LQFP Microcontrollers (MCU)
Last Updated: April 1, 2025
Description
LQFP (Low-profile Quad Flat Package) Microcontrollers are integrated circuits that house a microcontroller unit within a flat, square package with leads extending from all four sides. These microcontrollers are designed to perform a wide range of tasks by integrating a processor, memory, and input/output peripherals on a single chip. They are commonly used in various electronic devices to control functions and processes.
Working Principle
LQFP Microcontrollers operate by executing programmed instructions stored in their memory. They integrate a central processing unit (CPU), memory (such as Flash or RAM), and various peripherals like timers, communication interfaces, and analog-to-digital converters. The microcontroller processes input data, executes the programmed instructions, and outputs the results to control external devices or systems. Their compact design and integration of multiple functions on a single chip make them highly efficient for embedded systems, reducing the need for additional components and simplifying circuit design.
Applications
LQFP Microcontrollers are used in a wide array of applications. They are found in household appliances like washing machines and dishwashers, where they control motor functions and user interfaces. In the automotive industry, they are used in systems such as engine control units and infotainment systems. Additionally, they are employed in consumer electronics like mobile phones and digital cameras, where they manage various device operations and user interactions.
Advantages over other Microcontrollers
LQFP Microcontrollers offer several advantages over other types of microcontrollers. Their low-profile design allows for efficient use of space on printed circuit boards, making them ideal for compact devices. They often include advanced features such as floating-point units and onboard debugging capabilities, which enhance their performance and ease of development. The integration of multiple peripherals on a single chip reduces the need for additional components, lowering overall system costs and complexity.
Limitations
One limitation of LQFP Microcontrollers is their susceptibility to damage from physical stress due to their exposed leads, which can be bent or broken if not handled carefully. Additionally, their fixed pin configuration can limit flexibility in design changes, as the number of available input/output pins is predetermined by the package size.
Considerations
When selecting LQFP Microcontrollers, several factors should be considered. Initial costs can vary depending on the complexity and features of the microcontroller. Operating expenses are generally low due to their energy-efficient design. However, durability can be a concern if the microcontroller is exposed to harsh environmental conditions. Accuracy is typically high, but it depends on the specific application and the quality of the integrated peripherals. Replacement and maintenance costs are generally low, but care must be taken during installation and handling to avoid damage to the leads.
from DigiKey
INTEGRATES A 32-BIT MCU WITH TOU [See More]
- Package Type: LFQP; Other; 64-LQFP Exposed Pad
- ROM Type: Flash
- RAM: 32
- Supply Voltage: 3 to 5.5
from DigiKey
IC MCU 16BIT 128KB FLASH 64LQFP [See More]
- Package Type: LFQP; Other; 64-LQFP Exposed Pad
- ROM Type: Flash
- RAM: 4
- Supply Voltage: 2.7 to 3.6
from DigiKey
MCU 16BIT 64KB FLASH 64-LQFP [See More]
- Package Type: LFQP; Other; 64-LQFP Exposed Pad
- ROM Type: Flash
- RAM: 4
- Supply Voltage: 2.7 to 3.6
from DigiKey
IC USB CNTRLR STORAGE 64-LQFP [See More]
- Package Type: LFQP; Other; 64-LQFP
- ROM Type: EPROM; EEPROM
- RAM: 8
- Supply Voltage: 3 to 3.6
from DigiKey
IC CONV SERIAL-TO-USB 32-LQFP [See More]
- Package Type: LFQP; Other; 32-LQFP
- Supply Voltage: 3 to 3.6
- RAM: 18
- Serial Interface: UART; USB
from DigiKey
IC MCU 16BIT 256KB FLASH 100LQFP [See More]
- Package Type: LFQP; Other; 100-LQFP
- ROM Type: Flash
- RAM: 16
- Supply Voltage: 1.8 to 3.6
from DigiKey
IC PROCESSOR NEURON 64LQFP [See More]
- Package Type: LFQP; Other; 64-LQFP
- ROM Type: Flash
- RAM: 2
- Supply Voltage: 4.5 to 5.5
from DigiKey
IC MCU USB PERIPH HI SPD 100LQFP [See More]
- Package Type: LFQP; Other; 100-LQFP
- ROM Type: ROMLess
- RAM: 16
- Supply Voltage: 3 to 3.6
from DigiKey
IC MCU USB PERIPH HI SPD 128LQFP [See More]
- Package Type: LFQP; Other; 128-LQFP
- ROM Type: ROMLess
- RAM: 16
- Supply Voltage: 3 to 3.6
from DigiKey
IC MCU 16BIT 64LQFP [See More]
- Package Type: LFQP; Other; 64-LQFP
- ROM Type: External Program Memory
- RAM: 8
- Supply Voltage: 3 to 5.5
from DigiKey
Multiphase Motor Driver NMOS CAN, LIN, SPI, UART PG-LQFP-48-11 [See More]
- Package Type: LFQP; Other; 48-LQFP
- Serial Interface: CAN; SPI; UART
- Supply Voltage: 3 to 5.5
- Pin Count: 48
from DigiKey
ARM ® Cortex ®-M0 IMC300A Microcontroller IC 32-Bit Single-Core 48MHz 128KB (128K x 8) FLASH 64-QFP (10x10) [See More]
- Package Type: LFQP; Other; 64-LQFP
- ROM Type: Flash
- RAM: 16
- Pin Count: 64
from DigiKey
IC MCU 16BIT [See More]
- Package Type: LFQP; Other; 64-LQFP
- ROM Type: External Program Memory
- RAM: 8
- Supply Voltage: 3 to 5.5
from DigiKey
IC USB HOST/SLAVE CTRLR 48TQFP [See More]
- Package Type: LFQP; Other; 48-LQFP
- Supply Voltage: 3 to 3.6
- RAM: 0.2560
- Serial Interface: USB
from DigiKey
EMBEDDED POWER [See More]
- Package Type: LFQP; Other; 64-LQFP Exposed Pad
- ROM Type: EPROM; EEPROM; Flash
- RAM: 31
- Supply Voltage: 5.5 to 28
from DigiKey
IC MCU 64KB LS/HS SWITCH 48LQFP [See More]
- Package Type: LFQP; Other; 48-LQFP Exposed Pad
- ROM Type: Flash
- RAM: 6
- Supply Voltage: 2.25 to 5.5
from DigiKey
IC SOC CHIPCORDER AUD 48LQFP [See More]
- Package Type: LFQP; Other; 48-LQFP
- ROM Type: Flash
- RAM: 12
- Supply Voltage: 2.5 to 5.5
from DigiKey
IC PROCESSOR NTWRK SOC 208-LQFP [See More]
- Package Type: LFQP; Other; 208-LQFP
- Serial Interface: UART; USB
- RAM: 16
- Operating Range: Network Processor
from DigiKey
IC USB MCU EMBED HUB AVR 100LQFP [See More]
- Package Type: LFQP; Other; 100-LQFP
- Supply Voltage: 4.4 to 5.25
- RAM: 0.5120
- Serial Interface: SPI; UART; USB
from DigiKey
IC USB KEYBOARD CTRLR HUB 64LQFP [See More]
- Package Type: LFQP; Other; 64-LQFP
- Supply Voltage: 4.4 to 5.25
- RAM: 0.5120
- Serial Interface: SPI
from DigiKey
IC PWR LINE MCU 144LQFP [See More]
- Package Type: LFQP; Other; 144-LQFP
- ROM Type: SRAM
- RAM: 128
- Supply Voltage: 3 to 3.6
from DigiKey
IC PWR LINE MCU 120LQFP [See More]
- Package Type: LFQP; Other; 120-LQFP
- ROM Type: SRAM
- RAM: 32
- Supply Voltage: 3 to 3.6
from DigiKey
IC PWR LINE MCU 80LQFP [See More]
- Package Type: LFQP; Other; 80-LQFP
- Serial Interface: SPI
- Supply Voltage: 3 to 3.6
- Operating Range: Power Line Communications
from DigiKey
IC CPU RISC W/LLC&USB 100-LQFP [See More]
- Package Type: LFQP; Other; 100-LQFP
- ROM Type: Flash
- RAM: 10
- Supply Voltage: 2.25 to 2.75
from Silicon Labs
Silicon Labs ’ USB microcontrollers (MCUs), embedded full-speed USB 2.0, best-in class analog peripherals with a high performance CPU. In addition, USBXpress development kits are available to provide a complete host and device software solution. The C8051F38x family is ideal for applications... [See More]
- Package Type: LFQP
- Life Cycle Stage: New
- Data Bus: 8 Bit
- Bits: 16 Bit
from Silicon Labs
ilicon Labs ’ USB Microcontrollers (MCUs), contain an embedded full-speed USB 2.0, best-in class analog peripherals and a high performance CPU. In addition, USBXpress development kits are available to provide a complete host and device software solution. The C8051T62x/T32x EPROM-based memory... [See More]
- Package Type: LFQP
- Life Cycle Stage: New
- Data Bus: 8 Bit
- Bits: 16 Bit
from Silicon Labs
The C8051F00x-01x family devices are highly integrated mixed-signal MCUs featuring a true 10 or 12-bit multi-channel ADC and two separate 12-bit DACs, two voltage comparators (F002/07/12/17 have one only), a voltage reference, and an 8051-compatible microcontroller core with 32 kB of FLASH memory. [See More]
- Package Type: LFQP
- Life Cycle Stage: Saturation
- Data Bus: 8 Bit
- Clock Speed: 20
from Silicon Labs
C8051T600/1/2/3/4/5/6 devices are fully integrated mixed-signal System-on-a-Chip MCUs. These OTP-EPROM based MCUs are pin-compatible with Silicon Labs' Flash based MCUs. Features. 25 MIPS 8051 CPU. 8, 4, 2 or 1.5 kB one time programmable (OTP) code memory. 256 or 128 B RAM. 10-bit ADC. Up to 8... [See More]
- Package Type: LFQP
- Life Cycle Stage: Saturation
- Data Bus: 8 Bit
- Clock Speed: 25
from Silicon Labs
Silicon Labs' USB Microcontrollers (MCUs), embedded full-speed USB 2.0, make it easy to implement industry standard USB connectivity. USBXpress development software is available to provide a complete host and device side software solution. The USB MCUs feature an on-board universal serial bus (USB)... [See More]
- Package Type: LFQP
- Life Cycle Stage: New
- Data Bus: 8 Bit
- Bits: 16 Bit
from Silicon Labs
The high-performance, low cost CP21xx USB to UART bridge family offers a complete plug and play interface solution that includes royalty-free driver suites and a comprehensive design ecosystem that enables customers to speed time-to-market. Crystal-less operation, in-system programming memory and... [See More]
- Package Type: LFQP; Other; QFN Package
- Life Cycle Stage: Saturation
- Data Bus: 8 Bit
- Bits: 16 Bit
from Silicon Labs
The CP2120 compact SPI-to-I2C bridge and general purpose port expander device can be easily added to a system to solve interface compatibility problems and add more GPIO when required. The chip includes a 4-wire slave SPI bus, bridge control logic, a bidirectional I2C bus interface and eight... [See More]
- Package Type: LFQP; Other; QFN Package
- Life Cycle Stage: Saturation
- Data Bus: 8 Bit
- Bits: 16 Bit
from Silicon Labs
The CP220x family is the industry ’s smallest single-chip Ethernet controller containing an integrated Media Access Controller (MAC) and Physical Layer (PHY). An Ethernet stack that will run on Silicon Labs MCUs is available for no charge. The CP220x single-chip Ethernet controller contains an... [See More]
- Package Type: LFQP; Other; QFN Package
- Life Cycle Stage: Saturation
- Data Bus: 8 Bit
- Bits: 16 Bit