LPC1112FHN24/202J

Microcontrollers Overview

The LPC1112FHN24/202J is a 32-bit ARM Cortex-M0 microcontroller from the NXP LPC1100L series. It features 16 kB of on-chip flash programming memory and 4 kB of SRAM. The device operates at CPU frequencies up to 50 MHz and supports a single power supply ranging from 1.8 V to 3.6 V. It includes one UART, one I2C interface, one SPI controller, four general-purpose timers, and a 10-bit ADC with six available input channels. The component utilizes an HVQFN24 package and provides 19 general-purpose I/O pins.

Microcontrollers Feature Summary

• Supports In-System Programming (ISP) and In-Application Programming (IAP) via on-chip bootloader software
• Includes a programmable windowed watchdog timer for system reliability
• Features configurable open-drain mode for GPIO pins
• Integrates power profiles in boot ROM to optimize performance and minimize power consumption

Microcontrollers Applications

• eMetering
• Lighting
• Alarm systems
• White goods

Microcontrollers Procurement Notes

Verify that the ordering suffix J confirms the extended temperature range of -40 °C to +105 °C as specified in the datasheet. Confirm the HVQFN24 package dimensions match the design requirements. Ensure the specific revision level aligns with manufacturing constraints. Cross-reference the part number against the official NXP ordering information table to validate all configuration parameters before procurement.

Microcontrollers Selection Notes

Select this variant when a compact HVQFN24 footprint is required alongside the specific memory capacity of the LPC1112. The LPC1100L series designation indicates the inclusion of advanced power management features and the windowed watchdog timer not present in standard LPC1100 parts. Consider the reduced pin count compared to larger packages when designing the schematic layout.

Microcontrollers Part Context

This component belongs to the LPC11xx family of low-cost 32-bit microcontrollers designed to replace legacy 8/16-bit architectures. The LPC1100L sub-series specifically enhances the base architecture with additional power optimization capabilities and safety features like the windowed watchdog timer, targeting cost-sensitive embedded applications requiring efficient power usage.

Microcontrollers Replacement Considerations

LPC1112FHN24/102 offers identical hardware specifications but lacks the extended temperature rating.