PIC16F1827-I/ML - 8-bit MCU 7KB Flash 32MHz XLP 28-QFN | Microchip
MPN: PIC16F1827-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.2 | $22.00 |
| 100 | $1.95 | $195.00 |
| 500 | $1.75 | $875.00 |
| 1,000 | $1.55 | $1,550.00 |
PIC16F1827-I/ML Overview
An 8-bit microcontroller is a single-chip computer built around an 8-bit data bus and Harvard architecture that executes instructions in 1-2 cycles. The PIC16F1827 belongs to Microchip's enhanced mid-range PIC16 family, which sits within the broader 8-bit MCU hierarchy: PIC10/12/16/18 families → 8-bit microcontrollers → microcontrollers → embedded processors → semiconductors. Within a system, it functions as the main decision-making and timing controller, supervising sensor sampling, communication, and actuator drive tasks.
The PIC16F1827's headline differentiators are its 32 MHz maximum CPU speed (200 ns instruction cycle), 7 KB self-programmable Flash, and ultra-low XLP sleep current of approximately 20 nA in Real-Time Clock mode. Additional features include 16 I/O pins, a 2.5-5.5 V wide operating voltage range, peripheral pin select (PPS) for flexible signal routing, and on-chip debugging via ICD.
Architecturally, the device combines an enhanced mid-range RISC core with a wide peripheral set that includes enhanced USART, MSSP (I2C/SPI), up to four 10-bit PWM outputs, comparators, and a 32 MHz internal oscillator with ±1% accuracy. This integration allows designers to replace multiple discrete components with a single chip while reducing BOM cost and PCB area.
Typical applications include IoT sensor nodes, consumer electronics, capacitive touch interfaces (mTouch), battery-powered products leveraging XLP low-power modes, and industrial control. The 28-QFN package makes it ideal for space-constrained designs.
When designing with this part, pay attention to the QFN exposed pad thermal/ground connection - it must be soldered to a properly sized copper pour. For battery applications, use XLP sleep modes and the internal low-power oscillator to maximize runtime.
This page synthesizes distributor pricing, drop-in QFN alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16F1827-I/ML — 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 PIC16F1827-I/ML (same form factor and footprint) — differing in Package, Core Architecture, I/O Pins, Program Memory (Flash), Timers.
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Request AlternativesPIC16F1827-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | Enhanced Mid-Range PIC16 8-bit RISC |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data RAM | 384 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Instruction Cycle | 200 ns |
| Operating Voltage Range | 2.5 V to 5.5 V |
| I/O Pins | 16 |
| ADC | 10-bit, up to 12 channels |
| PWM Outputs | 10-bit PWM with multiple modules |
| Communication Interfaces | Enhanced USART, MSSP (I2C/SPI) |
| Timers | 4 x 8-bit, 1 x 16-bit |
| Internal Oscillator | 32 MHz with ±1% accuracy |
| Low-Power Technology | nanoWatt XLP (~20 nA sleep with RTC) |
| Package | 28-pin QFN (ML) 6x6 mm with exposed pad |
| Operating Temperature | -40°C to +85°C (Industrial) |
| Mounting Type | Surface Mount |
| Programming/Debug | ICSP and ICD via 2-wire interface |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16F1827-I/ML Pin Configuration
| Pin 1 | RA0/AN0/C1IN+/ICSPDAT — GPIO RA0, ADC input, comparator input, ICSP data |
| Pin 2 | RA1/AN1/C1IN-/ICSPCLK — GPIO RA1, ADC input, comparator input, ICSP clock |
| Pin 3 | RA2/AN2/DACOUT1 — GPIO RA2, ADC input, DAC output |
| Pin 4 | RA3/AN3/C1IN+/VREF+ — GPIO RA3, ADC input, comparator input, positive reference |
| Pin 5 | RA4/AN4/T0CKI/C1OUT — GPIO RA4, ADC input, Timer0 clock, comparator output |
| Pin 6 | RA5/MCLR/VPP — Master Clear reset (active low) / programming voltage |
| Pin 7 | RA6/OSC2/CLKOUT — GPIO RA6, crystal output, clock output |
| Pin 8 | RA7/OSC1/CLKIN — GPIO RA7, crystal input, clock input |
| Pin 9 | VSS — Ground |
| Pin 10 | VDD — Positive power supply (2.5-5.5 V) |
| Pin 11 | RB0/AN12/INT — GPIO RB0, ADC input, external interrupt |
| Pin 12 | RB1/AN10/C1IN3-/P1C — GPIO RB1, ADC input, comparator input, PWM output |
| Pin 13 | RB2/AN8/P1B — GPIO RB2, ADC input, PWM output |
| Pin 14 | RB3/AN9/C1IN2-/P1C — GPIO RB3, ADC input, comparator input, PWM output |
| Pin 15 | RB4/AN11/P1D — GPIO RB4, ADC input, PWM output |
| Pin 16 | RB5/AN13/P1B — GPIO RB5, ADC input, PWM output |
| Pin 17 | RB6/ICSPCLK/ICDCLK — GPIO RB6, ICSP clock, ICD clock |
| Pin 18 | RB7/ICSPDAT/ICDDAT — GPIO RB7, ICSP data, ICD data |
| Pin 19 | RC0/SOSCO — GPIO RC0, secondary oscillator output |
| Pin 20 | RC1/SOSCI — GPIO RC1, secondary oscillator input |
| Pin 21 | RC2/AN14/P1D — GPIO RC2, ADC input, PWM output |
| Pin 22 | RC3/AN15/P1C — GPIO RC3, ADC input, PWM output |
| Pin 23 | RC4/AN16/P1B — GPIO RC4, ADC input, PWM output |
| Pin 24 | RC5/AN17/P1D — GPIO RC5, ADC input, PWM output |
| Pin 25 | RC6/AN18/TX/CK — GPIO RC6, ADC input, USART transmit/clock |
| Pin 26 | RC7/AN19/RX/DT — GPIO RC7, ADC input, USART receive/data |
| Pin 27 | RE3/MCLR/VPP — GPIO RE3, alternate MCLR, programming voltage |
| Pin 28 | VDD — Positive power supply (tied to pin 10) |
| Pin EP | EP (Exposed Pad) — Must be soldered to ground for thermal/electrical reference |
Typical Applications
PIC16F1827-I/ML is suitable for 7 applications: IoT Sensor Nodes, Capacitive Touch (mTouch) Interfaces, Battery-Powered Consumer Electronics, Industrial Control and Sensor Conditioning, Automotive Body and Interior Electronics, USB HID and PC Peripherals, Smart Home and Building Automation.
IoT Sensor Nodes
The PIC16F1827-I/ML is ideal for IoT sensor nodes where battery life and small PCB area are critical. Its nanoWatt XLP sleep current of ~20 nA (RTC running) allows multi-year operation on a coin cell, while the 32 MHz internal oscillator eliminates external crystals. The 7 KB Flash accommodates lightweight wireless stacks (LoRaWAN, Zigbee, BLE beacons) and sensor-fusion firmware. The 10-bit ADC with up to 12 channels supports direct connection to analog sensors such as temperature, light, and gas sensors, while the MSSP (I2C/SPI) interfaces with digital sensors. The 28-QFN 6x6 mm footprint keeps the BOM area small for compact wireless modules.
Recommended
Capacitive Touch (mTouch) Interfaces
The PIC16F1827-I/ML integrates Microchip's mTouch capacitive touch sensing peripheral, making it suitable for touch buttons, sliders, and proximity sensors in consumer appliances and human-machine interfaces (HMIs). The CTMU module provides high-resolution time measurement for capacitive sensing with no external components, while the PPS peripheral pin select allows touch channels to be remapped to any I/O. With up to 16 I/O pins, the device supports multi-button control panels. Compared with mechanical switches, capacitive touch eliminates wear, enables sealed enclosures (IP-rated), and reduces BOM by removing buttons and connectors in the user interface.
Recommended
Battery-Powered Consumer Electronics
The PIC16F1827-I/ML is well-matched to battery-powered consumer devices such as remote controls, wearables, and personal care products. Its 2.5-5.5 V wide supply range supports both single-cell Li-ion (3.7 V nominal) and 3 V coin cells (CR2032), while XLP sleep modes reduce average current to microamps. The 32 MHz core runs protocol stacks and display drivers, while the 10-bit PWM drives LEDs or small motors. The compact 28-QFN 6x6 mm package suits space-constrained wearable form factors. Designers leverage the on-chip 32 kHz low-power oscillator for RTC functions without external crystal overhead.
Recommended
Industrial Control and Sensor Conditioning
The PIC16F1827-I/ML supports industrial control applications including sensor conditioning, motor control (small DC/BLDC via PWM/CWG), and simple PLC-style I/O modules. Its enhanced mid-range core delivers deterministic 200 ns instruction execution, suitable for closed-loop control loops. The 10-bit ADC with internal voltage reference reads analog process variables, while PWM modules drive proportional valves or heaters. CWG (Complementary Waveform Generator) supports half-bridge motor drive with programmable dead time. The industrial -40°C to +85°C operating range covers most factory environments. The wide 5 V tolerance supports legacy 5 V industrial sensor interfacing.
Recommended
Automotive Body and Interior Electronics
The PIC16F1827-I/ML suits automotive body electronics applications such as interior lighting controllers, HVAC panel controls, and seat memory modules where moderate processing and small package size are required. While the -I grade is rated -40°C to +85°C (interior cabin), automotive designs requiring under-hood operation need the -E (extended -40°C to +125°C) variant or a PIC18F family part. The device's PWM modules dim LEDs, while MSSP drives LED driver ICs over SPI. CAN bus connectivity is added via external MCP2515. The 7 KB Flash supports lighting sequences, button debouncing, and diagnostic logging typical of body controllers.
Recommended
USB HID and PC Peripherals
The PIC16F1827-I/ML can serve as a low-cost USB Human Interface Device (HID) controller for keyboards, mice, and custom PC peripherals when paired with an external USB transceiver or used in designs migrating from legacy USB MCUs. With 7 KB Flash it accommodates USB HID class descriptors and basic HID report handling, and the MSSP supports SPI peripherals such as LED drivers or display controllers. PPS allows flexible USB signal routing. For high-volume USB peripherals, designers may migrate to PIC18F or dsPIC families for on-chip USB and higher throughput, but the PIC16F1827 is a cost-effective solution for HID-style devices via external USB bridges.
Recommended
Smart Home and Building Automation
The PIC16F1827-I/ML fits smart home devices such as thermostat keypads, smart switches, and sensor hubs. Its combination of XLP low-power modes and 16 I/O pins supports battery-powered wireless sensors (PIR, door/window, temperature) reporting to a central hub via Sub-GHz, Zigbee, or BLE modules over UART/SPI. The CLC (Configurable Logic Cell) enables glue-logic replacement, reducing external gates. The small 28-QFN 6x6 mm package enables ultra-thin wall-switch form factors. With 7 KB Flash, the device runs Zigbee ZCL handling or simple state machines for occupancy detection and lighting control in residential and light-commercial building automation.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1827-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1827-E/ML | PIC16F1826-I/ML | PIC16F1824-I/ML | PIC16F1823-I/ML | PIC16F1769-I/ML | PIC18F27K40-I/ML | PIC18F27Q10-I/ML |
|---|---|---|---|---|---|---|---|---|
| Package | 28-QFN (ML) 6x6 mm | 28-QFN (ML) 6x6 mm - same | 28-QFN (ML) 6x6 mm - same | 28-QFN (ML) 6x6 mm - same | 28-QFN (ML) 6x6 mm - same | 28-QFN (ML) 6x6 mm - same | 28-QFN (ML) 6x6 mm - same | 28-QFN (ML) 6x6 mm - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Core | PIC16 enhanced mid-range 8-bit | PIC16 enhanced mid-range 8-bit - same | PIC16 enhanced mid-range 8-bit - same | PIC16 enhanced mid-range 8-bit - same | PIC16 enhanced mid-range 8-bit - same | PIC16 enhanced mid-range 8-bit - same | PIC18 8-bit (upward compatible) | PIC18 8-bit (upward compatible) |
| Flash Memory | 7 KB | 7 KB | 3.5 KB | 4 KB | 2 KB | 14 KB | 32 KB | 32 KB |
| RAM | 384 B | 384 B | 256 B | 256 B | 128 B | 1 KB | 2 KB | 2 KB |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 64 MHz | 64 MHz |
| Operating Voltage | 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 | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| I/O Pins | 16 | 16 | 16 | 16 | 16 | 17 | 25 | 25 |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Approx Unit Price (qty 1) | $2.45 | $2.60 (est.) | $2.20 (est.) | $2.10 (est.) | $1.95 (est.) | $2.80 (est.) | $3.40 (est.) | $3.20 (est.) |
Key Differentiators
- 7 KB Flash vs 3.5 KB on PIC16F1826 with same package and peripherals (vs PIC16F1826-I/ML)
- Extended temperature option in identical QFN-28 package (vs PIC16F1827-E/ML)
- PIC18 family upgrade path with 4x memory and 2x CPU speed in same footprint (vs PIC18F27K40-I/ML)
Design Notes
The 28-QFN (ML) package has an exposed thermal pad (EP) on the underside that serves both as the primary thermal path and as the device ground reference. The EP MUST be soldered to a properly sized copper pad on the PCB (typically 4x4 mm minimum) with multiple thermal vias connecting to the inner/ground plane. Failing to solder the EP causes severe thermal stress, latch-up susceptibility, and erratic behavior. Use a stencil aperture array (4-6 openings) to ensure reliable solder joint without voiding.
Decouple VDD (pins 10 and 28) with a 100 nF ceramic capacitor placed within 3 mm of each VDD pin, plus a bulk 1-10 uF tantalum or ceramic capacitor on the board. The PIC16F1827 draws sharp transient currents during internal oscillator transitions and peripheral switching. Place a 100 nF cap close to the AVREF/VDD analog pin if the ADC is used. Estimated: at 32 MHz CPU and active peripherals, peak current can reach ~15 mA - design your LDO/battery source with adequate margin.
Common pitfalls when designing with PIC16F1827-I/ML: (1) Forgetting that the MCLR pin (RA5) requires a pull-up if not used as I/O - leaving it floating prevents startup. (2) Using the internal 32 MHz oscillator without configuring OSCCON properly - HFINTOSC defaults to 16 MHz after reset and must be switched. (3) Programming without ICD pull-ups on ICSPCLK/ICSPDAT - some debuggers cannot drive the lines. (4) Forgetting to set configuration bits (CONFIG1/2/3) for BOR, watchdog, and code protection before programming.
Route the ICSP lines (ICSPCLK/ICSPDAT on RB6/RB7) as a short, parallel pair away from high-frequency signals (PWM outputs, oscillator traces). Keep analog signals (ADC inputs) away from digital switching lines and route over a continuous ground plane. The 32 kHz secondary oscillator (SOSCO/SOSCI on RC0/RC1) traces should be short and surrounded by ground pour. For PPS flexibility, leave PPS-routable pins unused initially so firmware can remap peripherals without PCB changes.
The PIC16F1827-I/ML's 10-bit ADC achieves typical ENOB of 9.5 bits with proper analog layout. For best ADC accuracy: (1) use a separate analog ground return path to the regulator, (2) add a small RC filter (10 ohm + 100 nF) on each ADC input if source impedance exceeds 2 kohm, (3) use the dedicated VREF+ pin as ADC reference instead of VDD when measuring ratiometric sensors. Estimated: at 1 Msps ADC rate the input impedance requirement is 2.5 kohm or less - higher source impedances cause gain errors.
Compliance Information
RoHS and REACH compliant per Microchip product page. The PIC16F1827-I/ML is NOT AEC-Q100 qualified - for automotive applications requiring AEC-Q100, consult Microchip's PIC16F1xxx automotive-grade variants. Lead-free and halogen-free per Microchip environmental certification.
