Analog Peripherals
10-Bit ADC
    - ±1 LSB INL; no missing codes
    - Programmable throughput up to 100 ksps
    - 8 external inputs; programmable as single-ended or differential
    - Data-dependent windowed interrupt generator
    - Built-in temperature sensor (±3 °C)
Two Comparators
    - 16 programmable hysteresis values
    - Configurable to generate interrupts or reset
Internal Voltage Reference
VDD Monitor/Brown-out Detector

On-Chip JTAG Debug & Boundary Scan
- On-chip debug circuitry facilitates full speed, non-intrusive in-system debug (no emulator required)
- Provides breakpoints, single stepping, watchpoints, stack monitor
- Inspect/modify memory and registers
- Superior performance to emulation systems using ICE-chips, target pods, and sockets
- IEEE1149.1 compliant boundary scan

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 system clock
- Expanded interrupt handler

Memory
- 1280 bytes data RAM
- 16 kB Flash; in system programmamble in 512-byte sectors (512 bytes are reserved)

Digital Peripherals
- 16 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: 2.8 to 3.6 V
- Typical operating current: 12.5 mA at 25 MHz
- Multiple power saving sleep and shutdown modes

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