欢迎访问ic37.com |
会员登录 免费注册
发布采购

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 ]
 浏览型号UPD43256BCZ-70LL的Datasheet PDF文件第6页浏览型号UPD43256BCZ-70LL的Datasheet PDF文件第7页浏览型号UPD43256BCZ-70LL的Datasheet PDF文件第8页浏览型号UPD43256BCZ-70LL的Datasheet PDF文件第9页浏览型号UPD43256BCZ-70LL的Datasheet PDF文件第11页浏览型号UPD43256BCZ-70LL的Datasheet PDF文件第12页浏览型号UPD43256BCZ-70LL的Datasheet PDF文件第13页浏览型号UPD43256BCZ-70LL的Datasheet PDF文件第14页  
µPD43256B  
Read Cycle (1/2)  
VCC 4.5 V  
µPD43256B-85  
Parameter  
Symbol  
µPD43256B-70  
µPD43256B-A85/A10/A12  
µPD43256B-B10/B12/B15  
Unit Condition  
MIN.  
MAX.  
MIN.  
85  
MAX.  
Read cycle time  
tRC  
tAA  
70  
ns  
Address access time  
70  
70  
35  
85  
85  
40  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
Note 1  
Note 2  
CS access time  
tACS  
tOE  
OE access time  
Output hold from address change  
CS to output in low impedance  
OE to output in low impedance  
CS to output in high impedance  
OE to output in high impedance  
tOH  
10  
10  
5
10  
10  
5
tCLZ  
tOLZ  
tCHZ  
tOHZ  
30  
30  
30  
30  
Notes 1. See the output load shown in Figure 1 except for µPD43256B-A, 43256B-B.  
2. See the output load shown in Figure 2 except for µPD43256B-A, 43256B-B.  
Remark These AC characteristics are in common regardless of package types and L, LL versions.  
Read Cycle (2/2)  
VCC 3.0 V  
VCC 2.7 V  
Con-  
Parameter  
Symbol µPD43256B-A85 µPD43256B-A10 µPD43256B-A12 µPD43256B-B10 µPD43256B-B12 µPD43256B-B15 Unit  
dition  
MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX.  
Read cycle time  
tRC  
tAA  
85  
100  
120  
100  
120  
150  
ns  
Address access time  
85  
85  
50  
100  
100  
60  
120  
120  
60  
100  
100  
60  
120  
120  
60  
150 ns Note  
150 ns  
70 ns  
ns  
CS access time  
tACS  
tOE  
OE access time  
Output hold from address change  
CS to output in low impedance  
OE to output in low impedance  
CS to output in high impedance  
OE to output in high impedance  
tOH  
10  
10  
5
10  
10  
5
10  
10  
5
10  
10  
5
10  
10  
5
10  
10  
5
tCLZ  
tOLZ  
tCHZ  
tOHZ  
ns  
ns  
35  
35  
35  
35  
40  
40  
35  
35  
40  
40  
50 ns  
50 ns  
Note Loading condition is 1TTL + 100 pF.  
Remark These AC characteristics are in common regardless of package types and L, LL versions.  
10  
 复制成功!