NXP Semiconductors LH79524N0F100A1,55

Overview

LH79524N0F100A1 from NXP Semiconductors is a 32-bit ARM720T™-based System-on-Chip with 76.205 MHz CPU speed, 32-bit external data bus, 16 kB on-chip SRAM, and integrated Ethernet MAC, USB 2.0 Full-Speed device controller, and LCD controller supporting up to 800×600 resolution - deployed in industrial HMI and portable medical display systems.

For engineers reviewing the LH79524N0F100A1 datasheet, LH79524N0F100A1 pinout, LH79524N0F100A1 application, or LH79524N0F100A1 equivalent, key selection criteria include its LFBGA208 package, 32-bit memory interface, integrated touch-screen ADC (10-bit, 10-channel), real-time clock with 32.768 kHz oscillator support, and low-power Stop2 mode (25 µA typical).

Technical Context

The LH79524N0F100A1 implements a fully static ARM720T core with MMU for Windows CE™ compatibility and integrates an Advanced High Performance Bus (AHB) backbone connecting Ethernet MAC, USB device, SDRAM controller, and LCD interface. Its memory subsystem supports 512 MB external address space with programmable timing for SDRAM, SRAM, Flash, and ROM.

Power management includes five operational modes (Active, Standby, Sleep, Stop1, Stop2), on-chip linear regulator enabling single 3.3 V supply operation, and separate analog power domains (VDDA0/VSSA0 for ADC; VDDA1/VSSA1 for USB PLL; VDDA2/VSSA2 for system PLL). The integrated 10-bit ADC features dedicated inputs for 4-/5-wire resistive touch screen control with pen-sense interrupt capability.

Key Specifications

Pinout & Package

Package: LFBGA208 (SOT1019-1), 14 mm × 14 mm, 0.8 mm ball pitch, 1.4 mm height - suitable for compact industrial displays requiring high I/O density and thermal performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar SoC applications.

Compared with LH79525N0Q100A1, the LH79524N0F100A1 delivers higher display resolution and memory bandwidth at the cost of larger LFBGA208 footprint; versus LPC3250FET180, it trades raw CPU speed for integrated display and touch functionality, reducing total system component count.

Availability

LH79524N0F100A1 is available at Aetrix Electronics and suitable for industrial HMI terminals, portable medical monitors, handheld test equipment, and smart energy meter displays requiring stable component supply and long-term lifecycle support.

Supply support for LH79524N0F100A1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The LH79524/LH79525 product line was designed as a highly integrated ARM7-based SoC family targeting cost-sensitive, low-power human-machine interface applications with built-in display, touch, networking, and USB connectivity.

FAQ

What is the maximum resolution supported by the LH79524N0F100A1 LCD controller?

The LH79524N0F100A1 LCD controller supports resolutions up to 800×600 pixels. It is compatible with STN, Color STN, HR-TFT, AD-TFT, and TFT panels, and provides 16 bits-per-pixel color depth for TFT displays, enabling 64k direct colors or 256-color palette selection. This capability is confirmed in the official NXP datasheet Rev. 02, Section "Programmable Color LCD Controller".

Does the LH79524N0F100A1 support NAND Flash boot?

Yes, the LH79524N0F100A1 supports NAND Flash boot via its on-chip boot ROM. The boot controller allows initialization from NAND Flash using dedicated nFWE (NAND Flash Write Enable) and nFRE (NAND Flash Read Enable) signals multiplexed on Port C pins PC6 and PC7. This is explicitly documented in the "On-Chip Boot ROM" feature list and signal descriptions for LH79524.

What are the power supply requirements for the LH79524N0F100A1 core and I/O domains?

The LH79524N0F100A1 requires a 1.8 V ± 10% supply for the core (VDDC/VSSC) and 3.3 V for I/O (VDD/VSS). Its integrated linear regulator allows operation from a single 3.3 V input, generating the internal 1.8 V core voltage. Separate analog supplies - VDDA0/VSSA0 (ADC), VDDA1/VSSA1 (USB PLL), and VDDA2/VSSA2 (system PLL) - must be independently decoupled per datasheet recommendations.

How many external interrupt sources does the LH79524N0F100A1 support?

The LH79524N0F100A1 supports 16 standard and 16 vectored IRQ interrupts, with each interrupt individually configurable as either IRQ or FIQ. External interrupt inputs include INT0–INT7 mapped to GPIO pins PB6, PB7, PJ5, PJ7, PJ6, PJ4, PJ2, and CTCLK/INT4/BATCNTL (pin J3), providing eight dedicated hardware interrupt request lines for peripherals and sensors.

Is the LH79524N0F100A1 pin-compatible with the LH79525N0Q100A1?

No, the LH79524N0F100A1 is not pin-compatible with the LH79525N0Q100A1. The LH79524N0F100A1 uses a 208-ball LFBGA package (SOT1019-1), while the LH79525N0Q100A1 uses a 176-lead LQFP package (SOT1017-1). Their pin counts, layouts, and signal allocations differ significantly - for example, the LH79524 exposes D16–D31 and A16–A23 on dedicated balls, whereas the LH79525 omits these due to its 16-bit bus architecture.