MC68302CRC20C

The MC68302CRC20C is a highly integrated one-chip processor built around the industry-standard M68000/M68008 core with a dedicated communications processor (RISC CPM). It combines CPU, communications controllers, memory resources and system control to address networking and communications designs.

Targeted at industrial applications, this 20 MHz device offers on-chip communications engines, DMA and flexible peripheral mapping to simplify designs for ISDN, modems, data concentrators, line cards, bridges and gateways while operating from a 5 V I/O environment and an industrial temperature range.

Key Features

• Core & Architecture  M68000/M68008 microprocessor core with a separate RISC communications processor (CP) for offloading protocol processing.
• Clock & Voltage  20 MHz core speed with 5 V I/O specification.
• Communications & Protocol Support  Three Serial Communications Controllers (SCCs) plus two Serial Management Controllers (SMCs) supporting protocols such as HDLC/SDLC, Bisync, UART, DDCMP and totally transparent modes.
• DMA & Memory  Independent Direct Memory Access (IDMA) controller, six serial DMA channels and on-chip 1,152‑byte dual-port RAM to reduce CPU intervention for communications transfers.
• System Control & Timers  Interrupt controller with multiple modes, three timers including a software watchdog, hardware watchdog for bus activity monitoring, and DRAM refresh controller.
• I/O & Expansion  Parallel I/O ports (some with interrupt capability), four programmable chip-select lines with wait-state logic, and programmable address mapping of dual-port RAM and IMP registers.
• Physical & Packaging  132‑pin PGA package (Supplier device package: 132‑PGA, 34.5×34.5 mm) with package case noted as 132‑BPGA exposed pad and through‑hole mounting.
• Operating Range & Qualification  Industrial qualification with operating temperature of −40 °C to 85 °C and RoHS compliance.

Typical Applications

• ISDN Equipment  Use the integrated communications controllers and protocol support for ISDN basic rate and terminal adapter implementations.
• Modems and Data Concentrators  On‑chip DMA, SCCs and dual‑port RAM enable high‑efficiency data buffering and transfers with reduced CPU overhead.
• Line Cards and Network Interfaces  Flexible serial interfaces (IDL, GCI, PCM, NMSI) and programmable chip‑selects suit line card and embedded network interface designs.
• Bridges and Gateways  Integrated CPU plus dedicated communications processor supports concurrent protocol operation for bridging and gateway functions.

Unique Advantages

• Highly integrated communications and CPU: The combination of an M68000 core and a separate RISC communications processor reduces system BOM and offloads protocol work from the main CPU.
• Multi‑protocol support: SCCs and SMCs handle HDLC/SDLC, Bisync, UART, DDCMP and transparent modes, enabling flexible deployment across protocol stacks.
• Efficient data movement: IDMA controller, six serial DMA channels and dual‑port RAM allow multiple buffers/frames to be sent or received without main CPU intervention.
• Robust system control: Built‑in interrupt modes, hardware watchdogs, clock generator and DRAM refresh controller support reliable long‑term operation.
• Industrial readiness: Rated for −40 °C to 85 °C and RoHS compliant for use in industrial environments.
• Proven ecosystem support: The MC68302 family has established third‑party tool support and documentation resources to accelerate development.

Why Choose MC68302CRC20C?

The MC68302CRC20C positions itself as a compact, integration‑focused processor for communications and networking applications where a combination of an industry‑standard M68000 core and a dedicated communications processor is required. Its on‑chip DMA, multiple serial controllers and programmable system resources simplify board‑level design and reduce external component count.

This device is suitable for engineers and designers developing industrial communication equipment, line interfaces and protocol concentrators who need an integrated solution with established tool and documentation support and industrial temperature capability.

Request a quote or submit an inquiry to start your procurement or project evaluation for the MC68302CRC20C today.