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參數資料
型號: MCM6229BBEJ17
廠商: MOTOROLA INC
元件分類: DRAM
英文描述: Axial Fan; Current Type:DC; Supply Voltage:12VDC; Series:Muffin; External Height:120mm; External Width:120mm; External Depth:38mm; Fan Flow Rate:110CFM; Noise Rating:49.5dBA; Bearing Style:Ball; Depth:38mm; Height:120mm; RoHS Compliant: Yes
中文描述: 256K X 4 STANDARD SRAM, 17 ns, PDSO28
封裝: 0.300 INCH, SOJ-28
文件頁數: 5/8頁
文件大小: 125K
代理商: MCM6229BBEJ17
MCM6229BB
5
MOTOROLA FAST SRAM
WRITE CYCLE 1
(W Controlled, See Notes 1, 2, 3, and 4)
6229BB–15
6229BB–17
6229BB–20
6229BB–25
6229BB–35
Parameter
Symbol
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Unit
Notes
Write Cycle Time
tAVAV
tAVWL
tAVWH
tWLWH,
tWLEH
15
17
20
25
35
ns
4
Address Setup Time
0
0
0
0
0
ns
Address Valid to End of Write
12
14
15
17
20
ns
Write Pulse Width
12
14
15
17
20
ns
Data Valid to End of Write
tDVWH
tWHDX
tWLQZ
tWHQX
tWHAX
7
8
9
10
11
ns
Data Hold TIme
0
0
0
0
0
ns
Write Low to Data High–Z
6
7
7
8
8
ns
5, 6, 7
Write High to Output Active
5
5
5
5
5
ns
5, 6, 7
Write Recovery Time
0
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 con-
tention 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 timings are referenced from the last valid address to the first transitioning address.
5. Transition is measured
±
500 mV from steady–state voltage with load of Figure 1b.
6. This parameter is sampled and not 100% tested.
7. At any given voltage and temperature, tWLQZ max is less than tWHQX min both for a given device and from device to device.
WRITE CYCLE 1
(W Controlled See Notes 1, 2, 3, and 4)
tAVWH
tWLQZ
tWHAX
tDVWH
A (ADDRESS)
E (CHIP ENABLE)
W (WRITE ENABLE)
D (DATA IN)
Q (DATA OUT)
DATA VALID
HIGH–Z
HIGH–Z
tAVAV
tAVWL
tWLEH
tWHDX
tWLWH
tWHQX
相關PDF資料
PDF描述
MCM6229BBEJ17R2 FAN 24VDC 120X38 MS24B3
MCM6229BBXJ35 256K x 4 Bit Static Random Access Memory
MCM6229BBXJ35R2 256K x 4 Bit Static Random Access Memory
MCM6229BBXJ20 256K x 4 Bit Static Random Access Memory
MCM6229BBXJ20R2 256K x 4 Bit Static Random Access Memory
相關代理商/技術參數
參數描述
MCM6229BBEJ17R2 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:256K x 4 Bit Static Random Access Memory
MCM6229BBEJ20 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:256K x 4 Bit Static Random Access Memory
MCM6229BBEJ20R2 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:256K x 4 Bit Static Random Access Memory
MCM6229BBEJ25 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:256K x 4 Bit Static Random Access Memory
MCM6229BBEJ25R2 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:256K x 4 Bit Static Random Access Memory
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