资料下载
AT89S52英文数据手册
赵工
分享资料个
Features • Compatible with MCS-51® Products • 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 • Three 16-bit Timer/Counters • Eight Interrupt Sources • 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 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 industry-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 programmer. 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 contents but freezes the oscillator， disabling all other chip functions until the next interrupt or hardware reset
声明：本文内容及配图由入驻作者撰写或者入驻合作网站授权转载。文章观点仅代表作者本人，不代表电子发烧友网立场。文章及其配图仅供工程师学习之用，如有内容侵权或者其他违规问题，请联系本站处理。 举报投诉
- 相关下载
- 相关文章
