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NXP Semiconductors LPC43S57JBD208E
- Part No.:
- LPC43S57JBD208E
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 208-LQFP
- Datasheet:
-
LPC43S57JBD208E.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 208LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,989
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Product details
Overview
LPC43S57JBD208E from NXP Semiconductors is a dual-core ARM Cortex-M4F/M0 microcontroller in LQFP208 package, operating up to 204 MHz with 1 MB flash (dual-bank), 136 kB SRAM, 16 kB EEPROM, AES encryption engine, Ethernet MAC, dual high-speed USB interfaces, LCD controller, and external memory controller - deployed in industrial automation gateways requiring real-time deterministic control and secure firmware updates.
For engineers reviewing the LPC43S57JBD208E datasheet, LPC43S57JBD208E pinout, LPC43S57JBD208E application, or LPC43S57JBD208E equivalent, key selection criteria include dual-core asymmetric processing capability, integrated security for boot image decryption, RMII/MII Ethernet support with IEEE 1588 timestamping, and 142 GPIO pins with configurable pull-up/down and group interrupt logic.
Technical Context
The LPC43S57JBD208E implements an asymmetric dual-core architecture where the Cortex-M4F core handles main application tasks with hardware FPU and MPU, while the Cortex-M0 coprocessor offloads real-time peripherals (e.g., SCT, GIMA, QEI) and manages low-latency I/O - both cores share AHB bus matrix and memory subsystems but operate independently with separate debug interfaces (SWD/JTAG). The device integrates three PLLs: one for CPU clocking up to 204 MHz, one dedicated to USB 2.0 high-speed operation, and one configurable as audio PLL.
Memory subsystem includes dual-bank 512 kB flash per bank with flash accelerator, 136 kB SRAM distributed across five blocks (32 kB + 16 kB + 16 kB + 40 kB + 32 kB), 64 kB ROM with boot loader and USB stack, and 16 kB EEPROM with ECC protection - enabling safe over-the-air updates and secure key storage in two OTP banks (256-bit total) for AES decryption keys.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Dual-core: ARM Cortex-M4F @ 204 MHz + Cortex-M0 @ 204 MHz - enables real-time task partitioning with shared memory and inter-core messaging via Mailbox/Event Router. |
| Flash Memory | 1 MB total (512 kB Bank A + 512 kB Bank B) with flash accelerator - supports background programming and atomic bank switching for fail-safe firmware updates. |
| SRAM | 136 kB distributed across five AHB-accessible blocks - allows selective power-down of unused SRAM banks to reduce active current in low-power modes. |
| Security | AES-128/256 engine with DMA support and ROM-based API - performs authenticated boot image decryption using keys stored in dedicated OTP memory banks. |
| Connectivity | 10/100T Ethernet MAC with RMII/MII, IEEE 1588 v2 timestamping; two USB 2.0 HS interfaces (one with on-chip PHY, one with ULPI) - enables time-synchronized industrial networking and dual-role peripheral/host functionality. |
| Analog Peripherals | Two 10-bit ADCs (8 channels each, 400 kS/s), one 10-bit DAC (400 kS/s) - supports closed-loop motor control and audio signal generation without external converters. |
| GPIO | 142 configurable digital I/O pins with programmable pull-up/down, edge/level interrupts, and two group interrupt modules - simplifies sensor aggregation and discrete I/O management in PLC-like systems. |
Pinout & Package
LPC43S57JBD208E uses a 208-pin LQFP package (28 × 28 × 1.4 mm, SOT459-1) with 142 GPIOs mapped across 16 ports (P0–P9, PA–PF), supporting up to eight alternate functions per pin via SCU configuration registers. Pin functions include Ethernet RMII signals (ENET_RXD0/1, ENET_TXD0/1, ENET_REF_CLK), USB0/1 control lines (USB0_PPWR, USB0_PWR_FAULT), SD/MMC interface (SD_CMD, SD_DAT0–3), and dual ADC inputs (ADC0_0–7, ADC1_0–7).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1_15 | ENET_RXD0 | Ethernet receive data line 0 in RMII/MII mode - requires 50 Ω termination and matched trace length for timing compliance at 50 MHz. |
| P1_18 | ENET_TXD0 | Ethernet transmit data line 0 in RMII/MII mode - driven by MAC with internal slew rate control; connects directly to PHY differential pair. |
| P1_19 | ENET_REF_CLK | Reference clock input (50 MHz) for RMII or transmit clock for MII - must be clean, low-jitter source; supports crystal or external oscillator. |
| P2_0 | USB0_PPWR | Active-HIGH VBUS drive enable for USB0 port - polarity inverted vs. legacy LPC parts; requires external pull-down at reset to disable power switch. |
| P1_5 | USB0_PWR_FAULT | Overcurrent fault indicator input - asserted HIGH by external circuitry when USB bus current exceeds threshold; triggers software shutdown sequence. |
| P1_12 | SD_DAT3 | SD/MMC bidirectional data line 3 - part of 4-bit wide SD bus; supports UHS-I SDR12/SDR25 modes with proper signal integrity layout. |
Key Features
| Feature | Design Value |
|---|---|
| Asymmetric Dual-Core Architecture | Enables deterministic real-time response on Cortex-M0 (e.g., motor PWM, QEI decoding) while Cortex-M4F runs Linux-compatible RTOS or protocol stacks - no inter-core contention on AHB matrix due to dedicated bus masters. |
| State Configurable Timer (SCT) | Hardware state machine with 16 states and 16 events - replaces multiple general-purpose timers for complex waveform generation (e.g., 3-phase BLDC commutation) without CPU intervention. |
| Global Input Multiplexer Array (GIMA) | Routes 32+ peripheral inputs (ADC triggers, timer captures, GPIO edges) to any event-driven peripheral - eliminates software polling and reduces ISR latency for time-critical sensor fusion. |
| Secure Boot with AES Decryption | ROM bootloader validates and decrypts encrypted boot image using keys stored in OTP memory - prevents unauthorized firmware execution and ensures supply chain integrity. |
| External Memory Controller (EMC) | Supports SDRAM, NOR flash, SRAM, and ROM with programmable timing parameters - enables direct attachment of 16-bit SDRAM for GUI frame buffers or external code execution. |
Applications
| Industrial PLC Gateway | Smart Energy Metering |
|---|---|
Use Scenario: Central controller aggregating Modbus RTU/ASCII fieldbus data from sensors and actuators, performing protocol translation to MQTT/HTTP for cloud upload. IC Role / Device Role / Timing Role: LPC43S57JBD208E acts as dual-role master (Modbus RTU over RS-485) and network host (Ethernet/WiFi bridge), with Cortex-M0 handling UART framing and CRC, Cortex-M4F managing TLS stack and TCP/IP. Use Value: 142 GPIOs support 8+ isolated RS-485 transceivers; dual USB ports enable field service via USB-to-serial adapters; AES engine secures OTA firmware updates against tampering. | Use Scenario: DIN-rail mounted electricity meter with tariff calculation, tamper detection, and remote firmware update via cellular backhaul. IC Role / Device Role / Timing Role: LPC43S57JBD208E serves as metrology co-processor interfacing with 24-bit sigma-delta ADCs and managing secure key storage for DLMS/COSEM authentication. Use Value: Two 10-bit ADCs sample auxiliary sensors (temperature, voltage sag); RTC with battery backup maintains accurate billing timestamps; OTP memory stores cryptographic keys resistant to physical extraction. |
| Embedded Audio Processing Unit | Motor Control Drive |
Use Scenario: Low-latency audio mixer for professional AV equipment, accepting analog/digital inputs and outputting I2S/SPDIF streams. IC Role / Device Role / Timing Role: LPC43S57JBD208E provides I2S0/I2S1 interfaces for simultaneous input/output, DSP filtering on Cortex-M4F FPU, and GPIO-controlled relay switching for input routing. Use Value: Hardware I2S with DMA eliminates CPU overhead; 10-bit DAC generates analog monitor outputs; SCT generates precise PWM for LED status indicators synchronized to audio frames. | Use Scenario: 3-phase inverter for HVAC compressors, implementing field-oriented control (FOC) with current sensing and thermal monitoring. IC Role / Device Role / Timing Role: LPC43S57JBD208E executes FOC algorithm on Cortex-M4F, while Cortex-M0 drives motor PWM via SCT and reads QEI position feedback with sub-microsecond jitter. Use Value: Motor control PWM supports 20 kHz carrier frequency; QEI interface decodes 4x quadrature signals up to 1 MHz; ADC0/1 sample phase currents simultaneously with 1 μs inter-channel skew. |
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 |
|---|---|---|---|
| LPC4357JBD208 | No AES engine; lacks dedicated OTP banks for key storage; identical pinout and memory map. | Suitable for non-security-critical applications like basic HMI or gateway without encrypted firmware. | Select LPC4357JBD208 only if AES-based secure boot and runtime decryption are not required. |
| LPC4337JBD144 | 144-pin LQFP; no LCD controller; only 83 GPIOs; no QEI; reduced peripheral set (no second USB HS PHY). | Targeted at cost-sensitive, space-constrained designs where Ethernet and USB are retained but display and advanced motor control are omitted. | Choose LPC4337JBD144 when board area and BOM cost outweigh need for LCD, QEI, or full GPIO count. |
Compared with LPC4357JBD208 and LPC4337JBD144, the LPC43S57JBD208E uniquely delivers production-ready security (AES + OTP key storage) and full feature parity (LCD, QEI, 142 GPIOs) in the LQFP208 footprint - making it optimal for certified industrial devices requiring functional safety and cybersecurity compliance.
Availability
LPC43S57JBD208E is available at Aetrix Electronics and suitable for industrial automation gateways, smart energy metering systems, and embedded audio processing units requiring stable component supply across extended temperature ranges (−40 °C to +105 °C).
Supply support for LPC43S57JBD208E 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 trusted execution environments.
The LPC43Sxx product line targets high-integrity embedded applications demanding dual-core determinism, hardware-accelerated cryptography, and rich peripheral integration - specifically engineered for industrial control, energy infrastructure, and secure edge nodes.
FAQ
What is the maximum operating frequency of the LPC43S57JBD208E?
The LPC43S57JBD208E operates at a maximum CPU frequency of 204 MHz on both the ARM Cortex-M4F and Cortex-M0 cores. This is achieved using the on-chip CCO (Current Controlled Oscillator) PLL with crystal or RC oscillator input, and verified across the full −40 °C to +105 °C industrial temperature range. The LPC43S57JBD208E maintains timing compliance under worst-case voltage (2.4 V) and temperature conditions per its data sheet specifications.
Does the LPC43S57JBD208E support secure boot with hardware AES decryption?
Yes, the LPC43S57JBD208E includes a dedicated AES-128/256 engine with DMA support and a ROM-based API that enables authenticated and decrypted boot from flash. Keys are stored in two dedicated 128-bit OTP banks - one for encrypted boot image decryption, the other for general-purpose secure storage - ensuring protection against firmware cloning and unauthorized execution. This capability is intrinsic to the LPC43S57JBD208E and not present in non-S variants like LPC4357.
How many GPIO pins does the LPC43S57JBD208E provide, and what advanced I/O features are supported?
The LPC43S57JBD208E provides 142 GPIO pins across 16 ports (P0–P9, PA–PF), each configurable with programmable pull-up/pull-down resistors, edge- or level-sensitive interrupts, and up to eight alternate functions via SCU registers. It supports two GPIO group interrupt modules for pattern-matching logic, individual SRAM block power-down, and DMA access to GPIO registers - enabling efficient sensor polling and low-latency event handling in industrial I/O applications.
What Ethernet capabilities does the LPC43S57JBD208E offer, and does it support IEEE 1588?
The LPC43S57JBD208E integrates a 10/100T Ethernet MAC with both RMII and MII interfaces, DMA acceleration, and full IEEE 1588-2008 v2 precision time protocol (PTP) timestamping support. Hardware timestamping is applied to ingress/egress PTP packets at the MAC layer with sub-100 ns resolution, enabling time-synchronized motion control and distributed I/O in industrial Ethernet networks - a feature confirmed in the LPC43S57JBD208E datasheet Section 2.2 and Figure 1 block diagram.
Is the LPC43S57JBD208E pin-compatible with other members of the LPC43xx family?
The LPC43S57JBD208E shares the same LQFP208 package (SOT459-1) and pinout with LPC4357JBD208 and LPC4337JBD208, but differs functionally: only the 'S' variant includes the AES engine and dedicated OTP key storage. While electrical and mechanical compatibility exists, firmware and security features are not interchangeable - migration to LPC43S57JBD208E requires validation of AES key provisioning and secure boot flow.
LPC43S57JBD208E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 208-LQFP
- 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, MMC/SD, QEI, SPI, SSI, SSP, UART/USART, USB, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, LCD, Motor Control PWM, POR, WDT
- Number of I/O:
- 142
- 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:
LPC43S57JBD208E FAQ
1.How can I place an order for LPC43S57JBD208E through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC43S57JBD208E 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 LPC43S57JBD208E reliable?
The price and inventory of LPC43S57JBD208E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC43S57JBD208E is usually 5 days.
3.What payment methods are accepted for LPC43S57JBD208E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC43S57JBD208E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC43S57JBD208E?
LPC43S57JBD208E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC43S57JBD208E 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 LPC43S57JBD208E?
For technical support, including LPC43S57JBD208E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC43S57JBD208E requirements.
6.How does Aetrix verify that LPC43S57JBD208E is sourced from the original manufacturer or authorized distributors?
All LPC43S57JBD208E 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 LPC43S57JBD208E meets industry standards.
7.What is the process for return or replacement of LPC43S57JBD208E?
All LPC43S57JBD208E units undergo pre-shipment inspection (PSI). If there is an issue with LPC43S57JBD208E, 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 LPC43S57JBD208E part is unused and in its original packaging.
Return procedure for LPC43S57JBD208E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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