參數(shù)資料
型號: 89C1051
文件頁數(shù): 7/12頁
文件大?。?/td> 151K
代理商: 89C1051
AT89C1051
4-9
Chip Erase:
The entire PEROM array (1K byte) and the
two Lock Bits are erased electrically by using the proper
combination of control signals and by holding P3.2 low for
10 ms. The code array is written with all “1”s in the Chip
Erase operation and must be executed before any non-
blank memory byte can be re-programmed.
Reading the Signature Bytes:
The signature bytes are
read by the same procedure as a normal verification of
locations 000H, 001H, and 002H, except that P3.5 and
P3.7 must be pulled to a logic low. The values returned are
as follows.
(000H) = 1EH indicates manufactured by Atmel
(001H) = 11H indicates 89C1051
Programming Interface
Every code byte in the Flash array can be written and the
entire array can be erased by using the appropriate combi-
nation of control signals. The write operation cycle is self-
timed and once initiated, will automatically time itself to
completion.
Figure 3.
Programming the Flash Memory
Figure 4.
Verifying the Flash Memory
P3.1
P3.3
P3.5
P3.2
RDY/BSY
PROG
SEE FLASH
PROGRAMMING
MODES TABLE
TO INCREMENT
ADDRESS COUNTER
P1
5V
P3.4
PGM
DATA
V / V
PP
P3.7
RST
XTAL1
GND
V
CC
AT89C1051
P3.3
P3.5
P3.2
P1
5V
P3.4
PGM
DATA
V
I H
V
I H
P3.7
RST
XTAL1
GND
V
CC
AT89C1051
SEE FLASH
PROGRAMMING
MODES TABLE
相關(guān)PDF資料
PDF描述
89C124FXSZ641 Telecommunication IC
89C124FXSZ642 Telecommunication IC
8AG3.5 Fuse
8AG350 Fuse
8AG4 Fuse
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
89C1051U 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 1K Bytes Flash
89C124FXSZ641 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC
89C124FXSZ642 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC
89C1632 制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:16 Megabit (512K x 32-Bit) MCM SRAM
89C1632RPQE-20 制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:16 Megabit (512K x 32-Bit) MCM SRAM