AS5C4009DG-55L/IT(2003) Просмотр технического описания (PDF) - Austin Semiconductor

Номер в каталоге

Компоненты Описание

производитель

AS5C4009DG-55L/IT
(Rev.:2003)

512K x 8 SRAM Ultra Low Power SRAM

Austin Semiconductor 

Austin Semiconductor, Inc.

SRAM

AS5C4009

WRITE CYCLE NO. 1

(WE Controlled)

tWC

ADDRESS

CE\1111122222333334444455555666667777788888999990000011111222223333344444555556666677777888881111199999222220000033333111114444422225555566666777778888899999

WE\

tAS11111(5)222223333344444555556666677777

tCW(4)

t AW

tWP(3)

tW11111R22222(6)333331111444442111211225555532322223366666434333344545444455656555566767666677878777788989888899090999900101000011212111122323222233434333344545444455655555666766766677

DATA IN

DATA OUT

tWHZ

Data Undefined

tDW

tDH

Data Valid

tOW

WRITE CYCLE NO. 2

(Write Enabled Controlled)

ADDRESS

tAS(5)

tWC

tCW(4)

CE\

t AW

WE\11112222333344445555666677778888999900001111222233334444555566667777888899990000111122221111333322224444333355554444666655556666777788889999

tWP(3)

tWR(6)

1111222233334444555511116666222277773333444455556666777788889999000011112222333344445555666677778888

DATA IN

tDW

tDH

Data Valid

DATA OUT

High-Z

High-Z

NOTES:

1. tHZ and tOHZ are defined as the time at which the outputs achieve the open circuit conditions and are not referenced to output voltage levels.

2. At any given temperature adn voltage condition, tHZ (MAX) is less than tLZ (MIN) both for a given device and from device to

device interconnection.

3. A write occurs during the overlap of a low CE\ adn a low WE\. A write begins at the latest transistion among CE\ going Low and

WE\ going Low: A write end at the earliest transistion among CE\ going High and WE\ going High, tWP is measured from the

beginning of write to the end of write.

4. tCW is measured from the CE\ going Low to end of write.

5. tAS is measured from the address valid to the beginning of write.

6. tWR is measure from the end of write to the address change. tWR applied in case a write ends are CE\ or WE\ going High.

AS5C4009

Rev. 5.0 6/03

Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.

7

Share Link: