MC68302RC16C

The MC68302RC16C is a single‑chip microprocessor integrating an MC68000/MC68008 core with a communications processor and system integration block. It combines a 16 MHz M68000-class core with a flexible communications architecture designed for networking and communications products.

Built for embedded communications tasks, the device addresses applications such as ISDN equipment, data concentrators, modems, line cards, bridges and gateways by bringing processor, communications controllers and system peripherals into a single package to simplify design and integration.

Key Features

• Core and Performance — MC68000/MC68008 microprocessor core operating at 16 MHz with a single 8/16-bit core bus configuration.
• Communications Processor (CP) — Separate RISC communications processor (CP) for offloading protocol processing and supporting multi‑channel communications tasks.
• Serial Controllers — Three Serial Communications Controllers (SCCs) supporting HDLC/SDLC, Bisync, UART, DDCMP and totally transparent protocols; two Serial Management Controllers (SMCs) for IDL and GCI channels.
• DMA and Buffering — Independent DMA controller and six serial DMA channels dedicated to SCCs; capability to send/receive up to eight buffers/frames without M68000 core intervention.
• On‑Chip Memory and DRAM Support — 1152 bytes of on‑chip dual‑port RAM and an integrated DRAM refresh/controller and four programmable chip‑select lines with wait‑state logic.
• System and I/O — Interrupt controller with two modes, parallel I/O ports (some with interrupt capability), three timers including a software watchdog timer, programmable address mapping and freeze control for debugging selected peripherals.
• Interfaces — Flexible physical interface for IDL, General Circuit Interface (GCI), PCM and non‑multiplexed serial interfaces; includes a Serial Communication Port (SCP) for synchronous communication.
• Package, Power and Temperature — 132‑PGA (34.5×34.5 mm) exposed‑pad package, through‑hole mounting, 5 V I/O supply and an operating temperature range of 0 °C to 70 °C.
• Compliance — RoHS compliant.

Typical Applications

• ISDN Equipment — Supports ISDN basic rate and terminal adapter implementations through configurable communications interfaces and protocol support.
• Data Concentrators and Modems — Integrated communications controllers, DMA and buffering enable efficient handling of multi‑channel serial data streams.
• Line Cards and Network Interfaces — On‑chip DRAM support, programmable chip selects and flexible I/O mapping simplify line card integration and memory interfacing.
• Bridges and Gateways — Combined processing core and communications peripherals allow concurrent protocol operation and consolidated system design for gateway applications.

Unique Advantages

• Highly integrated one‑chip solution: Combines M68000 core, RISC communications processor and system integration block to reduce board-level BOM and simplify design.
• Flexible protocol support: SCCs and SMCs support HDLC/SDLC, Bisync, UART, DDCMP and other protocols, enabling multi‑protocol deployments without extensive external logic.
• Offload capability with DMA: Dedicated serial DMA channels and buffer handling allow sustained data transfer with reduced host CPU intervention.
• Embedded memory and DRAM support: On‑chip dual‑port RAM plus DRAM controller and programmable chip selects support efficient data buffering and external memory interfacing.
• Design and debugging features: On‑chip clock generator, freeze control, disable CPU logic and watchdog timer assist development, debugging and system control.
• Regulatory and assembly readiness: RoHS compliance and a 132‑PGA exposed‑pad package with through‑hole mounting support standard assembly processes.

Why Choose MC68302RC16C?

The MC68302RC16C positions itself as a compact, integrated processor for embedded communications designs that require both general‑purpose processing and dedicated communications handling. Its combination of an MC68000/MC68008 core, a RISC communications processor, multiple serial controllers and on‑chip DMA and RAM makes it suitable for systems that must manage concurrent protocols and sustained serial data flow.

Engineers and procurement teams building ISDN equipment, data concentrators, modems, line cards, bridges or gateways will find the MC68302RC16C useful for reducing external component count, simplifying board layout and leveraging available software and tool support referenced for the MC68302 family.

Request a quote or submit a pricing inquiry for the MC68302RC16C to get availability and lead‑time details tailored to your project needs.