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NXP Semiconductors LPC18S57JET256E
- Part No.:
- LPC18S57JET256E
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 256-LBGA
- Datasheet:
-
LPC18S57JET256E.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 256LBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,194
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Product details
Overview
LPC18S57JET256E from NXP Semiconductors is a 32-bit ARM Cortex-M3 microcontroller operating at up to 180 MHz, featuring 1 MB dual-bank flash, 136 kB SRAM, and integrated Ethernet MAC with IEEE 1588 timestamping. It includes two High-speed USB 2.0 interfaces (one OTG-capable), LCD controller, quad SPI Flash Interface (SPIFI), AES encryption engine, and supports industrial control, RFID readers, and e-metering applications.
For engineers reviewing the LPC18S57JET256E datasheet, LPC18S57JET256E pinout, LPC18S57JET256E application, or LPC18S57JET256E equivalent, key selection criteria include its LBGA256 package with 164 GPIOs, dual USB PHY integration, Ethernet RMII/MII support, and -40 °C to +105 °C extended temperature grade.
Technical Context
The LPC18S57JET256E implements an ARM Cortex-M3 r2p1 core with Harvard architecture, 3-stage pipeline, and built-in MPU supporting eight memory regions. Its clock system uses three PLLs - one for CPU up to 180 MHz, one dedicated to USB0, and one configurable as audio PLL - enabling flexible frequency synthesis without external high-frequency crystals.
Digital peripheral integration includes a State-Configurable Timer/PWM (SCTimer/PWM) subsystem on AHB, Global Input Multiplexer Array (GIMA) for cross-peripheral event routing, and an External Memory Controller (EMC) supporting SDRAM, NOR flash, and SRAM. Analog resources comprise two 10-bit ADCs (400 kSamples/s, 8 total channels) and one 10-bit DAC (400 kSamples/s), all with DMA support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3 r2p1, 180 MHz max - enables deterministic real-time execution with NVIC and MPU for safety-critical firmware partitioning. |
| Memory | 1 MB dual-bank flash (512 kB per bank), 136 kB SRAM, 16 kB EEPROM - supports robust firmware updates with bank-swapping and non-volatile data logging. |
| Connectivity | 10/100T Ethernet MAC with RMII/MII and IEEE 1588 v2 timestamping - delivers precise time-synchronized communication for industrial automation. |
| USB | USB0: HS Host/Device/OTG with on-chip HS PHY; USB1: HS Host/Device with ULPI interface - eliminates need for external transceivers in dual-USB designs. |
| Analog I/O | Two 10-bit ADCs (400 kSamples/s, 8 shared channels), one 10-bit DAC (400 kSamples/s) - provides synchronized analog acquisition and waveform generation for motor control feedback loops. |
| Security | AES engine with DMA support and ROM-based API - enables secure boot image decryption and runtime data encryption without CPU overhead. |
| Package & Temp | LBGA256 (17 × 17 × 1 mm), -40 °C to +105 °C - suitable for harsh industrial environments requiring high I/O density and thermal resilience. |
Pinout & Package
Package: Plastic low-profile ball grid array (LBGA256), 256-ball layout, 17 mm × 17 mm × 1 mm body (SOT740-2). Pin count: 256 balls, including power, ground, I/O, and dedicated function balls (e.g., ENET_RXD0, USB0_PPWR, EMC_D0–D15).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0 | GPIO0[0] / SSP1_MISO / ENET_RXD1 / I2S0_TX_WS | Multi-function digital I/O; supports Ethernet receive, SPI slave interface, and I2S word select - enables concurrent connectivity in audio+networking systems. |
| P1_15 | GPIO0[2] / ENET_RXD0 / T0_MAT1 / EMC_D8 | Ethernet receive data line 0 with timer match output and external memory data bus access - allows tight coupling of network timing and memory-mapped peripherals. |
| P1_19 | ENET_TX_CLK / SSP1_SCK / CLKOUT / I2S0_RX_MCLK | Configurable clock source for Ethernet transmit, SPI, system output, and I2S master clock - simplifies clock tree design across multiple synchronous interfaces. |
| P2_7 | GPIO0[7] / CTOUT_1 / U3_UCLK / EMC_A9 | ISP entry pin (LOW at reset), SCTimer PWM output, USART3 clock, and external memory address line - integrates boot control, motor control, and memory expansion in one pin group. |
| P2_10 | GPIO0[14] / CTOUT_2 / U2_TXD / EMC_A1 | Timer PWM output, USART2 transmit, and external memory address line - supports coordinated timing for serial comms and memory-mapped peripherals like displays or FPGA co-processors. |
Key Features
| Feature | Design Value |
|---|---|
| State-Configurable Timer/PWM (SCTimer) | Hardware-state-machine-based PWM generation with programmable event-triggered transitions - enables complex motor commutation patterns without CPU intervention. |
| Global Input Multiplexer Array (GIMA) | Dynamic routing of GPIO, timer, ADC, and SCTimer events across AHB peripherals - eliminates software polling and reduces interrupt latency in sensor-fusion applications. |
| Quad SPI Flash Interface (SPIFI) | Up to 52 MB/s 1-/2-/4-bit serial flash access with transparent memory mapping - replaces parallel NOR flash, reducing PCB footprint and pin count while maintaining code execution speed. |
| External Memory Controller (EMC) | Supports SDRAM, SRAM, NOR flash, and ROM with configurable timing - enables direct attachment of graphics frame buffers, FPGA configuration memory, or large data buffers. |
| USB Dual PHY Architecture | On-chip HS PHY for USB0 + ULPI interface for USB1 - allows simultaneous high-bandwidth device enumeration (USB0) and host-controlled peripheral bridging (USB1) with minimal BOM cost. |
| IEEE 1588-2008 v2 Support | Hardware timestamping in Ethernet MAC with sub-microsecond precision - meets synchronization requirements for industrial PLCs, power substation controllers, and distributed I/O systems. |
Applications
| Industrial PLC Controllers | RFID Reader Systems |
|---|---|
Use Scenario: Real-time logic execution, fieldbus communication (CAN/Ethernet), and analog I/O conditioning in cabinet-mounted controllers. IC Role / Device Role / Timing Role: Main application processor with deterministic interrupt response, Ethernet MAC for PROFINET/Modbus TCP, and dual ADCs for sensor signal acquisition. Use Value: 180 MHz Cortex-M3 core and IEEE 1588 timestamping enable cycle-accurate I/O scanning and synchronized multi-axis motion control. |
Use Scenario: Multi-protocol RFID interrogation (LF/HF/UHF), tag data processing, and secure wireless communication in access control terminals. IC Role / Device Role / Timing Role: Central MCU managing RF front-end control, cryptographic authentication (AES), and USB/Ethernet backhaul to central servers. Use Value: Integrated dual USB + Ethernet + AES engine eliminates external security ICs and enables FIPS-compliant over-the-air firmware updates. |
| e-Metering Platforms | White Goods Control Units |
Use Scenario: Smart electricity/water/gas metering with tamper detection, metrology computation, and secure data logging via HAN or WAN interfaces. IC Role / Device Role / Timing Role: Metrology host with 10-bit dual ADCs for current/voltage sampling, RTC with battery backup for time-stamped events, and SPIFI for encrypted firmware storage. Use Value: 16 kB EEPROM + 1 MB flash supports long-term calibration data retention and secure OTA updates compliant with DLMS/COSEM standards. |
Use Scenario: Washing machine/dishwasher main control unit managing motor drives, temperature sensing, user interface, and energy monitoring. IC Role / Device Role / Timing Role: System-on-chip controller integrating SCTimer for 3-phase BLDC motor control, LCD driver for display, and USB for service diagnostics. Use Value: Motor control PWM outputs + QEI input + 10-bit DAC for precise water valve actuation and real-time power consumption feedback. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1857JET256 | No AES engine; identical CPU, memory, USB, Ethernet, and peripheral set otherwise. | Lacks hardware-accelerated encryption required for secure boot or DLMS-compliant e-metering. | Select when AES is unnecessary and cost reduction is prioritized over security certification. |
| LPC4357JET256 | Dual-core: Cortex-M4F + Cortex-M0 coprocessor; adds FPU, enhanced DSP instructions, and separate M0 for offloading comms stacks. | Better suited for audio processing, advanced motor control algorithms, or running FreeRTOS + protocol stacks concurrently. | Select when floating-point math, real-time audio, or asymmetric multiprocessing is required beyond LPC18S57JET256's capabilities. |
Compared with LPC1857JET256, the LPC18S57JET256E adds mandatory AES acceleration for secure boot compliance; compared with LPC4357JET256, it trades dual-core flexibility and FPU for lower power and simpler firmware validation in deterministic industrial control.
Availability
LPC18S57JET256E is available at Aetrix Electronics and suitable for industrial PLC controllers, RFID reader systems, and e-metering platforms requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LPC18S57JET256E 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 markets, with deep expertise in ARM-based microcontrollers and edge processing.
The LPC18Sxx product line is designed for high-performance, secure embedded applications demanding rich connectivity (Ethernet/USB), real-time control (SCTimer/QEI), and industrial-grade reliability (-40 °C to +105 °C).
FAQ
What is the maximum operating frequency of the LPC18S57JET256E?
The LPC18S57JET256E operates at a maximum CPU frequency of 180 MHz using its ARM Cortex-M3 core. This is achieved via an internal PLL that synthesizes the clock from a 1 MHz–25 MHz crystal or the 12 MHz internal RC oscillator. The LPC18S57JET256E maintains full peripheral functionality at this speed, including Ethernet MAC, USB controllers, and SPIFI.
Does the LPC18S57JET256E support IEEE 1588 Precision Time Protocol?
Yes, the LPC18S57JET256E includes hardware-level IEEE 1588-2008 v2 timestamping in its Ethernet MAC, supporting both one-step and two-step clock synchronization with sub-microsecond accuracy. This capability is essential for time-sensitive networking in industrial automation and power distribution systems using the LPC18S57JET256E.
How many USB interfaces does the LPC18S57JET256E provide, and what are their configurations?
The LPC18S57JET256E provides two independent High-speed USB 2.0 interfaces: USB0 supports Host/Device/OTG modes with an integrated on-chip high-speed PHY; USB1 supports Host/Device modes with an on-chip full-speed PHY and ULPI interface for connection to an external high-speed PHY. Both include DMA support for low-CPU-load data transfer.
What memory resources are available on the LPC18S57JET256E?
The LPC18S57JET256E integrates 1 MB of on-chip dual-bank flash memory (512 kB per bank), 136 kB of SRAM (distributed across multiple AHB-accessible blocks), 16 kB of EEPROM, 64 kB of ROM containing boot code and drivers, and 64-bit + 256-bit OTP memory. This memory architecture supports safe firmware updates, secure key storage, and real-time data buffering.
Is the LPC18S57JET256E pin-compatible with other members of the LPC18xx family?
The LPC18S57JET256E shares the LBGA256 package and pinout with LPC1857JET256 and LPC1837JET256, but functional differences exist: LPC18S57JET256E includes AES acceleration and LCD controller, while LPC1857JET256 omits AES and LPC1837JET256 lacks LCD and QEI. Pin compatibility enables drop-in replacement only where feature subsets align.
LPC18S57JET256E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 256-LBGA
- Series:
- LPC18xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 180MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, I2C, IrDA, Microwire, QEI, MMC/SD, SPI, SSI, SSP, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, LCD, POR, PWM, WDT
- Number of I/O:
- 164
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- 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:
LPC18S57JET256E FAQ
1.How can I place an order for LPC18S57JET256E through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC18S57JET256E 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 LPC18S57JET256E reliable?
The price and inventory of LPC18S57JET256E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC18S57JET256E is usually 5 days.
3.What payment methods are accepted for LPC18S57JET256E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC18S57JET256E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC18S57JET256E?
LPC18S57JET256E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC18S57JET256E 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 LPC18S57JET256E?
For technical support, including LPC18S57JET256E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC18S57JET256E requirements.
6.How does Aetrix verify that LPC18S57JET256E is sourced from the original manufacturer or authorized distributors?
All LPC18S57JET256E 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 LPC18S57JET256E meets industry standards.
7.What is the process for return or replacement of LPC18S57JET256E?
All LPC18S57JET256E units undergo pre-shipment inspection (PSI). If there is an issue with LPC18S57JET256E, 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 LPC18S57JET256E part is unused and in its original packaging.
Return procedure for LPC18S57JET256E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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