PIC16F1824-I/P - 8-Bit 32MHz MCU, 7KB Flash, XLP, 14-PDIP | Microchip
MPN: PIC16F1824-I/P β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.3188 | $2.32 |
| 10 | $2.09 | $20.90 |
| 100 | $1.85 | $185.00 |
| 500 | $1.65 | $825.00 |
| 1,000 | $1.48 | $1,480.00 |
PIC16F1824-I/P Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, peripherals and I/O on one die, and the 8-bit PIC microcontroller family uses a Harvard-architecture RISC core that executes one instruction per clock cycle (except branches) for predictable timing. PIC microcontrollers sit within the broader taxonomy of embedded microcontrollers -> microcontrollers -> semiconductor ICs, and the PIC16F family occupies the "enhanced mid-range" tier above PIC10/12/14 base-line parts and below PIC18 high-performance parts. XLP technology adds deep sleep modes in the nanoamp range for battery-powered designs.
Key features include the 49-instruction enhanced mid-range core with 16-level hardware stack and automatic context saving, an integrated 32 MHz high-speed internal oscillator (HFINTOSC), 12 I/O pins with individual interrupt-on-change capability, an on-chip 10-bit ADC with up to 8 channels, two 8-bit timers plus one 16-bit timer, a 16-bit PWM module, capture/compare/PWM (ECCP) peripherals, an EUSART, MSSP supporting SPI and I2C (master and slave), mTouch capacitive sensing hardware, and an integrated temperature indicator. The 14-pin PDIP package also exposes the ICSP (In-Circuit Serial Programming) interface for low-voltage or high-voltage in-circuit programming and debugging.
Architecture-wise the PIC16F1824 uses Microchip's enhanced mid-range 8-bit core built on a CMOS process with proprietary XLP power-management IP, achieving typical sleep currents in the tens of nanoamps at 1.8V. The wide 2.3V-5.5V Vdd range allows direct connection to 2xAA/2xAAA batteries, 3.3V rails and 5V rails without level translation. The 32 MHz internal oscillator eliminates external crystals in cost-sensitive designs and supports field calibration to within +/-1% across temperature.
Typical applications include low-power IoT sensor nodes, capacitive touch user interfaces (buttons, sliders, proximity), battery-powered remote controls and wearables, automotive interior accessories, HVAC thermostat controls, and small motor control loops using the ECCP module. The 14-pin PDIP form factor is also widely used in hobbyist, educational and breadboard-friendly designs.
When designing with this part, populate the configuration words deliberately (oscillator selection, watchdog timer, code protection, brown-out reset) before enabling peripherals, and verify the ICSP pins are accessible on the PCB. The mTouch module requires firmware calibration; allow a tuning capacitor on the dedicated CTMU charge pump pin if your PCB layout introduces stray capacitance.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16F1824-I/P 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 PIC16F1824-I/P (same form factor and footprint) β differing in ADC, PWM Modules, Package, Timers, I/O Pins.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16F1825-I/P
β Drop-Inβ In Stock
$1.23 / Unit
View Datasheet βPIC16F1823-I/P
β Drop-Inπ Reference alternative (not in catalog)
PIC16LF1824-I/P
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
PIC16F1824-I/P Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit enhanced mid-range |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data RAM | 256 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage (Vdd) | 2.3 V to 5.5 V |
| I/O Pins | 12 |
| ADC | 10-bit, up to 8 channels |
| Timers | 2x 8-bit, 1x 16-bit |
| PWM Modules | ECCP + 2x 16-bit PWM |
| Communication | EUSART, MSSP (SPI/I2C) |
| Touch Sensing | mTouch with CTMU |
| Internal Oscillator | 32 MHz HFINTOSC +/-1% |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 14-pin PDIP (0.300 inch, 7.62 mm) |
| Instruction Set | 49 instructions, 16-level stack |
| Programming | ICSP (high-voltage and low-voltage) |
PIC16F1824-I/P Pin Configuration
| Pin 1 | VDD β Positive supply voltage (2.3V to 5.5V) |
| Pin 2 | RA5/AN4/C2OUT/SRQ/CCP1/T1CKI β I/O / Analog ch4 / Comparator 2 out / SR latch Q / ECCP1 PWM / Timer1 clock |
| Pin 3 | RA4/AN3/C1OUT/SRN/CCP4 β I/O / Analog ch3 / Comparator 1 out / SR latch not-Q / PWM4 |
| Pin 4 | RA3/MCLR/VPP β I/O / Master Clear reset (active low) / Programming voltage |
| Pin 5 | RC5/CCP2 β I/O / PWM2 output |
| Pin 6 | RC4/C2IN+/AN6 β I/O / Comparator 2 in+ / Analog ch6 |
| Pin 7 | RC3/AN7/C1IN+/P1D/SS β I/O / Analog ch7 / Comparator 1 in+ / PWM1D / SPI slave select |
| Pin 8 | RC2/AN6/C1IN-/P1C β I/O / Analog ch6 / Comparator 1 in- / PWM1C |
| Pin 9 | RC1/AN5/C2IN-/P1B/SDA/SDI β I/O / Analog ch5 / Comparator 2 in- / PWM1B / I2C data / SPI data in |
| Pin 10 | RC0/AN4/P1D/SCL/SCK β I/O / Analog ch4 / PWM1D / I2C clock / SPI clock |
| Pin 11 | RA2/AN2/C1OUT/T0CKI β I/O / Analog ch2 / Comparator 1 out / Timer0 clock input |
| Pin 12 | RA1/AN1/C1IN0-/ICSPCLK/VCAP β I/O / Analog ch1 / Comparator 1 in- / ICSP clock / core voltage decoupling |
| Pin 13 | RA0/AN0/C1IN+/ICSPDAT β I/O / Analog ch0 / Comparator 1 in+ / ICSP data |
| Pin 14 | VSS β Ground reference |
Typical Applications
PIC16F1824-I/P is suitable for 8 applications: Battery-Powered Capacitive Touch User Interface, Industrial Sensor Node with I2C Bus, Automotive Interior Lighting Controller, Small Motor Control (DC Brushed, Stepper), Remote Control / RF Transmitter Endpoint, Educational / Hobbyist Microcontroller Learning Platform, Smart Home / IoT Edge Sensor, HVAC Thermostat Controller.
Battery-Powered Capacitive Touch User Interface
The PIC16F1824-I/P's integrated mTouch CTMU (Charge Time Measurement Unit) charge pump and 32 MHz internal oscillator make it ideal for battery-powered capacitive touch buttons, sliders and proximity sensors. The XLP nanoWatt technology delivers typical sleep currents in the tens of nanoamps at 1.8V, enabling coin-cell-powered remote controls to last for years on a single battery. The 14-pin PDIP package suits breadboard prototyping and small-volume appliance front panels. The 7 KB Flash holds mTouch firmware plus state machines for wake-on-touch plus capacitive-to-digital conversion. Unlike an external touch IC solution, the CTMU runs entirely inside the MCU so no additional chip is needed, saving BOM cost and PCB area. The 2.3V-5.5V supply range supports 2xAA, 3xAAA and single-cell LiFeS2 chemistries directly.
Recommended
Industrial Sensor Node with I2C Bus
The PIC16F1824-I/P's MSSP I2C master/slave peripheral and 10-bit ADC make it well suited to industrial sensor nodes reading temperature, humidity, pressure or gas sensors over I2C. The 256-byte data RAM buffers small I2C packets, and the 256-byte EEPROM stores calibration coefficients that survive power cycling without external NVM. The industrial -40C to +85C operating range matches harsh factory environments, and the wide 2.3-5.5V Vdd tolerates 24V bus drops through a regulator. EUSART enables simultaneous RS-485 communication to a PLC or gateway. Compared with discrete microcontroller-plus-transceiver designs, integrating EUSART and I2C on one die cuts part count and improves long-term availability because the part is Microchip catalog-active.
Recommended
Automotive Interior Lighting Controller
For automotive interior lighting, mood lamps and LED indicator strips, the PIC16F1824-I/P delivers 12 I/O pins and PWM modules that drive constant-current LED drivers or MOSFET gates. The ECCP (Enhanced Capture/Compare/PWM) module supports center-aligned PWM for smooth color fades, while the two 16-bit PWM modules handle RGB channels independently. The wide 2.3-5.5V supply tolerates 12V automotive battery transients through a pre-regulator, and the industrial temperature grade covers cabin environments. The 7 KB Flash fits CAN/LIN soft-stack protocol handlers for body-electronics modules. Although not AEC-Q100 qualified, this industrial-grade part is widely used in non-safety cabin systems. Compared with discrete 555-timer PWM circuits, software PWM enables color mixing, dim curves and diagnostics in firmware.
Recommended
Small Motor Control (DC Brushed, Stepper)
The PIC16F1824-I/P's ECCP module with complementary PWM outputs and configurable dead-band suits small brushed DC and bipolar stepper motor control loops up to a few hundred milliamps. The 32 MHz instruction rate provides 8 MIPS of throughput for closed-loop PID updates at 1 kHz without DSP overhead. Hardware quadrature encoder support and 16-bit timer capture modes simplify position feedback. The 14-pin PDIP package through-hole pads accept easy wiring to discrete H-bridge driver ICs. Compared with a dedicated motor-control DSPIC, the PIC16F1824 sacrifices DSP performance but costs one-third as much for simple fans, valves and actuator stages. The XLP nanoWatt sleep mode enables battery backup during standby.
Recommended
Remote Control / RF Transmitter Endpoint
For 433/915 MHz ISM-band remote controls, key fobs and simple sensor beacons, the PIC16F1824-I/P combines low-cost 8-bit processing with sub-microamp XLP sleep to extend coin-cell battery life. Its MSSP SPI master can drive an external sub-GHz radio like the CC1101 or SX1276 directly, while the EUSART supports UART-based modules. The 12 I/O pins accept multiple push-buttons or rotary encoders for user input. The 7 KB Flash holds small RF protocol stacks (LoRaWAN device, proprietary OOK/FSK) and application code simultaneously. Compared with a dedicated wireless MCU like the CC1310, this two-chip solution is more flexible on the application side and easier to source long-term across multiple regions.
Recommended
Educational / Hobbyist Microcontroller Learning Platform
The PIC16F1824-I/P's 14-pin PDIP through-hole package is breadboard-friendly, making it ideal for educational settings, hobbyist kits and university embedded-systems labs. The 7 KB Flash plus 256-byte RAM fits textbook examples for digital I/O, timers, ADC, UART and SPI without running out of memory. Microchip's MPLAB X IDE, XC8 compiler and PICkit 3/4 programmer support this device natively, providing students a free toolchain with simulator, debugger and C compiler. The wide 2.3-5.5V supply accepts USB-powered 5V and battery-powered 3.3V lab supplies. The mTouch CTMU also lets educators demonstrate capacitive sensing in one lab. Compared with Arduino UNO's ATmega328P, this PIC16F1824 is a closer look at bare-metal MCU development without abstraction layers.
Recommended
Smart Home / IoT Edge Sensor
For edge IoT nodes measuring temperature, light, motion or occupancy, the PIC16F1824-I/P delivers XLP nanoWatt sleep currents under 50 nA, enabling multi-year battery life on a single 3V coin cell. The internal 32 MHz oscillator eliminates external crystals, reducing both cost and BOM count, and the 10-bit ADC with 8 channels handles multiple analog sensor inputs simultaneously. The MSSP I2C master reads low-cost digital sensors, while the EUSART bridges to Bluetooth Low Energy modules like the RN4871. The industrial temperature grade supports outdoor and basement installations. Compared with low-power ARM Cortex-M0+ parts like the SAMD21, the PIC16F1824 costs less and is easier to source in legacy supply chains, at the price of lower MIPS and RAM.
Recommended
HVAC Thermostat Controller
The PIC16F1824-I/P suits HVAC thermostat and building-automation controllers, where its 32 MHz core handles temperature averaging, hysteresis control and seven-day scheduling, and its multiple PWM outputs drive triac gates for furnace and fan stages. The wide 2.3-5.5V supply accepts 24VAC wall power through a rectifier/regulator, while the -40C to +85C industrial grade handles plenum-mounted enclosures. The 12 I/O pins accept up/down buttons, mode selectors, LCD module control and humidity sensor inputs via ADC. The 256-byte EEPROM stores user settings across power outages. The mTouch CTMU supports modern glass-front-panel touch buttons without a dedicated touch IC, reducing BOM and improving aesthetic design.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1824-I/P β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1825-I/P | PIC16F1823-I/P | PIC16LF1824-I/P | PIC16F1824-I/SL |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-pin PDIP | 14-pin PDIP | 14-pin PDIP | 14-pin PDIP | SOIC-14 |
| Flash Memory | 7 KB | 14 KB | 3.5 KB | 7 KB | 7 KB |
| RAM | 256 B | 1 KB | 128 B | 256 B | 256 B |
| Maximum Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage | 2.3V - 5.5V | 2.3V - 5.5V | 2.3V - 5.5V | 1.8V - 3.6V | 2.3V - 5.5V |
| I/O Pins | 12 | 12 | 12 | 12 | 12 |
| Touch Sensing | Yes (mTouch + CTMU) | Yes (mTouch + CTMU) | No | Yes (mTouch + CTMU) | Yes (mTouch + CTMU) |
| Approximate 1k Price (USD) | 1.48 | 1.65 | 1.35 | 1.55 | 1.40 |
Key Differentiators
- Double the Flash and RAM versus PIC16F1823-I/P (vs PIC16F1823-I/P)
- Memory-upgrade path within same package and pinout (vs PIC16F1825-I/P)
- Lower-voltage silicon option for sub-3V designs (vs PIC16LF1824-I/P)
- Surface-mount SOIC variant for automated assembly (vs PIC16F1824-I/SL)
Design Notes
The PIC16F1824-I/P's nanoWatt XLP technology delivers typical sleep currents below 50 nA with the 32 MHz HFINTOSC gated off. Use the SLEEP instruction and configure all unused peripherals to idle state via PMDx and CMxCON0 registers. Tie the MCLR pin high through a 10k pull-up resistor unless an external reset circuit is needed; floating MCLR can cause spurious resets in noisy environments. Add a 100 nF decoupling capacitor directly between VDD and VSS pins, as close to the package as possible, with a 10 uF bulk capacitor on the supply rail.
Reserve the ICSP pins (RA0/ICSPDAT, RA1/ICSPCLK/Vcap, MCLR/VPP) for programming access on prototype PCBs - do not load them with circuits that prevent programming. A 4.7k to 10k resistor on MCLR to VDD is acceptable, but if the ICSP header is on the production PCB, isolate MCLR through a diode or jumper for in-circuit programming. Keep analog and digital traces separated to avoid ADC noise coupling on AN0-AN7 inputs. For mTouch CTMU designs, surround the touch electrodes with a ground hatch to focus the electric field toward the human finger.
Do not forget to configure the configuration words: oscillator selection (FOSC), watchdog timer enable (WDTE), brown-out reset (BOREN), code protection (CPD, CP), and low-voltage programming (LVP). Leaving LVP enabled on a 14-pin PDIP where pin 4 is RA3/MCLR/VPP can cause the device to enter programming mode unintentionally if the pin is pulled high. For high-voltage ICSP, set LVP=OFF in the configuration word. Also note that PIC16F (Flash) and PIC16LF (Low-Voltage Flash) variants are different silicon with different Vdd ranges - do not interchange them outside their rated voltage windows.
Estimated: At maximum 32 MHz operation with all peripherals active, the typical core supply current is around 5-7 mA at 5V, dissipating approximately 25-35 mW of power. At -40C industrial minimum and +85C industrial maximum, the silicon is rated for full-speed operation. The 14-pin PDIP package has no exposed thermal pad, so all heat is dissipated through the DIP leads. Junction temperature is well below the 150C absolute maximum under normal operating conditions and the part does not require a heatsink. (Estimate based on typical PIC16F1824 datasheet current figures.)
When using the 32 MHz HFINTOSC, allow at least 2 ms startup time before switching to HFINTOSC as the system clock after wake-up from sleep. The internal PLL is not used on this part (unlike PIC16F1xxx with PLL), so FOSC=32 MHz HFINTOSC means CPU runs directly at 32 MHz with 4:1 instruction cycle (8 MIPS). For UART, ensure the calculated baud-rate error stays below +/-2% by choosing BRGH and SPBRG values carefully; HFINTOSC factory calibration is +/-1% across temperature, so error budget is dominated by divisor rounding. For I2C, the MSSP module supports standard 100 kHz and fast 400 kHz modes with internal weak pull-ups active - add external 4.7k pull-ups for reliable bus operation with multiple slaves.
Compliance Information
RoHS and REACH compliance per Microchip product page. Industrial -40C to +85C temperature grade, not AEC-Q100 qualified - for automotive safety applications choose a PIC16F1xxx AEC-Q100 variant or a PIC18 automotive part.
