LH5164ASH datasheet(5/10 Pages) SHARP

Numer części	LH5164ASH

Szczegółowy opis	CMOS 64K (8K x 8) Static RAM

PDF	10 Pages

Scroll/Zoom	100%

Producent	SHARP [Sharp Corporation]

Strona internetowa	http://sharp-world.com/

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DATA RETENTION CHARACTERISTICS (TA = -40 to +85°C)

2.5 V

DATA RETENTION MODE

VCC

0 V

VCC - 0.5 V

tCDR

5164ASH-6

VCCDR

CE1

CE1 ≥ VCCDR - 0.2 V

0 V

VCCDR

0.2 V

2.5 V

DATA RETENTION MODE

tCDR

CE2 CONTROL

CE1 CONTROL (NOTE)

CE2 0.2 V

NOTE: To control data hold at CE1, fix the input level of CE2 between VCCDR to VCCDR - 0.2 V or 0 V to 0.2 V

during the data retention.

VCC

CE2

≥

Figure 4. Low Voltage Data Retention

PARAMETER

SYMBOL

CONDITIONS

MIN.

MAX.

UNIT

NOTE

Data retention supply voltage

VCCDR

CE2

≤ 0.2 V or

CE1 ≥ VCCDR – 0.2 V

2.0

5.5

Data retention supply current

ICCDR

VCCDR = 3 V,

CE2 ≤ 0.2 V or

CE1 ≥ VCCDR – 0.2 V

TA = 25

°C

0.2

µA

TA = 40

°C

0.4

µA

0.6

µA

Chip disable to data retention

tCDR

0ns

Recovery time

tRC

NOTES:

CE2 should be ≥ VCCDR - 0.2 V or ≤ 0.2 V when CE1 ≥ VCCDR - 0.2 V.

tRC = Read cycle time

CMOS 64K (8K

× 8) Static RAM

LH5164ASH

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