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Microchip Technology PIC18F27Q43-I/SS — Microcontrollers & Processors (MCU / MPU / DSP)

PIC18F27Q43-I/SS 8-bit MCU, 64 MHz, 128 KB Flash, 28-SSOP

MPNPIC18F27Q43-I/SS
Active

Microchip PIC® XLP™ 18F PIC18F27Q43-I/SS, 8-bit MCU, 64 MHz, 128KB Flash, 8K x 8 RAM, 1K x 8 EEPROM, 28-SSOP, -40°C to 85°C, 1.8V to 5.5V.

$1.9100Ref. price · indicative, final on quote
Packaging28-SSOP (0.209", 5.30mm Width)
RoHSROHS3 Compliant
SeriesPIC® XLP™ 18F, Functional Safety (FuSa)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

PIC18F27Q43-I/SS specifications
ParameterValue
SeriesPIC® XLP™ 18F, Functional Safety (FuSa)
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 5.5V
Operating temperature-40°C ~ 85°C (TA)
Speed64MHz
PackageTube
RAM size8K 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)25
Core processorPIC
Case28-SSOP (0.209\", 5.30mm Width)
Data convertersA/D 24x12b; D/A 1x8b
Program memory size128KB (128K x 8)

Product details

The Microchip PIC18F27Q43-I/SS is an 8-bit MCU from the PIC® XLP™ 18F series, rated for Functional Safety (FuSa) applications. It runs at 64 MHz, giving it enough throughput for real-time control loops — think brushless-DC motor commutation, sensor fusion at a few kHz, or managing a small HMI with a character LCD. The 24-channel 12-bit ADC and single 8-bit DAC cover most analog sensor interfaces, so you can often skip an external ADC. The 28-SSOP package (5.30 mm width) is a compact surface-mount footprint that suits space-constrained PCBs.

Connectivity and peripherals — what is on the bus

The LINbus support is useful for automotive body electronics — window lifts, seat controls, or lighting modules — where a LIN node connects to a CAN backbone.

This is a part you can design into a new BOM today without planning a future migration.

Sourcing posture — quoted to order

Because the lifecycle is Active, there is no LTB risk and no urgency to stockpile — but if you need a production quantity for a build, send the RFQ and we will confirm the lead time and price.

Frequently asked questions

Is PIC18F27Q43-I/SS RoHS compliant?

Yes, it is ROHS3 Compliant, meeting the EU RoHS directive for lead-free assembly.