Single-chip 16-bit/32-bit ARM7TDMI-S microcontroller integrates 512 kB of embedded flash memory and 40 kB total on-chip SRAM for code and data storage. The device supports up to 60 MHz operation with a 128-bit flash interface and accelerator architecture. Integrated peripherals include a USB 2.0 full-speed device controller, two UARTs, two Fast I2C-bus controllers, SPI, SSP, two 10-bit ADCs, a 10-bit DAC, timers, PWM outputs, watchdog, RTC, and up to 45 fast GPIO lines. The 64-lead LQFP package operates from a 3.0 V to 3.6 V supply over a -40 °C to +85 °C temperature range with 5 V tolerant digital I/O pads.
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| CPU core | ARM7TDMI-S |
| Data width | 16/32bit |
| Maximum CPU clock | 60MHz |
| Flash memory | 512kB |
| Static RAM | 32 + 8 shared with USB DMAkB |
| USB endpoint RAM | 2kB |
| USB interface | USB 2.0 full-speed device |
| UART interfaces | 2 |
| I2C interfaces | 2 Fast I2C-bus controllers |
| I2C maximum bit rate | 400kbit/s |
| SPI interfaces | SPI and SSP |
| ADC resolution | 10bit |
| ADC channels | 14 total |
| ADC sample rate | >400000 per convertersamples/s |
| DAC resolution | 10bit |
| GPIO lines | Up to 45, 5 V tolerant |
| PWM outputs | 6 |
| Supply voltage | 3.0 to 3.6V |
| Operating temperature | -40 to +85°C |
| Package | LQFP64, 64 leads, 10 x 10 x 1.4 mm |
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