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NXP Semiconductors LPC4357JET256,551
- Part No.:
- LPC4357JET256,551
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 256-LBGA
- Datasheet:
-
LPC4357JET256,551.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 256LBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,746
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Product details
Overview
LPC4357JET256 from NXP Semiconductors is a dual-core ARM Cortex-M4F/M0 microcontroller with 1 MB flash, 136 kB SRAM, and integrated Ethernet, dual high-speed USB, LCD controller, and EMC-designed for real-time industrial control and embedded audio systems requiring deterministic processing and peripheral offload.
For engineers reviewing the LPC4357JET256 datasheet, LPC4357JET256 pinout, LPC4357JET256 application, or LPC4357JET256 equivalent, key selection criteria include dual-core asymmetric execution, LBGA256 package compatibility, IEEE 1588 time stamping support, SPIFI execute-in-place capability, and LCD controller availability on this specific variant.
Technical Context
The LPC4357JET256 implements a tightly coupled dual-core architecture where the Cortex-M4F (up to 204 MHz) handles main application tasks with hardware FPU and MPU, while the Cortex-M0 co-processor (also up to 204 MHz) manages peripheral handling and real-time I/O offload via shared AHB matrix and GIMA event routing.
Its memory subsystem includes dual-bank flash (512 kB each), 16 kB EEPROM, and multiple SRAM blocks (32 kB AHB, 16+16 kB AHB, 32+40 kB local) with independent power-down control-enabling secure boot, OTA updates, and low-power operation without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Cores | ARM Cortex-M4F @ 204 MHz + Cortex-M0 @ 204 MHz; enables asymmetric task partitioning with shared memory and event-driven inter-core communication. |
| Flash Memory | 1 MB dual-bank flash (512 kB per bank); supports concurrent read/erase, secure boot, and in-application programming without interruption. |
| SRAM | 136 kB total across five blocks (32+16+16+32+40 kB); allows selective retention and power gating per block during low-power modes. |
| Peripherals | 10/100T Ethernet MAC with IEEE 1588 v2 timestamping, two HS USB 2.0 interfaces (one with on-chip PHY, one with ULPI), LCD controller (1024×768), EMC, SPIFI, SCTimer/PWM, and dual 10-bit ADCs (400 kS/s). |
| Package | LBGA256 (SOT740-2); 17 mm × 17 mm × 1 mm body with 256 balls; supports high I/O count and thermal performance for industrial PCB layouts. |
| Temperature Range | –40 °C to +105 °C (industrial grade); validated for extended operation in motor drives, e-metering, and white goods environments. |
| Power Supply | Single 3.3 V supply (2.4 V–3.6 V) with on-chip DC-DC converter; RTC domain separable for battery backup with 256 B retention RAM. |
Pinout & Package
Package: LBGA256 (SOT740-2), plastic low-profile ball grid array, 17 mm × 17 mm × 1 mm body, 256-ball layout with perimeter I/O and internal power/ground arrays optimized for signal integrity and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0 | GPIO0[0] / SSP1_MISO / ENET_RXD1 / I2S0_TX_WS | Multi-function digital I/O supporting Ethernet receive, SPI slave interface, and I2S word select-configurable via SCU registers for flexible peripheral mapping. |
| P1_15 | GPIO0[2] / U2_TXD / ENET_RXD0 / T0_MAT1 | Combines UART2 transmit, Ethernet receive data line 0, and timer match output-enables synchronized timing-critical I/O in motor control loops. |
| P1_19 | ENET_TX_CLK / SSP1_SCK / CLKOUT / I2S0_RX_MCLK | Dedicated clock-capable pin supporting Ethernet reference clock, synchronous serial clock, system clock output, and I2S master clock-critical for jitter-sensitive audio and precision timing applications. |
| P1_17 | GPIO0[12] / U2_UCLK / ENET_MDIO / T0_CAP3 / CAN1_TD | Configurable as USART2 clock, Ethernet MDIO, timer capture input, or CAN transmit-facilitates mixed-protocol communication without external logic. |
| P1_18 | GPIO0[13] / U2_DIR / ENET_TXD0 / T0_MAT3 / CAN1_RD | Enables RS-485 direction control, Ethernet transmit data, timer match output, and CAN receive-supports multi-protocol fieldbus integration in automation nodes. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core asymmetric processing | Offloads time-critical peripherals (USB, Ethernet, ADC) to Cortex-M0, freeing Cortex-M4F for complex algorithms-reducing latency and improving determinism in real-time control. |
| SPIFI with execute-in-place (XIP) | Quad-SPI interface delivering up to 52 MB/s; enables direct code execution from external flash-eliminating SRAM footprint constraints for large firmware images. |
| State Configurable Timer (SCTimer/PWM) | Event-driven, programmable state machine for PWM generation, input capture, and waveform synthesis-replaces multiple discrete timers in motor control and lighting applications. |
| Global Input Multiplexer Array (GIMA) | Hardware crossbar connecting GPIO, timers, ADCs, and SCT outputs-enables zero-CPU-latency event chaining for closed-loop control without software overhead. |
| IEEE 1588-2008 v2 time stamping | Hardware-accelerated timestamp insertion in Ethernet frames at MAC layer-provides sub-microsecond synchronization accuracy for industrial Ethernet protocols (e.g., PROFINET IRT, EtherCAT). |
Applications
| Industrial Motor Control | Embedded Audio Processing |
|---|---|
Use Scenario: Three-phase PMSM/BLDC drive with field-oriented control (FOC), current sensing, and real-time commutation. IC Role / Device Role / Timing Role: LPC4357JET256 serves as main motion controller with motor control PWM, QEI, dual ADCs, and SCTimer for precise phase timing and current loop execution at ≤10 µs intervals. Use Value: Dual-core partitioning isolates FOC math (M4F) from commutation logic (M0), enabling 20 kHz PWM switching with <5 µs jitter-meeting IEC 61800-3 EMC requirements. | Use Scenario: Multi-channel audio playback/recording system with I2S DAC/ADC, equalization, and USB audio class streaming. IC Role / Device Role / Timing Role: LPC4357JET256 acts as audio SoC with dual I2S interfaces, 10-bit DAC (400 kS/s), two 10-bit ADCs, and USB 2.0 device stack-handling sample rate conversion and buffer management in hardware. Use Value: Dedicated I2S TX/RX clocks (P1_19, P1_19) and DMA-backed audio buffers eliminate CPU load during 48 kHz/24-bit streaming-achieving <10 ms end-to-end latency. |
| Smart Energy Metering | Industrial HMI with LCD |
Use Scenario: DIN-rail mounted e-meter with tariff calculation, tamper detection, RS-485 PLC communication, and secure data logging. IC Role / Device Role / Timing Role: LPC4357JET256 functions as metering MCU with RTC (battery-backed), 256 B backup RAM, AES acceleration in ROM, and dual C_CAN for utility backhaul. Use Value: Independent RTC power domain and alarm timer maintain accurate timekeeping during mains failure; 16 kB EEPROM stores calibration constants with 100k-cycle endurance. | Use Scenario: Panel-mounted human-machine interface with 800×480 TFT display, touch controller, and Ethernet diagnostics. IC Role / Device Role / Timing Role: LPC4357JET256 integrates LCD controller (1024×768), RGB interface, CLUT, and DMA-based frame buffering-driving displays without external video memory. Use Value: On-chip LCD controller reduces BOM cost by eliminating external video processor; 136 kB SRAM accommodates dual-frame buffers for tear-free 60 Hz refresh. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-core ARM microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC4357FET256 | Identical silicon and feature set but rated for –40 °C to +85 °C operating range; lacks extended temperature qualification. | Suitable for commercial/office equipment where ambient temperature remains below 85 °C. | Select LPC4357FET256 only when industrial temperature range is not required-reduces cost without functional trade-off. |
| LPC4337JET256 | Same package and temperature rating, but omits LCD controller and reduces flash to 512 kB (256 kB per bank); retains all other peripherals including Ethernet, USB, and dual cores. | Targeted at headless industrial controllers where display output is unnecessary. | Choose LPC4337JET256 when LCD functionality is unused-saves flash resources and simplifies firmware validation for non-display applications. |
Compared with LPC4357FET256, the LPC4357JET256 adds extended temperature operation critical for outdoor or enclosed industrial enclosures; compared with LPC4337JET256, it provides full LCD controller capability essential for local HMI-making it the only option among these three that satisfies both extended temp and display requirements.
Availability
LPC4357JET256 is available at Aetrix Electronics and suitable for industrial motor control, embedded audio systems, and smart energy metering requiring stable component supply across long production lifecycles and rigorous environmental conditions.
Supply support for LPC4357JET256 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications-with expertise in ARM-based microcontrollers and edge processing.
The LPC43xx product line was designed for high-performance embedded control requiring real-time determinism, rich peripheral integration, and dual-core flexibility-targeting industrial automation, audio, and metering markets where reliability and longevity are paramount.
FAQ
What is the maximum CPU frequency supported by the LPC4357JET256?
The LPC4357JET256 supports a maximum CPU frequency of 204 MHz for both its ARM Cortex-M4F and Cortex-M0 cores. This frequency is achieved using internal PLLs fed from the crystal oscillator (1–25 MHz) or the 12 MHz internal RC oscillator, with voltage and temperature monitoring ensuring stable operation across the full –40 °C to +105 °C range.
Does the LPC4357JET256 include an LCD controller, and what resolutions does it support?
Yes, the LPC4357JET256 includes a fully integrated LCD controller supporting programmable display resolutions up to 1024 H × 768 V. It supports monochrome and color STN panels, TFT color panels, 1/2/4/8 bpp CLUT modes, and 16/24-bit direct pixel mapping-making it suitable for industrial HMIs and medical displays requiring local graphics rendering.
How many USB interfaces does the LPC4357JET256 provide, and what are their capabilities?
The LPC4357JET256 provides two high-speed USB 2.0 interfaces: USB0 supports Host/Device/OTG with on-chip high-speed PHY and DMA; USB1 supports Host/Device with on-chip full-speed PHY and ULPI interface to external high-speed PHY. Both include ROM-based USB stack and electrical test software-enabling robust USB connectivity in embedded hosts and peripherals.
What is the purpose of the State Configurable Timer (SCTimer/PWM) in the LPC4357JET256?
The SCTimer/PWM in the LPC4357JET256 is an event-driven, programmable state machine that replaces traditional timers for advanced waveform generation, input capture, and PWM modulation. It operates independently of the CPU, supports complex timing sequences, and integrates with GIMA for hardware-triggered actions-ideal for motor control, lighting dimming, and protocol emulation.
Is the LPC4357JET256 pin-compatible with other members of the LPC43xx family in LBGA256 packaging?
Yes, the LPC4357JET256 shares identical LBGA256 pinout (SOT740-2) with other LPC43xx variants in the same package-including LPC4353JET256, LPC4337JET256, and LPC4357FET256. Pin functions are consistent across the family, enabling hardware reuse and migration paths within the same footprint and layout.
LPC4357JET256,551 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 256-LBGA
- Series:
- LPC43xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4/M0
- Core Size:
- 32-Bit Dual-Core
- Speed:
- 204MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, I2C, IrDA, Microwire, QEI, SD, SPI, SSI, SSP, UART/USART, USB, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, LCD, Motor Control PWM, POR, PWM, WDT
- Number of I/O:
- 164
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 16K x 8
- RAM Size:
- 136K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.2V ~ 3.6V
- Data Converters:
- A/D 8x10b; D/A 1x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC4357JET256,551 FAQ
1.How can I place an order for LPC4357JET256,551 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC4357JET256,551 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 LPC4357JET256,551 reliable?
The price and inventory of LPC4357JET256,551 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC4357JET256,551 is usually 5 days.
3.What payment methods are accepted for LPC4357JET256,551?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC4357JET256,551 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC4357JET256,551?
LPC4357JET256,551 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC4357JET256,551 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 LPC4357JET256,551?
For technical support, including LPC4357JET256,551 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC4357JET256,551 requirements.
6.How does Aetrix verify that LPC4357JET256,551 is sourced from the original manufacturer or authorized distributors?
All LPC4357JET256,551 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 LPC4357JET256,551 meets industry standards.
7.What is the process for return or replacement of LPC4357JET256,551?
All LPC4357JET256,551 units undergo pre-shipment inspection (PSI). If there is an issue with LPC4357JET256,551, 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 LPC4357JET256,551 part is unused and in its original packaging.
Return procedure for LPC4357JET256,551:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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