参数资料
型号: MR256A08BCYS35R
厂商: Everspin Technologies Inc
文件页数: 16/24页
文件大小: 0K
描述: IC MRAM 256KB 35NS 44TSOP
标准包装: 1,000
格式 - 存储器: RAM
存储器类型: MRAM(磁阻 RAM)
存储容量: 256K (32K x 8)
速度: 35ns
接口: 并联
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 85°C
封装/外壳: 44-TSOP(0.400",10.16mm 宽)
供应商设备封装: 44-TSOP II
包装: 带卷 (TR)
MR256A08B
Table 11 – Write Cycle Timing 2 (E Controlled)
Parameter 1
Write cycle time 2
Address set-up time
Address valid to end of write ( G high)
Address valid to end of write ( G low)
Enable to end of write ( G high)
Enable to end of write ( G low) 3
Data valid to end of write
Data hold time
Write recovery time
Symbol
tAVAV
tAVEL
tAVEH
tAVEH
tELEH
tELWH
tELEH
tELWH
tDVEH
tEHDX
tEHAX
Min
35
0
18
20
15
15
10
0
12
Max
-
-
-
-
-
-
-
-
-
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes:
1.
2.
3.
All writes occur during the overlap of E low and W low. 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 or E has been brought high, the signal must remain
in steady-state high for a minimum of 2 ns. The minimum time between E being asserted low in one cycle to E being as-
serted 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.
If E goes low at the same time or after W goes low, the output will remain in a high-impedance state. If E goes high at the
same time or before W goes high, the output will remain in a high-impedance state.
Copyright ? 2013 Everspin Technologies
16
MR256A08B Rev. 6, 10/2013
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