PIC16LF1829-I/SO - 8-bit MCU 14KB Flash 32MHz XLP SOIC-20
MPN: PIC16LF1829-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.61 | $2.61 |
| 10 | $2.35 | $23.50 |
| 100 | $2.1 | $210.00 |
| 500 | $1.88 | $940.00 |
| 1,000 | $1.65 | $1,650.00 |
PIC16LF1829-I/SO Overview
An 8-bit microcontroller (MCU) is a small, low-cost processor-on-a-chip that integrates a CPU core, program memory (Flash), data memory (RAM), and configurable peripherals (I/O, ADC, timers, communication interfaces) into a single IC. PIC microcontrollers use a RISC Harvard architecture and are widely used in embedded control for consumer, industrial, and IoT applications. The 'LF' prefix denotes a low-voltage variant, while 'XLP' (eXtreme Low Power) refers to Microchip's nanoWatt technology family, offering deep sleep currents down to a few nA.
Key features of the PIC16LF1829 include 14KB Flash (8K x 14 words), 1KB RAM, 256 bytes of EEPROM, mTouch capacitive touch sensing hardware, an enhanced 16-bit PWM with complementary outputs, and multiple serial interfaces including EUSART, I2C, and SPI. It supports in-circuit serial programming (ICSP) via two pins, plus an integrated debug interface that eliminates the need for an external debug header.
Architecturally, the PIC16LF1829 uses Microchip's enhanced mid-range 8-bit core with a 14-bit instruction word and a hardware multiplier. Its peripheral pin select (PPS) allows flexible I/O mapping, while the ADC supports automatic averaging and threshold comparisons. The XLP technology delivers typical sleep currents below 50 nA with RTCC and watchdog timer enabled.
Typical applications include battery-powered sensor nodes, capacitive touch user interfaces, low-energy IoT edge devices, consumer remote controls, and small home appliances. Its rich peripheral set and low-power operation make it well-suited for always-on designs powered by coin cells or harvested energy.
When designing with this device, ensure decoupling capacitors of at least 0.1uF are placed close to VDD, and use the PPS feature to map peripheral functions to the most convenient physical pins. For ultra-low standby power, configure unused peripherals to off and use the deep-sleep mode with RTCC for periodic wake-up.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16LF1829-I/SO — 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 PIC16LF1829-I/SO (same form factor and footprint) — differing in Package, Timers, ADC, Program Memory (Flash), Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1829-E/SO
✅ Drop-In✓ In Stock
$1.74 / Unit
View Datasheet →PIC16F1829-I/SO
✅ Drop-In✓ In Stock
$1.12 / Unit
View Datasheet →PIC16LF1828-I/SO
✅ Drop-In✓ In Stock
$1.32 / Unit
View Datasheet →PIC16LF1827-I/SO
✅ Drop-In✓ In Stock
$1.4 / Unit
View Datasheet →PIC16LF1826-I/SO
✅ Drop-In✓ In Stock
$0.98 / Unit
View Datasheet →PIC16LF1782-I/SO
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16LF1705-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1829-I/SO Maximum Ratings & Electrical Characteristics
| Family | PIC16F/LF182X |
| Core | 8-bit PIC RISC, enhanced mid-range |
| Instruction Word | 14-bit |
| Program Memory (Flash) | 14 KB (8K x 14) |
| Data RAM | 1 KB |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 12 |
| ADC | 10-bit, up to 12 channels |
| DAC | 5-bit, 1 channel |
| Comparators | 2 |
| Timers | 8/16-bit, multiple |
| PWM | Enhanced 16-bit with complementary outputs |
| Communication | EUSART, I2C, SPI |
| Capacitive Touch | mTouch hardware |
| Package | 20-pin SOIC (SO, 300 mil) |
| Operating Temperature | -40C to +85C (Industrial) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16LF1829-I/SO Pin Configuration
| Pin 1 | VDD — Positive power supply |
| Pin 2 | RA5 — Bidirectional I/O / digital input only |
| Pin 3 | RA4 — Bidirectional I/O |
| Pin 4 | MCLR/RA3 — Reset input (active low) or digital I/O |
| Pin 5 | RC5 — Bidirectional I/O |
| Pin 6 | RC4 — Bidirectional I/O |
| Pin 7 | RC3 — Bidirectional I/O |
| Pin 8 | RC6 — Bidirectional I/O |
| Pin 9 | RC7 — Bidirectional I/O |
| Pin 10 | RB7 — Bidirectional I/O |
| Pin 11 | RB6 — Bidirectional I/O |
| Pin 12 | RB5 — Bidirectional I/O |
| Pin 13 | RB4 — Bidirectional I/O |
| Pin 14 | RC2 — Bidirectional I/O |
| Pin 15 | RC1 — Bidirectional I/O |
| Pin 16 | RC0 — Bidirectional I/O |
| Pin 17 | RA2 — Bidirectional I/O |
| Pin 18 | RA1 — Bidirectional I/O / ICSP data |
| Pin 19 | RA0 — Bidirectional I/O / ICSP clock |
| Pin 20 | VSS — Ground reference |
Typical Applications
PIC16LF1829-I/SO is suitable for 7 applications: Battery-Powered IoT Sensor Node, Capacitive Touch User Interface, Consumer Remote Control, Industrial Sensor Conditioning, Smart Home White Goods Control, Wearable Health Patch, LED Lighting Controller.
Battery-Powered IoT Sensor Node
The PIC16LF1829-I/SO is ideally suited for coin-cell or 2x AA battery-powered IoT sensor nodes thanks to its 1.8 V to 3.6 V operating range and nanoWatt XLP deep sleep current under 50 nA. According to Microchip datasheet 41440A, the integrated 10-bit ADC, 32 kHz RTCC for duty-cycled wake-up, and mTouch capacitive sensing eliminate the need for external sensors, while 14 KB of Flash easily holds BLE/Zigbee host stubs or LoRa driver code. At typical duty cycles of 0.1%, average current stays below 10 uA, enabling multi-year battery life on a single CR2032.
Recommended
Capacitive Touch User Interface
The PIC16LF1829-I/SO integrates Microchip's mTouch capacitive touch hardware, supporting up to 12 touch channels without external analog components. Per datasheet 41440A, the mTouch peripheral handles charge-time measurement, baseline tracking, and noise filtering on-chip, freeing the CPU for UI logic. Combined with its 14 KB Flash and 1 KB RAM, the part runs touch button, slider, and proximity-sensing algorithms directly. Designers save BOM cost on dedicated touch ICs and benefit from XLP current draw below 5 uA per active scan.
Recommended
Consumer Remote Control
The PIC16LF1829-I/SO is a strong fit for handheld remote controls where its low-voltage operation (1.8 V to 3.6 V) pairs with a single CR2032 or 2x AAA supply. The integrated mTouch peripheral enables capacitive button surfaces, while the 32 MHz CPU speed supports custom IR, sub-GHz, or Bluetooth Low Energy protocols. Per Microchip datasheet 41440A, standby current under 1 uA with RTCC active keeps the battery alive for years of idle operation. Designers can use the 16-bit PWM to drive IR LED modulation directly without external timer ICs.
Recommended
Industrial Sensor Conditioning
The PIC16LF1829-I/SO serves well in industrial 4-20 mA loop-powered or 24V-bus sensor conditioning front-ends requiring local intelligence. Its 10-bit ADC with up to 12 channels, 2 on-chip comparators, and 5-bit DAC support transducer signal conditioning, threshold detection, and linearization. Per Microchip datasheet 41440A, the EUSART and I2C interfaces enable digital communication back to a controller over RS-485 or SMBus. Industrial -40C to +85C temperature grade and robust ESD ratings on I/O make it suitable for factory floor deployments.
Recommended
Smart Home White Goods Control
The PIC16LF1829-I/SO powers low-cost white goods controls like coffee makers, induction cooktops, and small appliances that benefit from capacitive touch interfaces and brushless DC motor control. Per datasheet 41440A, its 16-bit PWM with complementary outputs can drive half-bridges directly via external MOSFETs, while the mTouch peripheral replaces mechanical buttons. Wide 1.8 V to 3.6 V supply accommodates rectified mains designs, and the 1 KB RAM supports small real-time operating systems for state-machine firmware.
Recommended
Wearable Health Patch
The PIC16LF1829-I/SO enables disposable wearable health patches measuring heart rate, SpO2, or skin temperature via I2C-connected optical or electrochemical sensors. According to Microchip datasheet 41440A, deep sleep current under 50 nA with RTCC active is critical for week-long wear on a single coin cell, while the 10-bit ADC digitizes analog sensor outputs. The 14 KB Flash accommodates on-device data compression and Bluetooth Low Energy beacon stacks. mTouch hardware can detect patch removal as a wake-up source.
Recommended
LED Lighting Controller
The PIC16LF1829-I/SO controls entry-level constant-current LED drivers in architectural and signage lighting where its 16-bit PWM and 5-bit DAC set current levels smoothly. Per Microchip datasheet 41440A, the LF variant operates directly from 3.3 V regulator rails in buck or boost LED drivers. The 10-bit ADC reads photodiode or thermistor feedback for closed-loop brightness and thermal derating. Standby current under 1 uA in XLP mode suits always-on 'standby' lighting products that wake on capacitive touch.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1829-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1829-E/SO | PIC16F1829-I/SO | PIC16LF1828-I/SO | PIC16LF1782-I/SO | PIC16LF1705-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin SOIC (300 mil) | 20-pin SOIC (300 mil) - same | 20-pin SOIC (300 mil) - same | 20-pin SOIC (300 mil) - same | 20-pin SOIC (300 mil) - same | 20-pin SOIC (300 mil) - same |
| Program Memory (Flash) | 14 KB | 14 KB | 14 KB | 7 KB | 4 KB | 14 KB |
| Data RAM | 1 KB | 1 KB | 1 KB | 256 B | 512 B | 1 KB |
| Operating Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Capacitive Touch (mTouch) | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- 14 KB Flash with PPS peripheral pin mapping (vs PIC16LF1828-I/SO)
- Lower-voltage XLP operation down to 1.8 V (vs PIC16F1829-I/SO)
- Integrated mTouch capacitive touch hardware (vs PIC16LF1705-I/SO)
Design Notes
Place a 0.1 uF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 1) and an additional 10 uF bulk capacitor at the regulator output. Per Microchip datasheet 41440A, the part's XLP performance depends critically on clean supply - noisy VDD can cause spurious wake-ups from sleep. For battery operation, route VDD through a ferrite bead and add a 1N4148 reverse-polarity diode for protection. Always verify that the regulator can deliver the inrush current needed during Flash programming.
Do not leave the MCLR/RA3 pin floating - always tie it to VDD through a 10 kohm pull-up resistor, even if not used as a reset input. Per Microchip datasheet 41440A, an unconnected MCLR can cause spurious resets and erratic ICSP behavior. If using MCLR as a digital input (RA3), ensure the pull-up remains in place. Additionally, configure unused I/O pins as outputs driving low to minimize current draw in deep sleep.
Keep the ICSP programming header traces (ICSPCLK on RA0, ICSPDAT on RA1) free of series resistors above 100 ohm, as high impedance interferes with programming. Per Microchip datasheet 41440A, place the ICSP connector near the MCU and avoid routing sensitive analog signals (ADC inputs, comparator inputs) parallel to or under the ICSP lines. Use a 4.7 kohm pull-up on ICSPCLK and a 4.7 kohm pull-up on ICSPDAT if not actively driven externally.
Compliance Information
RoHS and REACH compliant per Microchip product declaration. Not AEC-Q100 qualified - use PIC16F1829-I/SO with AEC-Q100 screening for automotive applications.
