V61C3181024-12T Ver la hoja de datos (PDF) - Mosel Vitelic, Corp

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V61C3181024-12T

128K X 8 HIGH SPEED STATIC RAM

Mosel Vitelic, Corp 

MOSEL VITELIC

Data Retention Characteristics

Symbol Parameter

VDR

VCC for Data Retention

CE1 ≥ VCC – 0.2V, CE2 ≤ 0.2V,

VIN ≥ VCC – 0.2V, or VIN ≤ 0.2V

ICCDR

Data Retention Current

CE1 ≥ VDR –0.2V, CE2 ≤ 0.2V,

VIN ≥ VCC – 0.2V, or VIN ≤ 0.2V

tCDR

Chip Deselect to Data Retention Time

tR

Operation Recovery Time (see Retention Waveform)

NOTES:

1. tRC = Read Cycle Time

2. TA = +25°C.

V61C3181024

Min.

2.0

Typ.(2)

—

Max.

5.5

Units

V

—

75

150

µA

0

—

—

ns

tRC(1)

—

—

ns

Low VCC Data Retention Waveform (1) (CE1 Controlled)

Data Retention Mode

VCC

4.5V

VDR ≥ 2V

tCDR

tR

CE1

2.2V

CE1 ≥ VCC – 0.2V

4.5V

2.2V

3181024 07

Low VCC Data Retention Waveform (2) (CE2 Controlled)

Data Retention Mode

VCC

4.5V

VDR ≥ 2V

tCDR

tR

CE2

2.2V

CE2 ≤ 0.2V

4.5V

2.2V

3181024 08

V61C3181024 Rev. 1.3 February 1999

5

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