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參數(shù)資料
| 型號： | KM44S4020CT |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 2M x 4Bit x 2 Banks Synchronous DRAM(2M x 4位 x 2組同步動態(tài)RAM) |
| 中文描述： | 2米x 4位× 2銀行同步DRAM（2米× 4位× 2組同步動態(tài)RAM）的 |
| 文件頁數(shù)： | 25/44頁 |
| 文件大?。?/td> | 604K |
| 代理商： | KM44S4020CT |
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CMOS SDRAM
DEVICE OPERATIONS - I
ELECTRONICS
REV. 4 Feb. '98
X
X
X
CA, A
10
/AP
RA
A
10
/AP
X
OP code
X
X
X
CA, A
10
/AP
CA, A
10
/AP
RA
A
10
/AP
X
X
X
X
CA, A
10
/AP
CA, A
10
/AP
RA
A
10
/AP
X
X
X
X
CA, A
10
/AP
CA, A
10
/AP
RA
A
10
/AP
X
X
X
X
CA, A
10
/AP
RA, RA
10
X
X
X
X
CA, A
10
/AP
RA, RA
10
X
X
X
X
CA
RA
A
10
/AP
FUNCTION TRUTH TABLE (TABLE 1)
Current
State
CS
RAS
CAS
WE
BA
ADDR
ACTION
Note
H
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
H
L
L
L
L
L
H
L
L
L
L
L
H
L
L
L
L
L
IDLE
Row
Active
Read
Write
Read with
Auto
Precharge
Write with
Auto
Precharge
Pre-
charging
NOP
NOP
ILLEGAL
ILLEGAL
Row (& Bank) Active ; Latch RA
NOP
Auto Refresh or Self Refresh
Mode Register Access
NOP
NOP
ILLEGAL
Begin Read ; latch CA ; determine AP
Begin Write ; latch CA ; determine AP
ILLEGAL
Precharge
ILLEGAL
NOP (Continue Burst to End --> Row Active)
NOP (Continue Burst to End --> Row Active)
Term burst --> Row active
Term burst, New Read, Determine AP
Term burst, New Write, Determine AP
ILLEGAL
Term burst, Precharge timing for Reads
ILLEGAL
NOP (Continue Burst to End --> Row Active)
NOP (Continue Burst to End --> Row Active)
Term burst --> Row active
Term burst, New read, Determine AP
Term burst, New Write, Determine AP
ILLEGAL
Term burst, precharge timing for Writes
ILLEGAL
NOP (Continue Burst to End --> Precharge)
NOP (Continue Burst to End --> Precharge)
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
NOP (Continue Burst to End --> Precharge)
NOP (Continue Burst to End --> Precharge)
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
NOP --> Idle after t
RP
NOP --> Idle after t
RP
ILLEGAL
ILLEGAL
ILLEGAL
NOP --> Idle after t
RP
X
X
X
BA
BA
BA
X
OP code
X
X
X
BA
BA
BA
BA
X
X
X
X
BA
BA
BA
BA
X
X
X
X
BA
BA
BA
BA
X
X
X
X
BA
BA
X
X
X
X
BA
BA
X
X
X
X
BA
BA
BA
X
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
X
H
H
H
H
L
L
L
X
H
H
H
H
L
L
L
X
H
H
H
L
L
X
H
H
H
L
L
X
H
H
H
L
L
X
H
H
L
H
H
L
L
X
H
H
L
L
H
H
L
X
H
H
L
L
H
H
L
X
H
H
L
L
H
H
L
X
H
H
L
H
L
X
H
H
L
H
L
X
H
H
L
H
H
X
H
L
X
H
L
H
L
X
H
L
H
L
H
L
X
X
H
L
H
L
H
L
X
X
H
L
H
L
H
L
X
X
H
L
X
X
X
X
H
L
X
X
X
X
H
L
X
H
L
2
2
4
5
5
2
2
3
2
3
3
2
3
2
2
2
2
2
4
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|---|---|
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| KM44V4000AS-6 | 制造商:Samsung Electro-Mechanics 功能描述:Dynamic RAM, Fast Page, 4M x 4, 26 Pin, Plastic, TSOP |
| KM44V4000C | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:4M x 4Bit CMOS Dynamic RAM with Fast Page Mode |
| KM44V4100AT-7 | 制造商:Samsung Semiconductor 功能描述: |
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