欢迎访问ic37.com |
会员登录 免费注册
发布采购

AT89S53-24JI 参数 Datasheet PDF下载

AT89S53-24JI图片预览
型号: AT89S53-24JI
PDF下载: 下载PDF文件 查看货源
内容描述: 8位微控制器,带有12K字节的闪存 [8-bit Microcontroller with 12K Bytes Flash]
分类和应用: 闪存微控制器
文件页数/大小: 33 页 / 449 K
品牌: ATMEL [ ATMEL CORPORATION ]
 浏览型号AT89S53-24JI的Datasheet PDF文件第2页浏览型号AT89S53-24JI的Datasheet PDF文件第3页浏览型号AT89S53-24JI的Datasheet PDF文件第4页浏览型号AT89S53-24JI的Datasheet PDF文件第5页浏览型号AT89S53-24JI的Datasheet PDF文件第6页浏览型号AT89S53-24JI的Datasheet PDF文件第7页浏览型号AT89S53-24JI的Datasheet PDF文件第8页浏览型号AT89S53-24JI的Datasheet PDF文件第9页  
Features
Compatible with MCS-51
Products
12K Bytes of In-System Reprogrammable Downloadable Flash Memory
– SPI Serial Interface for Program Downloading
– Endurance: 1,000 Write/Erase Cycles
4V to 6V Operating Range
Fully Static Operation: 0 Hz to 24 MHz
Three-level Program Memory Lock
256 x 8-bit Internal RAM
32 Programmable I/O Lines
Three 16-bit Timer/Counters
Nine Interrupt Sources
Programmable UART Serial Channel
SPI Serial Interface
Low-power Idle and Power-down Modes
Interrupt Recovery From Power-down
Programmable Watchdog Timer
Dual Data Pointer
Power-off Flag
8-bit
Microcontroller
with 12K Bytes
Flash
AT89S53
Description
The AT89S53 is a low-power, high-performance CMOS 8-bit microcomputer with 12K
bytes of downloadable Flash programmable and erasable read only 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 downloadable Flash allows the program memory to be reprogrammed in-system
through an SPI serial interface or by a conventional nonvolatile memory programmer.
By combining a versatile 8-bit CPU with downloadable Flash on a monolithic chip, the
Atmel AT89S53 is a powerful microcomputer which provides a highly-flexible and
cost-effective solution to many embedded control applications.
The AT89S53 provides the following standard features: 12K bytes of downloadable
Flash, 256 bytes of RAM, 32 I/O lines, programmable watchdog timer, two Data Point-
ers, 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 AT89S53 is
designed with static logic for operation down to zero frequency and supports two soft-
ware 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.
The downloadable Flash can change a single byte at a time and is accessible through
the SPI serial interface. Holding RESET active forces the SPI bus into a serial pro-
gramming interface and allows the program memory to be written to or read from
unless Lock Bit 2 has been activated.
Rev. 0787D–06/00
1