A418316S-25 데이터 시트보기 (PDF) - AMIC Technology

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A418316S-25

256K X 16 CMOS DYNAMIC RAM WITH FAST PAGE MODE

AMIC Technology 

Self Refresh Mode

RAS

tRP(2)

tRASS(52)

A418316 Series

tRPS(53)

UCAS

LCAS

tRPC(50)

A0~A8

tOFF(23)

I/O 0 ~

I/O 15

tCSR(48)

tCP(44)

High-Z

Note: WE, OE = Don't care.

tCHS(54)

tCRP(9)

tASR(10)

ROW

COL

: High or Low

n Self Refresh Mode.

a. Entering the Self Refresh Mode:

The A418316 Self Refresh Mode is entered by using CAS before RAS cycle and holding RAS and CAS signal “low”

longer than 100µs.

b. Continuing the Self Refresh Mode:

The Self Refresh Mode is continued by holding RAS “low” after entering the Self Refresh Mode.

It does not depend on CAS being “high” or “low” after entering the Self Refresh Mode continue the Self Refresh Mode.

c. Exiting the Self Refresh Mode:

The A418316 exits the Self Refresh Mode when the RAS signal is brought “high”.

PRELIMINARY (July, 2003, Version 0.0)

20

AMIC Technology, Inc.

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