參數(shù)資料
型號(hào): WED9LC6416V2012BI
廠商: MICROSEMI CORP-PMG MICROELECTRONICS
元件分類(lèi): 存儲(chǔ)器
英文描述: SPECIALTY MEMORY CIRCUIT, PBGA153
封裝: MO-163, BGA-153
文件頁(yè)數(shù): 24/27頁(yè)
文件大?。?/td> 334K
代理商: WED9LC6416V2012BI
6
White Electronic Designs Corporation Westborough, MA (508) 366-5151
White Electronic Designs
WED9LC6416V
SSRAM OPERATION TRUTH TABLE
Operation
Address Used
SSCE
SSADS
SSWE
SSOE
DQ
Deselected Cycle, Power Down
None
H
L
X
High-Z
WRITE Cycle, Begin Burst
External
L
X
D
READ Cycle, Begin Burst
External
L
H
L
Q
READ Cycle, Begin Burst
External
L
H
High-Z
READ Cycle, Suspend Burst
Current
X
H
L
Q
READ Cycle, Suspend Burst
Current
X
H
High-Z
READ Cycle, Suspend Burst
Current
H
L
Q
READ Cycle, Suspend Burst
Current
H
High-Z
WRITE Cycle, Suspend Burst
Current
X
H
L
X
D
WRITE Cycle, Suspend Burst
Current
H
L
X
D
NOTE:
1. X means “don’t care”, H means logic HIGH. L means logic LOW.
2. All inputs except SSOE must meet setup and hold times around the rising edge (LOW to HIGH) of SSCLK.
3. Suspending burst generates wait cycle
4. For a write operation following a read operation, SSOE must be HIGH for data tS + tOEHZ and must stay HIGH throughout the input data hold time.
SSRAM PARTIAL TRUTH TABLE
Function
SSWE BWE0 BWE1 BWE2 BWE3
READ
H
X
WRITE one Byte (DQ0-7)L
L
H
WRITE all Bytes
L
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