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PIC16F57-I

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Microchip Tech Microcontrollers (MCU/MPU/SOC), SOIC-28-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

Schematic Symbol

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Datasheet

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Contents

README

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PIC16F57-I

Microchip Tech · Microcontrollers (MCU/MPU/SOC) · SOIC-28-300mil

PIC16F57-I from Microchip Tech, in a SOIC-28-300mil. 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 T0CKI input Schmitt Trigger clock input to Timer0; must be tied to VSS or VDD if not in use to reduce current consumption.
2 VDD power_in Positive supply for logic and I/O pins, 2.0V to 5.5V operating range.
3 N/C unconnected Unused, do not connect.
4 VSS power_in Ground reference for logic and I/O pins.
5 N/C unconnected Unused, do not connect.
6 RA0 bidirectional PORTA bidirectional I/O pin with TTL input and CMOS output.
7 RA1 bidirectional PORTA bidirectional I/O pin with TTL input and CMOS output.
8 RA2 bidirectional PORTA bidirectional I/O pin with TTL input and CMOS output.
9 RA3 bidirectional PORTA bidirectional I/O pin with TTL input and CMOS output.
10 RB0 bidirectional PORTB bidirectional I/O pin with TTL input and CMOS output.
11 RB1 bidirectional PORTB bidirectional I/O pin with TTL input and CMOS output.
12 RB2 bidirectional PORTB bidirectional I/O pin with TTL input and CMOS output.
13 RB3 bidirectional PORTB bidirectional I/O pin with TTL input and CMOS output.
14 RB4 bidirectional PORTB bidirectional I/O pin with TTL input and CMOS output.
15 RB5 bidirectional PORTB bidirectional I/O pin with TTL input and CMOS output.
16 RB6/ICSPCLK bidirectional PORTB bidirectional I/O pin that also serves as the Schmitt Trigger serial programming clock input.
17 RB7/ICSPDAT bidirectional PORTB bidirectional I/O pin that also serves as the serial programming data I/O (Schmitt Trigger input, CMOS output).
18 RC0 bidirectional PORTC bidirectional I/O pin with TTL input and CMOS output.
19 RC1 bidirectional PORTC bidirectional I/O pin with TTL input and CMOS output.
20 RC2 bidirectional PORTC bidirectional I/O pin with TTL input and CMOS output.
21 RC3 bidirectional PORTC bidirectional I/O pin with TTL input and CMOS output.
22 RC4 bidirectional PORTC bidirectional I/O pin with TTL input and CMOS output.
23 RC5 bidirectional PORTC bidirectional I/O pin with TTL input and CMOS output.
24 RC6 bidirectional PORTC bidirectional I/O pin with TTL input and CMOS output.
25 RC7 bidirectional PORTC bidirectional I/O pin with TTL input and CMOS output.
26 OSC2/CLKOUT output Oscillator crystal output connecting to crystal or resonator; in RC mode outputs CLKOUT at 1/4 the frequency of OSC1.
27 OSC1/CLKIN input Oscillator crystal input or external clock source input (Schmitt Trigger).
28 MCLR/VPP input Active-low Reset input and programming voltage input; voltage must not exceed VDD to avoid unintended entry into Programming mode.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-28-300mil
Category Embedded Processors & Controllers
Pins 28

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) VDD 2 5.5 V 62
Operating Temperature (TA) TA -40 85 °C industrial 62
VDD Rise Rate to ensure Power-on Reset SVDD 0.05 V/ms 62
Supply Current (IDD) IDD 170 350 μA FOSC = 4 MHz, VDD = 2.0V, XT or RC mode 62
Supply Current (IDD) IDD 0.4 1 mA FOSC = 10 MHz, VDD = 3.0V, HS mode 62
Supply Current (IDD) IDD 1.7 5 mA FOSC = 20 MHz, VDD = 5.0V, HS mode 62
Supply Current (IDD) IDD 15 22.5 μA FOSC = 32 kHz, VDD = 2.0V, LP mode, WDT disabled 62
Power-down Current (IPD) IPD 1 6 μA VDD = 2.0V, WDT enabled 62
Power-down Current (IPD) IPD 0.5 2.5 μA VDD = 2.0V, WDT disabled 62
Input Low Voltage, I/O ports VIL 0.8 V 4.5V < VDD ≤ 5.5V 64
Input High Voltage, I/O ports VIH 2 V 4.5V < VDD ≤ 5.5V 64
Input Leakage Current, I/O ports IIL -1 1 μA VSS ≤ VPIN ≤ VDD, pin at high-impedance 64
Input Leakage Current, MCLR IIL -5 5 μA VSS ≤ VPIN ≤ VDD 64
Input Leakage Current, T0CKI IIL -5 5 μA VSS ≤ VPIN ≤ VDD 64
Input Leakage Current, OSC1 IIL -5 5 μA VSS ≤ VPIN ≤ VDD, XT, HS and LP modes 64
Output Low Voltage, I/O ports VOL 0.6 V IOL = 8.5 mA, VDD = 4.5V 64
Output Low Voltage, OSC2/CLKOUT (RC mode) VOL 0.6 V IOL = 1.6 mA, VDD = 4.5V 64
External CLKIN Frequency, XT Osc mode FOSC 4 MHz XT Osc mode 66
External CLKIN Frequency, HS Osc mode FOSC 20 MHz HS Osc mode 66
External CLKIN Frequency, LP Osc mode FOSC 200 kHz LP Osc mode 66
Oscillator Frequency, RC Osc mode FOSC 4 MHz RC Osc mode 66
Oscillator Frequency, XT Osc mode FOSC 0.1 4 MHz XT Osc mode 66
Oscillator Frequency, HS Osc mode FOSC 4 20 MHz HS Osc mode 66
Oscillator Frequency, LP Osc mode FOSC 5 200 kHz LP Osc mode 66
External CLKIN Period, XT Osc mode TOSC 250 ns XT Osc mode 66
External CLKIN Period, HS Osc mode TOSC 50 ns HS Osc mode 66
External CLKIN Period, LP Osc mode TOSC 5 μs LP Osc mode 66
Oscillator Period, RC Osc mode TOSC 250 ns RC Osc mode 66
Oscillator Period, XT Osc mode TOSC 250 10000 ns XT Osc mode 66
Oscillator Period, HS Osc mode TOSC 50 250 ns HS Osc mode 66
Oscillator Period, LP Osc mode TOSC 5 μs LP oscillator 66
Clock in (OSC1) Low or High Time, XT oscillator TosL, TosH 50 ns XT oscillator 66
Clock in (OSC1) Low or High Time, HS oscillator TosL, TosH 20 ns HS oscillator 66
Clock in (OSC1) Low or High Time, LP oscillator TosL, TosH 2 μs LP oscillator 66
OSC1↑ to CLKOUT↓ TosH2CKL 15 30 ns 67
OSC1↑ to CLKOUT↑ TosH2CKH 15 30 ns 67
OSC1↑ (Q1 cycle) to Port out valid TOSH2IOV 100 ns 67
Port output rise time, PIC16F54/57 TIOR 10 25 ns PIC16F54/57 only 67
Port output fall time, PIC16F54/57 TIOF 10 25 ns PIC16F54/57 only 67
MCLR Pulse Width (low) TMCL 2000 ns VDD = 5.0V 68
Watchdog Timer Time-out Period (No Prescaler) TWDT 9 18 30 ms VDD = 5.0V (industrial) 68
Device Reset Timer Period TDRT 9 18 30 ms VDD = 5.0V (industrial) 68
I/O high-impedance from MCLR Low TIOZ 100 300 2000 ns 68
T0CKI High Pulse Width Tt0H 10 ns With Prescaler 69
T0CKI Low Pulse Width Tt0L 10 ns With Prescaler 69
Ambient Temperature under bias -40 125 °C 59
Storage Temperature -65 150 °C 59
Voltage on VDD with respect to VSS VDD 0 6.5 V 59
Voltage on MCLR with respect to VSS 0 13.5 V 59
Voltage on all other pins with respect to VSS (max VDD + 0.6V) -0.6 V 59
Max. current out of VSS pin 150 mA 59
Max. current into VDD pin 100 mA 59
Max. current into an input pin (T0CKI only) -500 500 μA 59
Input clamp current IIK -20 20 mA VI < 0 or VI > VDD 59
Output clamp current IOK -20 20 mA VO < 0 or VO > VDD 59
Max. output current sourced by a single I/O port (PORTA, B or C) 50 mA 59
Max. output current sunk by a single I/O port (PORTA, B or C) 50 mA 59

CAD (KiCad official)

  • Symbol: PIC16F57-I
  • Footprint: Package_SO:SOIC-28W_7.5x17.9mm_P1.27mm
  • 3D model: SOIC-28-300mil (KiCad packages3D, STEP)
  • 3D model files: pic16f57-i-etched.step / pic16f57-i-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pic16f57-i.step / pic16f57-i.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (88 pp, sha256 9bbebc365e114e33, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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