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UPD43256BCZ-70LL 参数 Datasheet PDF下载

UPD43256BCZ-70LL图片预览
型号: UPD43256BCZ-70LL
PDF下载: 下载PDF文件 查看货源
内容描述: 256K - BIT的CMOS静态RAM的32K字×8位 [256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT]
分类和应用: 存储内存集成电路静态存储器光电二极管
文件页数/大小: 24 页 / 174 K
品牌: NEC [ NEC ]
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µPD43256B  
AC Characteristics (Recommended operating conditions unless otherwise noted)  
AC Test Conditions  
Input waveform (Rise/fall time 5 ns)  
Input pulse levels  
0.8 V to 2.2 V: µPD43256B-L, 43256B-LL  
0.5 V to 2.2 V: µPD43256B-A, 43256B-B  
Test points  
1.5 V  
1.5 V  
Output waveform  
Test points  
1.5 V  
1.5 V  
Output load  
µPD43256B-A, 43256B-B : 1TTL + 100 pF  
µPD43256B-L, 43256B-LL:  
AC characteristics with notes should be measured with the output load shown in  
Figure 1 and Figure 2.  
Figure 1  
Figure 2  
(For tAA, tACS, tOE, tOH)  
(For tCHZ, tCLZ, tOHZ, tOLZ, tWHZ, tOW)  
+5 V  
+5 V  
1.8 kΩ  
1.8 kΩ  
I/O (Output)  
I/O (Output)  
990 Ω  
990 Ω  
100 pF  
5 pF  
CL  
C
L
Remark CL includes capacitances of the probe and jig, and stray capacitances.  
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