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U62256A Datasheet, PDF (6/10 Pages) Zentrum Mikroelektronik Dresden AG – STANDARD 32K X 8 SRAM
U62256A
Data Retention Mode
E-Controlled
4.5 V
2.2 V
tDR
0V
VCC(DR) ≥ 2 V
Data Retention
trec
VCC
2.2 V
E
VCC(DR) - 0.2 V ≤ VE(DR) ≤ VCC(DR) + 0.3 V
Data Retention
Characteristics
Data Retention Supply Voltage
Data Retention Supply Current
Data Retention Setup Time
Operating Recovery Time
Symbol
Alt. IEC
Conditions
VCC(DR)
ICC(DR)
VCC(DR) = 3 V
VE
= VCC(DR) - 0.2 V
C-Type
K-Type
A-Type
tCDR
tR
tsu(DR)
trec
See Data Retention
Waveforms (above)
Min.
2
0
tcR
Typ. Max.
5.5
3
6
30
Unit
V
µA
µA
µA
ns
ns
Test Configuration for Functional Check
5V
A0
A1
VCC
A2
A3
A4
DQ0
A5
DQ1
960
VIH
A6
A7
DQ2
A8
DQ3
A9
DQ4
VIL
A10
A11
A12
DQ5
DQ6
A13
DQ7
VO
A14
E
W
G
VSS
30 pF e
510
e In measurement of tdis(E), tdis(W), tdis(G), ten(E), ten(W), ten(G) the capacitance is 5 pF.
6
April 20, 2004