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M34E02-F 数据表(PDF) 11 Page - STMicroelectronics

部件名 M34E02-F
功能描述  Backward compatible with the M34C02
PDF  36 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M34E02-F 数据表(HTML) 11 Page - STMicroelectronics

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M34E02-F
Signal description
Table 2. Device select code
Chip Enable
signals
Device type identifier
Chip Enable bits RW
b7(1)
1. The most significant bit, b7, is sent first.
b6
b5
b4
b3
b2
b1
b0
Memory area select
code (two arrays)(2)
2. E0, E1 and E2 are compared against the respective external pins on the memory device.
E2
E1
E0
1010
E2
E1
E0
RW
Set write protection
(SWP)
VSS VSS VHV(3)
3. VHV is defined in Table 13.
0110
00
1
0
Clear write protection
(CWP)
VSS VCC VHV(3)
01
1
0
Permanently set write
protection (PSWP)(2)
E2
E1
E0
E2
E1
E0
0
Read SWP
VSS VSS VHV(3)
00
1
1
Read CWP
VSS VCC VHV(3)
01
1
1
Read PSWP(2)
E2
E1
E0
E2
E1
E0
1



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