Analog Peripherals

10-Bit ADC
   - Programmable throughput up to 200 ksps
   - Up to 16 external inputs; programmable as single-ended or differential
   - Reference from internal VREF, VDD, or external pin
   - Internal or external start of conversion sources
   - Built-in temperature sensor (¡¾3 ¡ÆC)

10-bit DAC (Current Mode)

Comparator
   - Programmable hysteresis and response time
   - Configurable to generate interrupts or reset
   - Low current (0.4 ¥ìA)

On-Chip Debug
   - On-chip debug circuitry facilitates full speed, non-intrusive in-system debug (no emulator required)
   - Provides breakpoints, single stepping, watchpoints
   - Inspect/modify memory, registers, and stack
   - Superior performance to emulation systems using ICE-chips, target pods, and sockets

Temperature Range: –40 to +85 ¡ÆC

High-Speed 8051 ¥ìC Core
   - Pipelined instruction architecture; executes 70% of instructions in 1 or 2 system clocks
   - Up to 25 MIPS throughput with 25 MHz clock
   - Expanded interrupt handler

Memory
   - 768 bytes data RAM
   - 8 kB Flash; in-system programmable in 512 byte sectors (512 bytes are reserved)

Digital Peripherals
   - 17 port I/O; all are 5 V tolerant
   - Hardware SMBus¢â (I2C¢â compatible), SPI¢â, and UART serial ports available concurrently
   - Programmable 16-bit counter/timer array with three capture/compare modules, WDT
   - 4 general-purpose 16-bit counter/timers
   - Real-time clock mode using PCA or timer and external clock source

Clock Sources
   - Two internal oscillators:
      - 24.5 MHz, 2% accuracy supports UART operation
      - 80 kHz low frequency, low-power
   - External oscillator: Crystal, RC, C, or Clock (1 or 2 pin modes)
   - Can switch between clock sources on-the-fly

Supply Voltage: 2.7 to 3.6 V
   - Typical operating current: 6.4 mA at 25 MHz
                                      9 ¥ìA at 32 kHz
   - Typical stop mode current: <0.1 ¥ìA

Package
   - 20-pin QFN (lead-free package)