PIC16LF1823-I/P - 8-bit 32MHz XLP MCU 3.5KB Flash | Microchip
MPN: PIC16LF1823-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.42 | $1.42 |
| 10 | $1.27 | $12.70 |
| 100 | $1.04 | $104.00 |
| 500 | $0.92 | $460.00 |
| 1,000 | $0.83 | $830.00 |
PIC16LF1823-I/P Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, non-volatile storage, and programmable peripherals. The PIC16LF1823 belongs to the Microchip 8-bit PIC16 family, which sits inside the broader PIC product line, the 8-bit MCU category, and ultimately the embedded controller hierarchy. The 'LF' prefix denotes the wide-voltage 1.8V-3.6V variant designed for ultra-low-power XLP applications.
Key features include an internal 32 MHz oscillator (factory calibrated to within +/-1 percent), an integrated 16-level hardware comparator, multiple 10-bit PWM modules, a Master Synchronous Serial Port (MSSP) supporting SPI and I2C (both Master and Slave), an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART) with auto-baud detect, a 10-bit Analog-to-Digital Converter (ADC) with up to 12 channels, and an on-chip temperature indicator. The device also offers multiple power-managed operating modes such as Run, Doze, Idle, and Sleep with ultra-low Sleep currents.
The PIC16LF1823 uses a 14-bit instruction word RISC architecture with a hardware stack and interrupt controller supporting both core and peripheral interrupt sources. nanoWatt XLP technology provides Sleep currents down to the low-nanoampere range and Run currents in the tens of microamperes per MHz, making the device well suited to battery-powered designs. The integrated peripherals and configurable oscillator eliminate the need for many external components.
Typical applications include IoT sensor nodes, wearable fitness and medical devices, remote controls, battery-powered instrumentation, low-power wireless sensor networks, and consumer white goods. The combination of small package, low power, and rich peripherals also makes it suitable for general-purpose logic replacement in mixed-signal products.
When designing with this MCU, allocate the budget for the ICD debugging header or pinout, since several I/O pins share analog and debug functions. The LF variant requires a 1.8V-3.6V supply; for designs that need 5V tolerance, use the PIC16F1823 family instead. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the bare manufacturer datasheet.
Drop-in alternatives for PIC16LF1823-I/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 PIC16LF1823-I/P (same form factor and footprint) — differing in ADC, Package, Operating Temperature, Data SRAM, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1823-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1823-I/SL
✅ Drop-In✓ In Stock
$0.95 / Unit
View Datasheet →PIC16LF1823-E/P
✅ Drop-In✓ In Stock
$0.64 / Unit
View Datasheet →PIC16LF1823-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1823T-I/SL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.92 / Unit
View Datasheet →PIC16LF1823-I/P Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC16 enhanced mid-range RISC |
| Instruction Set Width | 14-bit |
| Maximum CPU Clock | 32 MHz |
| Instruction Cycle | 200 ns |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| Data SRAM | 128 bytes |
| Data EEPROM | 256 bytes |
| Operating Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 12 |
| Package | 14-pin PDIP (P) |
| Mounting Type | Through-hole |
| ADC | 10-bit, up to 12 channels |
| Internal Oscillator | 32 MHz, factory calibrated |
| Serial Interfaces | MSSP (SPI/I2C), EUSART |
| Operating Temperature Range | -40C to +85C (Industrial) |
| Low-Power Technology | nanoWatt XLP |
| RoHS Status | Compliant |
PIC16LF1823-I/P Pin Configuration
| Pin 1 | RA5/SS/HLVDIN/VCAP — Bidirectional I/O; SPI Slave Select; High/Low-Voltage Detect input; voltage regulator capacitor |
| Pin 2 | RA4/AN3/T1G/OSC2/CLKOUT — Bidirectional I/O; analog channel 3; Timer1 gate; crystal oscillator output; CLKOUT |
| Pin 3 | RA3/MCLR/VPP — Bidirectional I/O; Master Clear reset input (active low); programming voltage input |
| Pin 4 | RA2/AN2/T0CKI/INT/COG1FLT — Bidirectional I/O; analog channel 2; Timer0 clock input; external interrupt; PWM fault input |
| Pin 5 | RA1/ICSPCLK/AN1/VREF+/DAC1OUT — Bidirectional I/O; ICSP clock; analog channel 1; ADC positive reference; DAC1 output |
| Pin 6 | RA0/ICSPDAT/AN0/ULPWU/C1IN+/DAC1REF+ — Bidirectional I/O; ICSP data; analog channel 0; ultra-low-power wake-up; comparator input |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VOUT — Internal voltage regulator output (decoupling required) |
| Pin 9 | VDD — Positive supply voltage (1.8V to 3.6V) |
| Pin 10 | RC0/AN4/C2IN+/P1B — Bidirectional I/O; analog channel 4; comparator input; PWM1 complementary output |
| Pin 11 | RC1/AN5/C2IN-/P1C — Bidirectional I/O; analog channel 5; comparator input; PWM1 output |
| Pin 12 | RC2/AN6/P1D/C2OUT — Bidirectional I/O; analog channel 6; PWM1 output; comparator2 output |
| Pin 13 | RC3/AN7/SS/C1OUT/P1A — Bidirectional I/O; analog channel 7; SPI Slave Select; comparator1 output; PWM1 output |
| Pin 14 | RC4/MDOUT/SDA/T1G/SDO — Bidirectional I/O; modulation output; I2C data; Timer1 gate; SPI data out |
Typical Applications
PIC16LF1823-I/P is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Wearable Fitness and Health Devices, Remote Controls and Consumer IR Nodes, Industrial Sensor Transmitters, Low-Power Wireless Sensor Networks, Battery-Powered Instrumentation.
Battery-Powered IoT Sensor Nodes
The PIC16LF1823-I/P's nanoWatt XLP Sleep current in the low-nanoampere range and Run current around 50 microamperes per MHz make it ideal for IoT sensor nodes powered by coin cells or 2xAA batteries. The wide 1.8V-3.6V supply range matches the discharge curve of Li-coin and alkaline chemistries directly, eliminating boost regulators. The internal 32 MHz oscillator factory calibrated to within one percent removes the need for an external crystal, shrinking the BOM. With 3.5 KB of Flash, the device comfortably fits BLE/Zigbee host stacks, periodic sensor reads, and OTA-friendly bootloaders for environments that spend most of their time in Sleep and wake briefly to sample and transmit.
Recommended
Wearable Fitness and Health Devices
Wearable fitness bands and health patches demand tiny footprints, microampere Sleep currents, and integrated analog channels for heart-rate, SpO2, and temperature sensing. The PIC16LF1823-I/P delivers nanoWatt XLP Sleep plus a 10-bit ADC with up to 12 channels that can be routed directly to on-body electrodes or external sensor front-ends. The MSSP (SPI/I2C) interfaces connect to low-power accelerometers and PPG sensors without external glue logic. The 1.8V-3.6V rail lets the MCU run directly from a single Li-coin cell, while the 14-pin PDIP package is friendly to hand-rework prototypes before committing to SOIC-14 or QFN-16 for production.
Recommended
Remote Controls and Consumer IR Nodes
Consumer remote controls spend 99 percent of their life in Sleep and only wake on a button press, which is exactly the workload profile that the PIC16LF1823-I/P is optimized for. nanoWatt XLP Sleep keeps battery replacement cycles measured in years, while the integrated EUSART and PWM modules can synthesize IR carrier waveforms without an external timer IC. The internal 32 MHz oscillator provides accurate carrier frequency without external components, and the 1.8V-3.6V supply works directly from 2xAAA alkaline cells. Designers can use the 12 I/O pins to scan a 4x4 keypad matrix plus LED indicators while staying inside the 3.5 KB Flash budget for the keypad scanner, IR protocol stack, and low-battery detection code.
Recommended
Industrial Sensor Transmitters
Industrial 4-20mA loop-powered sensor transmitters benefit from the PIC16LF1823-I/P's industrial -40C to +85C temperature range and 1.8V-3.6V operation that fits inside a regulated 3.3V rail derived from the loop. The 10-bit ADC with up to 12 channels digitizes bridge, RTD, or thermocouple signals, while the integrated op-amp peripherals on similar PIC16LF devices can be substituted for first-stage signal conditioning. The MSSP (SPI/I2C) provides digital communication to a HART modem or external EEPROM for calibration constants. With 3.5 KB Flash, the device hosts linearization, PID, and HART Universal Command code in production sensor heads.
Recommended
Low-Power Wireless Sensor Networks
Wireless sensor network nodes using sub-GHz transceivers such as the Microchip MRF89XA or 2.4 GHz modules like the RN4870 rely on a host MCU that sleeps deeply and wakes the radio only when data is ready. The PIC16LF1823-I/P's nanoWatt XLP Sleep draws single-digit microampere currents and wakes in microseconds via interrupts, preserving battery life across thousands of transmissions. The MSSP (SPI) port directly drives the radio's command interface, and the EUSART can be used as a backup UART link for factory programming. The internal 32 MHz oscillator and 1.8V-3.6V supply reduce external components and simplify the PCB to fit inside a sensor node the size of a coin.
Recommended
Battery-Powered Instrumentation
Handheld multimeters, clamp meters, and portable test instruments rely on a low-power MCU to drive an LCD, read rotary switches, and run autoranging algorithms on a 9V or 4xAA battery pack. The PIC16LF1823-I/P's 1.8V-3.6V operation, internal 32 MHz oscillator, and 10-bit ADC give it the precision and speed needed for signal conditioning and RMS calculation. nanoWatt XLP technology allows the device to idle between measurements while keeping the LCD refresh running, which is the dominant power draw in many handheld meters. The 14-pin PDIP package simplifies field-reworkable designs, and 3.5 KB Flash is sufficient for autoranging, peak-hold, and true-RMS math libraries.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1823-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1823-I/P | PIC16LF1823-E/P | PIC16LF1823-I/SL | PIC16LF1823-I/ML |
|---|---|---|---|---|---|
| Package | 14-pin PDIP (P) | 14-pin PDIP (P) - same | 14-pin PDIP (P) - same | 14-pin SOIC-150 (SL) - SMD variant | 16-pin QFN (ML) - SMD variant |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 3.5 KB (2K x 14) | 3.5 KB (2K x 14) | 3.5 KB (2K x 14) | 3.5 KB (2K x 14) | 3.5 KB (2K x 14) |
| Operating Voltage Range | 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 |
| Operating Temperature Range | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| I/O Pins | 12 | 12 | 12 | 12 | 12 |
| Maximum CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| ADC | 10-bit, 12 channels | 10-bit, 12 channels | 10-bit, 12 channels | 10-bit, 12 channels | 10-bit, 12 channels |
| Low-Power Technology | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP |
Key Differentiators
- Lowest-voltage variant in the PIC16F1823 family with nanoWatt XLP Sleep (vs PIC16F1823-I/P)
- Extended-temperature grade option in the same 14-pin PDIP package (vs PIC16LF1823-E/P)
- Through-hole PDIP footprint for prototype-friendly hand assembly (vs PIC16LF1823-I/SL (SOIC-14) and PIC16LF1823-I/ML (QFN-16))
Design Notes
Always connect a 100 nF decoupling capacitor as close as physically possible to the VDD pin (pin 9) and a second 100 nF capacitor at the VOUT pin (pin 8) to filter the internal regulator. The PIC16LF1823's core runs from an internal regulator powered by VDD; without the VOUT decoupling capacitor the regulator may oscillate and cause erratic resets. For battery designs with large transient loads (such as a radio wake-up), add a 10 uF bulk capacitor at VDD as well to prevent VDD from dipping below 1.8V and triggering brown-out reset.
The MCLR pin (RA3, pin 3) is active-low reset. If left floating, the device can randomly enter programming mode or reset. Always tie MCLR to VDD through a 10 kohm pull-up resistor. For ICSP programming, the MCLR line is driven by the programmer; ensure the pull-up does not fight the programmer signal. The ICSPDAT and ICSPCLK pins (RA0/RA1) must not be loaded with high-impedance signals that would prevent ICSP communication; check that any external pull-ups on RA0/RA1 are not stronger than 4.7 kohm.
Route the ICSP signals (ICSPCLK on RA1, ICSPDAT on RA0) directly to a 5-pin or 6-pin header that is accessible on the PCB even after final assembly. Many production programmers, including PICkit 5, MPLAB ICD 4, and MPLAB SNAP, require direct access to MCLR/VPP, VDD, VSS, ICSPCLK, and ICSPDAT. Add a clearly labeled TAG-CONNECT or similar footprint so that field updates and factory programming are not blocked by the enclosure or by connectors.
When using the ADC, place a 100 nF bypass capacitor at the VDD pin and add a small RC filter (typically 1 kohm and 100 nF) at the analog input to limit source impedance below the ADC's recommended 10 kohm maximum. For high-impedance sensors such as thermistors or resistive bridges, use an op-amp buffer to drive the analog channel. The internal voltage reference drift is typically +/- 50 ppm/C, so for precision measurements above 12-bit equivalent, use an external reference or the DAC output as the reference.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - for automotive applications use AEC-Q100 qualified PIC16F1823 variants or PIC18 K-series with explicit automotive qualification. Lead-free and halogen-free per Microchip material declaration.
