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NXP Semiconductors LPC3250FET296/01K
- Part No.:
- LPC3250FET296/01K
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 296-TFBGA
- Datasheet:
-
LPC3250FET296/01K.pdf
- Description:
- IC MCU 16/32BIT ROMLESS 296TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:157
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Product details
Overview
LPC3250FET296/01K from NXP Semiconductors is a 32-bit ARM926EJ-S microcontroller with vector floating-point coprocessor, operating up to 266 MHz. It integrates 256 kB on-chip SRAM, 10/100 Ethernet MAC, LCD controller (STN/TFT), USB 2.0 OTG, dual NAND flash controllers, and a 10-bit ADC with touch screen support - deployed in industrial HMI and networked medical devices requiring real-time connectivity and display control.
For engineers reviewing the LPC3250FET296/01K datasheet, LPC3250FET296/01K pinout, LPC3250FET296/01K application, or LPC3250FET296/01K equivalent, key selection criteria include its TFBGA296 package with 296-ball layout, dual-PLL clock architecture (CPU + USB), multi-layer AHB bus matrix enabling concurrent DMA transfers across Ethernet, LCD, and USB, and hardware-accelerated Jazelle Java execution for embedded runtime efficiency.
Technical Context
The LPC3250FET296/01K implements an ARM926EJ-S core with Harvard architecture, 5-stage pipeline, and full MMU - enabling Linux and other virtual-memory OSes. Its memory subsystem includes 32 kB instruction cache, 32 kB data cache, and 256 kB IRAM, backed by an External Memory Controller supporting DDR/SDR SDRAM and static devices.
Peripherals are distributed across dedicated AHB buses: separate instruction/data paths for CPU, dual DMA channels for USB and Ethernet, plus independent AHB masters for LCD and USB OTG - eliminating arbitration delays unless multiple masters access the same slave simultaneously.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM926EJ-S with MMU, VFP coprocessor, and Jazelle Java acceleration - enables full Linux kernel and deterministic real-time task scheduling. |
| Max Clock Speed | 266 MHz - delivers >300 MIPS performance while maintaining sub-100 mW/MHz active power efficiency. |
| On-chip RAM | 256 kB SRAM - sufficient for boot code, RTOS kernel, and application buffers without external memory dependency. |
| Connectivity | 10/100 Ethernet MAC + USB 2.0 OTG + dual I2C + dual SPI/SSP + dual I2S - supports simultaneous wired network, host/device USB, and audio/video peripheral interfacing. |
| Display Support | LCD controller with STN/TFT support up to 1024×768 and dedicated DMA - enables high-resolution graphical UIs with zero-CPU pixel transfer overhead. |
| Analog Interface | 10-bit, 400 kHz ADC with 3-channel multiplexing and optional touch screen controller mode - provides direct resistive touchscreen digitization without external IC. |
| Package | TFBGA296 (SOT1048-1), 15 mm × 15 mm × 0.7 mm - compatible with standard fine-pitch BGA reflow profiles and high-density PCB layouts. |
Pinout & Package
Package: TFBGA296 (SOT1048-1), 15 mm × 15 mm × 0.7 mm body, 0.65 mm ball pitch, Pb-free, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EMC_D[0]–EMC_D[31] | EMC Data Bus | 32-bit bidirectional data path for DDR/SDR SDRAM and static memory - supports burst transfers at up to 133 MHz clock rate. |
| EMC_A[0]–EMC_A[23] | EMC Address Bus | 24-bit address bus for external memory mapping - enables up to 16 MB static device space and 512 MB SDRAM addressing. |
| GPI_2/CAP2[0]/ENET_RXD3 | Multi-function Input | Shared pin for GPIO, timer capture, and Ethernet RX data line - requires configuration register setting to select Ethernet mode (LPC3250-specific). |
| GPO_10/MCOB2/LCDPWR | Multi-function Output | Drives LCD panel power enable signal when configured as MCOB2 - synchronizes display power sequencing with motor control PWM timing. |
| USB_DAT_VP/U5_RX | USB Transceiver | Differential USB 2.0 full-speed receiver input - connects directly to USB PHY without level-shifting or external termination. |
| ADIN0/TS_YM | ADC Input | Analog input for Y-axis measurement in 4-wire resistive touch screen - referenced to internal VDD_AD (3.3 V) and sampled at 400 kHz max rate. |
Key Features
| Feature | Design Value |
|---|---|
| Multi-layer AHB Matrix | Seven independent AHB masters (CPU, DMA, USB, LCD, Ethernet, etc.) eliminate bus contention - enables concurrent high-bandwidth transfers without software arbitration. |
| Dual NAND Flash Controllers | Separate SLC and MLC NAND interfaces with hardware ECC - supports boot-from-NAND and parallel firmware updates without CPU intervention. |
| Real-Time Clock Domain | Independent 32 kHz RTC power domain with 32-byte scratchpad - maintains timekeeping and alarm functions during full chip sleep (Stop mode) with <1 µA current draw. |
| Keyboard Scanner | Hardware-accelerated 8×8 matrix scan engine - offloads CPU from polling loops and supports debounce, auto-repeat, and interrupt-on-keypress with no firmware overhead. |
| Emulation Trace Buffer | 2048 × 24-bit ETB with JTAG interface - captures instruction and data trace for real-time debugging of complex OS-level interactions and interrupt latency analysis. |
Applications
| Industrial HMI | Networked Medical Device |
|---|---|
Use Scenario: Touch-enabled operator interface for PLC-controlled machinery with Ethernet diagnostics and local display. IC Role / Device Role / Timing Role: Main application processor executing Linux-based GUI framework, managing touch ADC, driving TFT LCD via dedicated DMA, and handling Modbus TCP over Ethernet MAC. Use Value: Integrated LCD controller and Ethernet MAC eliminate two external ICs; 256 kB IRAM enables fast boot and deterministic UI response without external SDRAM initialization delay. | Use Scenario: Portable patient monitor with ECG waveform display, wireless data upload, and battery-backed real-time logging. IC Role / Device Role / Timing Role: Central controller running real-time OS, acquiring analog sensor data via 10-bit ADC, rendering waveforms on STN LCD, and transmitting encrypted logs via USB OTG to clinical PC. Use Value: Hardware RTC with independent power domain ensures accurate timestamping during battery-only operation; USB OTG allows both device-mode (data export) and host-mode (peripheral firmware update) without adapter cables. |
| Consumer Media Hub | Smart Building Gateway |
Use Scenario: Set-top box derivative supporting HDMI video decode, IR remote control, and local storage via SD card and NAND flash. IC Role / Device Role / Timing Role: Application processor executing media framework, decoding audio/video streams using VFP-accelerated math, scanning IR signals via UART, and managing NAND flash wear leveling. Use Value: Vector Floating Point coprocessor accelerates FFT and filtering operations for audio post-processing; dual I2S interfaces enable simultaneous stereo output and SPDIF input. | Use Scenario: IP-connected HVAC controller aggregating sensor data from RS-485 fieldbus and reporting to cloud via Ethernet. IC Role / Device Role / Timing Role: Network gateway processor running lightweight TCP/IP stack, bridging Modbus RTU to Ethernet, managing secure OTA updates, and logging events to internal SRAM. Use Value: Multi-layer AHB allows concurrent Ethernet packet processing and Modbus RTU UART transfers without DMA starvation; 74-interrupt source MIC supports prioritized handling of fieldbus timeouts and security events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ARM9-based microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC3240FET296/01 | Same package and CPU, but lacks LCD controller; retains 10/100 Ethernet MAC and 256 kB SRAM. | Suitable for headless network gateways or Ethernet-to-serial bridges where display is unnecessary. | Select when display capability is not required - reduces BOM cost and simplifies layout by removing LCD signal routing. |
| AT91SAM9G20-CU | ARM926EJ-S core at 400 MHz, 32 kB SRAM, no integrated Ethernet MAC (requires external PHY), no LCD controller, different pinout. | Targeted at cost-sensitive industrial control with external PHY and minimal peripheral integration. | Choose only if higher CPU clock and lower unit cost outweigh loss of integrated Ethernet and LCD - requires redesign of power, clock, and peripheral routing. |
Compared with LPC3240FET296/01, the LPC3250FET296/01 adds full LCD controller functionality enabling direct TFT/STN drive, while AT91SAM9G20-CU trades integrated peripherals for higher clock speed and lower price but demands external components for Ethernet and display - making LPC3250FET296/01 optimal for display-rich, networked embedded systems needing minimal external logic.
Availability
LPC3250FET296/01K is available at Aetrix Electronics and suitable for industrial HMI, networked medical devices, and smart building gateways requiring stable component supply across extended product lifecycles.
Supply support for LPC3250FET296/01K 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 leader focused on secure connectivity solutions for automotive, industrial, and IoT applications.
The LPC32xx family was designed for high-performance, low-power embedded applications requiring rich peripheral integration - specifically targeting Linux-capable HMI, medical instrumentation, and industrial networking where CPU performance, display control, and wired/wireless connectivity converge.
FAQ
What is the maximum operating frequency of the LPC3250FET296/01K?
The LPC3250FET296/01K operates at a maximum CPU clock frequency of 266 MHz, achieved via an on-chip PLL driven by the main oscillator. This frequency is guaranteed across the full −40 °C to +85 °C industrial temperature range and enables >300 MIPS performance with the ARM926EJ-S core. The LPC3250FET296/01K also includes a separate USB PLL generating a precise 48 MHz clock for full-speed USB 2.0 compliance.
Does the LPC3250FET296/01K support booting from NAND flash?
Yes, the LPC3250FET296/01K supports booting directly from NAND flash using its dual NAND flash controllers - one optimized for single-level cell (SLC) and another for multi-level cell (MLC) devices. Boot configuration is selected via the SERVICE pin (C15) at reset, and hardware ECC is applied automatically during boot loading. The LPC3250FET296/01K also supports boot from SPI memory, USB, UART, or static memory.
How many Ethernet MAC interfaces does the LPC3250FET296/01K integrate?
The LPC3250FET296/01K integrates a single 10/100 Ethernet MAC with dedicated DMA controller and RMII/MII interface support. This is confirmed in Table 2 of the datasheet, which lists Ethernet as enabled for LPC3250FET296/01 but disabled for LPC3220 and LPC3230 variants. The MAC supports full-duplex operation, IEEE 802.3 compliance, and hardware checksum offload for IPv4 UDP/TCP headers.
What LCD panel types and resolutions does the LPC3250FET296/01K support?
The LPC3250FET296/01K LCD controller supports both STN and TFT panels with programmable resolution up to 1024 × 768 pixels. It provides 24-bit RGB output, polarity and clock inversion control, and dedicated DMA for zero-CPU pixel transfers. The controller is present only on LPC3230 and LPC3250 variants - confirmed in footnote [1] of Table 3. The LPC3250FET296/01K uses VDD_IOD-supplied GPIOs for LCD data lines (e.g., LCDVD[0]–LCDVD[23]) and dedicated outputs like LCDDCLK and LCDLE.
Is the LPC3250FET296/01K pin-compatible with other LPC32xx family members?
The LPC3250FET296/01K shares the TFBGA296 (SOT1048-1) package and identical pinout with LPC3220FET296/01, LPC3230FET296/01, and LPC3240FET296/01 - all variants use the same mechanical footprint and ball assignment. However, functional pin behavior differs: LCD-related pins (e.g., LCDVD[0], LCDDCLK) are no-ops on non-LCD variants, and Ethernet pins (e.g., ENET_RXD3, ENET_MDC) are inactive on LPC3220/LPC3230. Thus, PCBs designed for LPC3250FET296/01K can accept other LPC32xx TFBGA296 parts, but firmware must match the variant's peripheral enable state.
LPC3250FET296/01K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 296-TFBGA
- Series:
- LPC3200
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM9®
- Core Size:
- 16/32-Bit
- Speed:
- 266MHz
- Connectivity:
- EBI/EMI, Ethernet, I2C, IrDA, Microwire, SPI, SSI, SSP, UART/USART, USB OTG
- Peripherals:
- DMA, I2S, LCD, Motor Control PWM, PWM, WDT
- Number of I/O:
- 51
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 256K x 8
- Voltage - Supply (Vcc/Vdd):
- 0.9V ~ 3.6V
- Data Converters:
- A/D 3x10b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC3250FET296/01K FAQ
1.How can I place an order for LPC3250FET296/01K through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC3250FET296/01K on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LPC3250FET296/01K reliable?
The price and inventory of LPC3250FET296/01K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC3250FET296/01K is usually 5 days.
3.What payment methods are accepted for LPC3250FET296/01K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC3250FET296/01K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC3250FET296/01K?
LPC3250FET296/01K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC3250FET296/01K order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LPC3250FET296/01K?
For technical support, including LPC3250FET296/01K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC3250FET296/01K requirements.
6.How does Aetrix verify that LPC3250FET296/01K is sourced from the original manufacturer or authorized distributors?
All LPC3250FET296/01K products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LPC3250FET296/01K meets industry standards.
7.What is the process for return or replacement of LPC3250FET296/01K?
All LPC3250FET296/01K units undergo pre-shipment inspection (PSI). If there is an issue with LPC3250FET296/01K, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LPC3250FET296/01K part is unused and in its original packaging.
Return procedure for LPC3250FET296/01K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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