MCM56824AZP25R2 查看數據表（PDF） - Motorola => Freescale
零件编号
产品描述 (功能)
比赛名单
MCM56824AZP25R2 Datasheet PDF : 10 Pages
| |||
WRITE CYCLE TIMING (Write Enable Initiated, See Note 1)
MCM56824A–20 MCM56824A–25 MCM56824A–35
Parameter
Symbol Min
Max
Min
Max
Min
Max
Unit Notes
Write Cycle Time
tAVAV
20
—
25
—
35
—
ns
Address Setup Time
tAVWL
0
—
0
—
0
—
ns
2
MUX Control Setup Time
tVSVWL
0
—
0
—
0
—
ns
Address Valid to End of Write
tAVWH
15
—
20
—
30
—
ns
MUX Control Valid to End of Write
tVSVWH
15
—
20
—
30
—
ns
Write Pulse Width
tWLWH
15
—
15
—
20
—
ns
3
Write Enable to Chip Enable Disable
tWLE1H
15
—
15
—
20
—
ns
3, 4
tWLE2L
Chip Enable to End of Write
tE1LWH
15
—
15
—
20
—
ns
3, 4
tE2HWH
Data Valid to End of Write
tDVWH
8
—
10
—
15
—
ns
Data Hold Time
tWHDX
0
—
0
—
0
—
ns
5
Write Recovery Time
tWHAX
0
—
0
—
0
—
ns
2
MUX Control Recovery Time
tWHVSX
0
—
0
—
0
—
ns
Write High to Output Low–Z
tWHQX
4
—
5
—
5
—
ns
6
Write Low to Output High–Z
tWLQZ
0
15
0
15
0
15
ns
6
NOTES:
1. A write cycle starts at the latest transition of E1 low, W low, or E2 high. A write cycle ends at the earliest transition of E1 high, W high, or E2
low.
2. Write must be high for all address transitions.
3. If W goes low coincident with or prior to E1 low or E2 high the outputs will remain in a high–impedance state.
4. E1 in the timing diagrams represents both E1 and E2 with E1 asserted low and E2 asserted high.
5. During this time the output pins may be in the output state. Signals of opposite phase must not be applied to the outputs at this time.
6. Transition is measured ± 500 mV from steady–state voltage with load of Figure 1b. This parameter is sampled and not 100% tested. At any
given voltage and temperature, tE1HQZ max is less than tE1LQX min, tE2LQZ max is less than tE2HQX min, and tGHQZ max is less than
tGLQX min for a given device and from device to device.
WE INITIATED WRITE CYCLE
A (ADDRESS)
V/S (MUX CONTROL)
E1 (CHIP ENABLE)
W (WRITE ENABLE)
D (DATA IN)
tVSVWL
tAVWL
Q (DATA OUT)
HIGH–Z
tAVAV
tAVWH
tVSVWH
tE1LWH
tWLWH
tWHAX
tWHVSX
tWLQZ
tDVWH
tWHDX
VALID DATA IN
HIGH–Z
tWHQX
tWLE1H
MOTOROLA FAST SRAM
MCM56824A
5
Share Link: 