MC68340AG25E

The MC68340AG25E is a single-core 32-bit CPU32 microprocessor operating at 25 MHz in a 144-LQFP (20×20) surface-mount package. It integrates core processor functionality with on-chip system modules—including DMA, timer and serial modules—and DRAM controller resources to support embedded designs that require integrated data movement and serial communication.

Designed for embedded applications operating at 5 V I/O and within an ambient range of 0 °C to 70 °C, the MC68340AG25E provides a documented architecture suited to development environments requiring deterministic processor control and built-in system integration features.

Key Features

• CPU Core  CPU32 single-core, 32-bit processor running at 25 MHz for deterministic embedded processing.
• On-chip DMA and System Modules  Integrated DMA controller and system integration modules reduce external logic for data transfers and peripheral coordination (as documented in the MC68340 user manual).
• Memory Support  DRAM controller included to interface with external dynamic RAM, simplifying memory subsystem design.
• Serial and Timing Peripherals  USART/serial module and dedicated timer modules provide standard serial communication and timing facilities for embedded control tasks.
• Package and Mounting  144-LQFP (20×20) surface-mount package for compact board integration and high pin count routing.
• Electrical and Environmental  5 V I/O operation with an operating temperature range of 0 °C to 70 °C; RoHS compliant.
• Test Access  Documented support for IEEE 1149.1 test access is included in the device documentation, enabling boundary-scan testability in production environments.

Typical Applications

• Embedded control systems  Use the MC68340AG25E as a 32-bit control processor where integrated DMA, timers and USART simplify control loop implementation and I/O handling.
• Memory-interface designs  Systems that require external DRAM can leverage the on-chip DRAM controller to manage memory access without separate controller ICs.
• Communications and serial I/O  Designs needing standard serial links can use the integrated USART for device-to-device or host communication.

Unique Advantages

• Integrated DMA and peripherals: Reduces the need for additional controller ICs by providing built-in DMA, timers and serial modules, simplifying BOM and PCB layout.
• DRAM controller on-chip: Simplifies memory subsystem design by providing dedicated support for external dynamic RAM.
• Compact high-pin-count package: 144-LQFP (20×20) offers a balance of I/O density and footprint for embedded PCBs.
• Documented architecture and test access: Comprehensive user manual coverage (including DMA, timers, serial modules and IEEE 1149.1 test access) supports development and manufacturing test planning.
• RoHS compliant: Meets environmental compliance requirements for many commercial embedded applications.

Why Choose MC68340AG25E?

The MC68340AG25E positions itself as a practical 32-bit embedded processor option where integrated DMA, DRAM control and serial/timing peripherals reduce external component count and streamline system design. Its documented CPU32 architecture and included system modules make it appropriate for engineers building embedded systems that require coordinated data movement and peripheral control at 25 MHz.

With 5 V I/O, surface-mount 144-LQFP packaging and a documented temperature range of 0 °C to 70 °C, the MC68340AG25E delivers a clear, verifiable set of capabilities for commercial embedded applications while maintaining manufacturing testability through IEEE 1149.1 support and comprehensive documentation.

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