AT89S2051-24PU

8051 体系结构闪存 ISP（系统内可编程）微控制器，AtmelAtmel 可提供闪存 8051 微控制器，具有系统内可编程 ISP，可在并行或串行模式中采用适当的软件进行编程。### 8051 体系结构微控制器，AtmelAtmel 的 8 位微控制器 MCU 基于 8051 指令集，结合久经考验的技术和最新特征及功能，所有均具有高级闪存。### 设备系列单周期芯 闪存 ISP（系统内可编程） 闪存（可重新编程） CAN 网络 MCU USB MCU ROMless

The is a 8-bit low-voltage High-performance CMOS Microcontroller with 2kB of In-System Programmable ISP flash program memory. The AT89S2051/S4051 device is manufactured using Atmel"s high-density non-volatile 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 AT89S2051 is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications. Moreover, the AT89S2051 is designed to be function compatible with the AT89C2051/C4051 devices, respectively. The AT89S2051 provides the following standard features 2K/4kB of flash, 256 bytes of RAM, 15 I/O lines, two 16-bit timer/counters, a six-vector, four level interrupt architecture, a full duplex enhanced serial port, a precision analogue comparator, on-chip and clock circuitry.

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Compatible with MCS®-51 products

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2K/4kB In-System Programmable ISP flash program memory

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Two-level program memory lock

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256 x 8-bit Internal RAM

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15 Programmable I/O lines

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Two 16-bit timer/counters

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Six interrupt sources

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Programmable serial UART channel

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Direct LED drive outputs

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On-chip analogue comparator with selectable interrupt

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8-bit PWM Pulse-width modulation

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Low power idle and power-down modes

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Brownout reset

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Enhanced UART serial port with framing error detection and automatic

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Address recognition

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Internal power-on reset

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Interrupt recovery from power-down mode

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Programmable and fuse-able x2 clock option

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Four-level enhanced interrupt controller

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Power-off flag