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參數(shù)資料
| 型號： | KM718V089T-60 |
| 元件分類： | SRAM |
| 英文描述： | 1M X 18 CACHE SRAM, 3.5 ns, PQFP100 |
| 封裝： | 20 X 14 MM, TQFP-100 |
| 文件頁數(shù)： | 19/20頁 |
| 文件大?。?/td> | 536K |
| 代理商： | KM718V089T-60 |
512Kx36 & 1Mx18 Synchronous SRAM
- 8 -
Rev 1.0
December 1999
KM718V089
KM736V989
SYNCHRONOUS TRUTH TABLE
Notes : 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).
CS1
CS2
ADSP ADSC
ADV
WRITE
CLK
ADDRESS ACCESSED
OPERATION
H
X
L
X
↑
N/A
Not Selected
L
X
L
X
↑
N/A
Not Selected
L
X
H
L
X
↑
N/A
Not Selected
L
X
L
X
↑
N/A
Not Selected
L
X
H
X
L
X
↑
N/A
Not Selected
L
H
L
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
H
L
H
↑
Next Address
Continue Burst Read Cycle
H
X
H
L
H
↑
Next Address
Continue Burst Read Cycle
X
H
L
↑
Next Address
Continue Burst Write Cycle
H
X
H
L
↑
Next Address
Continue Burst Write Cycle
X
H
↑
Current Address
Suspend Burst Read Cycle
H
X
H
↑
Current Address
Suspend Burst Read Cycle
X
H
L
↑
Current Address
Suspend Burst Write Cycle
H
X
H
L
↑
Current Address
Suspend Burst Write Cycle
TRUTH TABLES
WRITE TRUTH TABLE(x36)
Notes : 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
X
READ
H
L
H
READ
H
L
H
WRITE BYTE a
H
L
H
L
H
WRITE BYTE b
H
L
H
L
WRITE BYTE c and d
H
L
WRITE ALL BYTEs
L
X
WRITE ALL BYTEs
WRITE TRUTH TABLE(x18)
Notes : 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
OPERATION
H
X
READ
H
L
H
READ
H
L
H
WRITE BYTE a
H
L
H
L
WRITE BYTE b
H
L
WRITE ALL BYTEs
L
X
WRITE ALL BYTEs
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