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參數(shù)資料
| 型號： | HM62V8512CI |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Wide Temperature Range Version4 M SRAM (512-kword x 8-bit) |
| 中文描述： | 寬溫版本4 M的SRAM（512 - KWord的× 8位） |
| 文件頁數(shù)： | 11/13頁 |
| 文件大小： | 57K |
| 代理商： | HM62V8512CI |
HM62V8512CI Series
11
Low V
CC
Data Retention Characteristics
(Ta = –40 to +85°C)
Parameter
Symbol
Min
Typ
Max
Unit
Test conditions*
2
CS
≥
V
CC
– 0.2 V, Vin
≥
0 V
V
CC
= 3.0 V, Vin
≥
0 V
CS
≥
V
CC
– 0.2 V
See retention waveform
V
CC
for data retention
Data retention current
V
DR
I
CCDR
2
—
—
V
—
0.8*
3
20*
1
μA
Chip deselect to data retention time
t
CDR
t
R
0
—
—
ns
Operation recovery time
Notes: 1. For L-version and 10 μA (max.) at Ta = –40 to +40°C.
2.
CS
controls address buffer,
WE
buffer,
OE
buffer, and Din buffer. In data retention mode, Vin
levels (address,
WE
,
OE
, I/O) can be in the high impedance state.
3. Typical values are at V
CC
= 3.0 V, Ta = +25°C and specified loading, and not guaranteed.
4. t
RC
= read cycle time.
t
RC
*
4
—
—
ns
Low V
CC
Data Retention Timing Waveform
(
CS
Controlled)
V
CC
2.7 V
2.4 V
V
DR
0 V
CS
t
CDR
t
R
CS
≥
V
CC
– 0.2 V
Data retention mode
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