參數(shù)資料
型號(hào): A42U2604V-80U
廠商: AMIC Technology Corporation
英文描述: 4M X 4 CMOS DYNAMIC RAM WITH EDO PAGE MODE
中文描述: 4米× 4的CMOS動(dòng)態(tài)RAM與江戶(hù)頁(yè)面模式
文件頁(yè)數(shù): 22/25頁(yè)
文件大小: 265K
代理商: A42U2604V-80U
A42U2604 Series
PRELIMINARY (June, 2002, Version 0.3)
21
AMIC Technology, Inc.
Self Refresh Mode
n
Self Refresh Mode.
a. Entering the Self Refresh Mode:
The A42U2604 Self Refresh Mode is entered by using
CAS
before
RAS
cycle and holding
RAS
and
CAS
signal
"low" longer than 100
μ
s.
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 A42U2604 exits the Self Refresh Mode when the
RAS
signal is brought "high".
t
RASS(52)
t
RP(2)
t
CRP(9)
t
CSR(48)
t
RPC(50)
RAS
t
RPS(53)
t
CHS(54)
t
ASR(10)
t
CP(44)
t
OFF(23)
A0 ~ A10
: High or Low
High-Z
I/O
0
~ I/O
3
UCAS
LCAS
ROW
COL
Note: WE, OE = Don't care.
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