Analog Peripherals

- 10-Bit ADC

• Up to 500 ksps

• Built-in analog multiplexer with single-ended and

differential mode

• VREF from external pin, internal reference, or VDD

• Built-in temperature sensor

• External conversion start input option

- Two comparators

- Internal voltage reference

- Brown-out detector and POR Circuitry

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

Voltage Supply Input: 2.7 to 5.25 V

- Voltages from 2.7 to 5.25 V supported using On-Chip

Voltage Regulators

High Speed 8051 μC Core

- Pipelined instruction architecture; executes 70 of

instructions in 1 or 2 system clocks

- Up to 48 MIPS operation

- Expanded interrupt handler

Memory

- 4352 or 2304 Bytes RAM

- 64 or 32 kB Flash; In-system programmable in 512-byte

sectors

Digital Peripherals

- 40/25 Port I/O; All 5 V tolerant with high sink current

- Hardware enhanced SPI™, two I2C/SMBus™, and two

enhanced UART serial ports

- Six general purpose 16-bit counter/timers

- 16-bit programmable counter array (PCA) with five capture/

compare modules

- External Memory Interface (EMIF)

Clock Sources

- Internal Oscillator: ±1.5 accuracy. Supports all UART

modes

- External Oscillator: Crystal, RC, C, or clock (1 or 2 Pin

modes)

- Low Frequency (80 kHz) Internal Oscillator

- Can switch between clock sources on-the-fly

Packages

- 48-pin TQFP (C8051F388/A)

- 32-pin LQFP (C8051F389/B)

- 5x5 mm 32-pin QFN (C8051F389/B)

Temperature Range: –40 to +85 °C