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參數(shù)資料
型號: MCM6949YJ12R
廠商: MOTOROLA INC
元件分類: SRAM
英文描述: 1M x 4 Bit Static Random Access Memory
中文描述: 1M X 4 STANDARD SRAM, 12 ns, PDSO32
封裝: 0.400 INCH, SOJ-32
文件頁數(shù): 9/10頁
文件大小: 122K
代理商: MCM6949YJ12R
MCM6949
9
MOTOROLA FAST SRAM
WRITE CYCLE 2
(E Controlled; See Notes 1, 2, and 3)
Parameter
Symbol
b l
MCM6949–8
MCM6949–10
MCM6949–12
MCM6949–15
U i
Unit
Notes
Min
Max
Min
Max
Min
Max
Min
Max
Write Cycle Time
tAVAV
tAVEL
tAVEH
tAVEH
tELEH,
tELWH
8
10
12
15
ns
4
Address Setup Time
0
0
0
0
ns
Address Valid to End of Write
7
9
10
12
ns
Address Valid to End of Write (G High)
7
8
9
10
ns
Enable Pulse Width
8
9
10
12
ns
5, 6
Enable Pulse Width (G High)
tELEH,
tELWH
7
8
9
10
ns
5, 6
Data Valid to End of Write
tDVEH
tEHDX
tEHAX
5
5
6
7
ns
Data Hold Time
0
0
0
0
ns
Write Recovery Time
0
0
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.
DATA VALID
HIGH–Z
tAVAV
tAVEH
tAVEL
tELWH
tEHAX
tDVEH
tEHDX
A (ADDRESS)
E (CHIP ENABLE)
W (WRITE ENABLE)
D (DATA IN)
Q (DATA OUT)
tELEH
WRITE CYCLE 2
(E Controlled; See Notes 1, 2, and 3)
Motorola Memory Prefix
Part Number
Package (YJ = 400 mil SOJ)
Shipping Method (R = Tape and Reel, Blank = Rails)
Speed (8 = 8 ns, 10 = 10 ns, 12 = 12 ns,
15 = 15 ns)
MCM 6949
XX XX XX
ORDERING INFORMATION
(Order by Full Part Number)
Full Part Numbers — MCM6949YJ8
MCM6949YJ10
MCM6949YJ10R
MCM6949YJ12
MCM6949YJ12R
MCM6949YJ15
MCM6949YJ15R
MCM6949YJ8R
相關(guān)PDF資料
PDF描述
MCM6949YJ15 1M x 4 Bit Static Random Access Memory
MCM6949YJ15R 1M x 4 Bit Static Random Access Memory
MCM6949YJ8 1M x 4 Bit Static Random Access Memory
MCM69C233 4K x 64 CAM(4K x 64內(nèi)容可尋址存儲器)
MCM69C433 A Flexible Content-Addressable Memory (16K x 64 CAM)(1M內(nèi)容可定址存儲器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCM6949YJ15 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:1M x 4 Bit Static Random Access Memory
MCM6949YJ15R 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:1M x 4 Bit Static Random Access Memory
MCM6949YJ8 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:1M x 4 Bit Static Random Access Memory
MCM6949YJ8R 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:1M x 4 Bit Static Random Access Memory
MCM69C232 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:4K x 64 CAM
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