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NXP Semiconductors LPC11A12FHN33/101,
- Part No.:
- LPC11A12FHN33/101,
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-VQFN Exposed Pad
- Datasheet:
-
LPC11A12FHN33/101,.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 32HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:230
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Product details
Overview
LPC11A12FHN33/101 from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller in HVQFN33 (7 × 7 mm) package, operating up to 50 MHz with 16 kB flash, 4 kB SRAM, and 1 kB EEPROM. It integrates a 10-bit ADC (8 channels), 10-bit DAC, analog comparator, temperature sensor, and UART/SSP/I²C interfaces - deployed in industrial control, remote monitoring, and precision instrumentation.
For engineers reviewing the LPC11A12FHN33/101 datasheet, LPC11A12FHN33/101 pinout, LPC11A12FHN33/101 application, or LPC11A12FHN33/101 equivalent, key selection factors include its 28 GPIO count, 50 ns glitch-filtered I²C pins (PIO0_2/PIO0_3), high-current sink capability (20 mA on PIO0_2/PIO0_3), SWD debug interface, and support for RS-485/USART with fractional baud rate generation.
Technical Context
The LPC11A12FHN33/101 implements an ARM Cortex-M0 core with NVIC and system tick timer, paired with a configurable clock system featuring 12 MHz ±1% IRC, crystal oscillator (1–25 MHz), PLL, and low-power LFOsc. Its memory subsystem includes boot ROM (16 kB), flash (16 kB), SRAM (4 kB), and EEPROM (1 kB) with byte-level erasability.
Analog/mixed-signal resources are software-configurable: the 10-bit ADC supports 8-channel multiplexing with programmable triggers (ATRG0/ATRG1), the 10-bit DAC provides flexible conversion timing, and the analog comparator includes a programmable reference (VDDCMP) and five input options (ACMP_I1–I5).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 32-bit RISC, up to 50 MHz operation - enables deterministic real-time control with Thumb-2 instruction set and low code footprint vs. 8/16-bit MCUs. |
| Memory | 16 kB flash (in-system programmable), 4 kB SRAM, 1 kB EEPROM (byte-erasable) - supports firmware updates and non-volatile data logging without external storage. |
| Analog Peripherals | 10-bit ADC (8 inputs), 10-bit DAC (AOUT), analog comparator (5 inputs, programmable VDDCMP reference), integrated temperature sensor - enables closed-loop analog sensing and actuation in compact systems. |
| Digital Interfaces | 1× USART (RS-485/EIA-485 mode, fractional baud), 2× SSP (SPI/SSI), 1× I²C-bus (Fast-mode Plus, 1 Mbit/s) - supports industrial fieldbus, sensor networks, and multi-protocol peripheral expansion. |
| GPIO & Timing | 28 GPIO pins (HVQFN33 package), 4× general-purpose timers (16-/32-bit), programmable Windowed Watchdog Timer (WWDT) - delivers scalable I/O and precise event timing for motor control and state machines. |
| Power & Environment | Single 3.3 V supply (2.6–3.6 V), −40 °C to +85 °C operating range, UnderVoltage LockOut (UVLO) at 2.4 V - ensures robust operation in industrial power environments. |
Pinout & Package
HVQFN33 (7 × 7 × 0.85 mm) package with 33 terminals, thermal pad exposed on underside for enhanced heat dissipation in space-constrained industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET/PIO0_0 | Reset input / GPIO | Active-low reset with fixed 20 ns glitch filter; also serves as general-purpose I/O with internal pull-up enabled at reset. |
| TCK/SWCLK/PIO0_5 | JTAG/SWD clock | Primary Serial Wire Debug clock input (10 ns glitch filter); shared with GPIO and SCK0 for SSP0 - enables in-circuit debugging without dedicated debug header. |
| SWDIO/PIO0_10 | SWD bidirectional data | Primary Serial Wire Debug I/O (10 ns glitch filter); supports full debug access using only two pins (SWCLK + SWDIO), reducing PCB footprint. |
| PIO0_2/SCL | I²C clock / GPIO | True open-drain I²C-bus clock with 50 ns glitch filter; high-current sink (20 mA) capability allows direct LED driving or level-shifting without external components. |
| PIO0_3/SDA | I²C data / GPIO | True open-drain I²C-bus data line with 50 ns glitch filter; shares pin with SWDIO - supports dual-role use in resource-constrained designs. |
| VDD(3V3) | Main power supply | 3.3 V core and I/O supply pin (terminal 29); requires local 100 nF decoupling for stable operation across 2.6–3.6 V input range. |
| VSS | Ground | Digital ground reference (terminal 33); must be connected to system ground plane with low-impedance path to minimize noise coupling into analog peripherals. |
Key Features
| Feature | Design Value |
|---|---|
| ARM Cortex-M0 + NVIC | Hardware-based interrupt prioritization and vectoring reduces latency for time-critical events like ADC conversions or fault detection. |
| In-Application Programming (IAP) | Enables firmware updates and EEPROM writes during runtime without halting CPU execution - critical for over-the-air (OTA) updates in remote devices. |
| Programmable Glitch Filters | Configurable 10 ns or 50 ns digital input filters on 16 GPIO pins - eliminates contact bounce or EMI-induced false triggers in industrial switch inputs. |
| Integrated Temperature Sensor | On-die thermal measurement with factory calibration - provides system-level thermal monitoring without external sensors or calibration overhead. |
| ROM-Based Drivers | Pre-integrated 32-bit integer division and I²C-bus driver routines reduce flash usage and accelerate development of communication stacks. |
Applications
| Industrial Control | Remote Monitoring |
|---|---|
Use Scenario: Programmable logic controller (PLC) I/O module managing discrete inputs, analog sensor readings, and relay outputs in factory automation. IC Role / Device Role / Timing Role: Central controller executing ladder logic, sampling 8-channel 10-bit ADC at 100 kSPS, driving relays via 20 mA sink GPIOs (PIO0_2/PIO0_3), and communicating via RS-485 USART. Use Value: Integrated EEPROM stores configuration parameters across power cycles; WWDT prevents lockup during field deployment; 50 MHz CPU handles multiple concurrent tasks with deterministic response. | Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and air quality in HVAC ducts or smart buildings. IC Role / Device Role / Timing Role: Low-power host MCU acquiring data from analog sensors (ADC/DAC/comparator), processing locally, and transmitting via I²C to wireless transceiver. Use Value: Single 3.3 V supply simplifies power design; integrated temperature sensor enables self-compensation; ARM Sleep mode extends battery life between wake-ups triggered by RTC or external interrupt. |
| Precision Instrumentation | Medical Instrumentation |
Use Scenario: Portable multimeter or data logger requiring accurate analog front-end control, calibration storage, and USB-to-serial bridge functionality. IC Role / Device Role / Timing Role: Signal acquisition controller interfacing 10-bit ADC/DAC, storing calibration coefficients in 1 kB EEPROM, and formatting data for transmission via USART with RS-485 support. Use Value: Byte-erasable EEPROM allows field recalibration without full flash erase; 10-bit DAC enables precise reference voltage generation; fractional baud rate supports legacy PC COM port compatibility. | Use Scenario: Patient vital sign monitor (e.g., pulse oximeter) acquiring analog signals, performing basic filtering, and displaying results on local LCD. IC Role / Device Role / Timing Role: Real-time signal processor sampling photodiode inputs via ADC, triggering DAC for LED drive control, and managing display interface through GPIO bit-banging or SSP. Use Value: −40 °C to +85 °C rating ensures reliability in clinical environments; UVLO protection prevents erratic behavior during battery voltage sag; analog comparator enables fast threshold detection for alarm generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC11A11FHN33/001 | 8 kB flash, 2 kB SRAM, 512 B EEPROM, same HVQFN33 package and peripheral set. | Suitable for simpler control tasks with smaller firmware footprint and less data logging requirement. | Select when application code size remains under 8 kB and EEPROM storage needs are ≤512 B - reduces cost without sacrificing pin compatibility or debug interface. |
| LPC11A14FHN33/301 | 32 kB flash, 8 kB SRAM, 4 kB EEPROM, identical package and peripheral feature set. | Required for complex firmware with RTOS, protocol stacks, or extensive data buffering. | Choose when future firmware expansion, OTA updates, or larger sensor fusion algorithms demand headroom beyond 16 kB flash and 4 kB EEPROM. |
Compared with LPC11A11FHN33/001, the LPC11A12FHN33/101 doubles flash and EEPROM capacity while maintaining identical timing, I/O, and debug capabilities; versus LPC11A14FHN33/301, it offers optimal balance of cost and resources for mid-complexity embedded control without over-provisioning memory.
Availability
LPC11A12FHN33/101 is available at Aetrix Electronics and suitable for industrial control, remote monitoring, and precision instrumentation requiring stable component supply and long-term manufacturability.
Supply support for LPC11A12FHN33/101 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 leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The LPC11Axx product line targets cost-sensitive, low-power 32-bit embedded control applications - delivering ARM Cortex-M0 performance with integrated analog peripherals and robust industrial-grade packaging.
FAQ
What is the maximum operating frequency of the LPC11A12FHN33/101?
The LPC11A12FHN33/101 operates at a maximum CPU frequency of 50 MHz, achievable using the internal 12 MHz ±1% IRC oscillator with PLL multiplication, or directly from an external crystal (1–25 MHz) or clock source. This frequency enables real-time processing of sensor data and communication protocols while maintaining low power consumption in active mode.
Does the LPC11A12FHN33/101 support in-system programming (ISP)?
Yes, the LPC11A12FHN33/101 supports In-System Programming (ISP) for flash memory via its built-in bootloader, accessible through USART using a simple serial command sequence. This allows field firmware updates without requiring a dedicated programmer - a key capability for deployed industrial and remote monitoring systems using the LPC11A12FHN33/101.
How many analog-to-digital converter (ADC) input channels does the LPC11A12FHN33/101 have?
The LPC11A12FHN33/101 features a 10-bit ADC with multiplexing across 8 input pins (AD0–AD7), mapped to GPIOs PIO0_6 through PIO0_15. These channels support programmable conversion triggers (ATRG0/ATRG1) and are usable simultaneously with other peripherals - enabling multi-sensor acquisition in applications such as environmental monitoring or industrial process control using the LPC11A12FHN33/101.
What debug interface does the LPC11A12FHN33/101 provide?
The LPC11A12FHN33/101 provides Serial Wire Debug (SWD) as the primary debug interface, using SWDIO (PIO0_10) and SWCLK (PIO0_5) pins, plus optional JTAG support (TRST/TCK/TMS/TDO/TDI). SWD enables full debug access - including breakpoints, register inspection, and flash programming - with only two pins, reducing PCB routing complexity for compact designs using the LPC11A12FHN33/101.
Is the LPC11A12FHN33/101 pin-compatible with other members of the LPC11Axx family in HVQFN33 package?
Yes, the LPC11A12FHN33/101 is pin-compatible with LPC11A11FHN33/001, LPC11A13FHI33/201, and LPC11A14FHN33/301 in the HVQFN33 package - sharing identical pin count, mechanical footprint, and signal mapping. This allows hardware reuse across variants differing only in memory size and feature enablement, simplifying design scalability for projects using the LPC11A12FHN33/101.
LPC11A12FHN33/101, Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-VQFN Exposed Pad
- Series:
- LPC11Axx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- I2C, Microwire, SPI, SSI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, WDT
- Number of I/O:
- 28
- 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; D/A 1x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC11A12FHN33/101, FAQ
1.How can I place an order for LPC11A12FHN33/101, through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC11A12FHN33/101, 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 LPC11A12FHN33/101, reliable?
The price and inventory of LPC11A12FHN33/101, are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC11A12FHN33/101, is usually 5 days.
3.What payment methods are accepted for LPC11A12FHN33/101,?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC11A12FHN33/101, transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC11A12FHN33/101,?
LPC11A12FHN33/101, orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC11A12FHN33/101, 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 LPC11A12FHN33/101,?
For technical support, including LPC11A12FHN33/101, datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC11A12FHN33/101, requirements.
6.How does Aetrix verify that LPC11A12FHN33/101, is sourced from the original manufacturer or authorized distributors?
All LPC11A12FHN33/101, 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 LPC11A12FHN33/101, meets industry standards.
7.What is the process for return or replacement of LPC11A12FHN33/101,?
All LPC11A12FHN33/101, units undergo pre-shipment inspection (PSI). If there is an issue with LPC11A12FHN33/101,, 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 LPC11A12FHN33/101, part is unused and in its original packaging.
Return procedure for LPC11A12FHN33/101,:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPC11A12FHN33/101, Tags
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