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Microchip Technology PIC18F56Q43-E/6LX — Microcontrollers & Processors (MCU / MPU / DSP)

Microchip PIC18F56Q43-E/6LX 8-bit MCU, 64 MHz, 64 KB Flash

MPNPIC18F56Q43-E/6LX
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Microchip PIC® XLP™ 18F PIC18F56Q43-E/6LX, 8-bit MCU, 64 MHz, 64KB Flash, 4K x 8 RAM, 1K x 8 EEPROM, 44 I/O, 12-bit ADC, 8-bit DAC, 1.8V-5.5V, -40°C to 125°C, 48-VFQFN Exposed Pad.

$2.2600Ref. price · indicative, final on quote
Packaging48-VFQFN Exposed Pad
RoHSROHS3 Compliant
SeriesPIC® XLP™ 18F
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

PIC18F56Q43-E/6LX specifications
ParameterValue
SeriesPIC® XLP™ 18F
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 5.5V
Operating temperature-40°C ~ 125°C (TA)
Speed64MHz
PackageTube
RAM size4K x 8
Core size8-Bit
EEPROM size1K x 8
PeripheralsBrown-out Detect/Reset, LVD, POR, PWM, WDT
ConnectivityI²C, LINbus, SPI, UART/USART
Number of i (O)44
Core processorPIC
Case48-VFQFN Exposed Pad
Data convertersA/D 43x12b; D/A 1x8b
Program memory size64KB (64K x 8)

Product details

64 MHz 8-bit PIC core with XLP technology

The Microchip PIC18F56Q43-E/6LX is an 8-bit MCU from the PIC® XLP™ 18F family, built around a 64 MHz PIC core.

The 125°C ceiling also provides margin for self-heating in a sealed enclosure with limited airflow.

On-chip analog and connectivity mix

A 43-channel 12-bit ADC covers multi-sensor acquisition — thermistors, potentiometers, current-shunt amplifiers — without an external mux. The single 8-bit DAC provides one analog output for set-point generation or simple waveform synthesis. The peripheral set includes Brown-out Detect, Low-Voltage Detect, POR, PWM, and WDT, which together handle supply monitoring, power sequencing, and fail-safe reset without external supervisor ICs. The UART and SPI also serve industrial sensor hubs and simple HMI panels.

Frequently asked questions

How many I/O pins does PIC18F56Q43-E/6LX have?

It provides 44 general-purpose I/O pins in the 48-VFQFN package.

What is the closest functional alternative to PIC18F56Q43-E/6LX?

The PIC16LF1559-I/SS is a lower-pin-count (20-pin SSOP) 8-bit PIC MCU with 32 MHz core, 17 I/O, and 10-bit ADC, but it lacks the 64 MHz speed, 44 I/O, 12-bit ADC, 8-bit DAC, and 125°C temperature rating of the PIC18F56Q43. It is not a pin-compatible drop-in; the decision between them is driven by I/O count, ADC resolution, and temperature grade requirements.