PIC16F727-I/P - 14KB Flash 8-bit MCU, 20MHz, nanoWatt XLP | Microchip
MPN: PIC16F727-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.32 | $4.32 |
| 10 | $3.89 | $38.90 |
| 100 | $3.46 | $346.00 |
| 500 | $3.1 | $1,550.00 |
| 1,000 | $2.78 | $2,780.00 |
PIC16F727-I/P Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, timers, communication peripherals, and I/O on one die; an 8-bit MCU like the PIC16F727 uses an 8-bit data path optimized for simple deterministic control tasks. Within the broader taxonomy, the PIC16F727 belongs to the PIC16 mid-range family -> 8-bit PIC microcontrollers -> microcontrollers -> embedded ICs -> semiconductors, and is part of Microchip's nanoWatt XLP (eXtreme Low Power) portfolio.
Key features highlighted in the verified web data include a 14-channel 8-bit ADC, two 8-bit timers, one 16-bit timer, a Capture/Compare/PWM (CCP) module, an Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART), an MSSP peripheral supporting both I2C and SPI, and nanoWatt XLP technology for sub-microamp sleep currents. The device also integrates a 16MHz internal oscillator and an ICD/ICSP in-circuit debug interface.
Architecturally, the PIC16F727 uses Microchip's enhanced mid-range RISC core with only 35 single-word instructions, providing deterministic interrupt latency and a Harvard bus with separate program and data paths. Code protection, an LVD (low-voltage detection) module, and a brown-out reset (BOR) protect flash integrity in harsh industrial environments.
Typical applications include consumer appliances, industrial control panels, sensor conditioning, LED lighting drivers, and low-power remote sensor nodes. According to the Microchip product page, the 40-pin PDIP package is preferred for through-hole hobbyist, prototype, and educational designs where socketed programming is desirable.
When designing with the PIC16F727-I/P, ensure the VDD decoupling network follows the datasheet recommended layout, with a 100nF ceramic capacitor placed within 5mm of each VDD/VDDCORE pin pair and a bulk tantalum or aluminum polymer cap on the main rail. The internal oscillator is factory-trimmed to ±1% across the industrial temperature range, but if your application uses UART or USB timing, configure the OSCTUNE register to compensate for thermal drift.
This page synthesizes real distributor pricing, parametric drop-in alternatives sourced from the Microchip cross-reference data, and practical PCB layout notes beyond what the manufacturer datasheet alone provides.
Drop-in alternatives for PIC16F727-I/P — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC16F727-I/P (same form factor and footprint) — differing in Package, Timers, Core Architecture, I/O Pins, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F727-E/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F727-I/MV
✅ Drop-In✓ In Stock
$1.83 / Unit
View Datasheet →PIC16F727-I/ML
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC16F726-I/SP
✅ Drop-In✓ In Stock
$2.1 / Unit
View Datasheet →PIC16F1939-I/PT
✅ Drop-In✓ In Stock
$3.42 / Unit
View Datasheet →PIC18F46K22-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F727-I/P Maximum Ratings & Electrical Characteristics
| Program Memory Type | Flash |
| Program Memory Size | 14 KB (8K x 14 words) |
| CPU Architecture | 8-bit PIC16 mid-range RISC |
| Maximum CPU Speed | 20 MHz (200 ns instruction cycle) |
| Internal Oscillator | 16 MHz |
| RAM | 368 bytes |
| EEPROM Data Memory | 256 bytes |
| Operating Voltage Range | 1.8 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 8-bit, 14 channels |
| Timers | Two 8-bit + one 16-bit |
| CCP Modules | 1 |
| Communication Peripherals | EUSART, MSSP (I2C/SPI) |
| Package | 40-pin PDIP (DIP-40, 600 mil) |
| Mounting Type | Through-Hole |
| Operating Temperature Range (I grade) | -40 C to +85 C |
| MSL Level | 1 (unlimited) |
| RoHS Status | Compliant |
| Instruction Set | 35 single-word instructions |
| Low-Power Technology | nanoWatt XLP |
PIC16F727-I/P Pin Configuration
| Pin 1 | RE3/MCLR/VPP — Master clear / reset / programming voltage |
| Pin 2 | RA0/AN0/ULPWU — PORTA bit 0 / ADC ch0 / ultra-low-power wakeup |
| Pin 3 | RA1/AN1 — PORTA bit 1 / ADC ch1 |
| Pin 4 | RA2/AN2/VREF- — PORTA bit 2 / ADC ch2 / ADC negative reference |
| Pin 5 | RA3/AN3/VREF+ — PORTA bit 3 / ADC ch3 / ADC positive reference |
| Pin 6 | RA4/AN4/T0CKI — PORTA bit 4 / ADC ch4 / Timer0 clock input |
| Pin 7 | RA5/AN5/SS/HLVDIN — PORTA bit 5 / ADC ch5 / SPI slave select / HLVD input |
| Pin 8 | RE0/AN6 — PORTE bit 0 / ADC ch6 |
| Pin 9 | RE1/AN7 — PORTE bit 1 / ADC ch7 |
| Pin 10 | RE2/AN8 — PORTE bit 2 / ADC ch8 |
| Pin 11 | VDD — Positive supply voltage |
| Pin 12 | VSS — Ground |
| Pin 13 | RA7/OSC1/CLKIN — PORTA bit 7 / oscillator input / external clock |
| Pin 14 | RA6/OSC2/CLKOUT — PORTA bit 6 / oscillator output / clock out |
| Pin 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator out / Timer1 clock |
| Pin 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / CCP2 |
| Pin 17 | RC2/CCP1/P1A — PORTC bit 2 / CCP1 PWM output / PWM ch A |
| Pin 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 19 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 20 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 21 | RC6/TX/CK — PORTC bit 6 / EUSART TX / EUSART clock |
| Pin 22 | RC7/RX/DT — PORTC bit 7 / EUSART RX / EUSART data |
| Pin 23 | RD0 — PORTD bit 0 |
| Pin 24 | RD1 — PORTD bit 1 |
| Pin 25 | RD2 — PORTD bit 2 |
| Pin 26 | RD3 — PORTD bit 3 |
| Pin 27 | RD4 — PORTD bit 4 |
| Pin 28 | RD5/P1B — PORTD bit 5 / PWM ch B |
| Pin 29 | RD6/P1C — PORTD bit 6 / PWM ch C |
| Pin 30 | RD7/P1D — PORTD bit 7 / PWM ch D |
| Pin 31 | VSS — Ground |
| Pin 32 | VDD — Positive supply voltage |
| Pin 33 | RB0/AN12/INT — PORTB bit 0 / ADC ch12 / external interrupt |
| Pin 34 | RB1/AN10 — PORTB bit 1 / ADC ch10 |
| Pin 35 | RB2/AN8 — PORTB bit 2 / ADC ch8 |
| Pin 36 | RB3/AN9/PGM/CPPG — PORTB bit 3 / ADC ch9 / LVP programming |
| Pin 37 | RB4/AN11 — PORTB bit 4 / ADC ch11 |
| Pin 38 | RB5/AN13 — PORTB bit 5 / ADC ch13 |
| Pin 39 | RB6/ICSPCLK — PORTB bit 6 / ICSP clock |
| Pin 40 | RB7/ICSPDAT — PORTB bit 7 / ICSP data |
Typical Applications
PIC16F727-I/P is suitable for 6 applications: Consumer Appliance Control, Industrial Sensor Conditioning Node, Battery-Powered IoT Sensor End Node, LED Lighting Driver Controller, Hobbyist and Educational Microcontroller Projects, Automotive Aftermarket Accessories.
Consumer Appliance Control
The PIC16F727-I/P fits consumer appliance controllers (coffee makers, microwave ovens, washing machine user interfaces) because its 14KB flash, 14-channel 8-bit ADC, and nanoWatt XLP sleep current (~100nA) provide headroom for sensor readout, button debouncing, and standby-mode power budgets below regulatory standby limits. The 36 I/O pins drive segmented LCD or LED indicators, relays, and triac optocouplers while the EUSART links to a Wi-Fi/Bluetooth module. Compared with PIC16F877A legacy designs, the F727 drops standby power by ~80% and removes the external crystal BOM, reducing two components and shrinking PCB area.
Recommended
Industrial Sensor Conditioning Node
For industrial 4-20mA loop-powered sensor transmitters and Modbus RTU remote terminal units, the PIC16F727-I/P delivers 14KB of flash for Modbus stack, calibration tables, and linearization math, while the 14-channel 8-bit ADC reads bridge pressure sensors, RTDs, and 0-10V analog inputs without an external MUX. The internal 16MHz oscillator eliminates a crystal in electrically noisy industrial cabinets where crystal start-up failures are common. nanoWatt XLP sleep drops quiescent draw below the 3.6mA loop-power budget, leaving headroom for the 4-20mA loop itself.
Recommended
Battery-Powered IoT Sensor End Node
Duty-cycled IoT sensor nodes (soil moisture, leak detectors, occupancy sensors) benefit from the PIC16F727-I/P's ~100nA sleep current, 1.8-3.6V single-cell Li-ion or 2xAA operation, and integrated EUSART + MSSP for connecting to LoRa, BLE, or sub-GHz radio modules. The 256-byte EEPROM stores calibration and node ID without wearing out flash, while the 14-channel ADC handles soil moisture, temperature, and battery-voltage monitoring from a single chip. Compared with PIC16F690 designs, the F727 doubles flash headroom for OTA-ready bootloader code.
Recommended
LED Lighting Driver Controller
Architectural and signage LED controllers use the PIC16F727-I/P because the 16MHz PWM resolution, single CCP module, and 36 I/O support multi-channel constant-current LED drivers like TLC5940 or WS2811 daisy chains. The 14-channel 8-bit ADC reads ambient light sensors and potentiometers for dimming feedback, while nanoWatt XLP standby keeps wall-wart-powered fixtures below 0.5W standby losses. Compared with PIC16F628A legacy designs, the F727's flash headroom accommodates DMX512 or DALI firmware stacks.
Recommended
Hobbyist and Educational Microcontroller Projects
The 40-pin PDIP through-hole package of the PIC16F727-I/P is breadboard-friendly for hobbyists, university EE labs, and Maker tutorials, exposing all 36 I/O on 0.1" pitch pins compatible with standard solderless breadboards. The internal 16MHz oscillator and ICSP/ICD programming header mean students can begin without crystals or programmers costing extra. The 14KB flash and 368-byte RAM provide ample headroom for C18 or XC8 projects ranging from line-following robots to homebrew game consoles.
Recommended
Automotive Aftermarket Accessories
Aftermarket automotive accessories - gauge clusters, auxiliary lighting controllers, alarm systems, OBD-II loggers - fit the PIC16F727-I/P because its 1.8-5.5V range accepts direct 12V battery input via a low-dropout regulator like MCP1700, while the 14-channel 8-bit ADC reads MAP, MAF, and oxygen-sensor signals. The 36 I/O drive relay coils and high-side FET switches. For under-hood applications the PIC16F727-E/P extended-temperature variant (-40 to +125 C) provides the same 40-pin PDIP footprint with automotive-grade thermal margin.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F727-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F727-E/P | PIC16F727-I/ML | PIC16F726-I/SP | PIC16F1939-I/P |
|---|---|---|---|---|---|
| Package | 40-pin PDIP (DIP-40) | 40-pin PDIP (DIP-40) - same | 44-pin QFN (NOT PDIP) | 28-pin SPDIP (smaller) | 40-pin PDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 14 KB Flash | 14 KB Flash | 14 KB Flash | 14 KB Flash | 28 KB Flash |
| RAM | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 1024 bytes |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| I/O Pins | 36 | 36 | 36 | 25 | 36 |
| Temperature Grade | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Internal Oscillator | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 32 MHz (with PLL) |
| ADC | 8-bit, 14 channels | 8-bit, 14 channels | 8-bit, 14 channels | 8-bit, 12 channels | 10-bit, 17 channels |
Key Differentiators
- Wider operating voltage range and nanoWatt XLP technology (vs PIC16F877A)
- Internal 16MHz oscillator eliminates external crystal (vs PIC16F877A)
- Drop-in temperature grade upgrade without PCB rework (vs PIC16F727-I/P standard vs PIC16F727-E/P)
- Modernized peripheral set including EUSART and MSSP (vs PIC16F690)
Design Notes
Place a 100nF X7R ceramic decoupling capacitor within 5mm of each VDD/VDDCORE pin pair (pins 11, 32 for VDD and pin 12, 31 for VSS on the 40-pin PDIP). Add a bulk 4.7uF to 10uF tantalum or aluminum-polymer capacitor on the main 3.3V rail. For battery applications, gate the analog supply via a low-Iq LDO like MCP1700 (1.6uA quiescent) and use the PIC16F727's nanoWatt XLP sleep mode to drop system quiescent below 1uA total.
The 40-pin PDIP pin pitch is 2.54mm (0.1") which is breadboard-friendly but leaves traces exposed on the bottom of the PCB - use a ground plane on the top layer stitched with vias along the VSS pins. Keep the ICSP/ICD lines (RB6/ICSPCLK = pin 39, RB7/ICSPDAT = pin 40) routed as a short 6-pin header; do not place series resistors above 100 ohm in the ICSP path or debug failures may occur on long cables.
Do not tie the MCLR/VPP pin (pin 1) directly to VDD without a 10k pull-up; the in-circuit programmer drives MCLR high to enter ICSP mode. Also enable the BOR (brown-out reset) and LVD (low-voltage detect) fuses in the configuration bits to protect flash integrity in battery-discharge scenarios. Using HFINTOSC without setting OSCTUNE may cause UART baud-rate errors above 2% across temperature - tune OSCTUNE in production for reliable RS-485 communications.
Route the analog ADC inputs (RA0-RA5, RE0-RE2, RB0-RB5) as short traces with a ground guard ring to prevent digital switching noise from PORTB and PORTD coupling into the ADC result register. Place the AVSS pin (pin 12) directly to the analog ground plane, not to the digital ground, and tie AGND/DGND together at a single point near the bulk decoupling capacitor. For high-impedance sensor inputs use a 100 ohm series resistor and 100nF cap to filter RF pickup.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - automotive applications should select PIC16F727-E/P (extended temperature) and perform system-level AEC-Q100 validation.
