MC68306AG16B

The MC68306AG16B is a highly integrated microprocessor IC based on an EC000 32‑bit core running at 16 MHz. Designed for embedded applications, it combines central processing with system peripherals to simplify board-level design and accelerate time to market.

With on‑chip DRAM controller, two‑channel DUART serial I/O, timers and programmable system logic, the MC68306AG16B targets embedded control and communications applications where reduced component count, compact footprint and reliable system integration matter.

Key Features

• Core  Single EC000 core, 32‑bit architecture operating at 16 MHz for established 68k‑class code compatibility.
• Memory and DRAM Controller  Integrated DRAM controller with support for common DRAM configurations; datasheet notes support for 16 Mbytes using 4M × 1 DRAMs and 64 Mbytes using 16M × 1 DRAMs, programmable refresh timer and 0‑wait‑state interface to 80‑ns DRAMs.
• Serial Interfaces (DUART)  Two‑channel DUART for serial communications, including baud rate generators and modem control functionality as implemented in the device family.
• Timers and System Control  Integrated 16‑bit timer/counter plus programmable interrupt controller and bus watchdog timer for deterministic embedded control and event handling.
• Bus and Chip Selects  24 address lines and 16 data lines with eight programmable chip‑selects to map peripheral memory spaces within the EC000 address range.
• Power and I/O  5 V I/O operation.
• Package and Mounting  144‑lead LQFP (20 × 20 mm) surface‑mount package for compact board integration.
• Operating Temperature  Commercial temperature range: 0 °C to 70 °C.
• Compliance  RoHS compliant.

Typical Applications

• Embedded control  On‑board EC000 core, timers and interrupt controller provide deterministic control for industrial and device control applications.
• Serial communications  Two‑channel DUART and baud rate generation enable modem and serial link handling in communication modules and telemetry equipment.
• Systems with external DRAM  Integrated DRAM controller simplifies designs that require external dynamic memory for buffering, code storage or data logging.
• Compact embedded systems  High functional integration and the 144‑LQFP package reduce BOM and PCB area for space‑constrained products.

Unique Advantages

• Highly integrated system-on-chip: Combines EC000 core with DRAM controller, DUART, timers and interrupt logic to reduce external components and simplify board design.
• Proven 68k code compatibility: EC000 core compatibility with 68000‑class code offers access to established toolchains and existing software assets.
• Memory scalability: DRAM controller support for multiple DRAM densities and 0‑wait‑state access to 80‑ns devices helps scale system memory without redesigning the memory interface.
• Compact surface‑mount package: 144‑LQFP (20 × 20 mm) format enables dense PCB layouts while keeping routing manageable.
• Commercial grade operation: Rated for 0 °C to 70 °C to match a wide range of commercial embedded environments.
• Standards‑oriented serial I/O: Two‑channel DUART implementation supports common serial protocols and modem control for communications‑centric designs.

Why Choose MC68306AG16B?

The MC68306AG16B delivers a balanced combination of a 32‑bit EC000 core and extensive on‑chip peripherals—DRAM controller, DUART, timers and programmable system logic—making it suitable for embedded applications where integration, board space and proven software compatibility are priorities. Its DRAM support and programmable chip‑selects allow flexible memory mapping and capacity growth without extensive external glue logic.

This device is a fit for designers seeking a compact, RoHS‑compliant microprocessor solution that leverages established 68k‑class software ecosystems while minimizing BOM and simplifying system design.

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