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PIC18F1320-I

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Microchip Tech MICROCHIP, SOIC-18-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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PIC18F1320-I

Microchip Tech · MICROCHIP · SOIC-18-300mil

PIC18F1320-I from Microchip Tech, in a SOIC-18-300mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 RA0/AN0 bidirectional PORTA digital I/O (ST) or analog input 0.
2 RA1/AN1/LVDIN bidirectional PORTA digital I/O (ST), analog input 1, or low-voltage detect input.
3 RA4/T0CKI bidirectional Digital I/O (ST, open-drain when configured as output) or Timer0 external clock input.
4 MCLR/VPP/RA5 input Active-low Master Clear (Reset) input, programming voltage input (VPP), or digital input RA5 (RA5 available only when MCLR Reset is disabled).
5 VSS power_in Ground reference for logic and I/O pins.
6 RA2/AN2/VREF- bidirectional PORTA digital I/O (ST), analog input 2, or A/D reference voltage (low) input.
7 RA3/AN3/VREF+ bidirectional PORTA digital I/O (ST), analog input 3, or A/D reference voltage (high) input.
8 RB0/AN4/INT0 bidirectional PORTB digital I/O (TTL, software-programmable weak pull-up), analog input 4, or external interrupt 0.
9 RB1/AN5/TX/CK/INT1 bidirectional PORTB digital I/O (TTL), analog input 5, EUSART asynchronous transmit, EUSART synchronous clock, or external interrupt 1.
10 RB4/AN6/RX/DT/KBI0 bidirectional PORTB digital I/O (TTL), analog input 6, EUSART asynchronous receive, EUSART synchronous data, or interrupt-on-change pin.
11 RB5/PGM/KBI1 bidirectional PORTB digital I/O (TTL), low-voltage ICSP programming enable pin, or interrupt-on-change pin.
12 RB6/PGC/T1OSO/T13CKI/P1C/KBI2 bidirectional PORTB digital I/O (TTL), in-circuit debugger and ICSP programming clock, Timer1 oscillator output, Timer1/Timer3 external clock, Enhanced CCP1/PWM output P1C, or interrupt-on-change pin.
13 RB7/PGD/T1OSI/P1D/KBI3 bidirectional PORTB digital I/O (TTL), in-circuit debugger and ICSP programming data, Timer1 oscillator input, Enhanced CCP1/PWM output P1D, or interrupt-on-change pin.
14 VDD power_in Positive supply for logic and I/O pins (device operating range 2.0V to 5.5V).
15 OSC2/CLKO/RA6 bidirectional Oscillator crystal output, CLKO (1/4 OSC1 frequency, instruction cycle rate) in RC, EC and INTRC modes, or general purpose I/O RA6.
16 OSC1/CLKI/RA7 bidirectional Oscillator crystal or external clock input (ST in RC mode, CMOS otherwise), or general purpose I/O RA7.
17 RB2/P1B/INT2 bidirectional PORTB digital I/O (TTL), Enhanced CCP1/PWM output P1B, or external interrupt 2.
18 RB3/CCP1/P1A bidirectional PORTB digital I/O (TTL), capture 1 input/compare 1 output/PWM 1 output, or Enhanced CCP1/PWM output P1A.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-18-300mil
Category Embedded Processors & Controllers
Pins 18

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply Voltage VDD 4.2 5.5 V PIC18F1220/1320, HS, XT, RC and LP Oscillator mode 233
RAM Data Retention Voltage VDR 1.5 V 233
VDD Start Voltage for Power-on Reset VPOR 0.7 V 233
VDD Rise Rate for Power-on Reset SVDD 0.05 V/ms 233
Brown-out Reset Voltage BORV=01 VBOR 3.88 4.22 4.56 V Industrial -10C to +85C, BORV1:BORV0 = 01 233
Brown-out Reset Voltage BORV=00 VBOR 4.18 4.54 4.9 V Industrial -10C to +85C, BORV1:BORV0 = 00 233
Brown-out Reset Voltage BORV=00 cold VBOR 3.9 4.54 5.18 V Industrial -40C to -10C, BORV1:BORV0 = 00 233
Power-Down Current IPD 0.1 2 µA VDD = 5.0V, Sleep mode, -40°C 234
Power-Down Current IPD 0.4 6.5 µA VDD = 5.0V, Sleep mode, +85°C 234
Supply Current RC_RUN 31 kHz IDD 55 80 µA FOSC = 31 kHz, RC_RUN, internal oscillator, VDD = 5.0V, +25°C 234
Supply Current RC_RUN 1 MHz IDD 390 550 µA FOSC = 1 MHz, RC_RUN, internal oscillator, VDD = 5.0V, +25°C 235
Supply Current RC_RUN 4 MHz IDD 1.2 1.8 mA FOSC = 4 MHz, RC_RUN, internal oscillator, VDD = 5.0V, +25°C 235
Supply Current RC_IDLE 31 kHz IDD 14 16 µA FOSC = 31 kHz, RC_IDLE, internal oscillator, VDD = 5.0V, +25°C 236
Supply Current RC_IDLE 1 MHz IDD 195 380 µA FOSC = 1 MHz, RC_IDLE, internal oscillator, VDD = 5.0V, +25°C 236
Supply Current RC_IDLE 4 MHz IDD 400 800 µA FOSC = 4 MHz, RC_IDLE, internal oscillator, VDD = 5.0V, +25°C 237
Supply Current PRI_RUN 1 MHz IDD 0.63 1 mA FOSC = 1 MHz, PRI_RUN, EC oscillator, VDD = 5.0V, +25°C 237
Supply Current PRI_RUN 4 MHz IDD 1.6 2 mA FOSC = 4 MHz, PRI_RUN, EC oscillator, VDD = 5.0V, +25°C 238
Supply Current PRI_RUN 40 MHz IDD 9.5 12 mA FOSC = 40 MHz, PRI_RUN, EC oscillator, VDD = 4.2V, +25°C 238
Supply Current PRI_RUN 40 MHz IDD 12.1 15 mA FOSC = 40 MHz, PRI_RUN, EC oscillator, VDD = 5.0V, +25°C 238
Supply Current PRI_IDLE 1 MHz IDD 110 150 µA FOSC = 1 MHz, PRI_IDLE, EC oscillator, VDD = 5.0V, +25°C 239
Supply Current PRI_IDLE 4 MHz IDD 420 525 µA FOSC = 4 MHz, PRI_IDLE, EC oscillator, VDD = 5.0V, +25°C 239
Input Low Voltage, I/O ports TTL buffer VIL 0.15 VDD VDD < 4.5V (VSS to 0.15 VDD) 243
Input Low Voltage, I/O ports TTL buffer VIL 0.8 V 4.5V ≤ VDD ≤ 5.5V 243
Input Low Voltage, Schmitt Trigger buffer VIL 0.2 VDD VSS to 0.2 VDD 243
Input Low Voltage, MCLR VIL 0.2 VDD VSS to 0.2 VDD 243
Input Low Voltage, OSC1 (XT, HS, LP) and T1OSI VIL 0.3 VDD VSS to 0.3 VDD 243
Input Low Voltage, OSC1 (RC and EC) VIL 0.2 VDD VSS to 0.2 VDD 243
Input High Voltage, I/O ports TTL buffer VIH 2 V 4.5V ≤ VDD ≤ 5.5V (max VDD) 243
Input High Voltage, Schmitt Trigger buffer VIH 0.8 1 VDD 0.8 VDD to VDD 243
Input High Voltage, MCLR, OSC1 (EC mode) VIH 0.8 1 VDD 0.8 VDD to VDD 243
Input High Voltage, OSC1 (XT, HS, LP) and T1OSI VIH 1.6 VDD 1.6 V to VDD as printed 243
Input High Voltage, OSC1 (RC mode) VIH 0.9 1 VDD 0.9 VDD to VDD 243
Input Leakage Current, I/O ports IIL 1 µA VSS ≤ VPIN ≤ VDD, pin at high-impedance 243
Input Leakage Current, MCLR IIL 5 µA VSS ≤ VPIN ≤ VDD 243
Input Leakage Current, OSC1 IIL 5 µA VSS ≤ VPIN ≤ VDD 243
PORTB weak pull-up current IPURB 50 400 µA VDD = 5V, VPIN = VSS 243
Ambient temperature under bias -40 125 °C 230
Storage temperature -65 150 °C 230
Voltage on any pin with respect to VSS (except VDD, MCLR and RA4) -0.3 V -0.3V to (VDD + 0.3V) 230
Voltage on VDD with respect to VSS VDD -0.3 5.5 V 230
Voltage on MCLR with respect to VSS 0 13.25 V Note 2 230
Voltage on RA4 with respect to VSS 0 8.5 V 230
Total power dissipation 1 W Note 1 230
Operating temperature (industrial) TA -40 85 °C Industrial 233

CAD (KiCad official)

  • Symbol: PIC18F1320-I
  • Footprint: Package_SO:SOIC-18W_7.5x11.6mm_P1.27mm
  • 3D model: SOIC-18-300mil (KiCad packages3D, STEP)
  • 3D model files: pic18f1320-i-etched.step / pic18f1320-i-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pic18f1320-i.step / pic18f1320-i.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Microchip Tech datasheet (296 pp, sha256 0adbd66402bd530a, retrieved 2026-10-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF