參數(shù)資料
型號: MCM6729WJ10R2
廠商: MOTOROLA INC
元件分類: DRAM
英文描述: 256K x 4 Bit Fast Static Random Access Memory
中文描述: 256K X 4 STANDARD SRAM, 10 ns, PDSO32
封裝: 0.400 INCH, PLASTIC, SOJ-32
文件頁數(shù): 6/8頁
文件大?。?/td> 145K
代理商: MCM6729WJ10R2
MCM6729
6
MOTOROLA FAST SRAM
WRITE CYCLE 2
(E Controlled, See Notes 1 and 2)
MCM6729–10
MCM6729–12
Parameter
Symbol
Min
Max
Min
Max
Unit
Notes
Write Cycle Time
tAVAV
tAVEL
tAVEH
tELEH,
tELWH
10
12
ns
3
Address Setup Time
0
0
ns
Address Valid to End of Write
8
9
ns
Enable to End of Write
8
9
ns
4,5
Data Valid to End of Write
tDVEH
tEHDX
tEHAX
5
6
ns
Data Hold Time
0
0
ns
Write Recovery Time
0
0
ns
NOTES:
1. A write occurs during the overlap of E low and W low.
2. For common I/O applications, minimization or elimination of bus contention conditions is necessary during read and write cycles.
3. All write cycle timings are referenced from the last valid address to the first transitioning address.
4. If E goes low coincident with or after W goes low, the output will remain in a high impedance condition.
5. If E goes high coincident with or before W goes high, the output will remain in a high impedance condition.
WRITE CYCLE 2
tEHDX
tDVEH
tEHAX
tELWH
tELEH
tAVEL
tAVEH
DATA VALID
tAVAV
HIGH–Z
A (ADDRESS)
W (WRITE ENABLE)
E (CHIP ENABLE)
Q (DATA OUT)
D (DATA IN)
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