PIC16F727-I/ML - 8-Bit 20MHz 14KB Flash MCU | Microchip | 44-QFN
MPN: PIC16F727-I/ML β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.1 | $31.00 |
| 100 | $2.79 | $279.00 |
| 500 | $2.45 | $1,225.00 |
| 1,000 | $2.18 | $2,180.00 |
PIC16F727-I/ML Overview
A microcontroller (MCU) is a single-chip computer containing a CPU, non-volatile program memory (Flash/ROM), volatile working memory (RAM), peripherals, and I/O. The 8-bit class (PIC16F, AVR, 8051, STM8) targets cost-sensitive applications where 32-bit performance is unnecessary - typical uses include appliance control, sensor hubs, motor drivers, and capacitive touch user interfaces. Within Microchip's portfolio, the PIC16F727 sits in the mid-range PIC16 family (35 single-word instructions, 200ns instruction time), positioned above baseline PIC10/12/16 and below enhanced mid-range PIC16F1xxx and 16-bit PIC24/dsPIC devices.
Key specifications include 36 digital I/O pins, 14 ADC channels (10-bit, 8.5-bit, or 5-bit selectable resolution), 2 comparators, 2 8-bit timers plus 1 16-bit timer, 1 CCP/ECCP module, an EUSART with LIN support, an MSSP module for SPI/I2C, and an internal 16MHz oscillator. The wide 2.5V to 5.5V supply range covers both 3.3V and 5V rails commonly seen in industrial and consumer products. XLP sleep current of approximately 20 nA (typical) enables multi-year battery life on coin cells.
The PIC16F727 architecture uses a Harvard RISC core with separate program and data buses, executing one instruction per 200ns cycle (at 20MHz). The 14-bit instruction word packs a wide opcode space, supporting literal, bit, byte, and control operations in a single cycle. The integrated capacitive-touch mTouch sensing block provides a noise-robust solution for buttons, sliders, and proximity detection without external touch ICs. On-chip peripherals are mapped to I/O pins via Peripheral Pin Select (PPS)-like flexible routing on related family members; on this device, fixed-function pin mapping is used for simplicity.
Typical applications include home-appliance user interfaces (touch buttons on washing machines, induction cookers), battery-powered sensor nodes, LED lighting controllers, small motor control (fans, BLDC drivers), HVAC thermostats, and remote controls. The wide operating temperature range (-40C to +85C for the -I industrial grade) suits both indoor consumer products and outdoor industrial enclosures.
When designing with the PIC16F727-I/ML, allocate a 4-layer or 2-layer PCB ground pour under the exposed thermal pad (EP) of the QFN-44 to keep junction temperature within the -40C to +85C industrial window at full 20MHz operation. Always program configuration bits (FOSC, WDTE, BOREN, LVP) explicitly; leaving them in default erased states can cause debug-tool-only or out-of-spec behavior in production.
Drop-in alternatives for PIC16F727-I/ML β 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/ML (same form factor and footprint) β differing in Package, ADC, Communication, Internal Oscillator, Operating Temperature.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16F727T-I/ML
β Drop-Inπ Reference alternative (not in catalog)
PIC16F727-I/PT
β Drop-Inπ Reference alternative (not in catalog)
PIC16F727-E/ML
β Drop-Inβ In Stock
$1.62 / Unit
View Datasheet βPIC16F727T-I/PT
β Drop-Inβ In Stock
$2.15 / Unit
View Datasheet βPIC16F724-I/ML
β Drop-Inπ Reference alternative (not in catalog)
PIC16F723A-I/ML
β Drop-Inβ In Stock
$1.41 / Unit
View Datasheet βPIC16F722A-I/ML
β Drop-Inπ Reference alternative (not in catalog)
PIC16LF727-I/ML
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
PIC16F727-I/ML Maximum Ratings & Electrical Characteristics
| Core | PIC16 8-bit RISC (mid-range, 35 instructions) |
| Maximum CPU Frequency | 20 MHz (200 ns instruction cycle) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data EEPROM | 256 bytes |
| Data SRAM | 368 bytes |
| Operating Voltage Range | 2.5 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 14 channels, 10/8.5/5-bit selectable resolution |
| Comparators | 2 |
| Timers | 2 x 8-bit, 1 x 16-bit |
| Capture/Compare/PWM | 1 CCP + 1 ECCP module |
| Communication | EUSART (LIN-capable), MSSP (SPI / I2C) |
| Capacitive Touch | mTouch peripheral |
| Low-Power Technology | nanoWatt XLP (sleep ~20 nA typical) |
| Operating Temperature Range | -40 C to +85 C (industrial grade -I) |
| Package | 44-pin QFN (8 mm x 8 mm, 0.5 mm pitch) with EP |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Internal Oscillator | 16 MHz (calibrated, software-selectable) |
PIC16F727-I/ML Pin Configuration
| Pin 1 | RA0/AN0/C1IN+/INT0 β PORTA bit 0 / ADC channel 0 / Comparator 1 positive input / External interrupt 0 |
| Pin 2 | RA1/AN1/C1IN-/INT1 β PORTA bit 1 / ADC channel 1 / Comparator 1 negative input / External interrupt 1 |
| Pin 3 | RA2/AN2/C2IN+/VREF- β PORTA bit 2 / ADC channel 2 / Comparator 2 positive input / Voltage reference negative |
| Pin 4 | RA3/AN3/C1OUT/VREF+ β PORTA bit 3 / ADC channel 3 / Comparator 1 output / Voltage reference positive |
| Pin 5 | RA4/AN4/C2OUT/T0CKI β PORTA bit 4 / ADC channel 4 / Comparator 2 output / Timer 0 clock input |
| Pin 6 | RA5/AN5/SS/HLVDIN β PORTA bit 5 / ADC channel 5 / SPI slave select / High/Low-Voltage detect input |
| Pin 7 | RA6/OSC2/CLKO β PORTA bit 6 / Crystal oscillator output / Clock output |
| Pin 8 | RA7/OSC1/CLKI β PORTA bit 7 / Crystal oscillator input / Clock input |
| Pin 9 | VSS β Ground reference |
| Pin 10 | VDD β Positive supply voltage (2.5 V to 5.5 V) |
| Pin 11 | RB0/AN12/C0IN+/CCP1 β PORTB bit 0 / ADC channel 12 / Comparator 0 positive input / CCP1 input/output |
| Pin 12 | RB1/AN10/C1IN-/P1B β PORTB bit 1 / ADC channel 10 / Comparator 1 negative input / PWM output P1B |
| Pin 13 | RB2/AN8/C2IN-/P1A β PORTB bit 2 / ADC channel 8 / Comparator 2 negative input / PWM output P1A |
| Pin 14 | RB3/AN9/C1OUT/P1D β PORTB bit 3 / ADC channel 9 / Comparator 1 output / PWM output P1D |
| Pin 15 | RB4/AN11/P1C/SDA β PORTB bit 4 / ADC channel 11 / PWM output P1C / I2C data |
| Pin 16 | RB5/AN13/T1G/SCK/SCL β PORTB bit 5 / ADC channel 13 / Timer 1 gate / SPI clock / I2C clock |
| Pin 17 | RB6/PGC/ICSPCLK β PORTB bit 6 / ICSP clock / Programming clock |
| Pin 18 | RB7/PGD/ICSPDAT β PORTB bit 7 / ICSP data / Programming data |
| Pin 19 | RC0/T1OSO/T1CKI β PORTC bit 0 / Timer 1 oscillator output / Timer 1 clock input |
| Pin 20 | RC1/T1OSI/CCP2 β PORTC bit 1 / Timer 1 oscillator input / CCP2 input/output |
| Pin 21 | RC2/AN6/P2A/CCP1 β PORTC bit 2 / ADC channel 6 / PWM output P2A / CCP1 |
| Pin 22 | RC3/AN7/P2B/C2OUT β PORTC bit 3 / ADC channel 7 / PWM output P2B / Comparator 2 output |
| Pin 23 | RC4/AN14/C2OUT/T0CKI β PORTC bit 4 / ADC channel 14 / Comparator 2 output / Timer 0 clock input |
| Pin 24 | RC5/AN15/C1OUT/T0CKI β PORTC bit 5 / ADC channel 15 / Comparator 1 output / Timer 0 clock input |
| Pin 25 | RC6/AN16/SS/TX/CK β PORTC bit 6 / ADC channel 16 / SPI slave select / EUSART TX / EUSART clock |
| Pin 26 | RC7/AN17/SDI/RX/DT β PORTC bit 7 / ADC channel 17 / SPI data in / EUSART RX / EUSART data |
| Pin 27 | RE3/MCLR/VPP β PORTE bit 3 / Master clear (reset) input / Programming voltage |
| Pin 28 | RD0/AN20/C2IN+/INT2 β PORTD bit 0 / ADC channel 20 / Comparator 2 positive input / External interrupt 2 |
| Pin 29 | RD1/AN21/C1IN-/INT3 β PORTD bit 1 / ADC channel 21 / Comparator 1 negative input / External interrupt 3 |
| Pin 30 | RD2/AN22/P2D/C2IN- β PORTD bit 2 / ADC channel 22 / PWM output P2D / Comparator 2 negative input |
| Pin 31 | RD3/AN23/P2C/C1IN+ β PORTD bit 3 / ADC channel 23 / PWM output P2C / Comparator 1 positive input |
| Pin 32 | RD4/AN24/ECCP1/P1B β PORTD bit 4 / ADC channel 24 / Enhanced CCP1 / PWM output P1B |
| Pin 33 | RD5/AN25/P1C/CCP2 β PORTD bit 5 / ADC channel 25 / PWM output P1C / CCP2 |
| Pin 34 | RD6/AN26/TX/CK β PORTD bit 6 / ADC channel 26 / EUSART TX / EUSART clock |
| Pin 35 | RD7/AN27/RX/DT β PORTD bit 7 / ADC channel 27 / EUSART RX / EUSART data |
| Pin 36 | VSS β Ground reference |
| Pin 37 | VDD β Positive supply voltage (2.5 V to 5.5 V) |
| Pin 38 | RE0/AN5 β PORTE bit 0 / ADC channel 5 |
| Pin 39 | RE1/AN6 β PORTE bit 1 / ADC channel 6 |
| Pin 40 | RE2/AN7 β PORTE bit 2 / ADC channel 7 |
| Pin 41 | RF0/AN16 β PORTF bit 0 / ADC channel 16 |
| Pin 42 | RF1/AN17 β PORTF bit 1 / ADC channel 17 |
| Pin 43 | RF2/AN18 β PORTF bit 2 / ADC channel 18 |
| Pin 44 | RF3/AN19 β PORTF bit 3 / ADC channel 19 |
| Pin 45 | EP β Exposed thermal pad - must be soldered to PCB ground plane for thermal dissipation |
Typical Applications
PIC16F727-I/ML is suitable for 7 applications: Home-Appliance Touch User Interface, Battery-Powered Wireless Sensor Node, LED Lighting Controller with Dimming, HVAC Thermostat and Climate Controller, Small BLDC / DC Motor Control, Industrial Sensor Hub and Remote I/O, Consumer Remote Control and HMI.
Home-Appliance Touch User Interface
The PIC16F727-I/ML fits home-appliance touch UIs because its integrated mTouch peripheral supports up to 14 capacitive-touch channels and the 14-channel 10-bit ADC handles temperature and humidity sensing without external ICs. Its 14 KB Flash and 368 B RAM comfortably fit a UI state machine plus a touch-detection algorithm with debouncing. The 2.5-5.5 V supply range accepts both 3.3 V and 5 V rail designs typical in washing machines, induction cookers, and ovens. Compared with external touch ICs, the PIC16F727-I/ML cuts BOM by 1-2 USD per board and reduces PCB area, while XLP sleep at ~20 nA enables standby power below 0.5 W per IEC 62301.
Recommended
Battery-Powered Wireless Sensor Node
The PIC16F727-I/ML suits battery-powered sensor nodes because its nanoWatt XLP technology draws approximately 20 nA in sleep mode, enabling multi-year life from a CR2032 coin cell. The 14-channel 10-bit ADC covers temperature, light, humidity, and battery-voltage monitoring on a single die, eliminating external analog muxes. Its 2.5-5.5 V supply is fully compatible with single-cell Li-ion or 2xAA alkaline chemistries. Combined with a sub-GHz radio module (e.g. MRF89XA or SX1276), the PIC16F727-I/ML forms a complete wireless sensor node with periodic-wake, measure, transmit, sleep duty cycling that achieves 5+ year battery life.
Recommended
LED Lighting Controller with Dimming
The PIC16F727-I/ML fits LED lighting controllers because its ECCP (Enhanced Capture/Compare/PWM) module generates high-resolution PWM for smooth 16-bit dimming, while the 20 MHz core allows flicker-free transitions and color-mixing math at update rates above 1 kHz. The 14 ADC channels read ambient-light sensors, color sensors, and potentiometers for closed-loop brightness control. Its 36 I/O pins drive multiple LED channels plus DMX512 or DALI communication interfaces. The wide 2.5-5.5 V range suits both 3.3 V logic-level designs and 5 V analog dimming inputs common in architectural lighting.
Recommended
HVAC Thermostat and Climate Controller
The PIC16F727-I/ML is ideal for HVAC thermostats because its 14 ADC channels handle temperature, humidity, setpoint potentiometer, and indoor-air-quality sensors simultaneously, and its 36 I/O pins drive LCD displays, relays, TRIAC controls, and HVAC communication buses. The 14 KB Flash accommodates multi-stage thermostat algorithms, scheduling, and adaptive learning features. The industrial -40C to +85C operating range covers both indoor living-space and outdoor-air-temperature sensing. XLP sleep reduces standby power below 0.5 W, supporting Energy Star and EU Ecodesign standby regulations.
Recommended
Small BLDC / DC Motor Control
The PIC16F727-I/ML handles small motor-control applications because its ECCP module generates complementary PWM outputs with programmable dead-time insertion for half-bridge drivers, and the 20 MHz instruction rate supports field-oriented control loops for low-RPM fans and pumps. The two on-chip comparators provide hardware over-current protection with sub-microsecond shutdown latency. The 2.5-5.5 V supply and 36 I/O pins accommodate Hall-sensor input, quadrature decode, and direction-logic outputs without external glue logic. Compared with discrete MCU+gate-driver solutions, the integrated approach saves 30-50% PCB area in ceiling-fan and appliance-pump designs.
Recommended
Industrial Sensor Hub and Remote I/O
The PIC16F727-I/ML is well suited for industrial sensor hubs because its EUSART (LIN-capable) and MSSP (SPI/I2C) peripherals support multiple industrial protocols including LIN bus for automotive sub-networks and Modbus RTU over RS-485 for industrial sensor networks. Its 14 KB Flash and 368 B RAM handle sensor linearization, calibration tables, and protocol stacks. The -40C to +85 C industrial operating range is suitable for outdoor enclosures and factory-floor deployments. Built-in mTouch supports local panel buttons for installer configuration, reducing the need for external HMI components.
Recommended
Consumer Remote Control and HMI
The PIC16F727-I/ML fits consumer remote controls because its nanoWatt XLP technology delivers months-to-years of battery life from a single AAA cell, and its mTouch peripheral allows modern capacitive-touch buttons instead of mechanical switches. The 14 ADC channels read battery voltage, IR-sensor levels, and multiple touch pads. Its 20 MHz core supports IR protocol encoding (RC5, NEC, SIRC) and Bluetooth Low Energy command bridging via an external module. The 2.5-5.5 V supply range matches 2xAAA alkaline, single-cell Li-ion, or CR2032 coin-cell designs common in handheld controllers.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F727-I/ML β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F727T-I/ML | PIC16F727-I/PT | PIC16F727-E/ML | PIC16F724-I/ML | PIC16F723A-I/ML | PIC16LF727-I/ML |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8 mm) with EP | 44-QFN (8x8 mm) - same | 44-TQFP (10x10 mm) - different footprint | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same |
| Program Memory (Flash) | 14 KB | 14 KB | 14 KB | 14 KB | 7 KB | 7 KB | 14 KB |
| Data SRAM | 368 B | 368 B | 368 B | 368 B | 192 B | 192 B | 368 B |
| Data EEPROM | 256 B | 256 B | 256 B | 256 B | 128 B | 128 B | 256 B |
| Operating Voltage Range | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 1.8 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial -I) | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C (Extended -E) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| I/O Pins / ADC Channels | 36 I/O / 14 ADC | 36 I/O / 14 ADC | 36 I/O / 14 ADC | 36 I/O / 14 ADC | 36 I/O / 14 ADC | 36 I/O / 14 ADC | 36 I/O / 14 ADC |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
Key Differentiators
- Largest Flash in the PIC16F72x family with same 44-QFN footprint (vs PIC16F724-I/ML)
- Integrated mTouch capacitive-touch peripheral (vs PIC16F722A-I/ML)
- Standard 2.5-5.5 V supply matches both 3.3 V and 5 V rails (vs PIC16LF727-I/ML)
- Wide industrial -40C to +85C operating temperature (vs Generic 8-bit MCUs from competing vendors)
Design Notes
The 44-QFN package has an exposed thermal pad (pin 45 / EP) that MUST be soldered to a PCB ground plane to keep junction temperature within the -40C to +85C industrial window at full 20MHz operation. Per Microchip's package drawing, recommend a minimum 4-layer PCB with the EP tied to an inner ground plane through 9-13 thermal vias (0.3mm drill, 0.5mm pitch). Single-layer or 2-layer designs without a substantial EP copper pour will exhibit elevated junction temperature at high ambient and may fail at upper temperature limits.
Place the 0.1 uF VDD decoupling capacitor within 3 mm of every VDD/VDDx pin, plus a 10 uF bulk capacitor near the supply entry. For 44-QFN designs, prioritize placing a 100 nF cap on pin 10 (VDD) and pin 37 (VDD). For mixed-signal designs using the ADC, separate analog and digital VDD planes with a single-point connection to avoid digital switching noise coupling into analog conversions.
Always program configuration bits (FOSC, WDTE, BOREN, LVP, CPD, CP) explicitly in your source code using __CONFIG directives. Leaving configuration bits in default erased states can cause debug-tool-only behavior in production. Use the ICD 3 or PICkit 4 programmer to verify configuration words before sealing firmware. Watchdog Timer should be enabled in production firmware with a 1-2 second timeout for reliable recovery from code lockups.
When using the mTouch capacitive-touch peripheral, route touch-sensing traces as short as possible, kept away from switching digital signals, and surrounded by a ground hatch to reduce noise coupling. Reference Microchip application note AN1478 for PCB layout guidelines for capacitive sensing. A 100 nF series capacitor on each touch pin is recommended for noise filtering on high-noise designs.
Estimated: at 20 MHz / 5 V, the PIC16F727-I/ML draws approximately 5.5 mA active. To achieve maximum battery life in sleep mode (~20 nA typical), disable all peripherals before the SLEEP instruction, switch the system clock to INTOSC with the lowest frequency setting, and ensure the MCLR pull-up is disabled (config bit MCLRE = 0). For battery-powered designs, add a 0.1 uF bypass on the VDD rail directly at the IC, plus a 100 kohm MCLR pull-up if the reset pin is used.
Compliance Information
RoHS and REACH compliant per Microchip product page. Lead-free Pb-free SnAgCu finish. Halogen-free molding compound. PIC16F727-I/ML is industrial temperature grade; AEC-Q100 qualified variants exist under the PIC16F727-E/ML extended-temperature grade for automotive applications. Conflict-minerals declaration available from Microchip.
