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M65KG256AB Datasheet(PDF) 18 Page - STMicroelectronics

Part # M65KG256AB
Description  256Mbit (4 Banks x 4M x 16) 1.8V Supply, 133MHz Clock Rate, DDR Low Power SDRAM
PDF  51 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M65KG256AB Datasheet(HTML) 18 Page - STMicroelectronics

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3 Commands
M65KG256AB
18/51
Table 4.
Minimum Delay Between two Commands in Concurrent Auto Precharge Mode
Table 5.
Burst Type Definition
From Command
To Command(1)
1.
This command must be issued to a different Bank from the initial command and must not interrupt it.
Minimum Delay Between the 2 Commands in
Concurrent auto Precharge Mode(2)
2.
BL = Burst Length.
Unit
READA
READ or READA
BL/2
tCK
WRITE or WRITEA
CAS Latency (rounded up) + BL/2
tCK
PRE, PALL or ACT
1
tCK
WRITEA
READ or READA
1 + BL/2 + tWTR
tCK
WRITE or WRITEA
BL/2
tCK
PRE, PALL or ACT
1
tCK
Start
Addr.
(A0-A3)
Burst Length = 2
Words
Burst Length = 4
Words
Burst Length = 8 Words
Burst Length = 16 Words
Sequen
-tial
Inter-
leaved
Sequen-
tial
Inter-
leaved
Sequential
Interleaved
Sequential
Interleaved
00h
0-1
0-1
0-1-2-3
0-1-2-3
0-1-2-3-4-5-6-7 0-1-2-3-4-5-6-7
0-1-2-..D-E-F
0-1-2-..D-E-F
01h
1-0
1-0
1-2-3-0
1-0-3-2
1-2-3-4-5-6-7-0 1-0-3-2-5-4-7-6
1-2-3..D-E-F-0
1-0-3-..C-F-E
02h
2-3-0-1
2-3-0-1
2-3-4-5-6-7-0-1 2-3-0-1-6-7-4-5
2-3-4..E-F-0-1
2-3-0- ..F-C-D
03h
3-0-1-2
3-2-1-0
3-4-5-6-7-0-1-2 3-2-1-0-7-6-5-4
3-4-5..F-0-1-2
3-2-1-..E-D-C
04h
4-5-6-7-0-1-2-3 4-5-6-7-0-1-2-3
4-5-6..0-1-2-3
4-5-6-..9-A-B
05h
5-6-7-0-1-2-3-4 5-4-7-6-1-0-3-2
5-6-7..1-2-3-4
5-4-7..8-B-A
06h
6-7-0-1-2-3-4-5 6-7-4-5-2-3-0-1
6-7-8..2-3-4-5
6-7-4-..B-8-9
07h
7-0-1-2-3-4-5-6 7-6-5-4-3-2-1-0
7-8-9..3-4-5-6
7-6-5-..A-9-8
08h
8-9-A..4-5-6-7
8-9-A..5-6-7
09h
9-A-B..5-6-7-8
9-8-A..4-7-6
0Ah
A-B-C..6-7-8-9
A-B-8..7-4-5
0Bh
B-C-D..7-8-9-A
B-A-9..6-5-4
0Ch
C-D-E..8-9-A-B
C-D-E..1-2-3
0Dh
D-E-F..9-A-B-C
D-C-F..0-3-2
0Eh
E-F-0..A-B-C-
D
E-F-C..3-0-1
0Fh
F-0-1..B-C-D-E
F-E-D..2-1-0



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