參數(shù)資料
型號(hào): μPD45256441
廠商: NEC Corp.
英文描述: 256M-Bit Synchronous DRAM(256M 同步 動(dòng)態(tài)RAM)
中文描述: 256M位同步DRAM(256M同步動(dòng)態(tài)RAM)的
文件頁(yè)數(shù): 69/84頁(yè)
文件大小: 1052K
代理商: ΜPD45256441
6
μ
P
P
13.20 Auto Precharge after Write Burst (1/2) (Burst length = 4, /CAS latency = 2)
CLK
CKE
/RAS
/CAS
/WE
BA1
/CS
T
0
T
1
T
2
T
3
T
4
T
5
T
6
T
7
T
8
T
9
T
10
T
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T
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T
13
T
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T
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T
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T
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T
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T
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T
21
ADD
DQM
DQ
A10
BA0
H
RAa
L
RAa
AAAAAAAAAAA
AAAAAAAAAAA
CAc
Bank A
Write Command
without
Auto Precharge
CAa
AAAAAA
AAAAAA
AAAAAA
Bank D
Write Command
with
Auto Precharge
AAAAAA
AAAAAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAAAAA
AAAAAA
AAAAAA
RDa
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAAAAAAAAAAAAA
AAA
AAAAAAAAAAA
AAAAAAAAAAA
AAAAAAAAAAA
AAAAAAAAAAA
AAAAAAAAAAA
AAAAAAAAAAA
Bank D
Auto Precharge
Start
AA
AA
RAc
RAc
AAAAAAAAAAA
AAAAAAAAAAA
CDa
Bank A
Activate
Command
Bank D
Activate
Command
Bank D
Activate
Command
Bank A
Activate
Command
AAAAAA
AAAAAA
AAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
Hi-Z
Bank A
Write Command
with
Auto Precharge
Bank A
Auto Precharge
Start
Bank D
Write Command
with
Auto Precharge
Bank D
Auto Precharge
Start
Bank A
Write Command
with
Auto Precharge
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