MC68302CRC20C

The MC68302CRC20C is a Motorola/Freescale MC68302 family microcontroller based on a 68000-compatible core. The CRC20C suffix indicates a specific variant (typically a 20‑MHz class device with a particular ROM/grade option).
Key points:
- CPU: 68000-family core, typically operable up to about 20 MHz.
- On‑chip peripherals: serial communications (SCI/UARTs), timers, interrupt controller, DMA, on‑chip memory interfaces, and I/O ports; often includes ADCs/DACs and a watchdog.
- Memory: on‑chip RAM and ROM options; external memory interface to expand RAM/ROM as needed.
- Bus/interface: flexible bus system for connecting to system RAM, peripherals, and external devices.
- Applications: embedded control in automotive, industrial automation, consumer electronics, and other real‑time control tasks.
- Tools: requires 68000‑toolchain and MCU development environment; consult the datasheet for exact pinout, memory map, and peripheral counts.
For precise specs (RAM/ROM size, numbers of SCI/timers, voltage, packages), refer to the MC68302CRC20C datasheet.

Here are the typical features of the MC68302CRC20C (Motorola/Freescale 68000‑family MCU):
- CPU: 68000‑class core (16‑bit data path, 24‑bit address space) for 68000 software compatibility.
- Memory interface: flexible memory map with options for on‑chip RAM/ROM and external memory expansion.
- Serial I/O: two SCI/UARTs plus an SPI port for versatile serial communication.
- Timers: multiple timer/counter blocks and a watchdog timer.
- I/O: several programmable parallel I/O ports with interrupt capabilities.
- Interrupts: vectored, priority‑based interrupt system with support for fast interrupt handling.
- Clock/Power: multiple clock options with configurable power modes for a broad voltage range.
- Package options: available in common industrial/automotive packages (e.g., DIP, QFP) suitable for rugged environments.
Note: exact peripheral counts and memory sizes can vary by die/revision; consult the specific datasheet for the CRC20C variant you have.

Pin count: depends on the package; common versions use 80-pin PLCC/QFP or 144-pin LQFP/DIP variants.
Function: MC68302CRC20C is an MC68K-family microcontroller with an on-chip 68000-compatible CPU core, integrated RAM/ROM, and peripheral blocks (e.g., serial interfaces, timers, and I/O).

- Manufacturer: Motorola (Motorola Semiconductor Products Inc.). The MC68302 lineage later became Freescale and is now part of NXP Semiconductors.
- Kind of company: A multinational technology company specializing in designing and manufacturing semiconductors and embedded processors/electronics.

Typical application areas for the MC68302CRC20C are:
- Automotive: instrument clusters, body electronics, chassis control
- Industrial automation: sensors, process control, motor control, data acquisition
- Consumer electronics and home appliances
- Medical devices: portable/embedded monitoring equipment
- Telecommunications and networking equipment: modems, set-top boxes, embedded controllers
- Instrumentation: test and measurement gear
- Security and safety systems (alarm/controllers)
- Point-of-sale and embedded control terminals
These areas leverage its integrated peripherals (serial interfaces, timers, I/O) for compact, cost-effective embedded control.

20-pin ceramic package (CRC20C).