MC68LC302CPU20CT

The MC68LC302CPU20CT is an integrated multiprotocol microprocessor featuring a static M68000 core running at 20 MHz. Designed for embedded and industrial applications, it combines a single 8/16-bit M68000-class core with on-chip system peripherals and communications support to reduce external component count and board complexity.

With on-chip DMA, dual-port RAM, timers including a watchdog and periodic interrupt timer, and a compact 100-LQFP (14×14) package, the MC68LC302CPU20CT addresses space-constrained and industrial designs requiring reliable operation across a –40°C to 85°C temperature range.

Key Features

• Core & Architecture  Static M68000 core supporting 8- or 16-bit system operation at a system clock of 20 MHz, providing a familiar M68000 family architecture for embedded designs.
• Memory & Bus  On-chip 1152-byte dual-port RAM and support for programmable address mapping; glueless interface to EPROM, SRAM, Flash EPROM, and EEPROM simplifies memory interfacing and boot configurations.
• Communications & Co-processor  Integrated communications processor (RISC CPM) with two independent full-duplex serial communications controllers (SCCs) supporting protocols such as HDLC/SDLC, UART, and BISYNC.
• DMA & Interrupts  Independent direct memory access (IDMA) controller and an interrupt controller with two modes of operation enable efficient data movement and flexible interrupt handling.
• Timers & Watchdog  Three on-chip timers including a watchdog timer and a Periodic Interrupt Timer (PIT) provide system timing, supervisory reset capability, and periodic wake-up or scheduling functions.
• Clock & Power  On-chip clock generator with output and on-chip PLL allowing operation with 32 kHz or 4 MHz crystals for flexible clock sources and simplified clocking.
• System Control & Boot  Programmable chip-select logic (four lines) with wait-state generation, system control logic including hardware watchdog, and the ability to boot in 8-bit mode and switch to 16-bit operation.
• Package & Environmental  Surface-mount 100-LQFP (14×14) low-profile package suitable for height-restricted assemblies; industrial qualification with an operating temperature range of –40°C to 85°C and RoHS compliance.

Typical Applications

• Industrial Control  Use as an embedded controller for machine control, I/O handling, and real-time supervisory tasks where on-chip DMA, timers, and industrial temperature operation are required.
• Communications Equipment  Integration of the CPM and SCCs enables protocol handling (HDLC/SDLC, UART, BISYNC) for modem controllers, protocol converters, and serial communication modules.
• Portable & Space-Constrained Systems  Low-profile 100-LQFP packaging and on-chip peripherals reduce board area and BOM for portable or height-restricted applications.
• Embedded System Prototyping  Familiar M68000-family core and flexible memory interface facilitate development and migration for legacy M68k-based embedded platforms.

Unique Advantages

• Highly integrated functionality: On-chip DMA, dual-port RAM, timers, PIO and communications resources reduce external components and simplify board design.
• Flexible memory interfacing: Glueless connections to common memory types and four programmable chip-selects simplify system memory layout and boot strategies.
• Compact, low-profile package: 100-LQFP (14×14) form factor minimizes board space while keeping required I/O and peripheral access.
• Industrial temperature range: Rated for –40°C to 85°C operation to meet the needs of robust embedded and industrial systems.
• Protocol-capable communications: Built-in CPM and SCCs support common serial protocols for streamlined communications subsystem design.
• Standards-compliant supply and RoHS status: 5 V I/O voltage and RoHS compliance for alignment with standard embedded power domains and environmental requirements.

Why Choose MC68LC302CPU20CT?

The MC68LC302CPU20CT delivers a balanced combination of M68000-family processing, integrated communications and system peripherals, and industrial-grade operating range—making it suitable for embedded designers who need a compact, well-integrated MPU with on-chip DMA, timers, dual-port RAM and programmable chip selects. Its 100-LQFP low-profile package and glueless memory interfaces help reduce BOM and board footprint while preserving flexible system design options.

Manufactured by NXP Semiconductors and part of the MC68LC302 family, this device is appropriate for projects targeting industrial and embedded applications that require a dependable M68k-class core with built-in communications and system control features.

Request a quote or submit an inquiry to obtain pricing, availability, and evaluation options for the MC68LC302CPU20CT.