型号 封装 在线定购
AT89S4051-24PU(查看) PDIP20
AT89S4051-24SU(查看) SOIC20


技术资料—— AT89S4051 PDF技术资料
AT89S4051 参数
AT89S4051 存储器
Flash (Kbytes) 4
RAM (Bytes) 256
AT89S4051 其他参数
Fmax (MHz) 24
Vcc (V) 2.7-5.5
I/O Pins 15
16-bit Timers 2
AT89S4051 封装类型

AT89S4051 概述

The AT89S4051 is a low-voltage, high-performance CMOS 8-bit microcontroller with 4K bytes of In-System Programmable (ISP) Flash program memory. The AT89S4051 is manufactured using Atmel's high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89S4051 is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications. Moreover, the AT89S4051 is designed to be function compatible with the AT89C4051 device, respectively.

AT89S4051 特性

  • Compatible with MCS®51 Products
  • 2.7V to 5.5V Operating Range
  • Fully Static Operation: 0 Hz to 24 MHz (x1 and x2 Modes)
  • Two-level Program Memory Lock
  • 256 x 8-bit Internal RAM
  • 15 Programmable I/O Lines
  • Two 16-bit Timer/Counters
  • Six Interrupt Sources
  • Programmable Serial UART Channel
  • Direct LED Drive Outputs
  • On-chip Analog Comparator with Selectable Interrupt
  • 8-bit PWM (Pulse-width Modulation)
  • Low Power Idle and Power-down Modes
  • Brownout Reset
  • Enhanced UART Serial Port with Framing Error Detection and Automatic Address Recognition
  • Internal Power-on Reset
  • Interrupt Recovery from Power-down Mode
  • Programmable and Fuseable x2 Clock Option
  • Four-level Enhanced Interrupt Controller
  • Power-off Flag