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參數(shù)資料
| 型號： | UPD43257B |
| 廠商： | NEC Corp. |
| 英文描述： | 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT |
| 中文描述： | 256K位CMOS靜態(tài)RAM 32K的詞8位 |
| 文件頁數(shù)： | 8/20頁 |
| 文件大?。?/td> | 157K |
| 代理商： | UPD43257B |
Data Sheet M10693EJ7V0DS00
8
μ
PD43257B
AC Characteristics (Recommended Operating Conditions Unless Otherwise Noted)
AC Test Conditions
[
μ
PD43257B-70L,
μ
PD43257B-85L,
μ
PD43257B-70LL,
μ
PD43257B-85LL ]
Input Waveform (Rise and Fall Time
≤
5 ns)
Test points
0.8 V
2.2 V
1.5 V
1.5 V
Output Waveform
Test points
1.5 V
1.5 V
Output Load
AC characteristics with notes should be measured with the output load shown in
Figure 1
and
Figure 2
.
Figure 1
Figure 2
(t
AA
, t
CO1
, t
CO2
, t
OH
)
(t
LZ1
, t
LZ2
, t
HZ1
, t
HZ2
, t
WHZ
, t
OW
)
+5 V
I/O (Output)
1.8 k
5 pF
C
L
990
+5 V
I/O (Output)
1.8 k
100 pF
C
L
990
Remark
C
L
includes capacitance of the probe and jig, and stray capacitance.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPD43257BCZ-85L | 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT |
| UPD43257BCZ-85LL | 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT |
| UPD43257BGU-70L | 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT |
| UPD43257BGU-70LL | 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT |
| UPD43257BGU-85L | 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT |
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