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AT89S52-24SI PDF预览

AT89S52-24SI

更新时间: 2024-11-24 04:33:15
品牌 Logo 应用领域
爱特美尔 - ATMEL 闪存微控制器
页数 文件大小 规格书
39页 479K
描述
8-bit Microcontroller with 8K Bytes In-System Programmable Flash

AT89S52-24SI 数据手册

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Features  
Compatible with MCS®-51Products  
8K Bytes of In-System Programmable (ISP) Flash Memory  
– Endurance: 1000 Write/Erase Cycles  
4.0V to 5.5V Operating Range  
Fully Static Operation: 0 Hz to 33 MHz  
Three-level Program Memory Lock  
256 x 8-bit Internal RAM  
32 Programmable I/O Lines  
8-bit  
Three 16-bit Timer/Counters  
Eight Interrupt Sources  
Microcontroller  
with 8K Bytes  
In-System  
Programmable  
Flash  
Full Duplex UART Serial Channel  
Low-power Idle and Power-down Modes  
Interrupt Recovery from Power-down Mode  
Watchdog Timer  
Dual Data Pointer  
Power-off Flag  
Fast Programming Time  
Flexible ISP Programming (Byte and Page Mode)  
Green (Pb/Halide-free) Packaging Option  
AT89S52  
1. Description  
The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K  
bytes of in-system programmable Flash memory. The device is manufactured using  
Atmel’s high-density nonvolatile memory technology and is compatible with the indus-  
try-standard 80C51 instruction set and pinout. The on-chip Flash allows the program  
memory to be reprogrammed in-system or by a conventional nonvolatile memory pro-  
grammer. By combining a versatile 8-bit CPU with in-system programmable Flash on  
a monolithic chip, the Atmel AT89S52 is a powerful microcontroller which provides a  
highly-flexible and cost-effective solution to many embedded control applications.  
The AT89S52 provides the following standard features: 8K bytes of Flash, 256 bytes  
of RAM, 32 I/O lines, Watchdog timer, two data pointers, three 16-bit timer/counters, a  
six-vector two-level interrupt architecture, a full duplex serial port, on-chip oscillator,  
and clock circuitry. In addition, the AT89S52 is designed with static logic for operation  
down to zero frequency and supports two software selectable power saving modes.  
The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial port, and  
interrupt system to continue functioning. The Power-down mode saves the RAM con-  
tents but freezes the oscillator, disabling all other chip functions until the next interrupt  
or hardware reset.  
1919C–MICRO–3/05  

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