIH
Min.
3.0
2.7
-0.3
2.2
Max.
3.6
3.6
0.8
VCC+0.3
Unit
V
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
ICC1
ICC2
ICC3
ICC(SB)1
ICC(SB)
Conditions
VCC
= 3.6 V
VIL
= 0.8 V
VIH
= 2.2 V
tc
= 35 ns
tc
= 45 ns
VCC
= 3.6 V
E
≥ VCC-0.2 V
W
≥ VCC-0.2 V
VIL
≤ 0.2 V
VIH
≥ VCC-0.2 V
VCC
= 3.6V
W
≥ VCC-0.2 V
VIL
≤ 0.2 V
VIH
≥ VCC-0.2 V
VCC
= 3.6 V
E
≥ VIH
tc
= 35ns
tc
= 45 ns
VCC
= 3.6 V
E
≥ VCC-0.2 V
VIL
≤ 0.2 V
VIH
≥ VCC-0.2 V
C-Type
K-Type
Unit
Min. Max. Min. Max.
45
47 mA
35
37 mA
3
4 mA
10
11 mA
11
12 mA
9
10 mA
0.7
0.7 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.
March 31, 2006
STK Control #ML0057
3
Rev 1.0
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