PIC16LF1829-E/P - 8-Bit 32MHz XLP MCU 14KB Flash 20-PDIP | Microchip
MPN: PIC16LF1829-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.18 | $21.80 |
| 100 | $1.85 | $185.00 |
| 500 | $1.62 | $810.00 |
| 1,000 | $1.41 | $1,410.00 |
PIC16LF1829-E/P Overview
What is a microcontroller? A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash/ROM), data memory (RAM), and integrated peripherals such as timers, ADCs, and communication interfaces. Within the broader taxonomy: microcontroller -> embedded controller -> semiconductor IC. The PIC16F/LF182x family belongs to Microchip's enhanced mid-range 8-bit PIC architecture, widely used for cost-sensitive embedded control in consumer, industrial, and IoT applications.
Key features include Core Independent Peripherals (CIPs) such as Configurable Logic Cells (CLC), Numerically Controlled Oscillator (NCO), and Complementary Waveform Generator (CWG), enabling complex control sequences without CPU intervention. The 'E' suffix denotes the extended (-40C to +125C) industrial operating temperature range, while the 'P' suffix indicates the 20-pin PDIP package with 300-mil (7.62 mm) row spacing suitable for through-hole prototyping, hobbyist, and legacy designs.
The LF1829 architecture uses a 14-bit instruction word with a single-cycle ALU and a hardware multiplier, delivering up to 32MHz operation (8 MIPS) from its internal 32MHz HFINTOSC. It supports multiple clock sources (HFINTOSC, LFINTOSC, external crystal, EC mode) with active clock switching for ultra-low-power sleep modes below 50 nA. The peripheral pin select (PPS) feature allows flexible remapping of digital peripheral signals to multiple I/O pins.
Typical applications include capacitive touch user interfaces (keyboards, sliders, proximity sensors), battery-powered sensor nodes with sleep currents under 1 uA, small motor control via the PWM/CWG peripherals, LED lighting controllers with smooth dimming, and general-purpose logic replacement using CLC blocks. Designers also use the LF1829 in safety-critical sensor conditioning thanks to the on-chip 10-bit ADC and rail-to-rail comparators.
When designing with this device, ensure decoupling capacitors of 100 nF and 10 uF are placed close to VDD pins. For low-power designs, leverage the multiple deep-sleep modes (Sleep, Deep Sleep, and Power-Down with RTCC) and use the nanoWatt XLP features to extend battery life. The 20-pin PDIP package is ideal for breadboarding and educational use; for volume production, migrate to the equivalent SOIC, SSOP, or QFN variants in the same PIC16LF1829 family.
This page synthesizes distributor pricing, parametric drop-in alternatives in the same PDIP-20 footprint, and practical low-power design notes that complement the manufacturer datasheet for engineers evaluating 8-bit PIC MCUs.
Drop-in alternatives for PIC16LF1829-E/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 PIC16LF1829-E/P (same form factor and footprint) — differing in ADC, Package, Timers, Program Memory (Flash), Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1829-E/P
✅ Drop-In✓ In Stock
$1.41 / Unit
View Datasheet →PIC16LF1829-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1829-I/P
✅ Drop-In✓ In Stock
$1.25 / Unit
View Datasheet →PIC16LF1828-I/P
✅ Drop-In✓ In Stock
$1.15 / Unit
View Datasheet →PIC16LF1826-I/P
✅ Drop-In✓ In Stock
$1.38 / Unit
View Datasheet →PIC16LF1824-E/P
✅ Drop-In✓ In Stock
$1.67 / Unit
View Datasheet →PIC16LF1823-I/P
✅ Drop-In✓ In Stock
$0.83 / Unit
View Datasheet →PIC16LF1829-E/P Maximum Ratings & Electrical Characteristics
| Core | PIC16 Enhanced Mid-Range 8-bit |
| Program Memory | 14 KB Flash (8K x 14 words) |
| Data Memory (SRAM) | 1 KB |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz (8 MIPS) |
| Operating Voltage | 1.8 V to 3.6 V |
| I/O Pins | 18 |
| ADC | 12-channel 10-bit |
| DAC | 1 x 5-bit / 1 x 8-bit (DAC8) |
| Comparators | 2 with rail-to-rail input |
| PWM Modules | 4 x 10-bit PWM (ECCP + CCP) |
| Timers | Timer0/1/2/3/4/5/6 |
| Communication | I2C, SPI, EUSART, mTouch capacitive sensing |
| Core Independent Peripherals | CLC, NCO, CWG, DSM, SMT |
| Package | 20-pin PDIP (P) - 7.62 mm row spacing |
| Operating Temperature | -40 C to +125 C (E suffix) |
| Pin Pitch | 2.54 mm (0.100 in) |
| RoHS Status | Compliant |
PIC16LF1829-E/P Pin Configuration
| Pin 1 | RA3/MCLR/Vpp — Master Clear (reset) input or programming voltage |
| Pin 2 | RA0 — Digital I/O / AN0 / C1IN0+ |
| Pin 3 | RA1 — Digital I/O / AN1 / C1IN1- |
| Pin 4 | RA2 — Digital I/O / AN2 / DAC1OUT |
| Pin 5 | RA4 — Digital I/O / AN3 / T0CKI |
| Pin 6 | RA5 — Digital I/O / AN4 / C2OUT |
| Pin 7 | Vss — Ground reference |
| Pin 8 | RB4 — Digital I/O / AN10 / SDA |
| Pin 9 | RB5 — Digital I/O / AN11 / RX |
| Pin 10 | RB6/ICSPCLK — Digital I/O / ICSP clock |
| Pin 11 | RB7/ICSPDAT — Digital I/O / ICSP data |
| Pin 12 | Vdd — Positive supply (1.8V-3.6V) |
| Pin 13 | RB0 — Digital I/O / AN12 / INT |
| Pin 14 | RB1 — Digital I/O / AN8 / SCL |
| Pin 15 | RB2 — Digital I/O / AN9 / TX |
| Pin 16 | RB3 — Digital I/O / AN7 / CCP1 |
| Pin 17 | RC0 — Digital I/O / AN5 / PWM |
| Pin 18 | RC1 — Digital I/O / AN6 / PWM |
| Pin 19 | RC2 — Digital I/O / AN7 / PWM |
| Pin 20 | RC3 — Digital I/O / AN8 / PWM |
Typical Applications
PIC16LF1829-E/P is suitable for 7 applications: Capacitive Touch User Interface, Battery-Powered IoT Sensor Node, Small Motor and Fan Control, LED Lighting and Dimming Controller, Logic Replacement with CLC, Industrial Sensor Conditioning, Educational and Hobbyist Development.
Capacitive Touch User Interface
The PIC16LF1829-E/P's integrated mTouch capacitive sensing module and 12-channel 10-bit ADC make it ideal for capacitive touch keypads, sliders, and proximity sensors. The device scans up to 12 mTouch channels using the dedicated CVD hardware, freeing the CPU for other tasks. The 14KB Flash stores debounce, gesture, and backlight control firmware without external memory. With 1.8V-3.6V operation and nanoWatt XLP sleep currents below 1 uA, touch interfaces can wake the MCU only on user contact, extending coin-cell battery life in remote controls, white-goods panels, and IoT user interfaces.
Recommended
Battery-Powered IoT Sensor Node
With nanoWatt XLP technology drawing less than 50 nA in Deep Sleep with RTCC, the PIC16LF1829-E/P suits long-life battery sensor nodes in environmental monitoring, smart agriculture, and asset tracking. The 1.8V-3.6V supply matches 2x AA alkaline or single-cell Li-ion chemistries directly. Core Independent Peripherals (CLC, SMT, NCO) handle wake-on-sensor events without waking the CPU. The 14KB Flash stores BLE command stacks or LoRaWAN device firmware, and the internal 32MHz HFINTOSC eliminates external crystals. Designers use SleepWalking modes to achieve multi-year battery life on a single coin cell.
Recommended
Small Motor and Fan Control
The PIC16LF1829-E/P drives small DC motors, fans, and pumps using its 4 x 10-bit PWM outputs, Enhanced CCP (ECCP) module, and Complementary Waveform Generator (CWG) for dead-band control. The two rail-to-rail comparators implement hardware overcurrent and back-EMF detection, while the ADC samples current and tachometer feedback. The Complementary Waveform Generator produces complementary PWM with programmable dead time, essential for H-bridge and half-bridge motor drivers. Core Independent Peripherals (CLC) create fault-protection logic without CPU intervention, making the LF1829 suitable for appliance, fan, and pump controllers.
Recommended
LED Lighting and Dimming Controller
The PIC16LF1829-E/P's 5-bit and 8-bit DACs, four PWM channels, and Core Independent Peripherals provide flexible LED dimming, color mixing, and fade control in architectural and accent lighting. The 32MHz CPU executes logarithmic dimming curves and DMX-style protocols smoothly. Hardware CWG and NCO generate flicker-free high-frequency PWM above 20 kHz, eliminating audible noise. The extended -40C to +125C temperature range supports outdoor lighting installations. The 20-pin PDIP package suits through-hole fixture designs and easy replacement in serviceable luminaires.
Recommended
Logic Replacement with CLC
The PIC16LF1829-E/P's Configurable Logic Cells (CLC) allow it to replace discrete glue logic such as AND/OR/XOR gates, latches, and timers while adding programmability. Engineers design custom signal routing, waveform conditioning, and timing logic using the on-chip CLC blocks without CPU intervention, reducing BOM cost and PCB area. Combined with the SMT (Signal Measurement Timer) and NCO, the LF1829 implements frequency measurement, pulse generation, and quadrature decoding directly in hardware. This is ideal for cost-down retrofits of legacy 74HC logic boards with added intelligence.
Recommended
Industrial Sensor Conditioning
The PIC16LF1829-E/P's 12-channel 10-bit ADC and two rail-to-rail comparators, plus PGA (Programmable Gain Amplifier) on select channels, allow direct conditioning of 4-20 mA industrial sensors, thermocouples, and bridge-type transducers. The 14KB Flash stores linearization, calibration, and HART-like protocol firmware. The extended -40C to +125C temperature range suits factory-floor and outdoor installations. Hardware CWG generates excitation signals for sensors, while SMT captures precise timing. With PPS (Peripheral Pin Select), the LF1829 routes signals to any I/O, simplifying PCB layout for harsh-environment designs.
Recommended
Educational and Hobbyist Development
The 20-pin PDIP package makes the PIC16LF1829-E/P ideal for breadboards, educational kits, and hobbyist projects where through-hole soldering is preferred. MPLAB X IDE, PICkit 3/4, and MPLAB Snap provide free development tools and ICSP debugging. The 14KB Flash accommodates full projects including compilers, math libraries, and serial stacks. Universities use the LF1829 for embedded systems courses thanks to the datasheet's clear documentation, mature MPLAB toolchain, and abundant example code on Microchip's Code Configurator and GitHub repositories. It is also popular for retro computing projects requiring 5V-tolerant I/O via the F1829 variant.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1829-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1829-E/P | PIC16LF1829-I/P | PIC16F1829-I/P | PIC16LF1828-I/P | PIC16LF1826-I/P | PIC16LF1824-E/P | PIC16LF1823-I/P |
|---|---|---|---|---|---|---|---|---|
| Package | 20-pin PDIP (P) | 20-pin PDIP (P) - same | 20-pin PDIP (P) - same | 20-pin PDIP (P) - same | 20-pin PDIP (P) - same | 20-pin PDIP (P) - same | 20-pin PDIP (P) - same | 20-pin PDIP (P) - same |
| Brand | Microchip Technology | Microchip Technology - same brand | Microchip Technology - same brand | Microchip Technology - same brand | Microchip Technology - same brand | Microchip Technology - same brand | Microchip Technology - same brand | Microchip Technology - same brand |
| Program Memory (Flash) | 14 KB | 14 KB (same) | 14 KB (same) | 14 KB (same) | 8 KB (-43%) | 8 KB (-43%) | 4 KB (-71%) | 8 KB (-43%) |
| Data SRAM | 1 KB | 1 KB (same) | 1 KB (same) | 1 KB (same) | 512 B (-50%) | 512 B (-50%) | 256 B (-75%) | 512 B (-50%) |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 5.5 V (wider) | 1.8 V to 3.6 V (same) | 1.8 V to 5.5 V (wider) | 1.8 V to 3.6 V (same) | 1.8 V to 3.6 V (same) | 1.8 V to 3.6 V (same) | 1.8 V to 3.6 V (same) |
| Operating Temperature | -40 C to +125 C (E) | -40 C to +125 C (E, same) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +125 C (E, same) | -40 C to +85 C (I) |
| Maximum CPU Speed | 32 MHz | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) |
| mTouch Capacitive Sensing | Yes | Yes | Yes | Yes | Yes | Yes | Limited (fewer channels) | Yes |
| Core Independent Peripherals (CLC/NCO/CWG) | Yes (full set) | Yes (full set) | Yes (full set) | Yes (full set) | Limited (subset) | Limited (subset) | Limited | Limited (subset) |
| Approximate Unit Price (1 qty, USD) | 2.45 | 2.45 (similar) | 2.30 | 2.30 | 2.05 | 1.95 | 1.80 | 1.95 |
Key Differentiators
- Largest Flash in the 20-pin PDIP LF182x family (vs PIC16LF1828-I/P)
- Extended -40C to +125C temperature range in E-grade (vs PIC16LF1829-I/P)
- Full Core Independent Peripherals suite (vs PIC16LF1824-E/P)
- Low-voltage LF optimization for battery designs (vs PIC16F1829-E/P)
Design Notes
Decouple the Vdd pin with a 100 nF ceramic capacitor placed within 5 mm of the pin, and add a bulk 10 uF capacitor near the supply rail. The PIC16LF1829-E/P includes nanoWatt XLP sleep modes; for battery designs below 1 uA total quiescent, ensure all unused I/O pins are configured as outputs low or inputs with weak pull-ups disabled. Use Sleep mode (50 nA typical) with RTCC for periodic wake-ups instead of the main loop to maximize battery life in coin-cell applications.
Keep analog signals (ANx, comparator inputs, DAC output) routed away from high-speed digital lines and PWM outputs to minimize coupling. The dedicated Vdd/Vss pairs on the LF1829 allow split analog/digital supplies if needed; place the AGND connection at the single-point ground near the Vss pin. For mTouch capacitive sensing, surround the touch pad with a ground hatch and avoid running traces under the pad. Keep the MCLR pin pulled high with a 10 kohm resistor and a 100 nF cap to ground to prevent false resets from noise.
Do not exceed the absolute maximum Vdd of 4.0V on the LF variant - even brief transients above 3.6V can cause EEPROM corruption or unreliable ADC readings. Use the F1829 variant instead if 5V supply rails are present. When using the internal HFINTOSC, allow the OST (oscillator start-up timer) to complete before critical timing operations; the LF1829 default HFINTOSC accuracy is +/-2% across voltage and temperature, which may require software calibration for UART communication. Always configure the PPS registers before enabling peripherals on remappable pins.
The PIC16LF1829-E/P is a low-power device dissipating typically under 50 mW even at full 32 MHz operation, so no heatsink is required. However, at -40C to +125C operation in sealed enclosures, verify that self-heating does not push the junction above 150C. Estimated: at 32 MHz, Vdd=3.6V, I_dd approx 8 mA, dissipation is approx 29 mW which yields negligible self-heating in the PDIP-20 package (theta_JA approx 70 C/W). For high-temperature industrial installations, ensure adequate airflow or de-rate clock speed in firmware.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - for automotive applications use PIC16F1829-E/P or designated automotive-grade variants. Lead-free and halogen-free per Microchip environmental compliance data.
