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AT89C51-24AC Datasheet(数据表) 1 Page - ATMEL Corporation

部件型号  AT89C51-24AC
说明  8-bit Microcontroller with 4K Bytes Flash
下载  17 Pages
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制造商  ATMEL [ATMEL Corporation]
网页  http://www.atmel.com
标志 ATMEL - ATMEL Corporation

AT89C51-24AC Datasheet(HTML) 1 Page - ATMEL Corporation

  AT89C51-24AC 数据表 HTML 1Page - ATMEL Corporation AT89C51-24AC 数据表 HTML 2Page - ATMEL Corporation AT89C51-24AC 数据表 HTML 3Page - ATMEL Corporation AT89C51-24AC 数据表 HTML 4Page - ATMEL Corporation AT89C51-24AC 数据表 HTML 5Page - ATMEL Corporation AT89C51-24AC 数据表 HTML 6Page - ATMEL Corporation AT89C51-24AC 数据表 HTML 7Page - ATMEL Corporation AT89C51-24AC 数据表 HTML 8Page - ATMEL Corporation AT89C51-24AC 数据表 HTML 9Page - ATMEL Corporation Next Button
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1
PQFP/TQFP
1
2
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7
8
9
10
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33
32
31
30
29
28
27
26
25
24
23
P1.5
P1.6
P1.7
RST
(RXD) P3.0
NC
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
(T1) P3.5
PO.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
EA/VPP
NC
ALE/PROG
PSEN
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
Features
Compatible with MCS-51Products
4K Bytes of In-System Reprogrammable Flash Memory
– Endurance: 1,000 Write/Erase Cycles
Fully Static Operation: 0 Hz to 24 MHz
Three-level Program Memory Lock
128 x 8-bit Internal RAM
32 Programmable I/O Lines
Two 16-bit Timer/Counters
Six Interrupt Sources
Programmable Serial Channel
Low-power Idle and Power-down Modes
Description
The AT89C51 is a low-power, high-performance CMOS 8-bit microcomputer with 4K
bytes of Flash programmable and erasable read only memory (PEROM). The device
is manufactured using Atmel’s high-density nonvolatile memory technology and is
compatible with the industry-standard MCS-51 instruction set and pinout. The on-chip
Flash allows the program memory to be reprogrammed in-system or by a conven-
tional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash
on a monolithic chip, the Atmel AT89C51 is a powerful microcomputer which provides
a highly-flexible and cost-effective solution to many embedded control applications.
PDIP
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P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
RST
(RXD) P3.0
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
(T1) P3.5
(WR) P3.6
(RD) P3.7
XTAL2
XTAL1
GND
VCC
P0.0 (AD0)
P0.1 (AD1)
P0.2 (AD2)
P0.3 (AD3)
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
EA/VPP
ALE/PROG
PSEN
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
P2.4 (A12)
P2.3 (A11)
P2.2 (A10)
P2.1 (A9)
P2.0 (A8)
Rev. 0265G–02/00
8-bit
Microcontroller
with 4K Bytes
Flash
AT89C51
Not Recommended
for New Designs.
Use AT89S51.
Pin Configurations
PLCC
7
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14
15
16
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39
38
37
36
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34
33
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31
30
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P1.5
P1.6
P1.7
RST
(RXD) P3.0
NC
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
(T1) P3.5
PO.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
EA/VPP
NC
ALE/PROG
PSEN
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)




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