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MCM6946YJ12 数据表(PDF) 9 Page - Motorola, Inc

部件名 MCM6946YJ12
功能描述  512K x 9 Bit Fast Static Random Access Memory
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制造商  MOTOROLA [Motorola, Inc]
网页  http://www.freescale.com
标志 MOTOROLA - Motorola, Inc

MCM6946YJ12 数据表(HTML) 9 Page - Motorola, Inc

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MCM6946
9
MOTOROLA FAST SRAM
WRITE CYCLE 2 (E Controlled; See Notes 1, 2, and 3)
P
Sb l
MCM6946–8
MCM6946–10
MCM6946–12
MCM6946–15
Ui
N
Parameter
Symbol
Min
Max
Min
Max
Min
Max
Min
Max
Unit
Notes
Write Cycle Time
tAVAV
8
10
12
15
ns
4
Address Setup Time
tAVEL
0
0
0
0
ns
Address Valid to End of Write
tAVEH
7
9
10
12
ns
Address Valid to End of Write (G High)
tAVEH
7
8
9
10
ns
Enable Pulse Width
tELEH,
tELWH
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
5
5
6
7
ns
Data Hold Time
tEHDX
0
0
0
0
ns
Write Recovery Time
tEHAX
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, TS = 44–Lead
TSOP Type II)
Shipping Method (R = Tape and Reel, Blank = Rails)
Speed (8 = 8 ns, 10 = 10 ns, 12 = 12 ns,
15 = 15 ns)
MCM 6946 XX XX XX
ORDERING INFORMATION
(Order by Full Part Number)
Full Part Numbers — MCM6946YJ8
MCM6946YJ10
MCM6946YJ12
MCM6946YJ15
MCM6946YJ8R
MCM6946YJ10R
MCM6946YJ12R
MCM6946YJ15R
MCM6946TS8
MCM6946TS10
MCM6946TS12
MCM6946TS15
MCM6946TS8R
MCM6946TS10R
MCM6946TS12R
MCM6946TS15R


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