Analog Peripherals
10-Bit ADC
   - ±1 LSB INL; no missing codes
   - Programmable throughput up to 200 ksps
   - Up to 21 external inputs; programmable as single-ended or differential
   - Data-dependent windowed interrupt generator
   - Built-in temperature sensor (±3 °C)
Two Comparators
   - Programmable hysteresis and response time
   - Configurable to generate interrupts or reset
   - Low current (0.4 µA)
POR/Brown-out Detector
On-Chip Debug
   - On-chip debug circuitry facilitates full speed, non-intrusive in-system debug (no emulator required)
   - Provides breakpoints, single stepping
   - Inspect/modify memory and registers
   - Superior performance to emulation systems using ICE-chips, target pods, and sockets
Supply Voltage: 2.7 to 3.6 V
   - Typical Operating Current: 7 mA at 25 MHz
                                15 µA at 32 kHz
   - Typical Stop Mode Current: <0.1 µA
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 programmable in 512-byte sectors (512 bytes are reserved)
Digital Peripherals
   - 29 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, WDT
   - 4 general-purpose 16-bit counter/timers
   - Realtime clock mode using timer or PCA
Clock Sources
   - Internal oscillator: 24.5 MHz, 2% accuracy supports UART operation
   - External oscillator: Crystal, RC, C, or Clock (1 or 2 pin modes)
   - Can switch between clock sources on-the-fly
32-Pin LQFP
Temperature Range: –40 to +85 °C