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
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