| 参数 |
数值 |
| FPU |
No |
| SPI |
2 |
| Ext Interrupts |
62 |
| Self Program Memory |
NO |
| Operating Voltage (Vcc) |
3.0 to 3.6 |
| PWM Channels |
4 |
| picoPower |
No |
| Timers |
3 |
| SSC |
1 |
| I/O Supply Class |
3.3 |
| Video Decoder |
No |
| USB Interface |
Device |
| Temp. Sensor |
No |
| Ethernet |
1 |
| Crypto Engine |
No |
| Pin Count |
100 |
| Temp. Range (deg C) |
-40 to 85 |
| Camera Interface |
No |
| Graphic LCD |
No |
| ADC channels |
8 |
| Flash (Kbytes) |
256 Kbytes |
| DAC Channels |
0 |
| MPU / MMU |
no / no |
| External Bus Interface |
0 |
| CPU |
ARM7TDMI |
| Output Compare channels |
3 |
| Hardware QTouch Acquisition |
No |
| 32kHz RTC |
Yes |
| Max. Operating Frequency |
55 MHz |
| USB Speed |
Full Speed |
| EEPROM (Bytes) |
0 |
| CAN |
1 |
| DRAM Memory |
No |
| SRAM (Kbytes) |
64 |
| ADC Speed (ksps) |
384 |
| Calibrated RC Oscillator |
No |
| Resistive Touch Screen |
No |
| DAC Resolution (bits) |
0 |
| UART |
3 |
| Max I/O Pins |
62 |
| ADC Resolution (bits) |
10 |
| TWI (I2C) |
1 |
| NAND Interface |
No |
| USB Transceiver |
1 |
| Input Capture Channels |
3 |
| 系列 |
AT91SAM |
| 核心处理器 |
ARM7 |
| 芯体尺寸 |
16/32-Bit |
| 速度 |
55MHz |
| RAM容量 |
64K x 8 |
| 程序存储器类型 |
FLASH |
| 程序存储器容量 |
256KB (256K x 8) |
| 输入/输出数 |
62 |
| 振荡器型 |
Internal |
| 数据转换器 |
A/D 8x10b |
| 连通性 |
CAN, Ethernet, I²C, SPI, SSC, UART/USART, USB |
| 工作电压 |
1.65 V ~ 1.95 V |
| 工作温度 |
-40°C ~ 85°C |
| 周边设备 |
Brown-out Detect/Reset, DMA, POR, PWM, WDT |
A member of the Atmel SAM7X series of microcontrollers based on the 32-bit ARM7TDMI processor. It operates at a maximum speed of 55 MHz and features 256KB of flash and 64KB of SRAM. The peripheral set includes USB 2.0 full speed device port , Ethernet MAC 10/100 port, CAN 2.0A and 2.0B compliant Controller, two USART, UART, two SPI, SSC, TWI, three 16-bit timers, RTT and 8x10-bit ADC. Typical core supply is 1.8V, I/Os are supplied at 1.8V or 3.3V and are 5V tolerant. An integrated voltage regulator allows single supply at 3.3V. The SAM7X256 is supplied in 100-lead LQFP and TFBGA packages.
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