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NXP Semiconductors LPC11A12FBD48/101,
- Part No.:
- LPC11A12FBD48/101,
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
LPC11A12FBD48/101,.pdf
- Description:
- LPC11A12 - Cortex-M0+/M0 RISC Mi
- Quantity:
- Payment:
- Shipping:
Inventory:207
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Product details
Overview
LPC11A12FBD48/101 from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller operating at up to 50 MHz, featuring 16 kB flash, 4 kB EEPROM, 4 kB SRAM, 10-bit ADC with 8 channels, 10-bit DAC, analog comparator, temperature sensor, and 42 GPIO pins in LQFP48 package - deployed in industrial control, remote monitoring, and precision instrumentation.
For engineers reviewing the LPC11A12FBD48/101 datasheet, LPC11A12FBD48/101 pinout, LPC11A12FBD48/101 application, or LPC11A12FBD48/101 equivalent, key selection considerations include its 42 GPIO count, dual SSP controllers supporting 25 Mbit/s, Fast-mode Plus I²C (1 Mbit/s), RS-485-capable USART, and integrated analog subsystem with programmable glitch filtering on 16 pins.
Technical Context
The LPC11A12FBD48/101 implements an ARM Cortex-M0 core with NVIC, SWD debug interface, and system tick timer, executing from on-chip flash with boot ROM support for ISP/IAP and integer division routines. Its clock system integrates a 1–25 MHz crystal oscillator, 12 MHz ±1% IRC, low-frequency oscillator, and PLL enabling full-speed operation from multiple sources.
Analog/mixed-signal functionality is software-configurable: the 10-bit ADC supports multiplexed inputs across 8 pins with flexible trigger options; the 10-bit DAC provides analog output via PIO0_4; the analog comparator includes programmable reference and five input channels; UVLO protection activates below 2.4 V, and BOD offers dual programmable thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 32-bit RISC, up to 50 MHz - enables deterministic real-time control with Thumb-2 instruction set and low code footprint vs 8/16-bit MCUs. |
| Memory | 16 kB flash / 4 kB EEPROM / 4 kB SRAM - EEPROM supports byte-erasable, byte-programmable nonvolatile data storage without external components. |
| Analog Peripherals | 10-bit ADC (8-channel), 10-bit DAC (single output), analog comparator (5 inputs, programmable reference) - enables closed-loop sensing and actuation in compact embedded systems. |
| Digital Interfaces | 1× USART (RS-485/EIA-485 mode), 2× SSP (SPI/SSI), 1× Fast-mode Plus I²C (1 Mbit/s) - supports industrial bus protocols and multi-device daisy-chaining with hardware FIFOs. |
| GPIO & Timing | 42 general-purpose I/O pins with configurable pull-up/down, repeater/open-drain modes; four timers (two 16-bit, two 32-bit) with 16 capture and 14 match outputs - delivers flexible peripheral control and precise event timing. |
| Power & Environment | Single 3.3 V supply (2.6–3.6 V), −40 °C to +85 °C operating range, UnderVoltage LockOut (2.4 V threshold), Brown-Out Detect - ensures robust operation in industrial power environments. |
Pinout & Package
LPC11A12FBD48/101 is housed in a plastic LQFP48 package (7 × 7 × 1.4 mm, SOT313-2), with 48 leads including 42 GPIO, power/ground, debug, clock, and analog I/O terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET/PIO0_0 (Pin 3) | Reset input / GPIO | Active-low external reset with fixed 20 ns glitch filter; also serves as general-purpose I/O with internal pull-up enabled after reset. |
| TCK/SWCLK/PIO0_5 (Pin 29) | Debug clock / GPIO | Primary Serial Wire Debug clock input (10 ns glitch filter); multiplexed with GPIO and SSP0/SCK0 functions. |
| SWDIO/PIO0_10 (Pin 38) | Debug I/O / GPIO | Primary Serial Wire Debug bidirectional data line (10 ns glitch filter); also supports ADC input AD4 and USART RTS output. |
| AD0–AD7 (Pins 32,33,34,35,38,39,30,41) | ADC inputs | Eight dedicated analog input channels mapped to GPIO pins; all support 10-bit conversion with software-selectable reference and trigger sources. |
| AOUT/PIO0_4 (Pin 28) | DAC output | Analog voltage output (0–VDD) from 10-bit DAC; used for precision waveform generation or analog setpoint control without external DAC IC. |
| VDD(3V3) (Pin 44), VSS (Pin 42), VDD(IO) (Pin 8), VSS(IO) (Pin 5) | Power & ground | Dual-supply architecture separates core logic (VDD/VSS) from I/O (VDD(IO)/VSS(IO)) - reduces noise coupling and improves analog measurement accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| ARM Cortex-M0 + NVIC | Low-latency interrupt handling with 32 priority levels enables responsive real-time control in resource-constrained applications. |
| In-Application Programming (IAP) | Allows firmware updates and EEPROM writes during runtime without halting CPU execution - critical for field-upgradable industrial devices. |
| Programmable GPIO glitch filters | 16 pins support 10 ns or 50 ns digital input filtering - eliminates contact bounce or EMI-induced false triggers in noisy factory environments. |
| Integrated analog subsystem | Combines ADC, DAC, comparator, temperature sensor, and internal voltage reference - eliminates need for discrete analog signal chain components. |
| High-current GPIO drivers | PIO0_21 supports 20 mA source drive; PIO0_2/PIO0_3 support 20 mA sink in true open-drain mode - directly drives LEDs, relays, or optocouplers without external buffers. |
Applications
| Industrial Control | Remote Monitoring |
|---|---|
Use Scenario: Programmable logic controller (PLC) I/O module managing sensors, actuators, and HMI communication in factory automation. IC Role / Device Role / Timing Role: Central MCU executing ladder logic, sampling analog sensors via 10-bit ADC, driving digital outputs, and communicating over RS-485 using the USART. Use Value: Integrated 42 GPIO, dual SSP, and RS-485 USART reduce BOM cost and board space versus discrete interface solutions. | Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and air quality in distributed infrastructure. IC Role / Device Role / Timing Role: Low-power host MCU acquiring data from analog sensors (via ADC), conditioning signals (using comparator), and transmitting via UART or SPI to gateway. Use Value: Single 3.3 V supply, −40 °C to +85 °C rating, and integrated temperature sensor enable reliable deployment in uncontrolled outdoor enclosures. |
| Precision Instrumentation | Fire and Security Systems |
Use Scenario: Portable multimeter or calibration tool requiring accurate analog front-end and human-readable display interface. IC Role / Device Role / Timing Role: Signal acquisition MCU using 10-bit ADC/DAC and analog comparator to measure, generate test waveforms, and validate sensor outputs. Use Value: On-chip 10-bit DAC (AOUT) and programmable comparator reference eliminate external DAC and op-amp circuits, reducing calibration complexity. | Use Scenario: Fire alarm control panel interfacing smoke detectors, sirens, and communication modules in commercial buildings. IC Role / Device Role / Timing Role: Safety-critical controller monitoring analog detector signals (ADC), triggering audible/visual alarms (GPIO), and reporting status via RS-485 network. Use Value: UnderVoltage LockOut (2.4 V) and Brown-Out Detect ensure fail-safe shutdown during power anomalies - meeting EN54 compliance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC11A14FBD48/301 | 32 kB flash, 8 kB SRAM, 4 kB EEPROM - double flash/SRAM vs LPC11A12FBD48/101. | Supports larger firmware images and complex protocol stacks (e.g., Modbus TCP offload). | Select when firmware size exceeds 16 kB or additional RAM is required for buffering or RTOS tasks. |
| LPC11U12FBD48/101 | Same package and memory (16 kB flash/4 kB EEPROM), but adds USB 2.0 device controller and enhanced debug features. | Enables direct PC connectivity and firmware updates via USB - not supported by LPC11A12FBD48/101. | Choose when USB interface is mandatory; otherwise, LPC11A12FBD48/101 offers lower cost and identical analog/digital peripheral set. |
Compared with LPC11A12FBD48/101, the LPC11A14FBD48/301 provides scalable memory for future firmware growth, while the LPC11U12FBD48/101 adds USB connectivity at the expense of higher unit cost and no analog feature advantage - making LPC11A12FBD48/101 optimal for cost-sensitive, RS-485/industrial analog applications.
Availability
LPC11A12FBD48/101 is available at Aetrix Electronics and suitable for industrial control, remote monitoring, and fire and security systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for LPC11A12FBD48/101 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 LPC11Axx product line targets cost-sensitive, low-power embedded applications requiring integrated analog peripherals and industrial communication interfaces - designed to replace legacy 8/16-bit MCUs with ARM-based efficiency and scalability.
FAQ
What is the maximum operating frequency of the LPC11A12FBD48/101?
The LPC11A12FBD48/101 operates at a maximum CPU frequency of 50 MHz, achievable via its integrated PLL using the internal 12 MHz IRC, external crystal (1–25 MHz), or external clock source. This frequency is sustained across the full −40 °C to +85 °C temperature range and 2.6–3.6 V supply voltage, ensuring deterministic real-time performance in industrial environments.
Does the LPC11A12FBD48/101 support in-system programming (ISP)?
Yes, the LPC11A12FBD48/101 supports In-System Programming (ISP) for flash memory and In-Application Programming (IAP) for both flash and EEPROM via its on-chip bootloader. ISP is initiated by asserting a LOW on PIO0_1 during reset, enabling firmware updates without external programmers - a key capability for field-deployed LPC11A12FBD48/101 units.
How many analog-to-digital converter (ADC) channels does the LPC11A12FBD48/101 provide?
The LPC11A12FBD48/101 integrates a 10-bit ADC with eight input channels (AD0–AD7), each mapped to specific GPIO pins (e.g., AD0 on PIO0_6, AD7 on PIO0_15). These channels support software-triggered or timer-triggered conversions, with selectable reference voltage and configurable sample rates - delivering sufficient resolution for sensor interfacing in LPC11A12FBD48/101-based designs.
What debug interfaces are available on the LPC11A12FBD48/101?
The LPC11A12FBD48/101 provides Serial Wire Debug (SWD) as the primary debug interface, using SWDIO (Pin 38) and SWCLK (Pin 29), plus full JTAG boundary scan support (TRST, TCK, TMS, TDI, TDO). SWD requires only two pins and is fully compatible with standard ARM debug tools, making LPC11A12FBD48/101 straightforward to integrate into existing development workflows.
Is the LPC11A12FBD48/101 pin-compatible with other members of the LPC11Axx family in LQFP48 package?
Yes, the LPC11A12FBD48/101 shares identical pinout and package (LQFP48, SOT313-2) with LPC11A14FBD48/301 and LPC11A04UK-derived LQFP variants, enabling direct PCB reuse across memory-graded versions. All LQFP48-packaged LPC11Axx devices maintain consistent signal mapping for GPIO, analog, debug, and peripheral pins - simplifying design migration and inventory consolidation for LPC11A12FBD48/101 users.
LPC11A12FBD48/101, Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- LPC11Axx
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit
- Speed:
- 50MHz
- Connectivity:
- I2C, Microwire, SPI, SSI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, WDT
- Number of I/O:
- 42
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.6V ~ 3.6V
- Data Converters:
- A/D 8x10b SAR; D/A 1x10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC11A12FBD48/101, FAQ
1.How can I place an order for LPC11A12FBD48/101, through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC11A12FBD48/101, 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 LPC11A12FBD48/101, reliable?
The price and inventory of LPC11A12FBD48/101, are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC11A12FBD48/101, is usually 5 days.
3.What payment methods are accepted for LPC11A12FBD48/101,?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC11A12FBD48/101, transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC11A12FBD48/101,?
LPC11A12FBD48/101, orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC11A12FBD48/101, 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 LPC11A12FBD48/101,?
For technical support, including LPC11A12FBD48/101, datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC11A12FBD48/101, requirements.
6.How does Aetrix verify that LPC11A12FBD48/101, is sourced from the original manufacturer or authorized distributors?
All LPC11A12FBD48/101, 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 LPC11A12FBD48/101, meets industry standards.
7.What is the process for return or replacement of LPC11A12FBD48/101,?
All LPC11A12FBD48/101, units undergo pre-shipment inspection (PSI). If there is an issue with LPC11A12FBD48/101,, 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 LPC11A12FBD48/101, part is unused and in its original packaging.
Return procedure for LPC11A12FBD48/101,:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPC11A12FBD48/101, Tags
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ATTINY4-TSHR
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ATTINY402-SSNR
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PIC16F15213T-I/MF
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PIC16F15213-E/MF
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PIC10F200T-I/OT
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ATTINY412-SSNR
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PIC10F202T-I/OT
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ATTINY404-SSNR
Microchip Technology
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