# PIC16F1503T-I

**Microchip Tech** · Microcontrollers (MCU/MPU/SOC) · SOIC-14

PIC16F1503T-I from Microchip Tech, in a SOIC-14. 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 | VDD | power_in | Positive supply; operating range is 2.3V to 5.5V for PIC16F1503 (1.8V to 3.6V for PIC16LF1503). |
| 2 | RA5 | bidirectional | PORTA general purpose I/O (TTL input, CMOS output); also CLKIN external clock input in EC mode, T1CKI, NCO1CLK and CLC1IN1. |
| 3 | RA4 | bidirectional | PORTA general purpose I/O (TTL input, CMOS output); also AN3, NCO1, SDO, CLKOUT (FOSC/4) and T1G. |
| 4 | RA3 | input | Input-only general purpose pin; also MCLR (Master Clear with internal pull-up), VPP programming voltage and CLC1IN0, T1G, SS. |
| 5 | RC5 | bidirectional | PORTC general purpose I/O (TTL input, CMOS output); also PWM1, CLC1 output and CWG1A primary output. |
| 6 | RC4 | bidirectional | PORTC general purpose I/O (TTL input, CMOS output); also C2OUT, CLC2IN1 and CWG1B complementary output. |
| 7 | RC3 | bidirectional | PORTC general purpose I/O (TTL input, CMOS output); also AN7, C1IN3-, C2IN3-, PWM2, CLC2IN0 and SS. |
| 8 | RC2 | bidirectional | PORTC general purpose I/O (TTL input, CMOS output); also AN6, C1IN2-, C2IN2- and SDO. |
| 9 | RC1 | bidirectional | PORTC general purpose I/O (TTL input, CMOS output); also AN5, C1IN1-, C2IN1-, PWM4, NCO1, SDA and SDI. |
| 10 | RC0 | bidirectional | PORTC general purpose I/O (TTL input, CMOS output); also AN4, C2IN+, CLC2, SCL and SCK. |
| 11 | RA2 | bidirectional | PORTA general purpose I/O (Schmitt trigger input, CMOS output); also AN2, C1OUT, DACOUT2, T0CKI, INT, PWM3, CLC1 output and CWG1FLT fault input. |
| 12 | RA1 | bidirectional | PORTA general purpose I/O (TTL input, CMOS output); also AN1, VREF+, C1IN0-, C2IN0- and ICSPCLK serial programming clock. |
| 13 | RA0 | bidirectional | PORTA general purpose I/O (TTL input, CMOS output); also AN0, C1IN+, DACOUT1 and ICSPDAT serial programming data I/O. |
| 14 | VSS | power_in | Ground reference for the device. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOIC-14 |
| Category | Embedded Processors & Controllers |
| Pins | 14 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Ambient temperature under bias |  | -40 |  | 125 | °C |  | 265 |
| Storage temperature |  | -65 |  | 150 | °C |  | 265 |
| Voltage on VDD pin with respect to VSS | VDD | -0.3 |  | 6.5 | V | PIC16F1503 | 265 |
| Voltage on MCLR pin with respect to VSS |  | -0.3 |  | 9 | V |  | 265 |
| Voltage on all other pins with respect to VSS |  | -0.3 |  |  | V | max printed as VDD + 0.3 V | 265 |
| Maximum current on VSS pin |  |  |  | 250 | mA | -40°C ≤ TA ≤ +85°C | 265 |
| Maximum current on VSS pin |  |  |  | 85 | mA | +85°C ≤ TA ≤ +125°C | 265 |
| Maximum current on VDD pin |  |  |  | 250 | mA | -40°C ≤ TA ≤ +85°C | 265 |
| Maximum current on VDD pin |  |  |  | 85 | mA | +85°C ≤ TA ≤ +125°C | 265 |
| Current sunk by any standard I/O pin | IOL |  |  | 50 | mA |  | 265 |
| Current sourced by any standard I/O pin | IOH |  |  | 50 | mA |  | 265 |
| Clamp current | IK |  |  | 20 | mA | VPIN < 0 or VPIN > VDD | 265 |
| Operating ambient temperature range, industrial | TA | -40 |  | 85 | °C | Industrial temperature | 266 |
| Supply voltage VDD | VDD | 2.3 |  | 5.5 | V | FOSC ≤ 16 MHz | 268 |
| Supply voltage VDD | VDD | 2.5 |  | 5.5 | V | FOSC ≤ 20 MHz | 268 |
| RAM data retention voltage | VDR | 1.7 |  |  | V | Device in Sleep mode | 268 |
| VDD rise rate | SVDD | 0.05 |  |  | V/ms | Ensures that the Power-on Reset signal is released properly | 268 |
| Fixed voltage reference voltage, 1x gain (1.024 V nominal) | VFVR | -4 |  | 4 | % | VDD ≥ 2.5V, -40°C ≤ TA ≤ +85°C | 268 |
| Fixed voltage reference voltage, 2x gain (2.048 V nominal) | VFVR | -3 |  | 7 | % | VDD ≥ 2.5V, -40°C ≤ TA ≤ +85°C | 268 |
| Supply current IDD, ECM 1 MHz, Medium Power mode | IDD |  | 65 | 110 | µA | FOSC = 1 MHz, External Clock (ECM), Medium Power mode; VDD 2.3 V | 270 |
| Supply current IDD, ECM 1 MHz, Medium Power mode | IDD |  | 85 | 140 | µA | FOSC = 1 MHz, External Clock (ECM), Medium Power mode; VDD 3.0 V | 270 |
| Supply current IDD, ECM 1 MHz, Medium Power mode | IDD |  | 115 | 190 | µA | FOSC = 1 MHz, External Clock (ECM), Medium Power mode; VDD 5.0 V | 270 |
| Supply current IDD, ECM 4 MHz, Medium Power mode | IDD |  | 180 | 270 | µA | FOSC = 4 MHz, External Clock (ECM), Medium Power mode; VDD 2.3 V | 270 |
| Supply current IDD, ECM 4 MHz, Medium Power mode | IDD |  | 240 | 365 | µA | FOSC = 4 MHz, External Clock (ECM), Medium Power mode; VDD 3.0 V | 270 |
| Supply current IDD, ECM 4 MHz, Medium Power mode | IDD |  | 295 | 460 | µA | FOSC = 4 MHz, External Clock (ECM), Medium Power mode; VDD 5.0 V | 270 |
| Supply current IDD, LFINTOSC 31 kHz | IDD |  | 13 | 28 | µA | FOSC = 31 kHz, LFINTOSC, -40°C ≤ TA ≤ +85°C; VDD 2.3 V | 270 |
| Supply current IDD, LFINTOSC 31 kHz | IDD |  | 15 | 30 | µA | FOSC = 31 kHz, LFINTOSC, -40°C ≤ TA ≤ +85°C; VDD 3.0 V | 270 |
| Supply current IDD, LFINTOSC 31 kHz | IDD |  | 17 | 36 | µA | FOSC = 31 kHz, LFINTOSC, -40°C ≤ TA ≤ +85°C; VDD 5.0 V | 270 |
| Supply current IDD, HFINTOSC 500 kHz | IDD |  | 270 | 450 | µA | FOSC = 500 kHz, HFINTOSC; VDD 2.3 V | 270 |
| Supply current IDD, HFINTOSC 500 kHz | IDD |  | 300 | 500 | µA | FOSC = 500 kHz, HFINTOSC; VDD 3.0 V | 270 |
| Supply current IDD, HFINTOSC 500 kHz | IDD |  | 350 | 620 | µA | FOSC = 500 kHz, HFINTOSC; VDD 5.0 V | 270 |
| Supply current IDD, HFINTOSC 8 MHz | IDD |  | 530 | 750 | µA | FOSC = 8 MHz, HFINTOSC; VDD 2.3 V | 270 |
| Supply current IDD, HFINTOSC 8 MHz | IDD |  | 660 | 1100 | µA | FOSC = 8 MHz, HFINTOSC; VDD 3.0 V | 270 |
| Supply current IDD, HFINTOSC 8 MHz | IDD |  | 730 | 1200 | µA | FOSC = 8 MHz, HFINTOSC; VDD 5.0 V | 270 |
| Supply current IDD, HFINTOSC 16 MHz | IDD |  | 780 | 1200 | µA | FOSC = 16 MHz, HFINTOSC; VDD 2.3 V | 270 |
| Supply current IDD, HFINTOSC 16 MHz | IDD |  | 1000 | 1550 | µA | FOSC = 16 MHz, HFINTOSC; VDD 3.0 V | 270 |
| Supply current IDD, HFINTOSC 16 MHz | IDD |  | 1090 | 1700 | µA | FOSC = 16 MHz, HFINTOSC; VDD 5.0 V | 270 |
| Supply current IDD, ECH 20 MHz, High-Power mode | IDD |  | 1060 | 1600 | µA | FOSC = 20 MHz, External Clock (ECH), High-Power mode; VDD 3.0 V | 271 |
| Supply current IDD, ECH 20 MHz, High-Power mode | IDD |  | 1220 | 1800 | µA | FOSC = 20 MHz, External Clock (ECH), High-Power mode; VDD 5.0 V | 271 |
| Supply current IDD, ECL 32 kHz, Low-Power mode | IDD |  | 13 | 28 | µA | FOSC = 32 kHz, External Clock (ECL), Low-Power mode; VDD 2.3 V | 271 |
| Supply current IDD, ECL 32 kHz, Low-Power mode | IDD |  | 15 | 31 | µA | FOSC = 32 kHz, External Clock (ECL), Low-Power mode; VDD 3.0 V | 271 |
| Supply current IDD, ECL 32 kHz, Low-Power mode | IDD |  | 16 | 36 | µA | FOSC = 32 kHz, External Clock (ECL), Low-Power mode; VDD 5.0 V | 271 |
| Supply current IDD, ECL 500 kHz, Low-Power mode | IDD |  | 31 | 52 | µA | FOSC = 500 kHz, External Clock (ECL), Low-Power mode; VDD 2.3 V | 271 |
| Supply current IDD, ECL 500 kHz, Low-Power mode | IDD |  | 38 | 65 | µA | FOSC = 500 kHz, External Clock (ECL), Low-Power mode; VDD 3.0 V | 271 |
| Supply current IDD, ECL 500 kHz, Low-Power mode | IDD |  | 44 | 74 | µA | FOSC = 500 kHz, External Clock (ECL), Low-Power mode; VDD 5.0 V | 271 |
| Base IPD, Low-Power Sleep mode, max at +85°C | IPD |  | 0.3 | 4 | µA | VDD 3.0 V; WDT, BOR, FVR and SOSC disabled, all peripherals inactive, Low-Power Sleep mode; max at +85°C | 272 |
| Base IPD, Low-Power Sleep mode, max at +125°C | IPD |  | 0.3 | 12 | µA | VDD 3.0 V; WDT, BOR, FVR and SOSC disabled, all peripherals inactive, Low-Power Sleep mode; max at +125°C | 272 |
| Input low voltage, I/O port with Schmitt Trigger buffer | VIL |  |  | 0.2 | ×VDD | 2.0V ≤ VDD ≤ 5.5V | 274 |
| Input high voltage, I/O port with Schmitt Trigger buffer | VIH | 0.8 |  |  | ×VDD | 2.0V ≤ VDD ≤ 5.5V | 274 |
| Output low voltage, I/O ports | VOL |  |  | 0.6 | V | IOL = 8 mA, VDD = 5V; IOL = 6 mA, VDD = 3.3V; IOL = 1.8 mA, VDD = 1.8V | 274 |
| Weak pull-up current, I/O ports | IPUR | 25 | 100 | 200 | µA | VDD = 3.3V, VPIN = VSS | 274 |
| Weak pull-up current, I/O ports | IPUR | 25 | 140 | 300 | µA | VDD = 5.0V, VPIN = VSS | 274 |
| MCLR input leakage current | IIL | -200 |  | 200 | nA | VSS ≤ VPIN ≤ VDD, pin at high-impedance, 85°C | 274 |
| MCLR input high voltage | VIH | 0.8 |  |  | ×VDD |  | 274 |
| Recommended impedance of analog voltage source | ZAIN |  |  | 10 | kΩ | Can go higher if external 0.01µF capacitor is present on input pin | 284 |
| Capacitive loading on all I/O pins | CIO |  |  | 50 | pF |  | 274 |
| Maximum junction temperature | TJMAX |  |  | 150 | °C |  | 275 |
| Thermal resistance junction to ambient, 14-pin SOIC | JA |  | 95.3 |  | °C/W | 14-pin SOIC package | 275 |
| Thermal resistance junction to case, 14-pin SOIC | JC |  | 31 |  | °C/W | 14-pin SOIC package | 275 |

## CAD (KiCad official)

- Symbol: `PIC16F1503T-I`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files: `pic16f1503t-i-etched.step` / `pic16f1503t-i-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pic16f1503t-i.step` / `pic16f1503t-i.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Microchip Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586179471515275264) (352 pp, sha256 `3f6639e534c0589b`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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](docs/pic16f1503t-i-datasheet.pdf)