Figure 11. Low VCC Data Retention AC Waveforms
5V
VCC
3V
VDR > 2.0V
DATA RETENTION MODE
tCDR
E 2.2V
E ≥ VDR – 0.3V
M68Z512
tER
AI03039
Table 9. Low VCC Data Retention Characteristics
Symbol
Parameter(1)
Test Condition
Min Typ
ICCDR(2) Supply Current (Data Retention)
VCC = 3V, E ≥ VCC – 0.3V
0.4
VDR Supply Voltage (Data Retention)
E ≥ VCC – 0.3V, f = 0
2
tCDR Chip Disable to Power Down
E ≥ VCC – 0.3V, f = 0
0
tER(3) Operation Recovery Time
tAVAV
Note: 1. Valid for Ambient Operating Temperature: TA = 0 to 70°C; VCC = 4.5 to 5.5V (except where noted).
2. Typical condition: TA = 25°C.
3. See Figure 11 for measurement points. Guaranteed but not tested. tAVAV is READ Cycle time.
Max
10
Unit
µA
V
ns
ns
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