LH521028 Просмотр технического описания (PDF) - Sharp Electronics

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производитель

LH521028

CMOS 64K × 18 Static RAM

Sharp Electronics 

CMOS 64K × 18 Static RAM

LH521028

ABSOLUTE MAXIMUM RATINGS 1

PARAMETER

RATING

VCC to VSS Potential

Input Voltage Range

DC Output Current 2

Storage Temperature Range

–0.5 V to 7 V

–0.5 V to VCC + 0.5 V

± 40 mA

–65oC to 150oC

Power Dissipation (Package Limit) 2 W

NOTES:

1. Stresses greater than those listed under ‘Absolute Maximum Ratings’ may cause permanent damage to the device. This is a stress rating for

transient conditions only. Functional operation of the device at these or any other conditions above those indicated in the ‘Operating Range’

of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

2. Outputs should not be shorted for more than 30 seconds. No more than one output should be shorted at any time.

OPERATING RANGES

SYMBOL

PARAMETER

MIN TYP

TA

Temperature, Ambient

0

VCC

Supply Voltage

4.5 5.0

VSS

Supply Voltage

0

0

VIL

Logic ‘0’ Input Voltage 1

– 0.5

VIH

Logic ‘1’ Input Voltage

2.2

NOTE:

1. Negative undershoot of up to 3.0 V is permitted once per cycle.

MAX

70

5.5

0

0.8

VCC + 0.5

UNIT

oC

V

V

V

V

DC ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

ICC1

Operating Current 1

TEST CONDITIONS

tCYCLE = minimum

MIN

TYP

MAX UNIT

300 mA

ISB1

Standby Current

E ≥ VCC – 0.2 V

VIN ≥ VCC – 0.2 V or VIN ≤ 0.2 V

f=0

4

mA

ISB2

Standby Current

E ≥ VIH

VIN = VIH or VIL

50 mA

ILI

Input Leakage Current VIN = 0 V to VCC

–2

2

µA

ILO

I/O Leakage Current

VIN = 0 V to VCC

–2

2

µA

VOH

Output High Voltage

IOH = –4.0 mA

2.4

V

VOL

Output Low Voltage

IOL = 8.0 mA

0.4

V

NOTE:

1. ICC is dependent upon output loading and cycle rates. Specified values are with outputs open.

4-215

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