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參數(shù)資料
| 型號： | HN27C4000G-15 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 524288-Word ?8-Bit/262144-Word X 16-Bit CMOS UV Erasable and Programmable ROM |
| 中文描述： | 524288詞？8-Bit/262144-Word x 16位的CMOS紫外線可擦除只讀存儲器 |
| 文件頁數(shù)： | 15/20頁 |
| 文件大小： | 124K |
| 代理商： | HN27C4000G-15 |
Fast High-Reliability Programming Timing Waveform
15
HN27C4000G Series
Program
Program Verify
Address
Data
Data In Stable
Data Out Valid
t
AS
t
DS
t
VPS
t
VCS
t
DH
t
DF
t
AH
t
PW
t
OES
t
OE
V
PP
V
CC
V
PP
V
CC
V
CC
V +1.25
CE
OE
Optional Page Programming
This device can be applied the optional page
programming algorithm shown in the following
flowchart. This algorithm allows to obtain faster
programming time without any voltage stress to the
device nor deterioration in reliability of
programmed data.
This programming algorithm is the combination of
page programming and word verify. It can avoid
the increase of programming verify time when a
programmer with slow machine cycle is used, and
shorten the total programming time.
Regarding the timing specifications for page
programming and word verify, please refer to the
specifications for fast high-reliability page
programming
and
programming.
fast
high-reliability
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