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NXP Semiconductors LPC1110FD20Y
- Part No.:
- LPC1110FD20Y
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
LPC1110FD20Y.pdf
- Description:
- SCALABLE ENTRY LEVEL 32-BIT MICR
- Quantity:
- Payment:
- Shipping:
Inventory:3,929
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Product details
Overview
LPC1110FD20Y from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller in SO20 package, delivering up to 50 MHz CPU operation, 4 kB flash, 1 kB SRAM, and integrated UART/I²C/SPI peripherals - designed for cost-sensitive embedded control in metering, lighting, and alarm systems.
For engineers reviewing the LPC1110FD20Y datasheet, LPC1110FD20Y pinout, LPC1110FD20Y application, or LPC1110FD20Y equivalent, this page provides verified technical context, validated pin functions, confirmed low-power operating modes (Sleep/Deep-sleep), and real-world substitution guidance for industrial and consumer electronics design.
Technical Context
The LPC1110FD20Y implements an ARM Cortex-M0 core with NVIC and Serial Wire Debug support, paired with a programmable watchdog timer and system tick timer. Its clock system integrates a 12 MHz ±1 % internal RC oscillator, crystal oscillator (1–25 MHz), and PLL for flexible frequency synthesis.
Digital peripherals include 16 GPIO pins with configurable pull-up/pull-down, edge/level interrupt capability, and high-current output (20 mA) on one pin. Analog functionality centers on a 10-bit ADC with 5-channel input multiplexing, matching the SO20 package's pin count and routing constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 32-bit RISC architecture optimized for deterministic real-time control |
| Max Clock Frequency | 50 MHz - enables fast interrupt response and efficient execution of protocol stacks |
| Flash Memory | 4 kB - sufficient for basic firmware, bootloader, and configuration storage in compact devices |
| SRAM | 1 kB - supports stack, heap, and small data buffers for sensor aggregation or communication tasks |
| ADC Resolution | 10-bit - delivers 1024 discrete levels for accurate analog sensing in temperature or voltage monitoring |
| GPIO Count | 16 pins - matches SO20 package I/O capacity; includes interrupt-capable inputs and 20 mA drive capability |
| Operating Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion, 3.3 V logic, and battery-backed systems |
| Temperature Range | −40 °C to +85 °C - qualified for industrial and consumer environments without extended thermal derating |
Pinout & Package
Package: SO20 - plastic small outline package, 20 leads, 7.5 mm body width, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VSS) | Ground | Primary digital ground reference for all I/O and core logic |
| 2 (PIO0_0 / RESET) | Reset Input | Active-low asynchronous reset; also serves as general-purpose I/O after initialization |
| 3 (PIO0_1 / CLKOUT) | Programmable Clock Output | Drives external timing circuits or test equipment at divided system clock rates |
| 4 (PIO0_2 / SSEL0) | SPI Slave Select 0 | Enables SPI peripheral communication with external sensors or memory |
| 5 (PIO0_3) | General Purpose I/O | Configurable as input/output with pull-up/down; supports edge-triggered interrupts |
| 6 (PIO0_4 / SCL) | I²C Bus Clock | Open-drain output for standard or Fast-mode Plus (1 Mbit/s) I²C communication |
| 7 (PIO0_5 / SDA) | I²C Bus Data | Open-drain bidirectional data line; supports multi-master arbitration and monitor mode |
| 8 (PIO0_6 / SCK0) | SPI Clock 0 | Master clock output for synchronous serial communication with peripherals |
| 9 (PIO0_7 / CTS) | UART Clear-to-Send | Hardware flow control input for RS-485/EIA-485 UART interface |
| 10 (VDD) | Power Supply | Single 1.8–3.6 V supply powering core, memory, and I/O domains |
| 11 (PIO0_11 / AD0) | ADC Input 0 | Analog input channel for 10-bit conversion; shares pin with CT32B0_MAT3 timer function |
| 12 (XTALIN) | Clock Crystal Input | Connects to external crystal (1–25 MHz) for precise timing in communication or measurement |
| 13 (XTALOUT) | Clock Crystal Output | Drives crystal resonator; not available on LPC1112FDH20/102 but present on LPC1110FD20Y |
| 14 (R / PIO1_0 / AD1) | ADC Input 1 / Reset Alternate | Secondary analog input; also used as alternate reset source when configured |
| 15 (R / PIO1_1 / AD2) | ADC Input 2 / Reset Alternate | Third analog input; dual-function pin supporting both reset and sensing roles |
| 16 (R / PIO1_2 / AD3) | ADC Input 3 / Reset Alternate | Fourth analog input; enables multi-channel sensor interfaces within SO20 footprint |
| 17 (PIO1_3 / AD4 / SWDIO) | Debug I/O / ADC Input 4 | Serial Wire Debug bidirectional data line; also serves as fifth ADC channel |
| 18 (PIO1_4 / AD5 / WAKEUP) | ADC Input 5 / Wake-up Source | Fifth analog input; triggers wake-up from Deep-sleep mode on level/edge event |
| 19 (PIO1_5 / RTS) | UART Request-to-Send | Hardware flow control output for full-duplex RS-485/EIA-485 communication |
| 20 (PIO1_6 / RXD) | UART Receive Data | Asynchronous serial input supporting fractional baud rate generation and FIFO buffering |
Key Features
| Feature | Design Value |
|---|---|
| ARM Cortex-M0 Core | Low-gate-count 32-bit processor enabling 8/16-bit replacement with reduced code size and higher determinism |
| Power Management Unit (PMU) | Supports Sleep, Deep-sleep, and Deep power-down modes - critical for battery-operated metering and alarm systems |
| Programmable Watchdog Timer | Ensures system recovery from software lockup; configurable timeout period prevents spurious resets |
| 10-bit ADC with 5-Channel Multiplexing | Enables simultaneous monitoring of multiple analog sensors (e.g., voltage, temperature, current) using shared SO20 pins |
| RS-485/EIA-485 UART Support | Facilitates robust long-distance communication in industrial lighting and building automation networks |
| Configurable Open-Drain Mode | Allows I²C bus compatibility and wired-AND logic implementation without external components |
Applications
| Smart Energy Metering | LED Lighting Control |
|---|---|
Use Scenario: Residential electricity meter with tamper detection, pulse counting, and HAN communication. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing UART-based PLC or RF modules, and sampling voltage/current via ADC. Use Value: 4 kB flash stores calibrated firmware; 16 GPIO enable direct LED driver control and opto-isolated pulse outputs; low-power modes extend battery backup life. | Use Scenario: Dimmable commercial LED driver with DALI or 0–10 V interface and thermal protection. IC Role / Device Role / Timing Role: System manager handling analog dimming input, PWM generation, overtemperature shutdown, and communication protocol parsing. Use Value: 10-bit ADC measures thermistor voltage for thermal feedback; UART supports DALI command reception; 50 MHz core ensures real-time PWM update. |
| Security Alarm Panel | White Goods Interface Module |
Use Scenario: Standalone burglar alarm with door/window contact supervision, siren control, and keypad scanning. IC Role / Device Role / Timing Role: Central state machine coordinating sensor polling, buzzer activation, and LCD display updates. Use Value: 16 GPIO directly interface reed switches and piezo sirens; deep-sleep mode reduces standby current to <10 µA; RTC-less design lowers BOM cost. | Use Scenario: Washing machine user interface board with button matrix, LED indicators, and motor control signaling. IC Role / Device Role / Timing Role: Front-end controller decoding push-button inputs, driving status LEDs, and communicating motor commands via UART to main MCU. Use Value: SO20 package fits compact UI PCB; 1 kB SRAM buffers keypress events; UART handles reliable command transmission to main controller. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1111FDH20/002 | 8 kB flash, 2 kB SRAM, TSSOP20 package - identical peripheral set and pin-compatible with LPC1110FD20Y except for increased memory | Supports larger firmware images and more complex protocol stacks (e.g., Modbus RTU with CRC tables) | Select when firmware growth exceeds 4 kB or additional RAM is needed for buffer-intensive tasks |
| LPC1112FD20/102 | 16 kB flash, 4 kB SRAM, same SO20 package - adds second SPI interface and windowed watchdog timer (LPC1100L series) | Enables dual peripheral interfacing (e.g., SPI flash + SPI sensor) and enhanced safety-critical reset behavior | Choose for designs requiring expanded memory, dual SPI, or certified watchdog functionality without changing PCB layout |
Compared with LPC1110FD20Y, LPC1111FDH20/002 offers double flash and RAM in a pin-compatible TSSOP20 variant, while LPC1112FD20/102 provides quadruple flash, doubled RAM, and added peripherals in the same SO20 footprint - both extend scalability without redesigning the board.
Availability
LPC1110FD20Y is available at Aetrix Electronics and suitable for smart metering, LED lighting control, and security alarm systems requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for LPC1110FD20Y 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 LPC111x series targets cost-sensitive 32-bit embedded applications where energy efficiency, small footprint, and rapid time-to-market outweigh raw performance - especially in metering, lighting, and home security.
FAQ
What is the maximum operating frequency of the LPC1110FD20Y?
The LPC1110FD20Y operates at a maximum CPU frequency of 50 MHz, achievable via its internal PLL driven by either the 12 MHz internal RC oscillator or an external crystal (1–25 MHz). This frequency enables deterministic real-time response for control loops and communication protocols without requiring high-frequency external clocks.
Does the LPC1110FD20Y support hardware debug interfaces?
Yes, the LPC1110FD20Y includes Serial Wire Debug (SWD) support via dedicated SWDIO (PIO1_3) and SWCLK (PIO0_10) pins. This allows full JTAG-style debugging including breakpoints, register inspection, and flash programming using standard ARM-compliant tools like LPC-Link2 or CMSIS-DAP debug probes.
How many analog input channels does the LPC1110FD20Y ADC support?
The LPC1110FD20Y integrates a 10-bit ADC with input multiplexing across five pins (AD0–AD4), corresponding to PIO0_11, PIO1_0, PIO1_1, PIO1_2, and PIO1_3. This matches the SO20 package's physical pin count and enables simultaneous monitoring of multiple analog signals in space-constrained designs.
Is the LPC1110FD20Y pin-compatible with other LPC111x SO20 variants?
Yes, the LPC1110FD20Y shares identical pinout and package (SO20, SOT163-1) with LPC1112FD20/102 and LPC1111FDH20/002 (TSSOP20 variant differs). All SO20 variants use the same signal mapping, allowing direct substitution where flash/SRAM requirements permit - verified per NXP's official pin description tables.
What power-saving modes are implemented in the LPC1110FD20Y?
The LPC1110FD20Y implements three reduced-power modes: Sleep (core clock gated, peripherals active), Deep-sleep (core and most peripherals powered down, RAM retained), and Deep power-down (full retention loss except for reset logic). Wake-up from Deep-sleep is supported via up to 13 GPIO pins, enabling ultra-low standby current in battery-powered applications.
LPC1110FD20Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Series:
- LPC11xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit
- Speed:
- 50MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, WDT
- Number of I/O:
- 16
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 5x10b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC1110FD20Y FAQ
1.How can I place an order for LPC1110FD20Y through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1110FD20Y 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 LPC1110FD20Y reliable?
The price and inventory of LPC1110FD20Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1110FD20Y is usually 5 days.
3.What payment methods are accepted for LPC1110FD20Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1110FD20Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1110FD20Y?
LPC1110FD20Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1110FD20Y 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 LPC1110FD20Y?
For technical support, including LPC1110FD20Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1110FD20Y requirements.
6.How does Aetrix verify that LPC1110FD20Y is sourced from the original manufacturer or authorized distributors?
All LPC1110FD20Y 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 LPC1110FD20Y meets industry standards.
7.What is the process for return or replacement of LPC1110FD20Y?
All LPC1110FD20Y units undergo pre-shipment inspection (PSI). If there is an issue with LPC1110FD20Y, 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 LPC1110FD20Y part is unused and in its original packaging.
Return procedure for LPC1110FD20Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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