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Microchip Technology PIC16F1503-I/MG — Microcontrollers & Processors (MCU / MPU / DSP)

PIC16F1503-I/MG 8-bit MCU, 20 MHz, 3.5 KB Flash, 16-QFN

MPNPIC16F1503-I/MG
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Microchip PIC® 16F PIC16F1503-I/MG, 8-bit MCU, 20 MHz, 3.5 KB (2K x 14) Flash, 128 x 8 RAM, 8-ch 10-bit ADC, I²C/SPI, 2.3-5.5 V, -40 to 85 °C, 16-QFN (3x3 mm).

$1.2100Ref. price · indicative, final on quote
Microchip Technology PIC16F1503-I/MG datasheet (PDF)
Packaging16-VFQFN Exposed Pad
RoHSROHS3 Compliant
SeriesPIC® 16F, Functional Safety (FuSa)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

PIC16F1503-I/MG specifications
ParameterValue
SeriesPIC® 16F, Functional Safety (FuSa)
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.3V ~ 5.5V
Operating temperature-40°C~85°C(TA)
Speed20MHz
PackageTube
RAM size128 x 8
Core size8-Bit
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, SPI
Number of i (O)11
Core processorPIC
Case16-VFQFN Exposed Pad
Data convertersA/D 8x10b
Program memory size3.5KB (2K x 14)

Product details

20 MHz 8-bit PIC with 3.5 KB Flash — what fits in that memory envelope

The Microchip PIC16F1503-I/MG is an 8-bit PIC MCU running at 20 MHz with 3.5 KB (2K x 14) of Flash program memory and 128 bytes of RAM. It belongs to the PIC® 16F series with Functional Safety (FuSa) support, targeting cost-sensitive embedded control where the firmware stays under 2K instructions. The 128-byte RAM ceiling means the application must manage variables tightly — no dynamic allocation, no large buffers — so this part fits best in state-machine or lookup-table designs rather than data-logging or protocol-heavy tasks.

8-channel 10-bit ADC and serial connectivity

An integrated 8-channel 10-bit ADC covers basic analog sensing — temperature, voltage, current — without an external converter. The I²C and SPI interfaces handle sensor readout, small displays, or serial EEPROM.

Frequently asked questions

Does PIC16F1503-I/MG have an integrated ADC?

Yes, it integrates an 8-channel 10-bit analog-to-digital converter, suitable for reading sensors or monitoring analog voltages without an external ADC chip.

Can PIC16F1503-I/MG be used with I2C or SPI?

Yes, the MCU includes both I²C and SPI connectivity, supporting common serial peripherals like temperature sensors, EEPROMs, and small displays.

Is PIC16F1503-I/MG RoHS compliant?

Yes, it is ROHS3 compliant, meeting the latest EU RoHS directive requirements.

What is the equivalent or alternative for PIC16F1503-I/MG?

A close functional alternative within the same 8-bit PIC family is the PIC16LF1559-I/SS, which offers 32 MHz speed, 17 I/Os, and UART/USART in addition to I²C/SPI, but in a larger SSOP package and with a lower 1.8 V minimum supply. The PIC16F1503-I/MG is the denser-package, lower-I/O option for space-constrained designs.