參數(shù)資料
型號: T89C51RD2-SMSIL
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 0 to 40 MHz Flash Programmable 8-bit Microcontroller
中文描述: 8-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQCC68
封裝: PLASTIC, LCC-68
文件頁數(shù): 76/104頁
文件大?。?/td> 798K
代理商: T89C51RD2-SMSIL
76
T89C51RD2
4243G
8051
05/03
Set-up modes configuration
Control and program signals must be held at the levels indicated in the two following
tables.
Mode
Name
Mode
Rst
Psen
Ale
_ _
|_|
EA
P2.6
P2.7
P3.6
P3.7
P0[7..0]
PELCK
Program or Erase Lock.
Disable the Erasure or Programming access
1
0
_ _
|_|
1
1
0
1
0
xx
PEULCK
Program or Erase UnLock.
Enable the Erasure or Programming access
1
0
Note 2
1
1
0
1
0
55-AA
PGMC
Write Code Data (byte)
or write Page
Always precedeed by PGML
1
0
_ _
|_|
Internally
timed
1
0
1
1
1
xx
PGML
Memory Page Load
(up to 128 bytes)
1
0
Note 1
1
0
1
0
1
Din
PGMV
Read Code Data (byte)
1
0
1
1
0
_ _
|_|
1
1
Dout
VSB
Read Security Byte (=HSB)
1
0
1
1
0
_ _
|_|
0
1
Dout
PGMS
Write Security Byte (Note 3)
(security byte = HSB)
1
0
10 ms
1
1
1
0
0
Din
CERR
Chip Erase User + XAF
1
0
100 ms
1
1
0
0
0
xx
PGXC
Write Byte or Page in Extra Memory (XAF)
Always precedeed by PGXL
1
0
_ _
|_|
Internally
timed
1
1
1
0
1
xx
PGXL
Memory Page Load XAF
(up to 128 bytes)
1
0
Note 1
1
1
1
0
1
Din
TMS
Read Signature bytes
30h (Manufacturer code)
31h (Device ID #1)
60h (Device ID #2)
61h (Device ID #3)
1
0
1
1
0
_ _
|_|
0
0
Dout =
58h
D7h
FCh
FFh
RXAF
Read Extra Memory (XAF)
1
0
1
1
0
_ _
|_|
0
0
Dout
相關(guān)PDF資料
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