Image AT89C51-24PI
型号: AT89C51-24PI
厂商: Atmel Atmel
分类: 集成电路嵌入式 - 微控制器
描述: IC mcu 8bit 4kb flash 40dip
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AT89C51-24PI的详细信息

Datasheets:
AT89C51:
Product Photos:
40-DIP Pkg:
40-DIP:
Standard Package : 9
Category: Integrated Circuits (ICs)
Family: Embedded - Microcontrollers
Series: 89C
Packaging : Tube
Core Processor: 80C51
Core Size: 8-Bit
Speed: 24MHz
Connectivity: UART/USART
Peripherals: -
Number of I/O: 32
Program Memory Size: 4KB (4K x 8)
Program Memory Type: FLASH
EEPROM Size: -
RAM Size: 128 x 8
Voltage - Supply (Vcc/Vdd): 4 V ~ 6 V
Data Converters: -
Oscillator Type: Internal
Operating Temperature: -40°C ~ 85°C
Package / Case: 40-DIP (0.600", 15.24mm)
Supplier Device Package: 40-PDIP
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  
8-bit  
Microcontroller  
with 4K Bytes  
Flash  
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.  
AT89C51  
Not Recommended  
for New Designs.  
Use AT89S51.  
PDIP  
Pin Configurations  
P1.0  
P1.1  
P1.2  
P1.3  
P1.4  
P1.5  
P1.6  
P1.7  
RST  
1
2
3
4
5
6
7
8
9
40 VCC  
39 P0.0 (AD0)  
38 P0.1 (AD1)  
37 P0.2 (AD2)  
36 P0.3 (AD3)  
35 P0.4 (AD4)  
34 P0.5 (AD5)  
33 P0.6 (AD6)  
32 P0.7 (AD7)  
31 EA/VPP  
(RXD) P3.0 10  
(TXD) P3.1 11  
(INT0) P3.2 12  
(INT1) P3.3 13  
(T0) P3.4 14  
(T1) P3.5 15  
(WR) P3.6 16  
(RD) P3.7 17  
XTAL2 18  
PQFP/TQFP  
30 ALE/PROG  
29 PSEN  
28 P2.7 (A15)  
27 P2.6 (A14)  
26 P2.5 (A13)  
25 P2.4 (A12)  
24 P2.3 (A11)  
23 P2.2 (A10)  
22 P2.1 (A9)  
21 P2.0 (A8)  
XTAL1 19  
P1.5  
P1.6  
1
2
3
4
5
6
7
8
9
33 PO.4 (AD4)  
32 P0.5 (AD5)  
31 P0.6 (AD6)  
30 P0.7 (AD7)  
29 EA/VPP  
GND 20  
P1.7  
PLCC  
RST  
(RXD) P3.0  
NC  
28 NC  
(TXD) P3.1  
(INT0) P3.2  
(INT1) P3.3  
27 ALE/PROG  
26 PSEN  
25 P2.7 (A15)  
24 P2.6 (A14)  
23 P2.5 (A13)  
(T0) P3.4 10  
(T1) P3.5 11  
P1.5  
P1.6  
P1.7  
7
8
9
39 PO.4 (AD4)  
38 P0.5 (AD5)  
37 P0.6 (AD6)  
36 P0.7 (AD7)  
35 EA/VPP  
RST 10  
(RXD) P3.0 11  
NC 12  
34 NC  
(TXD) P3.1 13  
(INT0) P3.2 14  
(INT1) P3.3 15  
(T0) P3.4 16  
(T1) P3.5 17  
33 ALE/PROG  
32 PSEN  
31 P2.7 (A15)  
30 P2.6 (A14)  
29 P2.5 (A13)  
Rev. 0265G–02/00