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NXP Semiconductors LPC1311FHN33,551
- Part No.:
- LPC1311FHN33,551
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-VQFN Exposed Pad
- Datasheet:
-
LPC1311FHN33,551.pdf
- Description:
- IC MCU 32BIT 8KB FLASH 32HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:260
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Product details
Overview
LPC1311FHN33,551 from NXP Semiconductors is a 32-bit ARM Cortex-M3 microcontroller in a 33-pin HVQFN package, operating at up to 72 MHz with 8 kB flash, 4 kB SRAM, and integrated I²C-bus (Fast-mode Plus), UART, four timers, and 10-bit ADC. It targets low-power embedded control in metering, lighting, and alarm systems.
For engineers reviewing the LPC1311FHN33,551 datasheet, LPC1311FHN33,551 pinout, LPC1311FHN33,551 application, or LPC1311FHN33,551 equivalent, key selection criteria include its 33-pin HVQFN thermal profile, absence of USB interface, support for Deep-sleep/Deep power-down modes, and compatibility with ISP/IAP firmware updates via UART.
Technical Context
The LPC1311FHN33,551 implements the ARM Cortex-M3 core with Harvard architecture, 3-stage pipeline, and internal prefetch unit enabling speculative branching. Its peripheral set includes one Fast-mode Plus I²C-bus (1 Mbit/s), one UART with RS-485 support, four general-purpose timers (including 32-bit and 16-bit variants), and an 8-channel 10-bit ADC.
Power management is handled by an integrated PMU supporting Sleep, Deep-sleep, and Deep power-down modes. The device uses a single 2.0–3.6 V supply and features a programmable brownout detector with four forced-reset thresholds - confirmed only for LPC1311/01 variants, not standard LPC1311FHN33,551.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 72 MHz max - enables real-time deterministic execution with NVIC interrupt handling. |
| Flash Memory | 8 kB - sufficient for compact firmware with bootloader and basic protocol stacks. |
| SRAM | 4 kB - supports moderate variable allocation and stack depth for embedded control tasks. |
| I²C Interface | Fast-mode Plus (1 Mbit/s) - allows high-speed sensor/EEPROM communication without external level shifters. |
| ADC | 10-bit, 8-channel - provides sufficient resolution for analog sensing in white goods and metering. |
| Package | HVQFN33 (7 × 7 × 0.85 mm) - thermally enhanced, space-efficient footprint for compact PCB layouts. |
| Supply Voltage | 2.0–3.6 V - compatible with common Li-ion, coin-cell, and regulated 3.3 V rails. |
Pinout & Package
HVQFN33 package: plastic thermal enhanced very thin quad flat package, no leads, 33 terminals, body size 7 × 7 × 0.85 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET/PIO0_0 | Reset input / GPIO | Active-low reset with 20 ns glitch filter; dual-function pin usable as digital I/O after boot. |
| PIO0_4/SCL | I²C clock | Open-drain I²C-bus clock line with Fast-mode Plus sink capability when configured. |
| PIO0_5/SDA | I²C data | Open-drain I²C-bus data line, supports multi-master arbitration and 1 Mbit/s operation. |
| PIO1_6/RXD | UART receive | Dedicated UART input with internal FIFO and RS-485 polarity control support. |
| PIO1_7/TXD | UART transmit | UART output with fractional baud rate generation for precise timing across wide frequency ranges. |
| R/PIO0_11/AD0 | ADC input 0 | Analog input channel with dedicated 10-bit conversion path; digital I/O disabled when used as ADC. |
| SWDIO/PIO1_3/AD4 | Debug I/O / ADC | Shared debug interface and analog input - requires functional mode selection during initialization. |
| VDD | Power supply | Primary 2.0–3.6 V supply for core, peripherals, and ADC reference voltage. |
| VSS | Ground | System ground reference; pin 33 is designated VSS in HVQFN33 layout. |
Key Features
| Feature | Design Value |
|---|---|
| In-System Programming (ISP) | Enables firmware updates over UART without external programmer, reducing production test overhead. |
| Serial Wire Debug (SWD) | Two-pin debug interface (SWCLK/SWDIO) minimizes PCB routing complexity versus JTAG. |
| Programmable Watchdog Timer (WDT) | Independent timing safety mechanism with configurable timeout, critical for fail-safe embedded operation. |
| High-current GPIO drivers | 20 mA sink on I²C pins in Fast-mode Plus mode eliminates need for external pull-up current boosting. |
| Configurable power modes | Three reduced-power states (Sleep, Deep-sleep, Deep power-down) enable µA-level standby current in battery applications. |
Applications
| eMetering | Lighting Control |
|---|---|
Use Scenario: Smart electricity meter with tariff switching, pulse counting, and tamper detection. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, display interface, and secure communication. Use Value: 10-bit ADC with 8 channels enables simultaneous voltage/current/temperature monitoring; low-power modes extend battery life in portable meters. | Use Scenario: Dimmable LED driver with DALI or 0–10 V analog control in commercial fixtures. IC Role / Device Role / Timing Role: System manager coordinating PWM dimming, thermal protection, and status reporting. Use Value: Four independent timers support precise PWM generation and fault-response timing; UART with RS-485 enables robust bus communication. |
| Alarm Systems | White Goods |
Use Scenario: Wireless security panel with PIR sensor inputs, siren control, and keypad scanning. IC Role / Device Role / Timing Role: Central logic unit processing sensor interrupts, driving audio alerts, and managing sleep/wake cycles. Use Value: GPIO pins support edge/level-sensitive wake-up from Deep-sleep; 33-pin HVQFN fits compact enclosure designs. | Use Scenario: Washing machine main control board managing motor drive, water valves, and user interface. IC Role / Device Role / Timing Role: Real-time coordinator of appliance subsystems using timer-based sequencing and ADC feedback. Use Value: Integrated PMU reduces standby power consumption; I²C Fast-mode Plus interfaces efficiently with display and sensor ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1313FHN33 | 32 kB flash, 8 kB SRAM, same package and peripheral set - no USB or WWDT. | Supports larger firmware images and more complex protocols without changing PCB layout. | Select when firmware growth exceeds 8 kB or additional RAM is needed for buffering or RTOS use. |
| LPC1342FHN33 | 16 kB flash, 4 kB SRAM, adds USB 2.0 full-speed device controller with on-chip PHY. | Enables direct USB connectivity for configuration, firmware update, or HID-class peripherals. | Choose when USB device functionality is required and flash budget permits 16 kB usage. |
Compared with LPC1311FHN33,551, LPC1313FHN33 offers scalable memory while retaining identical pinout and power profile; LPC1342FHN33 trades flash capacity for integrated USB, requiring different firmware architecture but no hardware redesign.
Availability
LPC1311FHN33,551 is available at Aetrix Electronics and suitable for eMetering, lighting control, and alarm systems requiring stable component supply, long-term industrial availability, and consistent parametric performance across temperature and voltage ranges.
Supply support for LPC1311FHN33,551 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 LPC1300 series was designed for cost-sensitive, low-power embedded control applications where compact code size, efficient interrupt handling, and minimal external components are critical - exemplified by the LPC1311FHN33,551's optimized 8 kB flash footprint and HVQFN33 thermal profile.
FAQ
Does the LPC1311FHN33,551 support USB functionality?
No, the LPC1311FHN33,551 does not include a USB controller or PHY. USB capability is exclusive to LPC1342/43 variants per the official NXP datasheet. The LPC1311FHN33,551 relies on UART, I²C, and SSP for serial communication. Firmware updates must use ISP over UART, and host connectivity requires external USB-to-UART bridge ICs.
What is the maximum operating frequency of the LPC1311FHN33,551?
The LPC1311FHN33,551 operates at a maximum CPU frequency of 72 MHz, achieved via its internal PLL driven by either the system oscillator (1–25 MHz crystal) or the 12 MHz internal RC oscillator trimmed to ±1 % accuracy. This frequency is fully supported across the specified 2.0–3.6 V supply range and industrial temperature grade.
How many ADC channels does the LPC1311FHN33,551 provide, and what is their resolution?
The LPC1311FHN33,551 integrates a single 10-bit successive-approximation ADC with input multiplexing across eight pins (AD0–AD7). Each channel supports programmable sampling time and conversion triggers via timers or software, delivering 10-bit precision for analog sensing in metering and appliance control applications.
Is the LPC1311FHN33,551 pin-compatible with other members of the LPC1300 family in HVQFN33 packaging?
Yes, the LPC1311FHN33,551 shares identical pinout and package dimensions with LPC1313FHN33, LPC1342FHN33, and LPC1343FHN33 in the HVQFN33 variant. All share the same 33-pin mapping, power/ground locations, and peripheral pin assignments - enabling drop-in replacement for memory or feature upgrades without PCB revision.
What debug interface does the LPC1311FHN33,551 support, and how many pins are required?
The LPC1311FHN33,551 supports Serial Wire Debug (SWD) using two dedicated pins: SWDIO (PIO1_3) and SWCLK (PIO0_10). This two-pin interface replaces traditional JTAG, reducing debug footprint and simplifying PCB layout while maintaining full read/write memory access, breakpoint setting, and real-time variable inspection capabilities.
LPC1311FHN33,551 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-VQFN Exposed Pad
- Series:
- LPC13xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 72MHz
- Connectivity:
- I2C, Microwire, SPI, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, WDT
- Number of I/O:
- 28
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 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:
LPC1311FHN33,551 FAQ
1.How can I place an order for LPC1311FHN33,551 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1311FHN33,551 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 LPC1311FHN33,551 reliable?
The price and inventory of LPC1311FHN33,551 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1311FHN33,551 is usually 5 days.
3.What payment methods are accepted for LPC1311FHN33,551?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1311FHN33,551 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1311FHN33,551?
LPC1311FHN33,551 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1311FHN33,551 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 LPC1311FHN33,551?
For technical support, including LPC1311FHN33,551 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1311FHN33,551 requirements.
6.How does Aetrix verify that LPC1311FHN33,551 is sourced from the original manufacturer or authorized distributors?
All LPC1311FHN33,551 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 LPC1311FHN33,551 meets industry standards.
7.What is the process for return or replacement of LPC1311FHN33,551?
All LPC1311FHN33,551 units undergo pre-shipment inspection (PSI). If there is an issue with LPC1311FHN33,551, 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 LPC1311FHN33,551 part is unused and in its original packaging.
Return procedure for LPC1311FHN33,551:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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