參數(shù)資料
型號: KM23SV32205T
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: 1M x32 Synchronous MASK ROM(1M×32位同步掩膜ROM)
中文描述: 100萬X32號,同步掩膜ROM(100萬× 32位同步掩膜光盤)
文件頁數(shù): 7/25頁
文件大?。?/td> 493K
代理商: KM23SV32205T
KM23SV32205T
MODE REGISTER FIELD TABLE TO PROGRAM MODES
Synch. MROM
Preliminary
Register Programmed with MRS
Address
A
6
A
5
A
4
A
3
A
2
A
1
A
0
Function
RAS Latency
CAS Latency
Burst Type
Burst Length
Burst Length
A
1
A
0
Length
0
0
Reserved
0
1
4
1
0
8
1
1
Reserved
Burst Type
A
2
Type
0
Sequential
1
Interleave
CAS Latency
A
5
A
4
A
3
Length
0
0
0
Reserved
0
0
1
2
0
1
0
3
0
1
1
4
1
0
0
5
1
0
1
6
1
1
0
Reserved
1
1
1
Reserved
RAS
A
6
Type
0
1
1
2
Notes :
-. After power up, when user wants to change mode register set, user must exit from power down mode
and start mode register set before entering normal operation mode.
(3) Each address is arranged as follows
for X32 operation
,
for X16 operation,
when CA7 is set to Low, data belonging to 0~15th registers are output to Q0~Q15 pins, and when CA7 is set to High, data belonging
to16~31th registers are output to Q0~Q15 pins.
Address Register
AR19
AR18
AR17
...
AR8
AR7
AR6
...
AR3
AR2
AR1
AR0
Address
RA12
RA11
RA10
...
RA1
RA0
CA6
...
CA3
CA2
CA1
CA0
(1) WORD = "H" : x32 Organization
Note : Column Address MSB (at x32 organization) (X=Don
t Care)
Function
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
A
9
A
10
A
11
A
12
Row Address
RA
0
RA
1
RA
2
RA
3
RA
4
RA
5
RA
6
RA
7
RA
8
RA
9
RA
10
RA
11
RA
12
Column Address
CA
0
CA
1
CA
2
CA
3
CA
4
CA
5
CA
6
Note
X
X
X
X
X
X
(2) WORD="L" : x16 Organization
Note : Column Address MSB (at x16 organization) (X=Don
t Care)
Function
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
A
9
A
10
A
11
A
12
Row Address
RA
0
RA
1
RA
2
RA
3
RA
4
RA
5
RA
6
RA
7
RA
8
RA
9
RA
10
RA
11
RA
12
Column Address
CA
0
CA
1
CA
2
CA
3
CA
4
CA
5
CA
6
CA
7
Note
X
X
X
X
X
ADDRESSING MAP
* Initial Address
- BL=4(CA0,CA1)
- BL=8(CA0,CA1,CA2)
BL=8
BL=4
MSB
LSB
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