參數(shù)資料
型號: SCM6343YJ15AR
廠商: MOTOROLA INC
元件分類: DRAM
英文描述: 256K x 15 Bit 3.3 V Asynchronous Fast Static RAM
中文描述: 256K X 16 STANDARD SRAM, 15 ns, PDSO44
封裝: 0.400 INCH, SOJ-44
文件頁數(shù): 7/10頁
文件大小: 169K
代理商: SCM6343YJ15AR
MCM6343
7
MOTOROLA FAST SRAM
WRITE CYCLE 2
(E Controlled; See Notes 1, 2, and 3)
Parameter
Symbol
b l
MCM6343–12
MCM6343–15
U i
Unit
Notes
Min
Max
Min
Max
Write Cycle Time
tAVAV
tAVEL
tAVEH
tAVEH
tELEH,
tELWH
12
15
ns
4
Address Setup Time
0
0
ns
Address Valid to End of Write
10
12
ns
Address Valid to End of Write (G High)
9
10
ns
Enable to End of Write
10
12
ns
5, 6
Enable to End of Write (G High)
tELEH,
tELWH
9
10
ns
5, 6
Data Valid to End of Write
tDVEH
tEHDX
tEHAX
6
7
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. Product sensitivities to noise require proper grounding and decoupling of power supplies as well as minimization or elimination of bus
contention conditions during read and write cycles.
3. If G goes low coincident with or after W goes low, the output will remain in a high–impedance state.
4. All write cycle timing is referenced from the last valid address to the first transitioning address.
5. If E goes low coincident with or after W goes low, the output will remain in a high–impedance condition.
6. If E goes high coincident with or before W goes high, the output will remain in a high–impedance condition.
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)
LB, UB (BYTE ENABLE)
WRITE CYCLE 2
(E Controlled; See Notes 1, 2, and 3)
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