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NXP Semiconductors LPC12H27FBD64/301,
- Part No.:
- LPC12H27FBD64/301,
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
LPC12H27FBD64/301,.pdf
- Description:
- LPC1200 - Cortex-M0 32-Bit RISC
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Product details
Overview
LPC12H27FBD64/301 from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller designed for industrial automation and embedded control, operating at up to 45 MHz with 128 kB flash, 8 kB SRAM, and 55 GPIO pins. It integrates a 10-bit ADC, two analog comparators, dual UARTs (one with RS-485 support), I²C-Fast-mode Plus (1 Mbit/s), SSP/SPI, CRC engine, DMA controller, and RTC - enabling compact, low-power sensor interface and communication nodes in factory and home automation systems.
For engineers reviewing the LPC12H27FBD64/301 datasheet, LPC12H27FBD64/301 pinout, LPC12H27FBD64/301 application, or LPC12H27FBD64/301 equivalent, key selection criteria include its LQFP64 package with 55 GPIO, 128 kB flash for firmware scalability, IEC-60335 Class B-certified Windowed Watchdog Timer, and high-current output drivers on four pins for direct LED or relay drive without external buffers.
Technical Context
The LPC12H27FBD64/301 implements the ARM Cortex-M0 core with Thumb instruction set, achieving 1.51 CoreMark/MHz and deterministic cycle timing via ROM-based integer division. Its clock system supports crystal (1–25 MHz), 12 MHz ±1 % internal RC oscillator, and PLL for full-speed operation without external high-frequency crystals.
Digital peripherals include a 21-channel micro-DMA controller, programmable glitch-filtered I²C and GPIO, four general-purpose timers (two 32-bit, two 16-bit), and dual UARTs with fractional baud rate generation and FIFO. Analog subsystem comprises an 8-channel 10-bit ADC and two flexible comparators whose outputs can trigger timer matches or emulate 555-timer behavior via ROSC pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, up to 45 MHz (1 wait state) - enables efficient real-time control with 50 % higher code density vs. 8/16-bit MCUs. |
| Memory | 128 kB flash (512-byte page erase) + 8 kB SRAM - supports EEPROM emulation, bootload over serial, and reduced RAM buffer requirements for field updates. |
| Analog Peripherals | 8-channel 10-bit ADC + two analog comparators with programmable output routing - enables sensor signal conditioning and threshold-triggered event generation. |
| Digital Interfaces | 2× UART (one with RS-485/modem support), 1× I²C-Fast-mode Plus (1 Mbit/s), 1× SSP/SPI - provides robust industrial serial connectivity with noise immunity and multi-protocol flexibility. |
| Timers & Control | Four general-purpose timers (32-/16-bit), Windowed Watchdog Timer (IEC-60335 Class B certified), RTC with 32 kHz oscillator - ensures time-critical task scheduling and safety-compliant system supervision. |
| Power Management | Three low-power modes (Sleep, Deep-sleep, Deep power-down); wake-up via 12 port pins or RTC - extends battery life in remote monitoring nodes while maintaining fast restart capability. |
| Package & I/O | LQFP64 (10 × 10 × 1.4 mm), 55 GPIO with programmable pull-up, open-drain, glitch filter, and four high-current output drivers - simplifies PCB layout for mixed-signal industrial I/O expansion. |
Pinout & Package
LQFP64 package (SOT314-2), 10 × 10 × 1.4 mm body, 64 leads, 3.3 V supply only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XTALIN / XTALOUT | Crystal oscillator input/output | Supports 1–25 MHz external crystal for precise system clock; internal 12 MHz ±1 % IRC available as fallback. |
| RESET/PIO0_13 | Reset input / GPIO | Active-low reset with external pull-up required for Deep power-down mode recovery; default function after reset. |
| SWDIO / SWCLK | Serial Wire Debug interface | Two-pin debug interface (pins 10/11 on LQFP64) enables non-intrusive programming and real-time trace without JTAG overhead. |
| PIO0_27 / PIO0_28 | Comparator outputs (ACMP0_O / ACMP1_O) | High-current output drivers (3.3 V tolerant) - directly drive LEDs, small relays, or logic inputs without external buffers. |
| VREF_CMP | Analog comparator reference | External reference voltage input for precision threshold comparison; decoupling recommended for noise-sensitive applications. |
| RTCXIN / RTCXOUT | 32 kHz RTC oscillator | Connects to external 32.768 kHz crystal for battery-backed real-time clock; pins may float if RTC unused. |
| VDD(3V3) / VSS | Main power / ground | 3.3 V core supply (also ADC reference); separate VDD(IO)/VSSIO for I/O domain - allows clean analog/digital partitioning. |
Key Features
| Feature | Design Value |
|---|---|
| ROM-based integer division | Hardware-accelerated 32-bit divide routines deliver several times faster arithmetic than software libraries, reducing flash footprint and improving deterministic timing. |
| Programmable GPIO glitch filter | Configurable digital input filtering per pin suppresses EMI-induced noise in industrial environments without external RC networks. |
| I²C Fast-mode Plus (1 Mbit/s) | Enables high-speed sensor bus communication with multiple address recognition and monitor mode - ideal for dense industrial node networks. |
| Windowed Watchdog Timer | IEC-60335 Class B certified - prevents runaway code in safety-critical white goods and alarm systems via time-windowed refresh requirement. |
| Relaxation oscillator (ROSC) | Integrated 555-timer emulation circuit on PIO0_29 - eliminates external components for simple timing or PWM generation in lighting and metering. |
Applications
| eMetering | Lighting Control |
|---|---|
Use Scenario: Smart electricity/water meters requiring tamper-resistant data logging, pulse counting, and secure communication. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing optical/inductive sensors, and driving RS-485/PLC communication stacks. Use Value: 128 kB flash accommodates firmware updates and encryption libraries; 10-bit ADC and comparator inputs enable accurate current/voltage sampling and fault detection. |
Use Scenario: Dimmable LED drivers and smart luminaires with DALI, 0–10 V, or wireless control interfaces. IC Role / Device Role / Timing Role: Real-time PWM generator and communication bridge between lighting bus and analog/digital sensors. Use Value: Four high-current GPIO pins drive LED strings directly; ROSC pin emulates 555 timer for analog dimming; I²C-Fast-mode Plus supports multi-sensor thermal feedback. |
| Industrial Networking | Alarm Systems |
Use Scenario: Fieldbus gateways and protocol converters linking Modbus RTU, CAN, or proprietary sensors to Ethernet/Wi-Fi backbones. IC Role / Device Role / Timing Role: Protocol translation engine with dual UARTs (RS-485 + IrDA), CRC offload, and DMA-accelerated packet buffering. Use Value: Micro-DMA controller handles serial data movement without CPU load; 55 GPIO allow flexible peripheral expansion for isolated I/O modules. |
Use Scenario: Intrusion detection panels and fire alarm controllers needing certified watchdog supervision and low-power standby. IC Role / Device Role / Timing Role: Safety-certified system supervisor managing zone inputs, siren outputs, and battery-backed RTC for event timestamping. Use Value: IEC-60335 Class B WWDT ensures fail-safe reset; Deep power-down mode draws <1 µA during standby; 32-bit RTC maintains audit trail across power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC11U37FBD64/301 | ARM Cortex-M0+, 50 MHz, USB 2.0 device controller, 128 kB flash, 12 kB SRAM - lacks RS-485 UART and ROSC but adds native USB. | Better suited for PC-connected devices (e.g., USB HID sensors); unsuitable where RS-485 or 555 emulation is required. | Select LPC11U37FBD64/301 only when USB host/device interface is mandatory and RS-485 is absent from system architecture. |
| LPC1343FBD48 | ARM Cortex-M3, 72 MHz, 32 kB flash, 8 kB SRAM, LQFP48 - higher performance but smaller memory and fewer GPIO (39 vs. 55). | Targeted at cost-constrained, compute-intensive tasks (e.g., motor control); insufficient flash/GPIO for full-featured metering or gateway designs. | Choose LPC1343FBD48 only for legacy Cortex-M3 toolchain compatibility or when 72 MHz deterministic execution outweighs memory and I/O needs. |
Compared with LPC11U37FBD64/301 and LPC1343FBD48, the LPC12H27FBD64/301 uniquely balances industrial I/O count (55 GPIO), RS-485-ready UART, ROSC-based timing, and IEC-60335 certification - making it optimal for certified, sensor-rich, field-bus-connected embedded controllers where USB or raw M3 speed are secondary.
Availability
LPC12H27FBD64/301 is available at Aetrix Electronics and suitable for eMetering, industrial networking, and alarm systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for LPC12H27FBD64/301 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 leader specializing in 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 - including LPC12H27FBD64/301 - was engineered for cost-sensitive, reliability-critical industrial automation, delivering optimized Cortex-M0 efficiency, integrated analog peripherals, and IEC-60335 compliance for white goods and building control.
FAQ
What is the maximum operating frequency of the LPC12H27FBD64/301?
The LPC12H27FBD64/301 operates at up to 45 MHz from flash memory with one wait state. At 30 MHz, zero wait states are required, enabling deterministic execution timing critical for real-time control loops. This frequency is sustained using either the internal 12 MHz ±1 % RC oscillator with PLL or an external crystal (1–25 MHz) - no external high-frequency crystal is needed for full-speed operation.
Does the LPC12H27FBD64/301 support IEC-60335 Class B safety certification?
Yes, the LPC12H27FBD64/301 includes a Windowed Watchdog Timer (WWDT) certified to IEC-60335 Class B, making it suitable for household and similar electrical appliances requiring fail-safe supervision. The WWDT enforces strict time-windowed refresh intervals, preventing both premature timeout and delayed reset - a mandatory feature for certified alarm systems and white goods controllers.
How many GPIO pins does the LPC12H27FBD64/301 provide, and which support high-current drive?
The LPC12H27FBD64/301 provides 55 General Purpose I/O pins in its LQFP64 package. Four of these - specifically PIO0_27, PIO0_28, PIO0_29, and PIO1_0 - are designated as high-current output drivers, capable of sourcing/sinking higher current than standard GPIO. This enables direct interfacing with LEDs, small relays, or logic-level MOSFET gates without external driver circuitry.
What analog peripherals are integrated into the LPC12H27FBD64/301?
The LPC12H27FBD64/301 integrates an 8-channel 10-bit ADC and two highly flexible analog comparators. Each comparator features four selectable inputs (ACMP0_I0–I3, ACMP1_I0–I3) and outputs (ACMP0_O, ACMP1_O) that can be routed to timer match signals or used standalone. The VREF_CMP pin allows external reference voltage for precision thresholding, and the ROSC pin (PIO0_29) enables hardware-based 555-timer emulation.
Is the LPC12H27FBD64/301 pin-compatible with other members of the LPC122x family?
Yes, the LPC12H27FBD64/301 shares identical pinout and package (LQFP64, SOT314-2) with all other LPC122x variants in the same package option, including LPC1226FBD64/301 and LPC1225FBD64/301. Firmware and hardware designs are interchangeable at the board level - only flash size (128 kB vs. 96/64 kB) and certain peripheral enablement differ, allowing scalable design reuse across performance tiers.
LPC12H27FBD64/301, Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- -
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- -
- Core Size:
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- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
LPC12H27FBD64/301, FAQ
1.How can I place an order for LPC12H27FBD64/301, through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC12H27FBD64/301, 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 LPC12H27FBD64/301, reliable?
The price and inventory of LPC12H27FBD64/301, are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC12H27FBD64/301, is usually 5 days.
3.What payment methods are accepted for LPC12H27FBD64/301,?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC12H27FBD64/301, transactions.
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4.How is shipping managed for LPC12H27FBD64/301,?
LPC12H27FBD64/301, orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC12H27FBD64/301, 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 LPC12H27FBD64/301,?
For technical support, including LPC12H27FBD64/301, datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC12H27FBD64/301, requirements.
6.How does Aetrix verify that LPC12H27FBD64/301, is sourced from the original manufacturer or authorized distributors?
All LPC12H27FBD64/301, 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 LPC12H27FBD64/301, meets industry standards.
7.What is the process for return or replacement of LPC12H27FBD64/301,?
All LPC12H27FBD64/301, units undergo pre-shipment inspection (PSI). If there is an issue with LPC12H27FBD64/301,, 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 LPC12H27FBD64/301, part is unused and in its original packaging.
Return procedure for LPC12H27FBD64/301,:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPC12H27FBD64/301, Tags
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