參數(shù)資料
型號(hào): K7B323625M
廠(chǎng)商: SAMSUNG SEMICONDUCTOR CO. LTD.
元件分類(lèi): DRAM
英文描述: 1Mx36 & 2Mx18 Synchronous SRAM
中文描述: 1Mx36
文件頁(yè)數(shù): 7/19頁(yè)
文件大?。?/td> 264K
代理商: K7B323625M
K7B321825M
1Mx36 & 2Mx18 Synchronous SRAM
- 7 -
Rev 2.0
Nov. 2003
K7B323625M
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).
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
( 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
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
TRUTH TABLES
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
H
X
X
READ
H
L
H
H
READ
H
L
L
H
WRITE BYTE a
H
L
H
L
WRITE BYTE b
H
L
L
L
WRITE ALL BYTEs
L
X
X
X
WRITE ALL BYTEs
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