PIC16LF1824-I/JQ - 8-bit PIC MCU, 7KB Flash, 32MHz, 16-UQFN
MPN: PIC16LF1824-I/JQ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.97 | $0.97 |
| 10 | $0.86 | $8.60 |
| 100 | $0.72 | $72.00 |
| 500 | $0.62 | $310.00 |
| 1,000 | $0.55 | $550.00 |
PIC16LF1824-I/JQ Overview
What is a PIC16 microcontroller? A PIC16 microcontroller is a family of 8-bit CMOS flash microcontrollers from Microchip based on an enhanced mid-range Harvard-architecture RISC core. It belongs to the broader category of microcontrollers (MCU) within the semiconductor hierarchy, sitting alongside 16-bit dsPIC and 32-bit ARM Cortex-M devices. PIC16 MCUs are widely deployed in cost-sensitive, low-power embedded designs where predictable interrupt response, mature toolchain support (MPLAB X, XC8), and XLP (eXtreme Low Power) technology are valued. The 'LF' prefix indicates the wide-voltage, low-power variant (1.8V-3.6V) suitable for battery-powered systems.
Key features include the mTouch capacitive touch sensing peripheral, 12-channel 10-bit ADC with voltage reference, two 8-bit timers plus one 16-bit timer, enhanced PWM with up to 4 outputs, and three communication peripherals (I2C, SPI, and USART with LIN support). The device integrates an internal 32MHz oscillator, configurable logic cell (CLC), and Numerically Controlled Oscillator (NCO) for precise frequency generation. Power management features include nanoWatt XLP technology with sleep currents as low as 20 nA, making the device suitable for always-on IoT endpoints.
The PIC16LF1824's architecture combines a 14-bit instruction word with a hardware stack of 16 levels and 49 base instructions, delivering deterministic interrupt latency critical for real-time control. The integrated capacitive touch peripheral (mTouch) and CLC allow software-defined peripherals, reducing external component count. The device supports both 3.3V and lower-voltage operation across an industrial -40C to +85C (I-grade) range.
Typical applications include consumer touch-interface products, low-power wireless sensor nodes, LED lighting controllers, battery-powered IoT devices, and small appliance controllers. Its combination of capacitive touch, ADC, and PWM in a 4x4 mm package is particularly attractive for space-constrained human-machine interface (HMI) modules.
When designing with the PIC16LF1824, ensure decoupling capacitors (100 nF plus 1 uF bulk) are placed within 5 mm of the VDD pin, and follow Microchip's recommended trace routing for the mTouch sensor patterns. Programming is via MPLAB X IDE with XC8 compiler; debugging requires a PICkit or ICD tool. All unused I/O pins should be configured as outputs low to minimize quiescent current.
This page synthesizes distributor pricing, drop-in alternatives drawn from the PIC16LF family, and practical design notes drawn from the manufacturer datasheet (DS40001419A) to support component selection and procurement.
Drop-in alternatives for PIC16LF1824-I/JQ — 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 PIC16LF1824-I/JQ (same form factor and footprint) — differing in Package, ADC, Timers, Program Memory (Flash), Comparators.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1824T-I/JQ
✅ Drop-In✓ In Stock
$0.68 / Unit
View Datasheet →PIC16F1824-I/JQ
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16LF1823-I/JQ
✅ Drop-In✓ In Stock
$0.95 / Unit
View Datasheet →PIC16LF1824-E/JQ
✅ Drop-In✓ In Stock
$1.45 / Unit
View Datasheet →PIC16LF1554-I/JQ
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF15325-I/JQ
✅ Drop-In✓ In Stock
$0.99 / Unit
View Datasheet →PIC16LF1824-I/JQ Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 Enhanced Mid-Range 8-bit RISC |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data SRAM | 256 bytes |
| Data EEPROM | 256 bytes |
| Supply Voltage Range | 1.8 V to 3.6 V (LF series) |
| I/O Pins | 12 |
| ADC | 10-bit, 12-channel |
| Timers | 2x 8-bit, 1x 16-bit |
| PWM Outputs | Up to 4 enhanced PWM |
| Communication Interfaces | 1x I2C, 1x SPI, 1x USART (LIN-capable) |
| Capacitive Touch | mTouch peripheral |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| Package | 16-pin UQFN (4x4 mm) |
| Mounting Type | Surface Mount |
| MSL Level | 3 (168 hours) |
| RoHS Status | Compliant |
| Lead-Free / Halogen-Free | Yes / Yes |
PIC16LF1824-I/JQ Pin Configuration
| Pin 1 | RA5/CCP1/MCLR/VPP — Bidirectional I/O, CCP1 output, Master Clear reset (active-low), programming voltage input |
| Pin 2 | RA4/AN3/T1G — Bidirectional I/O, analog input 3, Timer1 gate input |
| Pin 3 | RA3/CCP2 — Bidirectional I/O, CCP2 output |
| Pin 4 | RC5/RX/DT — Bidirectional I/O, USART RX, LIN data |
| Pin 5 | RC4/TX/CK — Bidirectional I/O, USART TX, SPI clock |
| Pin 6 | RC3/AN7/SS — Bidirectional I/O, analog input 7, SPI slave select |
| Pin 7 | RC2/AN6/SDI — Bidirectional I/O, analog input 6, SPI data in |
| Pin 8 | RC1/AN5/SDO — Bidirectional I/O, analog input 5, SPI data out |
| Pin 9 | RC0/AN4 — Bidirectional I/O, analog input 4 |
| Pin 10 | VSS — Ground reference |
| Pin 11 | RA2/AN2 — Bidirectional I/O, analog input 2 |
| Pin 12 | RA1/AN1/IOCA1 — Bidirectional I/O, analog input 1, interrupt-on-change |
| Pin 13 | RA0/AN0 — Bidirectional I/O, analog input 0 |
| Pin 14 | RA7/OSC1/CLKIN — Bidirectional I/O, crystal oscillator input, external clock input |
| Pin 15 | RA6/OSC2/CLKOUT — Bidirectional I/O, crystal oscillator output, clock output |
| Pin 16 | VDD — Positive supply voltage (1.8V-3.6V) |
Typical Applications
PIC16LF1824-I/JQ is suitable for 6 applications: Capacitive Touch HMI Buttons, Battery-Powered IoT Sensor Node, LED Lighting Controller, Small Appliance Controller, USB HID Consumer Device, Industrial Sensor Transmitter.
Capacitive Touch HMI Buttons
The PIC16LF1824-I/JQ is ideally suited for capacitive touch human-machine interface (HMI) modules in consumer appliances, smart home panels, and industrial controls. The on-chip mTouch peripheral supports up to 12 touch channels via the CTMU (Charge Time Measurement Unit), eliminating the need for external touch ICs and reducing BOM cost. The 4x4 mm UQFN package allows the MCU to be placed directly beneath the touch pad, minimizing trace length and improving noise immunity. With 7KB Flash, engineers can implement Microchip's mTouch Lite or full mTouch library along with debounce, gesture recognition, and backlight control logic. The 1.8V-3.6V supply range supports 2x AA or coin-cell power. Recommended companion: PIC16LF1789 for larger touch HMI displays, MCP73831 for Li-ion charging.
Recommended
Battery-Powered IoT Sensor Node
The PIC16LF1824-I/JQ's nanoWatt XLP technology delivers sleep currents as low as 20 nA, making it well-suited for battery-powered wireless sensor endpoints. Its 1.8V-3.6V operation matches 2x AA alkaline, 2x AAA, or coin-cell supplies without a boost converter. The 12-channel 10-bit ADC with internal voltage reference can read temperature, humidity, and battery voltage sensors directly. The integrated USART (LIN-capable) interfaces to sub-GHz transceivers such as the MRF89XA or to BLE modules. The 7KB Flash holds application logic plus Microchip's wireless protocol stack stub, while the 256-byte EEPROM retains calibration data across battery swaps. Estimated battery life with 1% duty-cycle wake-up exceeds 5 years on 2x AA cells. Recommended companion: MRF89XA sub-GHz transceiver, MCP1700 LDO.
Recommended
LED Lighting Controller
The PIC16LF1824-I/JQ supports LED lighting controllers in architectural and accent lighting products through its enhanced PWM peripheral with up to 4 outputs. Each PWM channel supports independent duty cycle and frequency control, enabling RGBW color mixing and smooth dimming without software overhead. The 32MHz CPU executes PID loops for constant-current LED regulation, while the 12-bit ADC (oversampled to 10-bit) reads photodiode feedback for ambient-light compensation. The mTouch peripheral can be used for capacitive dimming sliders behind glass panels. The 1.8V-3.6V supply range plus low-power sleep makes it ideal for mains-powered and battery-powered LED fixtures. Recommended companion: MCP16502 power management IC, TLC59401 16-channel LED driver for larger fixtures.
Recommended
Small Appliance Controller
The PIC16LF1824-I/JQ serves as the primary controller in small home appliances such as coffee makers, fans, humidifiers, and kitchen timers. Its 12 I/O pins drive relays, triacs, sensor inputs, and user interface elements (LEDs, buzzers, capacitive buttons). The enhanced 16-bit timer supports accurate timekeeping for cooking and brewing applications, while the 10-bit ADC reads temperature, water level, and humidity sensors. The USART interfaces to motor control BLDC drivers or display modules. The 7KB Flash and 256B EEPROM hold product firmware, calibration curves, and user settings that persist across power cycles. The industrial -40C to +85C temperature range supports kitchen and laundry environments. Recommended companion: AT25256B SPI EEPROM for data logging, MCP9700 temperature sensor.
Recommended
USB HID Consumer Device
The PIC16LF1824-I/JQ, paired with an external USB-to-UART bridge such as the MCP2200 or MCP2221, can implement low-cost USB Human Interface Devices (HID) such as programmable macro keypads, presentation clickers, or custom input devices. The 32MHz CPU handles HID report generation, debounce, and LED indication, while 7KB Flash supports feature-rich firmware. The mTouch peripheral adds capacitive touch buttons to the USB device without mechanical switches, ideal for sealed industrial input panels. The 16-UQFN package fits within slim consumer form factors. The 1.8V-3.6V supply is fed from the USB 5V rail through a 3.3V LDO. Recommended companion: MCP2221 USB-I2C/UART bridge, MCP1700 3.3V LDO.
Recommended
Industrial Sensor Transmitter
The PIC16LF1824-I/JQ is well-suited for 4-20 mA and 0-10V industrial sensor transmitters requiring stable analog performance and robust communication. Its 10-bit ADC with internal 1.024V/2.048V voltage reference delivers repeatable readings across -40C to +85C. The enhanced USART with LIN support interfaces to RS-485 transceivers (such as the MCP2562) for industrial fieldbus protocols. The CLC (Configurable Logic Cell) implements custom signal conditioning logic in hardware, offloading CPU cycles. The 7KB Flash and 256B EEPROM support sensor linearization tables, calibration constants, and Modbus RTU protocol stacks. The 16-UQFN package is compatible with reflow soldering on compact sensor PCBs. Recommended companion: MCP2562 RS-485 transceiver, XTR115 4-20 mA current loop transmitter.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1824-I/JQ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1824T-I/JQ | PIC16F1824-I/JQ | PIC16LF1823-I/JQ | PIC16LF1824-E/JQ | PIC16LF1554-I/JQ |
|---|---|---|---|---|---|---|
| Package | 16-UQFN (4x4 mm) | 16-UQFN (4x4) - same | 16-UQFN (4x4) - same | 16-UQFN (4x4) - same | 16-UQFN (4x4) - same | 16-UQFN (4x4) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | PIC16 8-bit, 32 MHz | PIC16 8-bit, 32 MHz | PIC16 8-bit, 32 MHz | PIC16 8-bit, 32 MHz | PIC16 8-bit, 32 MHz | PIC16 8-bit, 32 MHz |
| Program Flash | 7 KB | 7 KB | 7 KB | 3.5 KB | 7 KB | 7 KB |
| Supply Voltage | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 5.5V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V |
| Capacitive Touch (mTouch) | Yes | Yes | Yes | Yes | Yes | No |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (E grade) | -40C to +85C |
Key Differentiators
- Industry-standard mTouch capacitive touch peripheral integrated on-chip (vs PIC16LF1554-I/JQ)
- Wide-voltage LF variant supports 1.8V-3.6V with nanoWatt XLP sleep currents (vs PIC16F1824-I/JQ)
- Enhanced PWM with up to 4 independent channels plus CLC configurability (vs PIC16LF1823-I/JQ)
Design Notes
Place a 100 nF ceramic decoupling capacitor within 3 mm of the VDD pin (pin 16) and a 1 uF to 10 uF bulk capacitor at the board entry point. For battery-powered applications, add a 100 kohm resistor from MCLR to VDD to keep current draw below 1 uA in sleep mode. The internal 32 MHz HFINTOSC is factory-calibrated to within +/-2% and eliminates the need for an external crystal in most designs, reducing BOM cost and PCB area.
The 'JQ' suffix in PIC16LF1824-I/JQ indicates tray packaging per Microchip convention; the T-suffix variant PIC16LF1824T-I/JQ is the tape-and-reel version of the same die. When ordering, verify the suffix matches your assembly line requirement. Also note that the LF (1.8V-3.6V) variant differs from the F (1.8V-5.5V) variant: do not substitute an F for an LF if your circuit relies on the lower maximum voltage for ESD sensitivity or power budget reasons.
For mTouch capacitive sensing applications, route the touch sensor traces with a minimum 0.2 mm clearance from adjacent traces, and keep them short (under 50 mm recommended). Use a ground plane flood around but not under the touch pad. Place a series resistor (typically 1 kohm) close to the MCU pin to improve ESD immunity on touch inputs. The exposed pad on the 16-UQFN package must be soldered to the PCB thermal pad and tied to VSS for thermal dissipation and electrical reference.
When using the SPI peripheral at 8 MHz or above, keep clock and data trace lengths matched within 5 mm to avoid skew. Place a 33 ohm series damping resistor near the MCU clock pin if the load capacitance exceeds 25 pF. For I2C buses exceeding 100 kHz with multiple slaves, add 4.7 kohm pull-up resistors (not 10 kohm) on SDA and SCL to ensure rise time compliance per the I2C specification.
Compliance Information
RoHS compliant per Microchip product page. The 'I' (industrial) grade is -40C to +85C; the 'E' (extended) grade variant PIC16LF1824-E/JQ supports -40C to +125C. Not AEC-Q100 qualified in standard I-grade - contact Microchip for AEC-Q100 automotive variants.
