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System Overview

The C8051F52x/F52xA/F53x/F53xA family of devices are fully integrated, low power, mixed-signal systemon-a-chip MCUs. Highlighted features are listed below. Refer to Table 1.1 for specific product feature selection.

■ High-speed pipelined 8051-compatible microcontroller core (up to 25 MIPS)

■ In-system, full-speed, non-intrusive debug interface (on-chip)

■ True 12-bit 200 ksps ADC with analog multiplexer and up to 16 analog inputs

■ Precision programmable 24.5 MHz internal oscillator that is within ±0.5 across the temperature range and for VDD voltages greater than or equal to the on-chip voltage regulator minimum output at the low setting. The oscillator is within +1.0 for VDD voltages below this minimum output setting.

■ Up to 7680 bytes of on-chip Flash memory

■ 256 bytes of on-chip RAM

■ Enhanced UART, and SPI serial interfaces implemented in hardware

■ LIN 2.1 peripheral (fully backwards compatible, master and slave modes)

■ Three general-purpose 16-bit timers

■ Programmable Counter/Timer Array (PCA) with three capture/compare modules and Watchdog Timer function

■ On-chip Power-On Reset, VDD Monitor, and Temperature Sensor

■ On-chip Voltage Comparator

■ Up to 16 Port I/O

Analog Peripherals

- 12-Bit ADC

? Programmable throughput up to 200 ksps

? Up to 6/16 external inputs

? Data dependent windowed interrupt generator

? Built-in temperature sensor

- Comparator

? Programmable hysteresis and response time

? Configurable as wake-up or reset source

? Low current

- POR/Brownout Detector

- Voltage Reference—1.5 and 2.2 V (programmable)

On-Chip Debug

- On-chip debug circuitry facilitates full-speed, nonintrusive in-system debug (No emulator required)

- Provides breakpoints, single stepping

- Inspect/modify memory and registers

- Complete development kit

Supply Voltage 2.0 to 5.25 V

- Built-in LDO regulator

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

- 8/4/2 kB Flash; In-system byte programmable in 512 byte sectors

- 256 bytes internal data RAM

Digital Peripherals

- 16/6 port I/O; push-pull or open-drain, 5 V tolerant

- Hardware SPI?, and UART serial port

- LIN 2.1 Controller (Master and Slave capable); no crystal required

- Three general purpose 16-bit counter/timers

- Programmable 16-bit counter/timer array with three capture/compare modules, WDT

Clock Sources

- Internal oscillators: 24.5 MHz ±0.5 accuracy supports UART and LIN-Master operation

- External oscillator: Crystal, RC, C, or Clock (1 or 2 pin modes)

- Can switch between clock sources on-the-fly

Packages

- 10-Pin DFN (3 x 3 mm)

- 20-pin QFN (4 x 4 mm)

- 20-pin TSSOP

Automotive Qualified

- Temperature Range: –40 to +125 °C

- Compliant to AEC-Q100