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NXP Semiconductors LPC1224FBD64/121,1
- Part No.:
- LPC1224FBD64/121,1
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
LPC1224FBD64/121,1.pdf
- Description:
- IC MCU 32BIT 48KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:320
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Product details
Overview
LPC1224FBD64/121 from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller targeting industrial automation and embedded control applications. It operates at up to 45 MHz, integrates 48 kB flash and 4 kB SRAM, features a 10-bit 8-channel ADC, two analog comparators with programmable output feedback, and supports UART, I²C-Fast-mode Plus (1 Mbit/s), and SSP/SPI interfaces. It delivers deterministic real-time performance in factory automation sensor nodes.
For engineers reviewing the LPC1224FBD64/121 datasheet, LPC1224FBD64/121 pinout, LPC1224FBD64/121 application, or LPC1224FBD64/121 equivalent, key selection criteria include its 64-pin LQFP package, 48 kB flash/4 kB SRAM memory configuration, IEC-60335 Class B-certified Windowed Watchdog Timer, 3.3 V operation, and support for in-field programming via ISP/IAP with 512-byte flash page erase.
Technical Context
The LPC1224FBD64/121 implements the ARM Cortex-M0 core with Thumb instruction set, achieving 1.51 CoreMark/MHz and supporting zero-wait-state execution at 30 MHz from flash. Its ROM-based integer division library delivers several times higher arithmetic throughput than software-only implementations while reducing flash footprint.
Peripherally, it integrates a micro-DMA controller with 21 channels, CRC engine, four general-purpose timers (including two 32-bit and two 16-bit variants), RTC with 32 kHz oscillator support, and dual UARTs - one with RS-485/modem features and fractional baud rate generation, the other with IrDA support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, up to 45 MHz (1 wait state) or 30 MHz (zero wait states) |
| Flash Memory | 48 kB - enables compact firmware for industrial control logic with room for bootloader and field-upgradable code |
| SRAM | 4 kB - sufficient for real-time task stacks, peripheral buffers, and small data logging in sensor nodes |
| ADC | 10-bit, 8-channel - supports precision analog sensing of temperature, voltage, or current in white goods and metering |
| Timers | Four GP timers (two 32-bit, two 16-bit), each with capture/match capability - enables PWM generation, pulse measurement, and time-critical event handling |
| I²C Interface | Fast-mode Plus (1 Mbit/s) with glitch filtering and multi-address recognition - ensures robust communication with sensors and displays in noisy industrial environments |
| Watchdog | Windowed Watchdog Timer (WWDT), IEC-60335 Class B certified - meets safety requirements for household and industrial appliances |
Pinout & Package
LPC1224FBD64/121 is housed in a 64-pin LQFP package (SOT314-2), measuring 10 × 10 × 1.4 mm, with 55 GPIO pins, dedicated debug (SWDIO/SWCLK), reset, crystal (XTALIN/XTALOUT), RTC (RTCXIN/RTCXOUT), and power (VDD(3V3), VDD(IO), VSS, VSSIO) terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET/PIO0_13 | Reset input / GPIO | Active-low external reset; default pull-up enables reliable power-on and brownout recovery |
| SWDIO/PIO0_25 & SWCLK/PIO0_26 | Debug interface | Standard Serial Wire Debug pins - enable non-intrusive firmware debugging and programming without JTAG overhead |
| XTALIN/XTALOUT | Clock input/output | Supports 1–25 MHz crystal oscillator - provides stable system clock with low jitter for timing-critical peripherals |
| VREF_CMP | Analog reference | External reference voltage input for comparators - allows precise threshold setting independent of supply rail |
| PIO0_19–PIO0_22 & PIO0_23–PIO0_24 | Comparator inputs | Dedicated analog input pins for two comparators - enable fast overvoltage, zero-crossing, or window-detection circuits |
| PIO0_27 & PIO0_28 | Comparator outputs | Direct comparator output pins - can trigger timer match events or emulate 555 timer behavior without external components |
Key Features
| Feature | Design Value |
|---|---|
| ROM-based integer division | Hardware-accelerated 32-bit divide reduces CPU cycles by >70% vs. software libraries, improving deterministic interrupt latency |
| 512-byte flash page erase | Enables fine-grained EEPROM emulation and in-field firmware updates with minimal RAM buffering (≤512 B required) |
| Programmable GPIO drive | All 55 GPIO pins support configurable pull-up, open-drain, digital glitch filter, and input invert - simplifies interface to diverse sensors and actuators |
| High-current GPIO | Four pins (PIO0_12, PIO0_27, PIO0_28, PIO0_29) support high-drive mode - directly drive LEDs, relays, or small solenoids without external drivers |
| Wake-up from Deep power-down | RTC or 12 port pins can wake CPU - enables ultra-low-power battery operation in alarm systems and remote sensors |
Applications
| Smart Metering | Industrial Lighting Control |
|---|---|
Use Scenario: Two-way electricity/water/gas meter with tamper detection, pulse counting, and HAN communication. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing UART/RS-485 HAN interface, and sampling ADC for current/voltage sensing. Use Value: 48 kB flash accommodates secure firmware + metrology stack; 10-bit ADC enables ±0.5% energy measurement accuracy; WWDT ensures fail-safe meter reset under fault conditions. | Use Scenario: DALI or 0–10 V dimmable LED driver with thermal monitoring and occupancy sensing. IC Role / Device Role / Timing Role: Real-time lighting controller interfacing with DALI transceiver, reading ambient light/temperature sensors, and generating PWM dimming signals. Use Value: Dual UARTs support DALI bus and debug interface simultaneously; programmable GPIO glitch filters suppress EMI from switching power supplies; high-current GPIO drives status LEDs directly. |
| Factory Automation I/O Module | Home Appliance Control |
Use Scenario: DIN-rail mounted digital input/output module for PLC edge nodes, monitoring limit switches and driving solenoid valves. IC Role / Device Role / Timing Role: Deterministic I/O processor handling discrete input debouncing, output latching, and Modbus RTU over UART. Use Value: 55 GPIO pins support 32 DI + 16 DO configurations; micro-DMA offloads UART/ADC transfers from CPU; 3.3 V tolerant I/O eliminates level-shifting for 24 V industrial signals. | Use Scenario: Washing machine main control board managing motor drive, water level, temperature, and user interface. IC Role / Device Role / Timing Role: Central MCU coordinating motor control via PWM, reading thermistors/pressure sensors, and driving display/keypad via I²C. Use Value: I²C Fast-mode Plus (1 Mbit/s) enables fast display refresh; two analog comparators implement anti-flood and door-lock interlock logic; IEC-60335 WWDT satisfies appliance safety certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1225FBD64/301 | 64 kB flash, 8 kB SRAM - +16 kB flash and +4 kB SRAM vs. LPC1224FBD64/121 | Preferred where larger firmware image (e.g., integrated Modbus stack + OTA update) or extended data buffering is required | Select when additional memory headroom justifies cost premium; identical pinout and peripheral set ensure drop-in replacement |
| LPC1114FBD48/102 | ARM Cortex-M0, 32 kB flash, 4 kB SRAM, 48-pin LQFP - smaller package, reduced peripheral count (no WWDT Class B, no comparator outputs) | Suitable for cost-sensitive, lower-complexity controls (e.g., basic fan speed regulator) without safety certification or analog feedback loops | Choose for space-constrained designs where 55 GPIO and WWDT certification are not needed; requires PCB redesign due to 48-pin vs. 64-pin footprint |
Compared with LPC1225FBD64/301, the LPC1224FBD64/121 trades flash/SRAM capacity for tighter BOM cost control in volume production; versus LPC1114FBD48/102, it delivers certified safety, richer analog I/O, and full 64-pin expandability - making it optimal for industrial-grade, safety-aware edge controllers.
Availability
LPC1224FBD64/121 is available at Aetrix Electronics and suitable for smart metering, industrial lighting control, and factory automation I/O modules requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for LPC1224FBD64/121 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 applications, with deep expertise in ARM-based microcontrollers and safety-certified embedded systems.
The LPC122x product line was designed specifically for cost-sensitive, safety-aware industrial control applications - integrating Class B watchdog, analog comparators, and robust communication peripherals into a single low-power Cortex-M0 device.
FAQ
What is the maximum operating frequency of the LPC1224FBD64/121 and under what conditions?
The LPC1224FBD64/121 operates at up to 45 MHz with one wait state from flash memory, or at 30 MHz with zero wait states. This performance is achieved using the ARM Cortex-M0 core and verified through CoreMark benchmarking at 1.51 points per MHz. The actual sustained frequency depends on flash access timing and system clock configuration, and the LPC1224FBD64/121 supports PLL-based clock scaling to reach the maximum CPU rate without requiring a high-frequency crystal.
Does the LPC1224FBD64/121 support in-system programming (ISP) and in-application programming (IAP)?
Yes, the LPC1224FBD64/121 supports both ISP and IAP via an on-chip bootloader. This capability allows firmware updates over UART or other serial interfaces without external programming hardware. The 512-byte flash page erase size minimizes RAM buffer requirements during field updates, and the LPC1224FBD64/121's ROM-based routines ensure reliable execution of the programming sequence even during partial memory writes.
How many GPIO pins does the LPC1224FBD64/121 provide, and what advanced I/O features are supported?
The LPC1224FBD64/121 provides up to 55 General Purpose I/O pins in its 64-pin LQFP package. Each pin supports programmable pull-up resistors, open-drain mode, digital input glitch filtering, and input inversion. Four pins (PIO0_12, PIO0_27, PIO0_28, PIO0_29) feature high-current drive capability, enabling direct connection to LEDs or small actuators. All GPIOs can serve as edge- or level-sensitive interrupt sources, and their functions are configured via the IOCONFIG register block.
Is the LPC1224FBD64/121 certified for safety-critical applications such as household appliances?
Yes, the LPC1224FBD64/121 includes a Windowed Watchdog Timer (WWDT) certified to IEC-60335 Class B, making it suitable for safety-critical applications including white goods and industrial equipment. This certification validates the WWDT's ability to detect and recover from software faults within defined time windows, fulfilling mandatory requirements for UL/EN 60335 compliance. The LPC1224FBD64/121 also integrates brownout detection with three programmable thresholds to prevent erratic operation during supply dips.
What analog peripherals are integrated into the LPC1224FBD64/121 and how are they typically used?
The LPC1224FBD64/121 integrates an 8-channel, 10-bit ADC and two highly flexible analog comparators. The ADC supports precision sensing of temperature, voltage, or current in applications like eMetering and appliance control. Each comparator has four selectable inputs and programmable outputs that can trigger timer match events or emulate 555 timer behavior - enabling overvoltage protection, zero-crossing detection, or window-comparator functions without external components. The LPC1224FBD64/121's VREF_CMP pin allows use of an external reference for improved ADC and comparator accuracy.
LPC1224FBD64/121,1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- LPC1200
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- Speed:
- 45MHz
- Connectivity:
- I2C, IrDA, Microwire, SPI, SSI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, WDT
- Number of I/O:
- 55
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC1224FBD64/121,1 FAQ
1.How can I place an order for LPC1224FBD64/121,1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1224FBD64/121,1 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 LPC1224FBD64/121,1 reliable?
The price and inventory of LPC1224FBD64/121,1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1224FBD64/121,1 is usually 5 days.
3.What payment methods are accepted for LPC1224FBD64/121,1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1224FBD64/121,1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1224FBD64/121,1?
LPC1224FBD64/121,1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1224FBD64/121,1 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 LPC1224FBD64/121,1?
For technical support, including LPC1224FBD64/121,1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1224FBD64/121,1 requirements.
6.How does Aetrix verify that LPC1224FBD64/121,1 is sourced from the original manufacturer or authorized distributors?
All LPC1224FBD64/121,1 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 LPC1224FBD64/121,1 meets industry standards.
7.What is the process for return or replacement of LPC1224FBD64/121,1?
All LPC1224FBD64/121,1 units undergo pre-shipment inspection (PSI). If there is an issue with LPC1224FBD64/121,1, 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 LPC1224FBD64/121,1 part is unused and in its original packaging.
Return procedure for LPC1224FBD64/121,1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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