AT91系列 ARM 微控制器 AT91M55800A
| Status | Production |
| SRAM (Bytes) | 8K |
| External Bus Interface | 1 |
| RTC/RTT | 1/- |
| 10-bit ADC Channels | 8 |
| 10-bit DAC Channel | 2 |
| Peripheral DMA Channels | 10 |
| Max. Clock Speed (MHz) | 33 |
| I/O Pins | 58 |
| USART/DBGU | 3/- |
| SPI | 1 |
| 16-bit Timers | 6 |
| Watchdog Timer | 1 |
| Crystal Oscillator/PLL | 39845 |
| ARM Core | 7TDMI |
| I/O Voltage Domain (V) | 3.3/5.0 |
| Single Supply | Y |
| Pb-Free Packages | LFBGA 176 LQFP 176 |
AT91M55800A 概述
爱特梅尔的AT91 ARM Thumb微控制器能提供8位微控制器用户期望的32位的性能，而仍在他的严格的系统预算之内。额外性能使软件中创新而非发展通信、压缩或控制协议。依据工业标准的ARM处理器核心建立一个微控制器产品系列保证了顾客的长期可及性。ARM处理器的普遍采用使大量的合格软件IP产品得到发展，减少了新产品的上市时间。AT91 微控制器以低功率, 实时控制应用为目标。它们已经被成功地设计入工业自动化系统、MP-3/WMA 播放器、数据采集产品、传呼器, 点销售终端、医疗设备, GPS 和网络系统。
The AT91M55800A is a member of the Atmel AT91 16/32-bit microcontroller family, which is based on the ARM7TDMI processor core. This processor has a high-performance 32-bit RISC architecture with a high-density 16-bit instruction set and very low power consumption. In addition, a large number of internally banked registers result in very fast exception handling, making the device ideal for real-time control applications.
AT91M55800A 特性
- Utilizes the ARM7TDMI(R) ARM(R) Thumb(R) Processor Core
– High-performance 32-bit RISC Architecture
– High-density 16-bit Instruction Set
– Leader in MIPS/Watt
– EmbeddedICETM (In-Circuit Emulation) - 8K Bytes Internal SRAM
- Fully-programmable External Bus Interface (EBI)
– Maximum External Address Space of 128M Bytes
– 8 Chip Selects
– Software Programmable 8/16-bit External Databus - 8-level Priority, Individually Maskable, Vectored Interrupt Controller
– 7 External Interrupts, Including a High-priority, Low-latency Interrupt Request - 58 Programmable I/O Lines
- 6-channel 16-bit Timer/Counter
– 6 External Clock Inputs and 2 Multi-purpose I/O Pins per Channel - 3 USARTs
- Master/Slave SPI Interface
– 8-bit to 16-bit Programmable Data Length
– 4 External Slave Chip Selects - Programmable Watchdog Timer
- 8-channel 10-bit ADC
- 2-channel 10-bit DAC
- Clock Generator with On-chip Main Oscillator and PLL for Multiplication
– 3 to 20 MHz Frequency Range Main Oscillator - Real-time Clock with On-chip 32 kHz Oscillator
– Battery Backup Operation and External Alarm - 8-channel Peripheral Data Controller for USARTs and SPIs
- Advanced Power Management Controller (APMC)
– Normal, Wait, Slow, Standby and Power-down modes - IEEE(R) 1149.1 JTAG Boundary-scan on all Digital Pins
- Fully Static Operation: 0 Hz to 33 MHz Internal Frequency Range
at VDDCORE = 3.0V, 85°C - 2.7V to 3.6V Core Operating Range, 2.7V to 5.5V I/O Operating Range
- 2.7V to 3.6V Analog Operating Range
- 1.8V to 3.6V Backup Battery Operating Range
- 2.7V to 3.6V Oscillator and PLL Operating Range
- -40° C to +85°C Temperature Range
- Available in a 176-lead LQFP (Green) or 176-ball BGA Package (RoHS-compliant)
AT91M55800A 订购型号
| Ordering Code | Package | Package Type | Operating Temperature Range |
| AT91M55800A-33AU | LQFP 176 | Greent | -40° C to +85°C |
| AT91M55800A-33CJ | BGA 176 | RoHS-compliant |
AT91M55800A 应用技术支持与电子电路设计开发资源下载
- AT91M55800A 数据手册DataSheet 下载 . PDF(完整版)
- ARM7TDMI 技术白皮书
- AT91SAM 系列产品选型指南(Brochure, 2 pages, revision E, updated 2/09)
Product selection guide to Atmel's AT91SAM microcontrollers that give immediate access to market-leading ARM processors. - Atmel's ARM-based Microcontroller Excels in Real-Time (White Paper, 6 pages, revision A, updated 3/01)
Applications such as mobile communicators, PDAs, solid-state music players and internet appliances demand the best possible real-time performance. Atmel's AT91 series of ARM-based microcontrollers incorporates a number of advanced features that enhance the real-time performance of the ARM7TDMI core, making it ideal for applications of this nature.