AT89C55WD
| Key | Value |
|---|
| Flash (kBytes): | 20 kBytes |
|---|
| Max. Operating Freq. (MHz): | 24 MHz |
|---|
| CPU: | 8051-12C |
|---|
| Max I/O Pins: | 32 |
|---|
| UART: | 1 |
|---|
| Pin Count: | 44 |
|---|
| SRAM (kBytes): | 0.25 |
|---|
| Operating Voltage (Vcc): | 4.0 to 6.0 |
|---|
| Timers: | 3 |
|---|
| Watchdog: | Yes |
|---|
Low-power, high-performance CMOS 8-bit microcontroller with 20KB of flash programmable ROM and 256 bytes of RAM. The device is manufactured using Atmel high-density nonvolatile memory technology and is compatible with the industry standard 80C51 and 80C52 instruction set and pinout. On-chip flash allows the program memory to be user programmed by a conventional nonvolatile memory programmer.
This versatile 8-bit CPU with flash is a highly flexible and cost-effective solution for many embedded control applications.
Ordering Code 订购信息| 订购码 | 封装 | 操作范围 | 载体类型 |
|---|
| AT89C55WD-24JU | PLCC 44J 44 | Industrial (A) (-40°C to 85°C) | |
| AT89C55WD-24PU | PDIP 40P6 40 | Industrial (A) (-40°C to 85°C) | |
| AT89C55WD-24AU | TQFP 44A 44 | Industrial (A) (-40°C to 85°C) | |
DataSheet 数据手册
Application Note
- Analyzing the Behavior of an Oscillator and Ensuring Good Start-up(文件大小: 252537, 16 页数, 更新时间: 07/2004)
- Atmel AT06015: Production Programming of Atmel Microcontrollers(文件大小: 420KB, 10 页数, 修订版 D, 更新时间: 10/2016)
- Design Guide for Atmel 8051 Standard Devices(文件大小: 245406, 21 页数, 修订版 A, 更新时间: 11/2007)
- Migrating from AT89C2051/C4051 to AT89LP2052/LP4052(文件大小: 153825, 8 页数, 修订版 B, 更新时间: 05/2008)
- Migrating from AT89C2051/C4051 to AT89S2051/S4051(文件大小: 84966, 4 页数, 修订版 A, 更新时间: 05/2005)
- Migrating from AT89C51/C52 to AT89S51/S52(文件大小: 43566, 3 页数, 修订版 A, 更新时间: 06/2004)
- Migration from OTP 8051 to Flash 8051(文件大小: 212861, 9 页数, 修订版 B, 更新时间: 12/2002)
- Program Examples for 8051 Timers(文件大小: 680364, 88 页数, 修订版 A, 更新时间: 06/2004)
- Program Examples for 8051 UART(文件大小: 194924, 26 页数, 修订版 A, 更新时间: 06/2004)
- A Digital Thermometer Using the AT89LP2052 MCU(文件大小: 2545, 5 页数, 修订版 B, 更新时间: 06/2011)
A Digital Thermometer Using the AT89LP2052 MCU - Analog-to-Digital Conversion Utilizing AT89LP MCU without ADC(文件大小: 9177, 10 页数, 修订版 B, 更新时间: 06/2011)
Analog-to-Digital Conversion Utilizing AT89LP MCU without ADC - AT89C51 In-Circuit Programming(11 页数, 更新时间: 09/1997)
AT89C51 In-Circuit Programming - Controlling FPGA Configuration with a Flash-based Microcontroller(7 页数, 修订版 B, 更新时间: 12/1997)
Controlling FPGA Configuration with a Flash-based Microcontroller - Designing Boards with Atmel AT89C51/52, AT89C1051 for writing Flash at In-Circuit Test(5 页数, 修订版 A, 更新时间: 12/1997)
- Driving Unipolar Stepper Motors Using 8051(文件大小: 460186, 15 页数, 修订版 B, 更新时间: 12/2002)
- EMC Improvement Guidelines(17 页数, 修订版 B, 更新时间: 08/2003)
- External Brown-out Protection for C51 Microcontrollers with Active High Reset Input(文件大小: 503373, 15 页数, 更新时间: 11/2002)
- How to Calculate the Capacitor of the Reset Input of an 8051 Microcontroller(文件大小: 57856, 8 页数, 修订版 A, 更新时间: 10/2003)
How to Calculate the Capacitor of the Reset Input of an 8051 Microcontroller - Interfacing AT24CXX Serial EEPROMs with AT89LP MCUs(文件大小: 6161, 4 页数, 修订版 F, 更新时间: 06/2011)
Interfacing AT24CXX Serial EEPROMs with AT89LP MCUs - Interfacing AT25CXXX Serial EEPROMs with AT89LP MCUs(文件大小: 6719, 3 页数, 修订版 D, 更新时间: 06/2011)
Interfacing AT25CXXX Serial EEPROMs with AT89LP MCUs - Interfacing AT93CXXX Serial EEPROMs with AT89LP MCUs(文件大小: 5943, 3 页数, 修订版 D, 更新时间: 06/2011)
Interfacing AT93CXXX Serial EEPROMs with AT89LP MCUs - PC-Interfaced Data Aquisition System with the Atmel AT89C2051 Microcontroller(19 页数, 修订版 A, 更新时间: 11/2003)
- Programming the Atmel Family of Flash Memories(4 页数, 修订版 B, 更新时间: 12/1997)
Programming the Atmel Family of Flash Memories - Two-Wire Peripheral Expansion for the AT89LP2052 MCU(文件大小: 5096, 13 页数, 修订版 B, 更新时间: 06/2011)
Two-Wire Peripheral Expansion for the AT89LP2052 MCU - Using a Personal Computer to Program the AT89C51/C52/LV51/LV52/C1051/C2051(8 页数, 修订版 D, 更新时间: 12/1997)
Using a Personal Computer to Program the AT89C51/C52/LV51/LV52/C1051/C2051
Brochures and Flyers
Other
- Best practices for the PCB layout of Oscillators(文件大小: 92401, 4 页数, 修订版 A, 更新时间: 03/2008)
- Calculation tool for setting Timers, UART, parameters in 80C51 Microcontrollers(文件大小: 19234, 更新时间: 06/2007)
- Hardware Connections for C51 Microcontrollers(文件大小: 44518, 4 页数, 更新时间: 07/2004)
- NXP Flash MCU to Atmel Flash MCU Cross Reference(文件大小: 87KB, 4 页数, 更新时间: 07/2012)
- NXP Flash MCU to Atmel Flash MCU Devices, Non-Direct Replacements(文件大小: 41KB, 2 页数, 更新时间: 07/2012)
- Tables for setting UART parameters in 80C51 Microcontrollers(文件大小: 27648, 修订版 B, 更新时间: 01/2005)
- Device Programmers for 8051 Devices(文件大小: 432128, 更新时间: 09/2007)
- Emulators for 80C51 Devices(文件大小: 148480, 更新时间: 11/2003)
- Package Adapters of 80C51 Devices(文件大小: 32768, 更新时间: 10/2004)
Qualification
User Guide
