PIC18LF2320T / PIC18F4220 (SOIC-28-300mil)
Synchronized Pinout (Symbol / 2D / 3D) (28/28)
Touch or hover any pin to highlight concurrently across Symbol, Footprint and 3D| Pin | Symbol | Type | Function (EN) |
|---|---|---|---|
| 1 | MCLR#/VPP | I/O | Multiplexed I/O & Peripheral Pin MCLR#/VPP (General) |
| 2 | RA0/AN0 | I/O | Multiplexed I/O & Peripheral Pin RA0/AN0 (General) |
| 3 | RA1/AN1 | I/O | Multiplexed I/O & Peripheral Pin RA1/AN1 (General) |
| 4 | RA2/AN2/VREF-/CVREF | Analog | Multiplexed I/O & Peripheral Pin RA2/AN2/VREF-/CVREF (General) |
| 5 | RA3/AN3/VREF+ | Analog | Multiplexed I/O & Peripheral Pin RA3/AN3/VREF+ (General) |
| 6 | RA4/T0CKI/C1OUT | I/O | Multiplexed I/O & Peripheral Pin RA4/T0CKI/C1OUT (General) |
| 7 | NC | NC | No Connect (Leave Floating) |
| 8 | VSS | GND | Ground Reference Pin (VSS) |
| 9 | OSC1/CLKI/RA7 | I/O | Multiplexed I/O & Peripheral Pin OSC1/CLKI/RA7 (RTC/CLK) |
| 10 | OSC2/CLKO/RA6 | I/O | Multiplexed I/O & Peripheral Pin OSC2/CLKO/RA6 (RTC/CLK) |
| 11 | RC0/T1OSO/T1CKI | I/O | Multiplexed I/O & Peripheral Pin RC0/T1OSO/T1CKI (General) |
| 12 | RC1/T1OSI/CCP2* | I/O | Multiplexed I/O & Peripheral Pin RC1/T1OSI/CCP2* (General) |
| 13 | RC2/CCP1/P1A | I/O | Multiplexed I/O & Peripheral Pin RC2/CCP1/P1A (General) |
| 14 | RC3/SCK/SCL | I/O | Multiplexed I/O & Peripheral Pin RC3/SCK/SCL (SPI, I2C) |
| 15 | RC4/SDI/SDA | I/O | Multiplexed I/O & Peripheral Pin RC4/SDI/SDA (I2C) |
| 16 | RC5/SDO | I/O | Multiplexed I/O & Peripheral Pin RC5/SDO (General) |
| 17 | RC6/TX/CK | I/O | Multiplexed I/O & Peripheral Pin RC6/TX/CK (General) |
| 18 | RC7/RX/DT | I/O | Multiplexed I/O & Peripheral Pin RC7/RX/DT (General) |
| 19 | VSS | GND | Ground Reference Pin (VSS) |
| 20 | VDD | Power | Power Supply Input (VDD — 2.0V to 5.5V) |
| 21 | RB0/AN12/INT0 | I/O | Multiplexed I/O & Peripheral Pin RB0/AN12/INT0 (General) |
| 22 | RB1/AN10/INT1 | I/O | Multiplexed I/O & Peripheral Pin RB1/AN10/INT1 (General) |
| 23 | RB2/AN8/INT2 | I/O | Multiplexed I/O & Peripheral Pin RB2/AN8/INT2 (General) |
| 24 | RB3/AN9/CCP2* | I/O | Multiplexed I/O & Peripheral Pin RB3/AN9/CCP2* (General) |
| 25 | RB4/AN11/KBI0 | I/O | Multiplexed I/O & Peripheral Pin RB4/AN11/KBI0 (General) |
| 26 | RB5/KBI1/PGM | I/O | Multiplexed I/O & Peripheral Pin RB5/KBI1/PGM (General) |
| 27 | RB6/KBI2/PGC | I/O | Multiplexed I/O & Peripheral Pin RB6/KBI2/PGC (General) |
| 28 | RB7/KBI3/PGD | I/O | Multiplexed I/O & Peripheral Pin RB7/KBI3/PGD (General) |
Extracted Drawings Gallery (6 Standard Drawings + 12 Extracted Figures)
Read the original datasheet PDF directly or click any drawing to view fullscreenTechnical Specifications & Part Details (PIC18LF2320T-I/SO)
Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet (EN)5-Point Standards Verification
Automated compliance checks prior to exportHardware Verification & Community Engineering Reviews
Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from DatasheetFamily Variants & Same Datasheet Chips — PIC18LF2320T / PIC18F4220 (2)
PIC18LF2320T / PIC18F4220 (TQFP-44(10x10))
Mechanical Dimensions & Land Pattern (SOIC-28-300mil)
Extracted from Datasheet & IPC-7351B NormalizedRecommended Companion BOM & Drop-In Equivalents
Passive external components per reference schematic and 1:1 pin-compatible alternatives| Designator / Replacement MPN | Value / Package | Function & PCB Layout Rule |
|---|---|---|
| N/A BOM | Per application circuit SOIC-28-300mil | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — PIC18LF2320T-I/SO (SOIC-28-300mil)
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of PIC18LF2320T-I/SO (SOIC-28-300mil)?
Manufactured by MICROCHIP, the PIC18LF2320T-I/SO is housed in a SOIC-28-300mil package with 28 pins and a 1.27 mm lead pitch, supporting a VCC supply range of 2.0V to 5.5V. Key pins include: 1 (MCLR#/VPP: Multiplexed I/O & Peripheral Pin MCLR#/VPP (General)), 2 (RA0/AN0: Multiplexed I/O & Peripheral Pin RA0/AN0 (General)), 3 (RA1/AN1: Multiplexed I/O & Peripheral Pin RA1/AN1 (General)), 4 (RA2/AN2/VREF-/CVREF: Multiplexed I/O & Peripheral Pin RA2/AN2/VREF-/CVREF (General)), 5 (RA3/AN3/VREF+: Multiplexed I/O & Peripheral Pin RA3/AN3/VREF+ (General)), 6 (RA4/T0CKI/C1OUT: Multiplexed I/O & Peripheral Pin RA4/T0CKI/C1OUT (General)).
What are the IPC-7351B PCB Footprint dimensions for PIC18LF2320T-I/SO?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), PIC18LF2320T-I/SO (SOIC-28-300mil) has a nominal body envelope of 7.50 × 17.90 mm, pitch e = 1.27 mm, and 28 copper pads.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for PIC18LF2320T-I/SO?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for PIC18LF2320T-I/SO (MICROCHIP, SOIC-28-300mil) directly on this page, including KiCad 8 Footprints (.kicad_mod), Schematic Symbols (.kicad_sym), Autodesk Fusion 360 / Eagle (.lbr), and 3D STEP AP214 / WebGL GLB models.
Static Reference Appendix: Pinout Table (28 pins) & PIC18LF2320T / PIC18F4220 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | MCLR#/VPP | Digital_IO | Signal terminal MCLR#/VPP (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: MCLR#/VPP. Supported peripheral buses: General. |
| 2 | RA0/AN0 | Digital_IO | Signal terminal RA0/AN0 (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RA0/AN0. Supported peripheral buses: General. |
| 3 | RA1/AN1 | Digital_IO | Signal terminal RA1/AN1 (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RA1/AN1. Supported peripheral buses: General. |
| 4 | RA2/AN2/VREF-/CVREF | Analog | Signal terminal RA2/AN2/VREF-/CVREF (Analog, 2.0V to 5.5V domain). Multiplexed alternate functions: RA2/AN2/VREF-/CVREF. Supported peripheral buses: General. |
| 5 | RA3/AN3/VREF+ | Analog | Signal terminal RA3/AN3/VREF+ (Analog, 2.0V to 5.5V domain). Multiplexed alternate functions: RA3/AN3/VREF+. Supported peripheral buses: General. |
| 6 | RA4/T0CKI/C1OUT | Digital_IO | Signal terminal RA4/T0CKI/C1OUT (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RA4/T0CKI/C1OUT. Supported peripheral buses: General. |
| 7 | NC | No_Connect | No Connect (Leave Floating) |
| 8 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| 9 | OSC1/CLKI/RA7 | Digital_IO | Signal terminal OSC1/CLKI/RA7 (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: OSC1/CLKI/RA7. Supported peripheral buses: RTC/CLK. |
| 10 | OSC2/CLKO/RA6 | Digital_IO | Signal terminal OSC2/CLKO/RA6 (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: OSC2/CLKO/RA6. Supported peripheral buses: RTC/CLK. |
| 11 | RC0/T1OSO/T1CKI | Digital_IO | Signal terminal RC0/T1OSO/T1CKI (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RC0/T1OSO/T1CKI. Supported peripheral buses: General. |
| 12 | RC1/T1OSI/CCP2* | Digital_IO | Signal terminal RC1/T1OSI/CCP2* (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RC1/T1OSI/CCP2*. Supported peripheral buses: General. |
| 13 | RC2/CCP1/P1A | Digital_IO | Signal terminal RC2/CCP1/P1A (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RC2/CCP1/P1A. Supported peripheral buses: General. |
| 14 | RC3/SCK/SCL | Digital_IO | Signal terminal RC3/SCK/SCL (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RC3/SCK/SCL. Supported peripheral buses: SPI, I2C. |
| 15 | RC4/SDI/SDA | Digital_IO | Signal terminal RC4/SDI/SDA (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RC4/SDI/SDA. Supported peripheral buses: I2C. |
| 16 | RC5/SDO | Digital_IO | Signal terminal RC5/SDO (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RC5/SDO. Supported peripheral buses: General. |
| 17 | RC6/TX/CK | Digital_IO | Signal terminal RC6/TX/CK (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RC6/TX/CK. Supported peripheral buses: General. |
| 18 | RC7/RX/DT | Digital_IO | Signal terminal RC7/RX/DT (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RC7/RX/DT. Supported peripheral buses: General. |
| 19 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| 20 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 2.0V to 5.5V domain (Max rating: 5.5V). |
| 21 | RB0/AN12/INT0 | Digital_IO | Signal terminal RB0/AN12/INT0 (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RB0/AN12/INT0. Supported peripheral buses: General. |
| 22 | RB1/AN10/INT1 | Digital_IO | Signal terminal RB1/AN10/INT1 (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RB1/AN10/INT1. Supported peripheral buses: General. |
| 23 | RB2/AN8/INT2 | Digital_IO | Signal terminal RB2/AN8/INT2 (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RB2/AN8/INT2. Supported peripheral buses: General. |
| 24 | RB3/AN9/CCP2* | Digital_IO | Signal terminal RB3/AN9/CCP2* (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RB3/AN9/CCP2*. Supported peripheral buses: General. |
| 25 | RB4/AN11/KBI0 | Digital_IO | Signal terminal RB4/AN11/KBI0 (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RB4/AN11/KBI0. Supported peripheral buses: General. |
| 26 | RB5/KBI1/PGM | Digital_IO | Signal terminal RB5/KBI1/PGM (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RB5/KBI1/PGM. Supported peripheral buses: General. |
| 27 | RB6/KBI2/PGC | Digital_IO | Signal terminal RB6/KBI2/PGC (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RB6/KBI2/PGC. Supported peripheral buses: General. |
| 28 | RB7/KBI3/PGD | Digital_IO | Signal terminal RB7/KBI3/PGD (I/O, 2.0V to 5.5V domain). Multiplexed alternate functions: RB7/KBI3/PGD. Supported peripheral buses: General. |












