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NXP Semiconductors LPC1227FBD48/301J
- Part No.:
- LPC1227FBD48/301J
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
LPC1227FBD48/301J.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,682
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Product details
Overview
LPC1227FBD48/301 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 128 kB flash and 8 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 LPC1227FBD48/301 datasheet, LPC1227FBD48/301 pinout, LPC1227FBD48/301 application, or LPC1227FBD48/301 equivalent, key selection criteria include its 48-pin LQFP package with 39 GPIOs, IEC-60335 Class B-certified Windowed Watchdog Timer, ROM-based integer division library, and support for Deep power-down wake-up via RTC or 12 port pins.
Technical Context
The LPC1227FBD48/301 implements an ARM Cortex-M0 core with Nested Vectored Interrupt Controller (NVIC) and Serial Wire Debug (SWD), enabling deterministic interrupt latency and low-overhead debug access. Its clock system includes a 1–25 MHz crystal oscillator, 12 MHz ±1 % internal RC oscillator, and PLL for flexible CPU clock derivation without external high-frequency crystals.
Digital peripherals are tightly integrated via AHB/APB bridges: a 21-channel Micro DMA controller offloads CPU during data transfers; CRC engine accelerates checksum computation; and four general-purpose timers (two 32-bit, two 16-bit) support capture/match functions across multiple GPIOs. Analog subsystem comprises one 10-bit ADC with eight inputs and two comparators whose outputs can trigger timer events or emulate 555-timer behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, up to 45 MHz with one wait state from flash - enables high code density and deterministic execution for real-time control loops. |
| Memory | 128 kB on-chip flash (512-byte page erase) and 8 kB SRAM - supports robust in-field firmware updates and EEPROM emulation with minimal RAM buffering. |
| Analog Peripherals | 10-bit 8-channel ADC and two analog comparators with programmable output routing - provides direct sensor interface and hardware-level threshold detection without CPU intervention. |
| Digital Interfaces | Two UARTs (one with RS-485/modem support), I²C-Fast-mode Plus (1 Mbit/s), SSP/SPI - enables interoperability with industrial fieldbus peripherals and legacy serial sensors. |
| Power Management | Three low-power modes (Sleep, Deep-sleep, Deep power-down) with RTC- or GPIO-triggered wake-up - extends battery life in remote monitoring nodes while maintaining fast response. |
| Security & Reliability | IEC-60335 Class B-certified Windowed Watchdog Timer and brownout detect with three thresholds - ensures fail-safe operation in safety-critical white goods and alarm systems. |
| Package | LQFP48 (7 × 7 × 1.4 mm, SOT313-2) with 39 GPIOs - offers compact footprint for space-constrained industrial PCBs while retaining full peripheral accessibility. |
Pinout & Package
LQFP48 package (SOT313-2), 7 mm × 7 mm body, 1.4 mm height, 48 leads. Pin pitch: 0.5 mm. Exposed pad not present. Compatible with standard reflow profiles for lead-free assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (XTALIN) | Crystal oscillator input | Accepts 1–25 MHz external crystal; required for precise timing in metering or RTC applications. |
| 2 (XTALOUT) | Crystal oscillator output | Drives external crystal; must be connected directly to XTALIN with appropriate load capacitors. |
| 3 (VREF_CMP) | Analog comparator reference | Provides stable reference voltage for both comparators; decoupling recommended for noise-sensitive measurements. |
| 10 (SWDIO) | Serial Wire Debug I/O | Primary debug interface for programming and real-time tracing; shares pin with ACMP1_I2 and CT32B1_CAP2. |
| 11 (SWCLK) | Serial Wire Debug clock | Clock input for SWD protocol; default location for debug synchronization; shares pin with ACMP1_I3. |
| 28 (RESET/PIO0_13) | Active-low reset input | External reset assertion forces processor restart and peripheral initialization; internal pull-up enabled; requires external pull-up for Deep power-down mode. |
| 44 (VDD(3V3)) | Main supply for core and ADC | 3.3 V regulated input powering CPU, memory, and ADC; also serves as ADC reference voltage - critical for measurement accuracy. |
| 47 (VDD(IO)) | I/O supply voltage | 3.3 V supply for GPIOs and digital peripherals; tolerant of 3.3 V logic levels; separate from VDD(3V3) for noise isolation. |
| 48 (VSSIO) | I/O ground | Dedicated ground return for digital I/O circuits; should be routed separately from analog ground to minimize coupling noise. |
| 43 (VSS) | Analog/core ground | Ground reference for CPU, SRAM, flash, and ADC; connects to system ground plane; separation from VSSIO improves ADC SNR. |
Key Features
| Feature | Design Value |
|---|---|
| ROM-based integer division | Delivers several times higher arithmetic throughput than software libraries, reducing flash usage and improving loop determinism in control algorithms. |
| Small 512-byte flash page erase | Enables fine-grained firmware updates and reliable EEPROM emulation with reduced RAM overhead for bootloader operations. |
| Comparator output feedback | Allows comparator outputs to directly trigger timer match signals or emulate 555 timer behavior - eliminates need for external discrete components. |
| Programmable GPIO drive strength | Four high-current output drivers (e.g., PIO0_27, PIO0_28) support direct LED or relay driving without external buffers. |
| I²C Fast-mode Plus (1 Mbit/s) | Enables high-speed communication with modern sensors and displays while maintaining backward compatibility with standard I²C devices. |
Applications
| eMetering | Lighting Control |
|---|---|
Use Scenario: Smart electricity meter with tamper detection, energy accumulation, and HAN communication. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing SPI-connected ADCs, and handling I²C-based display and communication modules. Use Value: 128 kB flash stores dual-metering firmware and secure boot code; IEC-60335 WWDT ensures compliance with safety standards for utility-grade meters. | Use Scenario: DALI-compatible LED driver with dimming profile storage and thermal monitoring. IC Role / Device Role / Timing Role: System manager interfacing with DALI transceiver via UART, reading temperature sensors via ADC, and controlling PWM outputs via timer match registers. Use Value: 39 GPIOs accommodate multiple LED channels and sensor inputs; ROM division accelerates real-time dimming curve calculation. |
| Industrial Networking | Alarm Systems |
Use Scenario: RS-485 field device node collecting sensor data and forwarding via Modbus RTU. IC Role / Device Role / Timing Role: Protocol handler using UART0's RS-485 support and DMA for zero-CPU-load packet transmission. Use Value: Two UARTs allow simultaneous Modbus master/slave operation; Deep-sleep mode reduces standby current to extend battery life in wireless gateways. | Use Scenario: Intrusion detection panel with door/window contact inputs, siren control, and backup battery supervision. IC Role / Device Role / Timing Role: Central security controller managing GPIO-based zone inputs, driving sirens via high-current outputs, and logging events to flash. Use Value: Brownout detect with three thresholds prevents false alarms during brownout conditions; RTC maintains accurate event timestamps during mains failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1226FBD48/301 | 96 kB flash, same 8 kB SRAM, identical peripherals and pinout | Lower firmware capacity margin for complex protocol stacks or OTA update partitions | Select when application firmware fits within 96 kB and cost sensitivity outweighs future scalability needs. |
| LPC1115FBD48/302 | ARM Cortex-M0, 32 kB flash, 4 kB SRAM, no comparators, no WWDT certification | Lacks IEC-60335 WWDT and analog comparator feedback - unsuitable for safety-critical or sensor-hardware-accelerated designs | Choose only for basic control tasks where certification and analog integration are unnecessary and BOM cost is primary constraint. |
Compared with LPC1226FBD48/301, the LPC1227FBD48/301 provides 32 kB additional flash for firmware redundancy or feature expansion; versus LPC1115FBD48/302, it adds certified watchdog, analog comparators, and 2× SRAM - making it essential for industrial-grade reliability and mixed-signal integration.
Availability
LPC1227FBD48/301 is available at Aetrix Electronics and suitable for eMetering, lighting control, and industrial networking applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for LPC1227FBD48/301 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 specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with leadership in ARM-based microcontrollers and edge processing.
The LPC122x product line was designed specifically for cost-sensitive, resource-constrained industrial control applications - emphasizing low-power operation, analog integration, and functional safety compliance in factory and home automation systems.
FAQ
What is the maximum operating frequency of the LPC1227FBD48/301?
The LPC1227FBD48/301 operates at a maximum CPU frequency of 45 MHz when configured with one wait state from flash memory. At 30 MHz, it achieves zero wait states for optimal instruction throughput in time-critical control loops. This frequency is derived from the internal PLL driven by either the 1–25 MHz crystal oscillator or the 12 MHz ±1 % internal RC oscillator.
Does the LPC1227FBD48/301 support in-system programming (ISP)?
Yes, the LPC1227FBD48/301 supports In-System Programming (ISP) via its on-chip bootloader, enabling firmware updates over UART0 or UART1 without requiring external programming hardware. The bootloader is pre-programmed in ROM and activated by asserting a specific pin state during reset, allowing field upgrades and manufacturing flexibility.
How many GPIO pins are available on the LPC1227FBD48/301 in the LQFP48 package?
The LPC1227FBD48/301 provides 39 General Purpose I/O pins in its LQFP48 package. These include all usable port pins across Port 0 (PIO0_0 to PIO0_31), Port 1 (PIO1_0 to PIO1_6), and Port 2 (PIO2_0 to PIO2_15), excluding dedicated power, reset, and oscillator pins. Four of these - PIO0_27, PIO0_28, PIO0_29, and PIO1_5 - support high-current output drivers.
Is the LPC1227FBD48/301 certified for functional safety applications?
Yes, the LPC1227FBD48/301 includes an IEC-60335 Class B-certified Windowed Watchdog Timer (WWDT), which meets requirements for household and similar electrical appliances. This certification validates its suitability for safety-related functions in white goods and alarm systems where fault detection and recovery are mandatory.
What analog peripherals are integrated into the LPC1227FBD48/301?
The LPC1227FBD48/301 integrates a 10-bit 8-channel ADC and two highly flexible analog comparators. Each comparator supports four selectable inputs and programmable output routing - including triggering timer match events or emulating 555 timer functionality - enabling hardware-accelerated threshold detection without CPU polling.
LPC1227FBD48/301J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- LPC1200
- Packaging:
- Tape & Reel (TR)
- 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:
- 39
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K 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:
LPC1227FBD48/301J FAQ
1.How can I place an order for LPC1227FBD48/301J through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1227FBD48/301J 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 LPC1227FBD48/301J reliable?
The price and inventory of LPC1227FBD48/301J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1227FBD48/301J is usually 5 days.
3.What payment methods are accepted for LPC1227FBD48/301J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1227FBD48/301J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1227FBD48/301J?
LPC1227FBD48/301J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1227FBD48/301J 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 LPC1227FBD48/301J?
For technical support, including LPC1227FBD48/301J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1227FBD48/301J requirements.
6.How does Aetrix verify that LPC1227FBD48/301J is sourced from the original manufacturer or authorized distributors?
All LPC1227FBD48/301J 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 LPC1227FBD48/301J meets industry standards.
7.What is the process for return or replacement of LPC1227FBD48/301J?
All LPC1227FBD48/301J units undergo pre-shipment inspection (PSI). If there is an issue with LPC1227FBD48/301J, 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 LPC1227FBD48/301J part is unused and in its original packaging.
Return procedure for LPC1227FBD48/301J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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