參數(shù)資料
型號(hào)： 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(chǔ)器
文件頁(yè)數(shù)： 9/20頁(yè)
文件大小： 124K
代理商： HN27C4000G-15
Fast High-Reliability Page
Programming
This device can be applied the high performance
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.
Page Program Set
Apply 12 V to
OE
pin after applying 12.5 V to V
PP
to set a page program mode.
The device operates in a page program mode until
reset.
Page Program Reset
Set V
PP
to V
CC
level or less to reset a page
program mode.
9
HN27C4000G Series
START
SET PAGE PROG LATCH MODE
V = 12.5 ± 0.3 V V = 6.25 ± 0.25 V
OE
Address = 0
n = 0
Latch
Address + 1 Address
Latch
Address + 1 Address
Address + 1 Address
Latch
Latch
n + 1 n
SET PAGE PROG./VERIFY MODE
V = 12.5 ± 0.3 V V = 6.25 ± 0.25 V
Address + 1 Address
NOGO
GO
YES
NOGO
NO
NO
VERIFY
END
FAIL
READ
all address
n = 10
LAST
address
SET READ MODE
V = 5.0 ± 0.5 V V = V
GO
Program t = 50 s ± 5%
YES
Fast High-Reliability Page Programming Flowchart
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