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NXP Semiconductors LPC11E37HFBD64/4QL
- Part No.:
- LPC11E37HFBD64/4QL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
LPC11E37HFBD64/4QL.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:177
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Product details
Overview
LPC11E37HFBD64/401 from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller operating at up to 50 MHz, featuring 128 kB flash, 10 kB SRAM, 4 kB EEPROM, one RS-485/UART/Smart Card USART, two SSP interfaces, I²C-bus Fast-mode Plus (1 Mbit/s), 10-bit ADC with 8 channels, and 54 GPIO pins. It targets industrial control and handheld scanner applications requiring low-power, high-integration embedded control.
For engineers reviewing the LPC11E37HFBD64/401 datasheet, LPC11E37HFBD64/401 pinout, LPC11E37HFBD64/401 application, or LPC11E37HFBD64/401 equivalent, key selection criteria include I/O Handler hardware emulation capability (exclusive to this variant), 54-pin LQFP64 package compatibility, deep power-down wake-up via dedicated WAKEUP pin, and support for synchronous USART and ISO 7816-3 smart card interface.
Technical Context
The LPC11E37HFBD64/401 implements an ARM Cortex-M0 core with NVIC and NMI support, paired with a programmable Windowed Watchdog Timer (WWDT) driven by a dedicated low-power WatchDog Oscillator (WDO). Its clock system integrates a 1–25 MHz crystal oscillator, 12 MHz internal RC oscillator, PLL for CPU scaling, and configurable clock output.
Digital peripherals include four general-purpose timers (two 32-bit, two 16-bit) with up to 13 match outputs and 8 capture inputs, GPIO interrupt grouping logic, and high-current drivers (20 mA sink/source on select pins). Analog functionality centers on an 8-channel, 10-bit ADC with multiplexed inputs and programmable sampling control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 32-bit RISC, up to 50 MHz operation - enables deterministic real-time control with Thumb-2 instruction set and low code footprint. |
| Memory | 128 kB flash (sector/page erase), 10 kB SRAM, 4 kB byte-erasable EEPROM - supports robust firmware updates, data logging, and parameter storage without external memory. |
| Analog Input | 10-bit ADC with 8 multiplexed input channels - provides sufficient resolution for sensor interfacing in industrial monitoring and medical devices. |
| Serial Interfaces | 1× USART (RS-485/9-bit/smart card), 2× SSP (SPI-compatible), 1× I²C-bus Fast-mode Plus (1 Mbit/s) - enables multi-protocol connectivity including legacy industrial buses and secure peripheral attachment. |
| I/O Handler | Hardware-accelerated serial emulation (UART/I²C/I²S) with minimal CPU load - offloads timing-critical communication tasks, freeing CPU for application logic in resource-constrained designs. |
| Power Modes | Four reduced-power modes (Sleep, Deep-sleep, Power-down, Deep power-down) with wake-up via GPIO or WAKEUP pin - extends battery life in portable equipment and enables ultra-low standby current. |
| Package | LQFP64, 10 × 10 × 1.4 mm, 64-pin leaded package - supports standard PCB assembly, thermal management, and mechanical robustness in industrial environments. |
Pinout & Package
Package: LQFP64 (plastic low profile quad flat package; 64 leads; body 10 × 10 × 1.4 mm; SOT314-2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET/PIO0_0 | Reset input / GPIO | External reset with 20 ns glitch filter; also debug mode select - ensures reliable initialization and safe JTAG/SWD entry during development. |
| SWDIO/PIO0_15 | Debug I/O / GPIO | Serial Wire Debug bidirectional signal - enables non-intrusive debugging and programming without dedicated JTAG pins. |
| PIO0_16/WAKEUP | GPIO / Deep power-down wake | Dedicated wake-up pin with 20 ns glitch filter - allows exit from Deep power-down mode using external trigger, critical for battery-powered wake-on-event systems. |
| PIO0_4/SCL | I²C clock / GPIO | Open-drain I²C-bus clock line supporting Fast-mode Plus (1 Mbit/s) - enables high-speed sensor and peripheral communication with standard pull-up requirements. |
| PIO0_5/SDA | I²C data / GPIO | Open-drain I²C-bus data line with high-current sink capability when Fast-mode Plus enabled - ensures robust bus drive under capacitive loads. |
| PIO1_26/RXD | USART receive / GPIO | Asynchronous receiver input with UART ISP support - permits in-system firmware updates over standard serial interface without bootloader reflash. |
| PIO1_27/TXD | USART transmit / GPIO | Transmitter output supporting RS-485 half-duplex mode and ISO 7816-3 smart card protocol - enables direct connection to industrial transceivers and secure authentication modules. |
| IOH_0 to IOH_20 | I/O Handler signals | 21 dedicated I/O Handler pins (e.g., IOH_0–IOH_9, IOH_10–IOH_20) - provide hardware-emulated serial interfaces with zero-CPU overhead, unique to LPC11E37HFBD64/401 variant. |
Key Features
| Feature | Design Value |
|---|---|
| I/O Handler hardware engine | Offloads UART/I²C/I²S emulation to dedicated logic, reducing CPU utilization to near-zero for serial protocol handling - essential for real-time multitasking in constrained MCU designs. |
| Programmable Windowed Watchdog Timer | Prevents runaway code with time-windowed refresh requirement and independent low-power WDO clock source - improves system reliability in unattended industrial deployments. |
| EEPROM with byte-level erasure | 4 kB on-chip EEPROM supports individual byte writes and erases via on-chip API - eliminates need for external non-volatile memory in calibration storage and configuration retention. |
| Multi-mode power management | Deep power-down mode draws sub-μA current with wake-up via single dedicated pin - enables years of operation on coin-cell batteries in remote sensing nodes. |
| Smart card interface support | USART configured per ISO 7816-3 standard with asynchronous smart card timing and voltage levels - allows direct integration into access control, payment, and identity verification systems. |
Applications
| Industrial Control | Handheld Scanners |
|---|---|
Use Scenario: Programmable logic controller (PLC) I/O module managing discrete sensors and actuators in factory automation. IC Role / Device Role / Timing Role: Central control unit executing ladder logic, driving GPIOs, polling ADC for analog sensor feedback, and communicating via RS-485 to master HMI. Use Value: Integrated RS-485 USART and 54 GPIOs eliminate external level shifters and port expanders; I/O Handler enables simultaneous I²C sensor reads and UART diagnostics without CPU contention. | Use Scenario: Battery-powered barcode scanner with laser diode driver, image sensor interface, and Bluetooth LE host communication. IC Role / Device Role / Timing Role: Main application processor handling scan decoding, power sequencing, and BLE packet framing via SSP and USART. Use Value: Deep power-down mode with WAKEUP pin extends battery life between scans; 10-bit ADC monitors battery voltage and temperature for safe charging control. |
| Medical Devices | Consumer Peripherals |
Use Scenario: Portable pulse oximeter acquiring photoplethysmography (PPG) signals and displaying SpO₂ results on OLED. IC Role / Device Role / Timing Role: Signal acquisition controller synchronizing LED drivers, ADC sampling, and display update via GPIO and SSP. Use Value: 8-channel 10-bit ADC captures dual-wavelength PPG waveforms; I/O Handler emulates I²C to OLED driver while CPU processes FFT-based saturation algorithms. | Use Scenario: Smart home remote control with capacitive touch keys, IR emitter, and USB HID interface emulation. IC Role / Device Role / Timing Role: Peripheral interface hub managing touch detection, IR carrier generation, and USB enumeration via software stack. Use Value: Hardware I/O Handler generates precise 38 kHz IR carrier with no timer resource conflict; 12 kB total RAM accommodates USB descriptor tables and touch firmware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC11E37FBD64/501 | Lacks I/O Handler hardware; identical 128 kB flash, 12 kB SRAM, same LQFP64 package and peripheral set. | Suitable for cost-sensitive designs where hardware serial emulation is not required. | Select when I/O Handler functionality is unnecessary and lower BOM cost is prioritized over flexible peripheral offload. |
| LPC11U37FBD64/501 | ARM Cortex-M0 core with USB 2.0 device controller; 128 kB flash, 12 kB SRAM; no I/O Handler; adds USB PHY and descriptors. | Required for USB-connected peripherals; unsuitable for RS-485 or smart card use cases without external bridge ICs. | Choose only if native USB device functionality is mandatory and RS-485/smart card support can be implemented externally. |
Compared with LPC11E37FBD64/501 and LPC11U37FBD64/501, the LPC11E37HFBD64/401 uniquely delivers hardware-accelerated serial interface emulation - enabling concurrent multi-protocol communication without CPU scheduling trade-offs, making it optimal for deeply embedded systems with strict real-time and power constraints.
Availability
LPC11E37HFBD64/401 is available at Aetrix Electronics and suitable for industrial control, handheld scanners, and medical devices requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for LPC11E37HFBD64/401 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The LPC11E3x product line is designed for cost-effective, low-power 32-bit embedded control in space- and energy-constrained applications, emphasizing peripheral integration, power efficiency, and ease of migration from 8/16-bit architectures.
FAQ
What distinguishes LPC11E37HFBD64/401 from other LPC11E3x variants?
The LPC11E37HFBD64/401 is uniquely identified by its inclusion of the I/O Handler hardware engine - a dedicated peripheral that emulates UART, I²C, and I²S protocols with negligible CPU overhead. This feature is absent in all other LPC11E3x parts except those explicitly marked "/401", and it enables concurrent multi-protocol communication without compromising real-time application execution on the LPC11E37HFBD64/401.
Does LPC11E37HFBD64/401 support RS-485 communication natively?
Yes, the LPC11E37HFBD64/401 includes a dedicated USART with built-in RS-485/9-bit mode support, including automatic direction control and half-duplex operation. This allows direct connection to RS-485 transceivers without external logic, and the feature is confirmed in the official NXP datasheet Rev. 2.3 for the LPC11E37HFBD64/401.
What is the function of the WAKEUP pin on LPC11E37HFBD64/401?
The WAKEUP pin (PIO0_16) on the LPC11E37HFBD64/401 serves exclusively as the Deep power-down mode wake-up trigger. It features a 20 ns glitch filter and requires an external LOW-going pulse of ≥50 ns to exit Deep power-down. This pin is distinct from RESET and is mandatory for recovery from the lowest power state, as documented in the LPC11E3x datasheet section 6.2.
Can LPC11E37HFBD64/401 execute in-application programming (IAP)?
Yes, the LPC11E37HFBD64/401 supports both In-System Programming (ISP) and In-Application Programming (IAP) via its on-chip bootloader. The 16 kB boot ROM contains API routines enabling field firmware updates without external programmers, and IAP operations are validated for flash and EEPROM sectors - a confirmed capability specified in the LPC11E3x datasheet Rev. 2.3.
Is the I²C-bus interface on LPC11E37HFBD64/401 compatible with Fast-mode Plus?
Yes, the I²C-bus interface on LPC11E37HFBD64/401 fully complies with Fast-mode Plus (1 Mbit/s) per the I²C specification. This is enabled through configurable I/O settings that activate high-current sink drivers on PIO0_4 (SCL) and PIO0_5 (SDA), and is explicitly stated in the "Serial interfaces" section of the LPC11E3x datasheet for the LPC11E37HFBD64/401 variant.
LPC11E37HFBD64/4QL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit
- Speed:
- 50MHz
- Connectivity:
- I2C, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, WDT
- Number of I/O:
- 54
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 10K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x10b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC11E37HFBD64/4QL FAQ
1.How can I place an order for LPC11E37HFBD64/4QL through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC11E37HFBD64/4QL 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 LPC11E37HFBD64/4QL reliable?
The price and inventory of LPC11E37HFBD64/4QL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC11E37HFBD64/4QL is usually 5 days.
3.What payment methods are accepted for LPC11E37HFBD64/4QL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC11E37HFBD64/4QL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC11E37HFBD64/4QL?
LPC11E37HFBD64/4QL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC11E37HFBD64/4QL 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 LPC11E37HFBD64/4QL?
For technical support, including LPC11E37HFBD64/4QL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC11E37HFBD64/4QL requirements.
6.How does Aetrix verify that LPC11E37HFBD64/4QL is sourced from the original manufacturer or authorized distributors?
All LPC11E37HFBD64/4QL 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 LPC11E37HFBD64/4QL meets industry standards.
7.What is the process for return or replacement of LPC11E37HFBD64/4QL?
All LPC11E37HFBD64/4QL units undergo pre-shipment inspection (PSI). If there is an issue with LPC11E37HFBD64/4QL, 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 LPC11E37HFBD64/4QL part is unused and in its original packaging.
Return procedure for LPC11E37HFBD64/4QL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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