MC68306EH16B

The MC68306EH16B is an integrated microprocessor IC from NXP Semiconductors in the MC68306 series. It features an EC000 single 32-bit core running at 16 MHz and is supplied in a 132-pin PQFP surface-mount package (24.13 × 24.13 mm).

Designed for embedded control and general computing, this device combines processor capability with on-chip system elements such as a DRAM controller and serial interfaces to reduce component count, board space and design time for systems that require serial communication and DRAM support.

Key Features

• Core & Architecture  EC000 single 32-bit core running at 16 MHz; the EC000 core provides established 68000-class architecture and performance characteristics.
• Memory & DRAM Controller  Integrated DRAM controller supports dynamic RAM configurations and provides a programmable refresh timer for system memory management.
• Serial Interfaces  On-chip DUART (two-channel serial I/O) with baud rate generators and modem control for robust serial communication.
• Timers & Interrupts  Integrated 16-bit timer/counter and a programmable interrupt controller for periodic interrupts, event counting and real-time responsiveness.
• System Integration  Multiple chip-selects and bus management features provide flexible memory and peripheral mapping within the EC000 address space.
• Electrical & Mounting  5 V I/O operation and surface-mount mounting type suitable for standard PCB assembly processes.
• Package  Supplier device package: 132-PQFP (24.13 × 24.13 mm), 132-BQFP bumpered option noted for board-level protection and footprint efficiency.
• Operating Range & Compliance  Specified operating temperature 0 °C to 70 °C and RoHS compliant for environmental conformance.

Typical Applications

• Embedded Control  Single-chip integration of processor, timers, and memory controller makes it suitable for embedded control systems and appliance controllers.
• Serial Communication Systems  On-chip DUART and modem control functions enable robust serial link and communications product designs.
• DRAM-Based Systems  Integrated DRAM controller supports systems that require external dynamic RAM, reducing external glue logic.
• Real-Time Applications  EC000 core characteristics and integrated timers/interrupt controller support real-time kernels and deterministic embedded software.

Unique Advantages

• Highly Integrated Solution: Integration of EC000 core, DRAM controller, DUART and timers reduces BOM and PCB area compared with multi-chip designs.
• Established Architecture Compatibility: EC000 core provides compatibility with 68000-class architectures and associated development tools and software ecosystems.
• Design Time Reduction: On-chip system elements such as chip selects and refresh circuitry simplify system design and accelerate time to prototype.
• Surface-Mount PQFP Package: 132-pin PQFP (24.13 × 24.13 mm) balances pin count and board-level density for compact embedded designs.
• Single-Supply 5 V Operation: Standard 5 V I/O simplifies power-rail design in legacy and existing system architectures.
• RoHS Compliant: Meets environmental compliance requirements for modern electronics manufacturing.

Why Choose MC68306EH16B?

The MC68306EH16B positions itself as a compact, integrated microprocessor solution for embedded systems that demand 68000-class architecture and on-chip system peripherals. With an EC000 32-bit core, built-in DRAM controller, DUART serial channels and integrated timers, it streamlines hardware design while supporting real-time software ecosystems.

This device is well suited for engineers and procurement teams building embedded control, serial communication or DRAM-based systems who value reduced component count, clear memory/peripheral mapping and a standardized 5 V surface-mount package—supporting efficient design cycles and reliable system implementations.

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