Hempl/Models and Specifications


 * Main processor: AVR32 UC3A0 @ 66 MHz
 * Internal fast SRAM: 32KB or 64KB with single-cycle access time
 * On-board SDRAM: 32MB with 2-cycle access time
 * Internal Flash memory: 128/256/512KB with single-cycle access time
 * External Flash memory: up to 4GB on micro SD card.
 * Internal operating Voltage: 3.3V with 5V input tolerant I/O
 * Digital I/O Pins: 66
 * Timer/Counter: 3 channel, 16-bit.
 * Analog-to-Digital input pins: 8 with 10-bit resolution measuring 0-3.3v at up to 384,000 samples per second
 * Stereo audio bitstream Digital-to-Analog Converter with 16 bit resolution at up to 48kHz
 * Pulse Width Modulation channels (PWM): 7
 * Universal Sync/Async RX/TX (USART): 2
 * Serial Periperal Interface (SPI): 2
 * Two-Wire Interface (TWI): 1, I2C-compatible at up to 400kbit/s
 * Universal Serial Bus (USB): 1 OTG host with dedicated cable.
 * Debug Port: JTAG connector
 * Ethernet MAC 10/100: 1 (requires add-on hardware module)
 * Oscillators: 2 (12MHz and 32768Hz)
 * Buttons: Reset button, user button
 * LEDs: Power LED, User LED
 * Power supply: 5V USB or 7.5V-35V DC, 80mA (base board) to 222mA (with all add-on modules)
 * Dimensions: 96,5mm x 63,5mm
 * Weight: 42.5 grams
 * Temperature range: -45 to +85&deg;C

Embedded Hardware interfaces

 * MicroSD
 * USB
 * JTAG
 * Add-on bus connectors 1-6 interfaces on the Add-on Bus
 * 12 General Purpose I/O pins
 * 2 UARTs: one basic, one with modem control signals
 * 2 SPI
 * I2C interface with 2-way splitter
 * 8 ADC inputs
 * 3 high-resolution timers
 * Ethernet

= Optional Stacked Modules =