Analog Peripherals
10-Bit ADC (‘F330/2/4 only)

• Up to 200 ksps
• Up to 16 external single-ended or differential inputs
• VREF from internal VREF, external pin or VDD
• Internal or external start of conversion source
• Built-in temperature sensor
• 10-Bit Current Output DAC (‘F330 only)

Comparator

• Programmable hysteresis and response time
• Configurable as interrupt or reset source
• Low current (0.4 μA)

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
• Low cost, complete development kit

Supply Voltage 2.7 to 3.6 V

• Typical operating current:6.4 mA at 25 MHz; 9 μA at 32 kHz
• Typical stop mode current:0.1 μA

Temperature Range: –40 to +85 °C

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

Memory

• 768 bytes internal data RAM (256 + 512)
• 8 kB (‘F330/1), 4 kB (‘F332/3), or 2 kB (‘F334/5) Flash; In-system programmable in 512-byte Sectors— 512 bytes are reserved in the 8 kB devices

Digital Peripherals

• 17 Port I/O; All 5 V tolerant with high sink current
• Hardware enhanced UART, SMBus™, and enhanced SPI™ serial ports
• Four general purpose 16-bit counter/timers
• 16-Bit programmable counter array (PCA) with three capture/compare modules
• Real time clock mode using PCA or timer and external clock source

Clock Sources

• Two internal oscillators:
  • 24.5 MHz with ±2% accuracy supports crystal-less UART operation
  • 80/40/20/10 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; useful in power saving modes

20-Pin QFN or 20-pin PDIP