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NXP Semiconductors LPC12D27FBD100/301
- Part No.:
- LPC12D27FBD100/301
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
LPC12D27FBD100/301.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,332
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Product details
Overview
LPC12D27FBD100/301 from NXP Semiconductors is a dual-chip ARM Cortex-M0 microcontroller integrating an LPC1227 MCU and PCF8576D LCD driver in a single 100-pin LQFP package. It delivers 45 MHz CPU operation, 128 kB flash, 8 kB SRAM, and drives up to 40 segments × 4 backplanes for low-power embedded displays in thermostats and white goods.
For engineers reviewing the LPC12D27FBD100/301 datasheet, LPC12D27FBD100/301 pinout, LPC12D27FBD100/301 application, or LPC12D27FBD100/301 equivalent, key selection criteria include integrated LCD drive capability, I²C-based display RAM auto-increment addressing, 10-bit ADC with 8 channels, dual UARTs (one RS-485 capable), and Deep-sleep wake-up via 12 GPIO pins.
Technical Context
The LPC12D27FBD100/301 implements a tightly coupled dual-die architecture: the LPC1227 MCU handles system control, signal processing, and peripheral interfacing, while the PCF8576D LCD controller manages segment/backplane timing, bias generation, and display RAM updates via dedicated I²C interface (LCD_SCL/LCD_SDA). Both subsystems share power domains but operate with independent clock sources - the MCU uses internal RC or crystal oscillator (1–25 MHz), while the LCD driver supports internal oscillator or external CLK input.
Its functional partitioning eliminates external LCD driver ICs and reduces BOM count: the MCU's GPIOs are decoupled from display timing responsibilities, and the PCF8576D provides hardware subaddressing, static/duplex mode switching, and frame-rate control (ffr = fclk/24) without CPU intervention. The integrated design supports 1:2 to 1:4 multiplex ratios with programmable bias and temperature-compensated VLCD regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0 running at up to 45 MHz (1 wait state) or 30 MHz (zero wait states); enables real-time control with CoreMark score >45 (1.51/MHz). |
| Memory | 128 kB on-chip flash + 8 kB SRAM; supports ISP/IAP for field firmware updates without external programmer. |
| LCD Drive Capability | 40 segments × 4 backplanes; eliminates need for discrete LCD driver and simplifies PCB layout for character/segment displays. |
| Analog Peripherals | 8-channel 10-bit ADC + two analog comparators with programmable outputs; enables sensor monitoring and threshold-triggered timer actions. |
| Digital Interfaces | 1 Fast-mode Plus I²C (1 Mbit/s), 2 UARTs (one with RS-485 support), 1 SSP/SPI; provides robust communication for industrial HMI and sensor networks. |
| Power Management | Three low-power modes (Sleep, Deep-sleep, Deep power-down); wake-up from Deep-sleep via 12 GPIO pins or RTC interrupt. |
Pinout & Package
Package: 100-pin LQFP (SOT407-1), 14 mm × 14 mm × 1.4 mm body, 0.5 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| S0–S39 | LCD segment outputs | Drive up to 40 LCD segments directly; each output sourced from VLCD rail with configurable drive strength. |
| BP0–BP3 | LCD backplane outputs | Support 1–4 backplane configurations; enable static, 1:2, 1:3, or 1:4 multiplexed LCD drive without external components. |
| LCD_SDA / LCD_SCL | Dedicated I²C bus for LCD controller | Isolated from main MCU I²C (PIO0_10/PIO0_11); prevents display update interference with system communication. |
| SYNC / CLK | Cascade synchronization & clock I/O | Enable multi-PCF8576D expansion; CLK can be driven by internal oscillator or external source for synchronized frame timing. |
| VDD(3V3) / VSS | Main digital supply & ground | 3.3 V core logic supply; VDD(3V3) also serves as ADC reference voltage for consistent analog measurements. |
| VREF_CMP | Comparator reference input | Accepts external reference for precise analog threshold detection; decouples comparator accuracy from VDD variation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LCD controller | PCF8576D provides 40×4 segment/backplane drive with auto-increment display RAM - reduces CPU load by >70% vs. bit-banged GPIO solutions. |
| Hardware CRC engine | Accelerates checksum calculation for firmware integrity verification and communication protocol compliance (e.g., Modbus CRC-16). |
| Windowed Watchdog Timer | IEC-60335 Class B certified; prevents runaway code in safety-critical white goods and medical applications. |
| Programmable GPIO drive | Four high-current output pins support direct LED driving or relay coil control without external buffers. |
| RTC with wake-up capability | Enables scheduled wake-up from Deep power-down mode - extends battery life in portable medical devices beyond 5 years. |
Applications
| Thermostats | White Goods |
|---|---|
Use Scenario: Digital HVAC control unit with 4-digit segmented LCD display and temperature/humidity sensing. IC Role / Device Role / Timing Role: MCU executes PID loop and display refresh; PCF8576D handles multiplexed segment timing and bias generation independently. Use Value: Eliminates external LCD driver IC and reduces component count by 3–5 parts while maintaining 1:4 multiplex compatibility with standard appliance displays. | Use Scenario: Front-panel control for washing machine with status indicators, cycle progress bar, and error codes. IC Role / Device Role / Timing Role: LPC1227 runs UI state machine and motor control logic; PCF8576D drives 32-segment alphanumeric display with blink control. Use Value: On-chip display RAM auto-increment addressing cuts display update CPU overhead to <500 cycles per frame, freeing bandwidth for real-time motor commutation. |
| Portable Medical Devices | Alarm Systems |
Use Scenario: Battery-powered blood glucose meter with LCD readout and button interface. IC Role / Device Role / Timing Role: MCU manages sensor interface and data logging; PCF8576D maintains display during Deep power-down sleep between measurements. Use Value: Wake-up from Deep power-down via RTC allows 30-second measurement intervals with average current <2 µA - extends CR2032 battery life to >2 years. | Use Scenario: Security panel with keypad, zone status LEDs, and 2-line LCD for arming/disarming feedback. IC Role / Device Role / Timing Role: LPC1227 processes keypad scan and alarm logic; PCF8576D drives 40-segment display showing zone status and time-of-day. Use Value: Dedicated LCD I²C interface isolates display traffic from main system I²C bus - prevents UI freeze during sensor polling or network communication. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller-with-integrated-LCD-driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RA4M1 series (R7FA4M1AB3CFM) | ARM Cortex-M4 core, 48 MHz, 256 kB flash, no integrated LCD driver - requires external segment driver IC. | Higher performance for complex UIs but increases BOM cost and PCB area for LCD interfaces. | Select when advanced graphics or floating-point computation is required; not drop-in for LCD-integrated designs. |
| MSP430FR6989IPZ | MSP430FR5xx/6xx family, 16-bit RISC, 16 MHz, FRAM memory, integrated LCD controller supporting 160 seg × 4 BP. | Superior ultra-low-power operation (<1 µA RTC+LCD active) but lacks ARM ecosystem and peripheral richness (no RS-485 UART, limited DMA). | Prefer for battery-only applications where display persistence and minimal sleep current outweigh processing needs. |
Compared with RA4M1 and MSP430FR6989, the LPC12D27FBD100/301 uniquely balances ARM Cortex-M0 software compatibility, integrated 40×4 LCD drive, and industrial-grade peripherals - making it optimal for cost-sensitive, display-centric embedded controls where external driver elimination is critical.
Availability
LPC12D27FBD100/301 is available at Aetrix Electronics and suitable for thermostats, white goods, and portable medical devices requiring stable component supply across multi-year production cycles.
Supply support for LPC12D27FBD100/301 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.
The LPC12D27FBD100/301 belongs to NXP's LPC1200 family - designed specifically for cost-optimized, display-driven embedded systems where integration of MCU and LCD driver reduces system complexity and bill-of-materials.
FAQ
What is the maximum LCD multiplex ratio supported by the LPC12D27FBD100/301?
The LPC12D27FBD100/301 integrates the PCF8576D LCD controller, which supports 1:2, 1:3, and 1:4 multiplex ratios. Its 40 segments and 4 backplanes allow full 1:4 operation (e.g., 10-digit, 7-segment display), and configuration is handled entirely within the PCF8576D register set - no MCU firmware changes required. The LPC12D27FBD100/301 datasheet confirms this capability in Section 7.2.2 and Table 4.
Does the LPC12D27FBD100/301 support in-system programming (ISP)?
Yes, the LPC12D27FBD100/301 supports In-System Programming via its on-chip bootloader using UART0 or USB (when enabled through external PHY). ISP allows firmware updates without removing the device from the PCB. This capability is implemented in the LPC1227 MCU core and documented in the LPC122x datasheet referenced in the LPC12D27FBD100/301 product data sheet.
Can the LPC12D27FBD100/301 drive a 160-segment display?
No - the LPC12D27FBD100/301's integrated PCF8576D supports only up to 40 segments × 4 backplanes (160 total outputs), but physical pin count limits segment outputs to S0–S39 (40 pins). To drive larger displays, multiple LPC12D27FBD100/301 units or external cascaded PCF8576D ICs are required. The LPC12D27FBD100/301 itself cannot exceed 40 active segment drivers.
What is the function of the SYNC pin on the LPC12D27FBD100/301?
The SYNC pin (Pin 37) provides cascade synchronization between multiple PCF8576D LCD controllers. When multiple LPC12D27FBD100/301 units or standalone PCF8576Ds are used in one system, SYNC ensures frame timing alignment across all display segments - preventing visual tearing or flicker. It operates as both input and output depending on master/slave configuration, as specified in Section 7.2.6 of the LPC12D27FBD100/301 datasheet.
Is the LPC12D27FBD100/301 RoHS compliant and lead-free?
Yes, the LPC12D27FBD100/301 is manufactured in accordance with RoHS Directive 2011/65/EU and is lead-free. Its LQFP100 package (SOT407-1) uses matte tin lead finish, and compliance is verified per NXP's official product change notices and material declarations. Full environmental compliance documentation for LPC12D27FBD100/301 is available on NXP's website under "Product Environmental Information."
LPC12D27FBD100/301 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 100-LQFP
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit
- Speed:
- 45MHz
- Connectivity:
- I2C, IrDA, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, POR, WDT
- Number of I/O:
- 40
- 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:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC12D27FBD100/301 FAQ
1.How can I place an order for LPC12D27FBD100/301 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC12D27FBD100/301 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 LPC12D27FBD100/301 reliable?
The price and inventory of LPC12D27FBD100/301 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC12D27FBD100/301 is usually 5 days.
3.What payment methods are accepted for LPC12D27FBD100/301?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC12D27FBD100/301 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC12D27FBD100/301?
LPC12D27FBD100/301 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC12D27FBD100/301 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 LPC12D27FBD100/301?
For technical support, including LPC12D27FBD100/301 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC12D27FBD100/301 requirements.
6.How does Aetrix verify that LPC12D27FBD100/301 is sourced from the original manufacturer or authorized distributors?
All LPC12D27FBD100/301 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 LPC12D27FBD100/301 meets industry standards.
7.What is the process for return or replacement of LPC12D27FBD100/301?
All LPC12D27FBD100/301 units undergo pre-shipment inspection (PSI). If there is an issue with LPC12D27FBD100/301, 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 LPC12D27FBD100/301 part is unused and in its original packaging.
Return procedure for LPC12D27FBD100/301:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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