V53C8256HT50 データシートの表示（PDF） - Mosel Vitelic Corporation

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V53C8256HT50

ULTRA-HIGH SPEED, 256K x 8 FAST PAGE MODE CMOS DYNAMIC RAM

Mosel Vitelic Corporation  

MOSEL VITELIC

Absolute Maximum Ratings*

Ambient Temperature

Under Bias .............................. –10°C to +80°C

Storage Temperature (plastic) ...... -55°C to +125°C

Voltage Relative to VSS ...................–1.0V to +7.0V

Data Output Current ..................................... 50 mA

Power Dissipation .......................................... 1.0 W

*Note: Operation above Absolute Maximum Ratings can

adversely affect device reliability.

V53C8256H

Capacitance*

TA = 25°C, VDD = 5 V ± 10%, VSS = 0 V

Symbol Parameter

Min. Max. Unit

CIN1

CIN2

COUT

Address Input

RAS, CAS, WE, OE

Data Input/Output

3

4 pF

4

5 pF

5

7 pF

*Note: Capacitance is sampled and not 100% tested.

Block Diagram

OE

WE

CAS

RAS

RAS CLOCK

GENERATOR

256K x 8

CAS CLOCK

GENERATOR

WE CLOCK

GENERATOR

OE CLOCK

GENERATOR

VDD

VSS

A0

A1

•

•

•

A7

A8

REFRESH

COUNTER

9

Y0 -Y8

DATA I/O BUS

COLUMN DECODERS

SENSE AMPLIFIERS

512 x 8

X 0 -X8

512

MEMORY

ARRAY

I/O 1

I/O 2

I/O 3

I/O

I/O 4

BUFFER

I/O 5

I/O 6

I/O 7

I/O 8

8256H-05

V53C8256H Rev. 1.2 July 1997

3

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