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參數(shù)資料
| 型號(hào)： | KM736V795 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 128Kx36-Bit Synchronous Pipelined Burst SRAM(128Kx36位同步流水線脈沖靜態(tài) RAM) |
| 中文描述： | 128K × 36至位同步流水線突發(fā)靜態(tài)存儲(chǔ)器（128K × 36至位同步流水線脈沖靜態(tài)內(nèi)存） |
| 文件頁數(shù)： | 5/15頁 |
| 文件大?。?/td> | 316K |
| 代理商： | KM736V795 |
KM736V795
128Kx36 Synchronous SRAM
- 5 -
Rev 1.0
May. 1998
SYNCHRONOUS TRUTH TABLE
NOTE
: 1. X means "Don
′
t Care". 2. The rising edge of clock is symbolized by
↑
.
3. WRITE = L means Write operation in WRITE TRUTH TABLE.
WRITE = H means Read operation in WRITE TRUTH TABLE.
4. Operation finally depends on status of asynchronous input pins(ZZ and OE).
CS
1
CS
2
CS
2
ADSP ADSC
ADV
WRITE
CLK
Address Accessed
Operation
H
X
X
X
L
X
X
↑
N/A
Not Selected
L
L
X
L
X
X
X
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
N/A
Not Selected
L
X
H
L
X
X
X
N/A
Not Selected
L
L
X
X
L
X
X
N/A
Not Selected
L
X
H
X
L
X
X
N/A
Not Selected
L
H
L
L
X
X
X
External Address
Begin Burst Read Cycle
L
H
L
H
L
X
L
External Address
Begin Burst Write Cycle
L
H
L
H
L
X
H
External Address
Begin Burst Read Cycle
X
X
X
H
H
L
H
Next Address
Continue Burst Read Cycle
H
X
X
X
H
L
H
Next Address
Continue Burst Read Cycle
X
X
X
H
H
L
L
Next Address
Continue Burst Write Cycle
H
X
X
X
H
L
L
Next Address
Continue Burst Write Cycle
X
X
X
H
H
H
H
Current Address
Suspend Burst Read Cycle
H
X
X
X
H
H
H
Current Address
Suspend Burst Read Cycle
X
X
X
H
H
H
L
Current Address
Suspend Burst Write Cycle
H
X
X
X
H
H
L
Current Address
Suspend Burst Write Cycle
WRITE TRUTH TABLE
NOTE
: 1. X means "Don
′
t Care".
2. All inputs in this table must meet setup and hold time around the rising edge of CLK(
↑
).
GW
BW
WEa
WEb
WEc
WEd
Operation
H
H
X
X
X
X
READ
H
L
H
H
H
H
READ
H
L
L
H
H
H
WRITE BYTE a
H
L
H
L
H
H
WRITE BYTE b
H
L
H
H
L
L
WRITE BYTE c and d
H
L
L
L
L
L
WRITE ALL BYTEs
L
X
X
X
X
X
WRITE ALL BYTEs
ASYNCHRONOUS TRUTH TABLE
(See Notes 1 and 2)
:
Operation
ZZ
OE
I/O Status
Sleep Mode
H
X
High-Z
Read
L
L
DQ
L
H
High-Z
Write
L
X
Din, High-Z
Deselected
L
X
High-Z
TRUTH TABLES
NOTE
1. X means "Don
′
t Care".
2. ZZ pin is pulled down internally
3. For write cycles that following read cycles, the output buffers must be
disabled with OE, otherwise data bus contention will occur.
4. Sleep Mode means power down state of which stand-by current does
not depend on cycle time.
5. Deselected means power down state of which stand-by current
depends on cycle time.
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