LPC2925FBD100,551

Microcontrollers Overview

The LPC2925FBD100,551 is an ARM9-based microcontroller featuring a 125 MHz ARM968E-S core. It integrates 512 kB flash memory, 40 kB SRAM (including two 16 kB blocks), and 16 kB EEPROM. The device includes dual 10-bit ADCs, USB 2.0 full-speed controller, dual CAN, dual LIN, three Q-SPIs, and two UARTs with RS-485 support. It operates on a dual power supply of 1.8 V for the core and 3.3 V for I/O within a 100-pin LQFP package.

Microcontrollers Feature Summary

• Dual Tightly Coupled Memories (TCM) for high-performance instruction and data execution
• Integrated USB 2.0 full-speed device controller with dedicated DMA and PHY
• Flexible Clock Generation Unit (CGU) enabling dynamic clock gating and scaling
• Comprehensive connectivity including CAN, LIN, Q-SPI, and multiple UART interfaces

Microcontrollers Applications

• Consumer electronics requiring embedded control
• Industrial automation systems
• Communication equipment

Microcontrollers Procurement Notes

Verify the specific ordering suffix ',551' against official NXP documentation to confirm tape-and-reel packaging or specific environmental ratings. Ensure compatibility with existing board designs regarding the 100-pin LQFP footprint and dual voltage requirements (1.8V core, 3.3V I/O). Confirm that the component meets the required operating temperature range of -40 °C to +85 °C for your application environment.

Microcontrollers Selection Notes

Select this MCU when high code density and performance are needed from an ARM9 architecture. The inclusion of both CAN and LIN controllers makes it suitable for mixed-network environments. Consider the 512 kB flash capacity for complex applications. Evaluate the dual power supply requirement (1.8V/3.3V) during power budgeting and PCB layout planning compared to single-supply alternatives.

Microcontrollers Part Context

This part belongs to the LPC292x family, which combines ARM968E-S cores with extensive peripheral sets. It serves as a bridge between high-performance processing and cost-effective integration for networking and control tasks. The family shares architectural similarities with other ARM9 MCUs but distinguishes itself through integrated LIN and USB capabilities alongside traditional industrial interfaces.

Microcontrollers Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation. Migration to newer NXP families may require significant software and hardware redesign due to architectural differences between ARM9 and modern Cortex-M cores.