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參數(shù)資料
| 型號： | MR2A16A |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | 256K x 16-Bit 3.3-V Asynchronous Magnetoresistive RAM(256K x 16-Bit 3.3V異步磁阻RAM) |
| 中文描述： | 256K x 16位的3.3V異步磁阻隨機存取內存（256K x 16位3.3伏異步磁阻RAM）的 |
| 文件頁數(shù)： | 14/22頁 |
| 文件大?。?/td> | 243K |
| 代理商： | MR2A16A |
MR2A16A Data Sheet, Rev. 6
14
Freescale Semiconductor
Timing Specifications
Table 12. Write Cycle Timing 3 (LB/UB Controlled)
1, 2, 3, 4, 5, 6
Parameter
Symbol
t
AVAV
t
AVBL
t
AVBH
t
AVBH
t
BLEH
t
BLWH
t
BLEH
t
BLWH
t
DVBH
t
BHDX
t
BHAX
Min
35
0
18
20
Max
—
—
—
—
Unit
ns
ns
ns
ns
Write cycle time
7
Address set-up time
Address valid to end of write (G high)
Address valid to end of write (G low)
Byte pulse width (G high)
15
—
ns
Byte pulse width (G low)
15
—
ns
Data valid to end of write
Data hold time
Write recovery time
10
0
12
—
—
—
ns
ns
ns
NOTES:
1
2
A write occurs during the overlap of E low and W low.
Due to product sensitivities to noise, power supplies must be properly grounded and decoupled and
bus contention conditions must be minimized or eliminated during read and write cycles.
If G goes low at the same time or after W goes low, the output will remain in a high-impedance state.
After W, E, or UB/LB has been brought high, the signal must remain in steady-state high for a minimum
of 2 ns.
If both byte control signals are asserted, the two signals must have no more than 2 ns skew between
them.
The minimum time between E being asserted low in one cycle to E being asserted low in a subsequent
cycle is the same as the minimum cycle time allowed for the device.
All write cycle timings are referenced from the last valid address to the first transition address.
3
4
5
6
7
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MR2A16A_1 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:256K x 16-Bit 3.3-V Asynchronous Magnetoresistive RAM |
| MR2A16ACMA35 | 功能描述:NVRAM 4Mb 3.3V 35ns 256Kx16 Prallel MRAM RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線寬度:8 bit 存儲容量:1024 Kbit 組織:128 K x 8 接口類型:Parallel 訪問時間:70 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 工作電流:85 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 封裝 / 箱體:EDIP 封裝:Tube |
| MR2A16ACMA35R | 功能描述:NVRAM 4Mb 3.3V 35ns 256Kx16 Prallel MRAM RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線寬度:8 bit 存儲容量:1024 Kbit 組織:128 K x 8 接口類型:Parallel 訪問時間:70 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 工作電流:85 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 封裝 / 箱體:EDIP 封裝:Tube |
| MR2A16ACTS35C | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:256K x 16-Bit 3.3-V Asynchronous Magnetoresistive RAM |
| MR2A16ACYS35 | 功能描述:NVRAM 4Mb 3.3V 35ns 256Kx16 Prallel MRAM RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線寬度:8 bit 存儲容量:1024 Kbit 組織:128 K x 8 接口類型:Parallel 訪問時間:70 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 工作電流:85 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 封裝 / 箱體:EDIP 封裝:Tube |
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