参数资料
型号: W28J800BT90L
元件分类: EEPROM
英文描述: EEPROM
中文描述: EEPROM的
文件页数: 5/51页
文件大小: 1468K
代理商: W28J800BT90L
W28J800B/T
Overwriting a "0" to a bit already holding a data "0" may render this bit un-erasable. In order to avoid
this potential "stuck bit" failure, when re-programming (changing data from "1" to "0") the following
should be followed:
Program "0" for the bit in which you want to change data from "1" to "0".
Program "1" for the bit which is already holding a data "0". (Note: Since only an erase process
can change the data from "0" to "1", programming "1" to a bit holding a data "0" will not
change the data).
For example, changing data from "10111101" to "10111100" requires "11111110" programming.
4. BLOCK DIAGRAM
Output Buffer
DQ0 -DQ15
Input Buffer
Identifier
MOutput
Status
RData
CUser
Interface
I/O Logic
CoData
Y-Gating
Input
ALatch
Address
DeY
DeX
Write
Voltage Switch
32x 15
VDD
#BYTE
#CE
#WE
#OE
#RESET
#WP
RY/#BY
VPP
VDD
VSS
A1-A18
P
P
P
P
P
P
B
B
M
M
O
M
M
Figure 1. Block Diagram
Publication Release Date: October 31, 2002
- 5 -
Revision A3
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