參數(shù)資料
型號: μPD45256441
廠商: NEC Corp.
英文描述: 256M-Bit Synchronous DRAM(256M 同步 動態(tài)RAM)
中文描述: 256M位同步DRAM(256M同步動態(tài)RAM)的
文件頁數(shù): 65/84頁
文件大小: 1052K
代理商: ΜPD45256441
6
μ
P
P
13.18 Interleaved Column Write Cycle (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
11
T
12
T
13
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
AA
AA
AAA
L
AA
AA
AAAAAAAAAAA
AAAAAAAAAAA
H
Bank A
Activate
Command
Bank A
Write
Command
Bank B
Write
Command
Bank B
Activate
Command
Bank B
Write
Command
Bank B
Write
Command
Bank B
Write
Command
Bank A
Write
Command
Ba1
Ba2
Aa1
Aa2
Aa4
Aa3
Bc1
Bc2
Bd1
Bd2
Bb1
Bb2
Ab2
Ab1
Bd3
Bd4
Bank A
Precharge
Command
RAa
CAa
RBa
CBa
CBb
CBc
CAb
AA
AA
AAA
AA
AAA
RBa
AA
AA
AA
AA
AA
AA
AA
AA
AA
CBd
AA
AAA
AAA
AAA
RAa
AA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
Bank B
Precharge
Command
AAAAA
AAAAA
Hi-Z
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