Analog Peripherals
12-Bit ADC
- ±1 LSB INL; no missing codes
- Programmable throughput up to 100 ksps
- 8 external inputs; programmable as single-ended or differential
- Programmable amplifier gain: 16, 8, 4, 2, 1, 0.5
- Data-dependent windowed interrupt generator
- Built-in temperature sensor (±3 °C)

Two 12-Bit DACs
- Voltage output
- 10 µsec settling time

Two Comparators
- 16 programmable hysteresis values
- Configurable to generate interrupts or reset

Internal Voltage Reference
VDD Monitor/Brown-out Detector
On-Chip JTAG Debug
- On-chip emulation circuitry facilitates full-speed, non-intrusive, in-circuit emulation
- Supports breakpoints, single stepping, watchpoints, inspect/modify memory, and registers
- Superior performance to emulation systems using ICE-chips, target pods, and sockets
- Fully compliant with IEEE 1149.1 specification

High-Speed 8051 µC 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; up to 21 interrupt sources

Memory
- 2304 bytes data RAM
- 32 kB Flash; in-system programmable in 512-byte sectors (512 bytes are reserved)

Digital Peripherals
- 32 port I/O; all are 5 V tolerant
- Hardware SMBus™ (I2C™ compatible), SPI™, and UART serial ports available concurrently
- Programmable 16-bit counter/timer array with five capture/compare modules
- 4 general-purpose 16-bit counter/timers
- Dedicated watchdog timer; bidirectional reset

Clock Sources
- Internal programmable oscillator: 2–16 MHz
- External oscillator: Crystal, RC, C, or Clock
- Can switch between clock sources on-the-fly

Supply Voltage: 2.7 to 3.6 V
- Typical operating current: 12.5 mA at 25 MHz
- Multiple power saving sleep and shutdown modes

64-Pin TQFP
Temperature Range: –40 to +85 °C