Product Description
SummaryThe Microchip's ARM-based SAM7X256 is a member of the Microchip 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 memory and 64KB of SRAM.
The peripheral set includes USB 2.0 Full Speed device port, Ethernet MAC 10/100Base T port, CAN 2.
0A and 2.
0B compliant controller, two USARTs, UART, two SPI, SSC, TWI (I2C), 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 SAM7X128 is supplied in 100-lead LQFP and TFBGA packages.
Features• Incorporates the ARM7TDMI ARM Thumb® Processor High-performance 32-bit RISC Architecture• High-density 16-bit Instruction Set, Leader in MIPS/Watt• EmbeddedICE™ In-circuit Emulation, Debug Communication Channel Support• Internal High-speed Flash- 256 Kbytes (SAM7X256) Organized in 1024 Pages of 256 Bytes (Single Plane)• Internal High-speed SRAM, Single-cycle Access at Maximum Speed- 64 Kbytes (SAM7X256)• Memory Controller (MC)• Reset Controller (RSTC)• Clock Generator (CKGR)• Power Management Controller (PMC)• Advanced Interrupt Controller (AIC)• Debug Unit (DBGU)• Periodic Interval Timer (PIT)- 20-bit Programmable Counter plus 12-bit Interval Counter• Windowed Watchdog (WDT)• Real-time Timer (RTT)• Two Parallel Input/Output Controllers (PIO)- Sixty-two Programmable I/O Lines Multiplexed with up to Two Peripheral I/Os• Thirteen Peripheral DMA Controller (PDC) Channels• One USB 2.0 Full Speed (12 Mbits per second) Device Port• One Ethernet MAC 10/100 base-T• One Part 2.
0A and Part 2.
0B Compliant CAN Controller• One Synchronous Serial Controller (SSC)• Two Universal Synchronous/Asynchronous Receiver Transmitters (USART)• Two Master/Slave Serial Peripheral Interfaces (SPI)• One Three-channel 16-bit Timer/Counter (TC)• One Four-channel 16-bit Power Width Modulation Controller (PWMC)• One Two-wire Interface (TWI)• One 8-channel 10-bit Analog-to-Digital Converter, Four Channels Multiplexed with Digital I/Os• SAM-BA® Boot Assistance• IEEE® 1149.1 JTAG Boundary Scan on All Digital Pins• 5V-tolerant I/Os, Including Four High-current Drive I/O lines, Up to 16 mA Each• Power Supplies- Embedded 1.
8V Regulator, Drawing up to 100 mA for the Core and External Components- 3.
3V VDDIO I/O Lines Power Supply, Independent 3.
3V VDDFLASH Flash Power Supply- 1.
8V VDDCORE Core Power Supply with Brownout Detector• Fully Static Operation: Up to 55 MHz at 1.
65V and 85°C Worst Case Conditions• Available in 100-lead LQFP Green and 100-ball TFBGA Green Packages
