PIC18F4553-I/ML Microchip Integrated Circuit (Quad Flat No-Lead) In Stock

Name: PIC18F4553-I/ML
Brand: Microchip
SKU: PIC18F4553-I/ML
Availability: InStock

PIC18F4553-I/ML is an 8-bit PIC18 microcontroller from Microchip featuring 32 KB Flash, 2 KB RAM, and full-speed USB 2.0 in a 44-pin QFN package. It operates up to 48 MHz and includes an on-chip ADC for analog signal acquisition. Suited for USB HID peripherals, data loggers, and embedded control applications requiring direct PC connectivity.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

PIC18F4553-I/MLQuad Flat No-Lead

Quick Facts

Manufacturer: Microchip
Package: Quad Flat No-Lead
Pin Count: 44
Lifecycle: ACTIVE
Datasheet: PIC18F4553-I/ML Datasheet PDF
Category: Integrated Circuit
Price: From $11.8200(MOQ 135)
Temp Range: -40.0°C to 85.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of PIC18F4553-I/ML?

Full-speed USB 2.0 device interface for direct PC connectivity without external USB chip
32 KB Flash and 2 KB RAM support moderately complex embedded firmware
48 MHz maximum clock speed enables fast control loops and USB transaction handling
On-chip ADC for direct analog sensor signal acquisition
Compact 44-pin QFN package reduces PCB footprint versus equivalent TQFP devices

What is PIC18F4553-I/ML used for?

PIC18F4553-I/ML is widely used in USB HID and CDC devices such as custom keyboards, barcode scanner interfaces, and USB-to-serial adapters where a simple microcontroller with native USB is preferred. Data acquisition systems leverage its on-chip ADC and USB to stream sensor data directly to a host PC without an intermediate UART or SPI bridge. Hobbyist and prototyping platforms also adopt this MCU for its straightforward USB stack integration with Microchip's library support.

What are the specifications of PIC18F4553-I/ML?

Pbfree Code	Yes
YTEOL	7.5
Has ADC	YES
Bit Size	8
Boundary Scan	NO
CPU Family	PIC18
Clock Frequency-Max	48MHz
DAC Channels	NO
DMA Channels	NO
JESD-30 Code	S-XQCC-N44
JESD-609 Code	e3
Number of I/O Lines	34
On Chip Program ROM Width	8
PWM Channels	YES
Package Body Material	UNSPECIFIED
Package Equivalence Code	LCC44,.32SQ,25
Package Shape	SQUARE
Package Style	CHIP CARRIER
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
RAM (bytes)	2048
ROM (words)	32768
ROM Programmability	FLASH
Screening Level	TS 16949
Speed	48MHz
Supply Voltage-Max	5.5V
Supply Voltage-Min	5V
Supply Voltage-Nom	5V
Surface Mount	YES
Technology	CMOS
Temperature Grade	INDUSTRIAL
Terminal Finish	Matte Tin (Sn)
Terminal Form	NO LEAD
Terminal Pitch	0.65mm
Terminal Position	QUAD
Time@Peak Reflow Temperature-Max (s)	40
uPs/uCs/Peripheral ICs Type	MICROCONTROLLER, RISC
Package	Quad Flat No-Lead

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	3A991.A.2
HTS Code	8542.31.00.01
Country of Origin	Thailand

Where can I find the PIC18F4553-I/ML datasheet?

PIC18F4553-I/ML Datasheet Download

Official datasheet from Microchip

What are equivalent replacements for PIC18F4553-I/ML?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

Does PIC18F4553-I/ML support full-speed USB 2.0 natively, and what does that mean for BOM cost?

Yes. PIC18F4553-I/ML includes a full-speed USB 2.0 device peripheral operating at 12 Mbps on-chip, eliminating the need for an external USB bridge chip such as CH340 or FT232. This integration can reduce BOM cost by several dollars per unit and simplify PCB layout by removing an additional IC and its associated decoupling and oscillator components.

How does the 44-pin QFN package of PIC18F4553-I/ML compare in footprint to a TQFP-44 variant?

A 44-pin QFN package has a body size of approximately 8 mm x 8 mm with no lead protrusion, whereas a TQFP-44 package typically measures around 10 mm x 10 mm including leads. The QFN version of PIC18F4553 saves roughly 20% board area and is preferred in space-constrained USB device designs.

For a USB data logger running at 48 MHz, how much Flash memory does PIC18F4553-I/ML provide for firmware and storage buffers?

PIC18F4553-I/ML provides 32 KB of on-chip Flash for program storage and 2 KB of RAM for runtime data buffers. At 48 MHz clock speed, this is typically sufficient to host a Microchip USB CDC or HID stack alongside sensor sampling and basic data formatting routines for applications logging up to a few hundred bytes per second.

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AvailabilityIn Stock

Reference Price (USD)

From $11.8200

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
135+	$13.1300	$1772.55
675+	$12.4800	$8424.00
1350+	$11.8200	$15957.00

pcs

Unit price: $13.1300 · Total: $1772.55

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”

Thomas Mueller

Hardware Lead, SensorTech GmbH, Germany

PIC18F4553-I/ML Microchip Integrated Circuit (Quad Flat No-Lead) In Stock

What are the key features of PIC18F4553-I/ML?

What is PIC18F4553-I/ML used for?

What are the specifications of PIC18F4553-I/ML?

Compliance & Regulatory

Where can I find the PIC18F4553-I/ML datasheet?

What are equivalent replacements for PIC18F4553-I/ML?

Frequently Asked Questions

Does PIC18F4553-I/ML support full-speed USB 2.0 natively, and what does that mean for BOM cost?

How does the 44-pin QFN package of PIC18F4553-I/ML compare in footprint to a TQFP-44 variant?

For a USB data logger running at 48 MHz, how much Flash memory does PIC18F4553-I/ML provide for firmware and storage buffers?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

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About Microchip

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