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Technical Specifications
Parameters and characteristics for this part
| Specification | AT91SAM7S256D-MU |
|---|---|
| Connectivity | USB, SSC, UART/USART, I2C, SPI |
| Core Processor | ARM7® |
| Core Size [Max] | 32 Bit |
| Core Size [Min] | 16 Bit |
| Data Converters [custom] | 8 |
| Data Converters [custom] | 10 |
| Mounting Type | Surface Mount |
| Number of I/O | 32 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Oscillator Type | Internal |
| Package / Case | 64-VFQFN Exposed Pad |
| Peripherals | Brown-out Detect/Reset, DMA, POR, WDT, PWM |
| Program Memory Size | 256 KB |
| Program Memory Type | FLASH |
| RAM Size | 64 K |
| Speed | 55 MHz |
| Supplier Device Package | 64-QFN (9x9) |
| Part | Number of I/O | RAM Size | Speed | Oscillator Type | Supplier Device Package | Mounting Type | Program Memory Type | Connectivity | Package / Case | Core Processor | Program Memory Size | Peripherals | Operating Temperature [Max] | Operating Temperature [Min] | Core Size [Min] | Core Size [Max] | Data Converters [custom] | Data Converters [custom] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Microchip Technology | 32 | 64 K | 55 MHz | Internal | 64-LQFP (10x10) | Surface Mount | FLASH | I2C SPI SSC UART/USART USB | 64-LQFP | ARM7® | 256 KB | Brown-out Detect/Reset DMA POR PWM WDT | 85 °C | -40 °C | 16 Bit | 32 Bit | 8 | 10 |
Microchip Technology | 32 | 64 K | 55 MHz | Internal | 64-QFN (9x9) | Surface Mount | FLASH | I2C SPI SSC UART/USART USB | 64-VFQFN Exposed Pad | ARM7® | 256 KB | Brown-out Detect/Reset DMA POR PWM WDT | 85 °C | -40 °C | 16 Bit | 32 Bit | 8 | 10 |
Microchip Technology | 32 | 64 K | 55 MHz | Internal | 64-QFN (9x9) | Surface Mount | FLASH | I2C SPI SSC UART/USART USB | 64-VFQFN Exposed Pad | ARM7® | 256 KB | Brown-out Detect/Reset DMA POR PWM WDT | 85 °C | -40 °C | 16 Bit | 32 Bit | 8 | 10 |
Microchip Technology | 32 | 64 K | 55 MHz | Internal | 64-QFN (9x9) | Surface Mount | FLASH | I2C SPI SSC UART/USART USB | 64-VFQFN Exposed Pad | ARM7® | 256 KB | Brown-out Detect/Reset DMA POR PWM WDT | 85 °C | -40 °C | 16 Bit | 32 Bit | 8 | 10 |
Microchip Technology | 32 | 64 K | 55 MHz | Internal | 64-QFN (9x9) | Surface Mount | FLASH | I2C SPI SSC UART/USART USB | 64-VFQFN Exposed Pad | ARM7® | 256 KB | Brown-out Detect/Reset DMA POR PWM WDT | 85 °C | -40 °C | 16 Bit | 32 Bit | 8 | 10 |
Microchip Technology | 32 | 64 K | 55 MHz | Internal | 64-QFN (9x9) | Surface Mount | FLASH | I2C SPI SSC UART/USART USB | 64-VFQFN Exposed Pad | ARM7® | 256 KB | Brown-out Detect/Reset DMA POR PWM WDT | 85 °C | -40 °C | 16 Bit | 32 Bit | 8 | 10 |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tray | 1 | $ 11.56 | |
| 25 | $ 10.52 | |||
| 100 | $ 9.51 | |||
| Microchip Direct | TRAY | 1 | $ 11.56 | |
| 25 | $ 10.52 | |||
| 100 | $ 9.51 | |||
| 1000 | $ 8.70 | |||
| 5000 | $ 8.34 | |||
| Newark | Each | 1 | $ 12.00 | |
| 10 | $ 11.41 | |||
| 25 | $ 10.81 | |||
| 50 | $ 10.33 | |||
| 100 | $ 9.89 | |||
Description
General part information
AT91SAM7S256 Series
Microchip's ARM®-based SAM7S256 is a member of the SAM7S series of flash microcontrollers based on the 32-bit ARM7TDMI RISC processor.
It operates at a maximum speed of 55MHz and features 128KB of flash memory and 64KB of SRAM.
The peripheral set includes a Full Speed USB device and Phy at 12Mbps, UART, two USARTs, TWI (I2C), SPI, SSC, two PWM timers, three 16-bit timers, RTT, 8x10-bit ADC and 32 IO lines. It achieves single-cycle instruction access from embedded flash at 27 MIPS.
Documents
Technical documentation and resources