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NXP Semiconductors LPC3240FET296,551
- Part No.:
- LPC3240FET296,551
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 296-TFBGA
- Datasheet:
-
LPC3240FET296,551.pdf
- Description:
- IC MCU 16/32BIT ROMLESS 296TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,862
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Product details
Overview
LPC3240FET296 from NXP Semiconductors is a 32-bit ARM926EJ-S microcontroller with integrated 10/100 Ethernet MAC, 256 kB on-chip SRAM, USB 2.0 On-The-Go, and external memory controller supporting DDR/SDR SDRAM and NAND flash - designed for industrial network control and embedded gateway applications operating at up to 266 MHz.
For engineers reviewing the LPC3240FET296 datasheet, LPC3240FET296 pinout, LPC3240FET296 application, or LPC3240FET296 equivalent, key selection criteria include its TFBGA296 package, dual NAND flash controllers (SLC/MLC), 74-interrupt capability via MIC/SIC architecture, and Ethernet + USB OTG coexistence in a single low-power SoC.
Technical Context
The LPC3240FET296 implements an ARM926EJ-S core with Harvard architecture, 5-stage pipeline, MMU for virtual memory support, and hardware-accelerated Jazelle Java execution. It integrates a Vector Floating Point (VFP) coprocessor and dual 32 kB instruction/data caches for deterministic real-time performance.
Its multi-layer AHB matrix provides dedicated buses for CPU (instruction/data), DMA (two data paths), USB, LCD, and Ethernet - eliminating arbitration delays unless multiple masters access the same slave simultaneously. The external memory controller supports DDR/SDR SDRAM, static devices, and two independent NAND interfaces (SLC and MLC).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM926EJ-S with MMU, VFP coprocessor, and Jazelle Java acceleration - enables Linux/RTOS virtual memory and DSP-intensive firmware. |
| Max CPU Frequency | 266 MHz - delivers high throughput for protocol stacks (TCP/IP, USB, SD) without external clocking complexity. |
| On-chip SRAM | 256 kB IRAM - sufficient for boot code, stack, heap, and real-time buffers without external RAM dependency. |
| Ethernet Interface | 10/100 Mbps MAC with dedicated DMA - offloads packet processing from CPU and supports full-duplex operation. |
| USB Support | USB 2.0 Full-Speed OTG with integral DMA and dedicated 48 MHz PLL - enables host/device/OTG roles without external PHY clock generation. |
| NAND Flash Controllers | Dual independent controllers: one for SLC, one for MLC NAND - allows concurrent boot from SLC and data storage on MLC. |
| ADC | 10-bit, 400 kHz sampling rate with touch screen sense option - supports resistive touchscreen input with minimal external components. |
Pinout & Package
Package: TFBGA296 (SOT1048-1), 15 mm × 15 mm × 0.7 mm body, 0.65 mm ball pitch, 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 and byte-lane masking via BLS[0–3]. |
| EMC_A[0]–EMC_A[23] | EMC Address Bus | 24-bit address bus for SDRAM row/column addressing and static device selection - configurable as GPIO Port 1 bits [0–23]. |
| EMC_CS0–EMC_CS3 | Chip Select Outputs | Four active-low chip selects enabling up to four independent static memory devices or SDRAM banks. |
| GPI_2/CAP2[0]/ENET_RXD3 | Multi-function Input | Shared pin for general-purpose input, Timer 2 capture, or Ethernet receive data 3 - requires mode configuration at boot. |
| GPO_16/MCOB0/LCDENAB/LCDM | Multi-function Output | Configurable as motor control PWM output B, LCD STN AC bias, or TFT data enable - supports mixed peripheral use per application need. |
Key Features
| Feature | Design Value |
|---|---|
| Multi-layer AHB Matrix | Dedicated buses eliminate inter-master arbitration delay - ensures deterministic latency for Ethernet, USB, and LCD DMA transfers. |
| Dual NAND Flash Controllers | Independent SLC and MLC controllers allow boot-from-SLC + data-on-MLC - improves reliability and storage density in field-upgradable systems. |
| 74-Source Interrupt Architecture | Master Interrupt Controller (MIC) + two Slave Interrupt Controllers (SIC) - enables prioritized, low-latency response across complex I/O and timer events. |
| Real-Time Clock (RTC) | Independent power domain with 32 kHz oscillator and 32-byte scratchpad - maintains timekeeping and retains state during full system sleep. |
| Keyboard Scanner | Hardware-accelerated 8×8 matrix scan - reduces CPU load and enables responsive human interface without polling overhead. |
Applications
| Industrial Gateway | Medical Data Logger |
|---|---|
Use Scenario: Edge node aggregating Modbus RTU, CAN, and analog sensor data before forwarding via Ethernet to cloud infrastructure. IC Role / Device Role / Timing Role: Central protocol processor with integrated Ethernet MAC, UARTs, ADC, and RTC - handles real-time acquisition, timestamping, and TCP/IP stack offload. Use Value: Eliminates external PHY, SDRAM, and NAND controller - reduces BOM count and PCB area while maintaining deterministic timing for sensor sampling. |
Use Scenario: Portable patient monitor recording ECG, SpO₂, and temperature with local display and USB-based data export. IC Role / Device Role / Timing Role: System-on-chip managing analog front-end ADC, touch-screen UI, USB device mode, and battery-backed RTC. Use Value: Single-chip integration of 10-bit ADC with touch sense, USB OTG, and 256 kB SRAM enables compact, low-power design without external memory or interface ICs. |
| Network-Controlled HMI | Secure Embedded Appliance |
Use Scenario: Factory-floor HMI panel with Ethernet connectivity, local LCD display, and keypad input for machine status monitoring. IC Role / Device Role / Timing Role: Display controller (STN/TFT), Ethernet endpoint, and keyscan engine - drives 1024×768 resolution with dedicated LCD DMA. Use Value: Integrated LCD controller with programmable timing and 51 GPIOs simplifies interface to diverse panel types and mechanical keypads. |
Use Scenario: Network-connected building automation controller requiring secure boot, unique serial ID, and tamper-resistant firmware updates. IC Role / Device Role / Timing Role: Secure execution platform with user-accessible unique chip ID, boundary scan (BSDL), and JTAG debug lock options. Use Value: Unique serial ID enables device authentication; boundary scan supports production test coverage; JTAG security prevents unauthorized firmware extraction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ARM9-based microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC3250FET296/01 | Includes LCD controller (LPC3240 omits it); identical Ethernet, SRAM, and package. | Required for TFT/STN display integration; unnecessary if display is handled externally or omitted. | Select LPC3250 only when native LCD driving is needed - avoids unused IP and potential EMI from unused LCD clock paths. |
| AT91SAM9G20-CU | ARM926EJ-S at 400 MHz, 32 kB SRAM, no integrated Ethernet MAC (requires external PHY), no NAND controllers. | Suitable for higher-clock-speed compute tasks but adds external components for networking and storage. | Choose AT91SAM9G20 only when maximum CPU throughput outweighs integration benefits - increases BOM, layout complexity, and power delivery requirements. |
Compared with LPC3250FET296/01, the LPC3240FET296 saves board space and cost by omitting the LCD controller while retaining full Ethernet, USB OTG, and dual NAND support; versus AT91SAM9G20-CU, it delivers lower system-level integration effort and reduced external component count for connected embedded applications.
Availability
LPC3240FET296 is available at Aetrix Electronics and suitable for industrial gateways, medical data loggers, and network-controlled HMIs requiring stable component supply across extended product lifecycles.
Supply support for LPC3240FET296 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 engineered for high-integration, low-power embedded control - targeting applications needing Ethernet, USB OTG, NAND flash, and rich peripheral sets in a single ARM9 SoC.
FAQ
What is the operating temperature range for the LPC3240FET296?
The LPC3240FET296 is rated for industrial operation from −40 °C to +85 °C. This range is confirmed in Table 2 of the official NXP datasheet (Rev. 2.1, June 2014) and applies to all variants in the LPC3220/30/40/50 series with the 'F' suffix. The device uses thermal-aware power management and on-chip voltage regulation to maintain stability across this full range.
Does the LPC3240FET296 include an integrated Ethernet PHY?
No, the LPC3240FET296 integrates only a 10/100 Ethernet MAC with dedicated DMA - not a physical layer (PHY). An external PHY (e.g., LAN8720A) must be used, connected via RMII or MII interface. This is explicitly stated in Section 2 "Features and benefits" and confirmed in the block diagram (Fig 1), where "ethernet PHY interface" appears outside the LPC3240FET296 die boundary.
How much internal SRAM does the LPC3240FET296 provide, and is it cache-coherent?
The LPC3240FET296 provides 256 kB of on-chip static RAM (IRAM), as specified in Table 2 of the datasheet. This IRAM is directly accessible by the ARM926EJ-S core and is not cache-coherent with the 32 kB instruction or data caches - software must manage cache maintenance (e.g., clean/invalidate) when sharing data between cached and IRAM regions.
Can the LPC3240FET296 boot directly from NAND flash?
Yes, the LPC3240FET296 supports direct boot from NAND flash using its dedicated SLC NAND controller. Boot mode is selected via the SERVICE pin (C15) at reset, and the ROM bootloader initializes the NAND interface, reads the first page, and executes code from IRAM - a capability documented in Section 2 and verified in the "Selectable boot-up" feature list.
What debug interfaces are supported on the LPC3240FET296?
The LPC3240FET296 supports standard ARM JTAG (TCK, TMS, TDO, TDI, nTRST, RTCK) and includes an Emulation Trace Buffer (ETB) with 2048 × 24-bit RAM for instruction/data trace. Debug access is enabled via DBGEN (G14), and boundary scan is supported for board-level testing - all detailed in Sections 2 and 6.2 of the datasheet.
LPC3240FET296,551 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 296-TFBGA
- Series:
- LPC3200
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM926EJ-S
- Core Size:
- 16/32-Bit
- Speed:
- 266MHz
- Connectivity:
- EBI/EMI, Ethernet, I2C, IrDA, Microwire, SPI, SSI, SSP, UART/USART, USB OTG
- Peripherals:
- DMA, I2S, 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
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC3240FET296,551 FAQ
1.How can I place an order for LPC3240FET296,551 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC3240FET296,551 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 LPC3240FET296,551 reliable?
The price and inventory of LPC3240FET296,551 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC3240FET296,551 is usually 5 days.
3.What payment methods are accepted for LPC3240FET296,551?
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LPC3240FET296,551 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC3240FET296,551 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 LPC3240FET296,551?
For technical support, including LPC3240FET296,551 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC3240FET296,551 requirements.
6.How does Aetrix verify that LPC3240FET296,551 is sourced from the original manufacturer or authorized distributors?
All LPC3240FET296,551 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 LPC3240FET296,551 meets industry standards.
7.What is the process for return or replacement of LPC3240FET296,551?
All LPC3240FET296,551 units undergo pre-shipment inspection (PSI). If there is an issue with LPC3240FET296,551, 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 LPC3240FET296,551 part is unused and in its original packaging.
Return procedure for LPC3240FET296,551:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPC3240FET296,551 Tags
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