HM6268LP-45 datasheet(9/9 Pages) ETC2

Part #	HM6268LP-45

Description	4096-word X 4-bit High-Speed CMOS Static RAM

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HM6268 Series

Low VCC Data Retention Characteristics (0°C ≤ Ta ≤ 70°C)

These characteristics are guaranteed only for L-version.

Parameter

Symbol

Min

Typ

Max

Unit

Test conditions

VCC for data retention

VDR

2.0

—

V

Data retention current

ICCDR

——30 * 2

µA

20 * 3

Chip deselect to data retention time

tCDR

2.0

—

ns

Operation recovery time

tR

tRC * 1

——ns

Notes:

1. Read cycle time

2. VCC = 3.0 V

3. VCC = 2.0 V

Low VCC Data Retention Waveform

See retention

waveform

CS

≥ V

CC – 0.2 V,

VIN ≥ VCC – 0.2 V, or

0 V

≤ V

IN ≤ 0.2 V

VCC

CS

4.5 V

2.2 V

VDR

0 V

VDR

CS

≥ V

CC – 0.2 V

tR

tCDR

Data retention mode

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HM6268LP-45 Datasheet(PDF) 9 Page - List of Unclassifed Manufacturers

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