PIC16LF1823T-I/SL - 8-bit XLP MCU, 3.5KB Flash, 32MHz, 14-SOIC | Microchip
MPN: PIC16LF1823T-I/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.62 | $1.62 |
| 10 | $1.47 | $14.70 |
| 100 | $1.31 | $131.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $1.05 | $1,050.00 |
| 3,300 | $0.92 | $3,036.00 |
PIC16LF1823T-I/SL Overview
An 8-bit PIC microcontroller is a RISC-based embedded controller that integrates a CPU core, non-volatile program memory, working RAM, data EEPROM, and a rich set of peripherals into a single chip. Within the broader taxonomy, PIC16F/LF parts sit between the smaller PIC10/PIC12 baseline family and the more capable PIC18 and dsPIC33 families; they form the workhorse of low-power, cost-sensitive embedded designs that need more horsepower than an 8-pin baseline MCU but do not justify the cost of a Cortex-M0 part.
Key features of the PIC16LF1823T-I/SL include 12 I/O pins with interrupt-on-change support, an on-chip 32MHz internal oscillator eliminating the need for an external crystal, a 10-bit ADC with computation, multiple communication interfaces (UART, SPI, I2C), and 2 capture/compare/PWM modules. XLP technology enables typical active current of 1.8 uA at 1 MHz and sleep current down to 20-50 nA, making the part suitable for battery-powered IoT endpoints that spend most of their life in standby.
The device uses Harvard architecture with a 14-bit instruction word and a 16-level deep hardware stack. Integrated peripherals include the Configurable Logic Cell (CLC), Complementary Waveform Generator (CWG), Numerically Controlled Oscillator (NCO), and Zero-Cross Detection (ZCD) modules, which allow sophisticated timing and signal conditioning without external components.
Typical applications include low-power wireless sensor nodes, battery-powered remote controls, consumer electronics with always-on standby, IoT edge nodes, wearable health patches, and small industrial sensor transmitters. The wide 1.8-3.6V range lets it run directly from a single CR2032 or two AA batteries without a boost converter.
When designing with this device, reserve a dedicated ICSP header (PGM/RB6, PGD/RB7, MCLR/VPP) even in production boards - field firmware updates are common and removing the header leads to costly rework. Also note that the LF suffix designates the wide-range 1.8V-3.6V variant; substituting the non-LF PIC16F1823 will reduce the lower voltage limit to 2.3V and may brick a 1.8V design.
This page synthesizes distributor pricing, same-package drop-in alternatives across Microchip and competing vendors, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16LF1823T-I/SL — 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 PIC16LF1823T-I/SL (same form factor and footprint) — differing in Package, ADC, Core Architecture, Operating Temperature, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1823-I/SL
✅ Drop-In✓ In Stock
$0.95 / Unit
View Datasheet →PIC16LF1823-E/SL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.98 / Unit
View Datasheet →PIC16LF1823-I/P
✅ Drop-In✓ In Stock
$0.83 / Unit
View Datasheet →PIC16F1823T-I/SL
✅ Drop-In✓ In Stock
$0.66 / Unit
View Datasheet →PIC16F1823-I/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1823T-I/JQ
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16LF1704-I/SL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.92 / Unit
View Datasheet →PIC16LF1823T-I/SL Maximum Ratings & Electrical Characteristics
| Product Family | PIC16F/LF1823 |
| Core | PIC16 (Enhanced Mid-Range 8-bit) |
| CPU Architecture | Harvard, 14-bit instruction, RISC |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| Data RAM | 128 B |
| Data EEPROM | 256 B |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| I/O Pins | 12 |
| ADC | 10-bit, 8-channel |
| Timers | 4 (8-bit and 16-bit) |
| CCP Modules | 2 |
| Communication | UART, SPI, I2C (MSSP) |
| PWM Outputs | Yes |
| Operating Temperature | -40C to +85C (Industrial, 'I') |
| Package | 14-SOIC (SL), 3.9 mm body width |
| MSL Level | 1 |
| RoHS Status | Compliant |
PIC16LF1823T-I/SL Pin Configuration
| Pin 1 | RA5/MCLR/VPP — General I/O / Master Clear reset (active-low) / ICSP programming voltage |
| Pin 2 | RA3/AN3/C1IN+/C1OUT — General I/O / ADC input channel 3 / Comparator 1 non-inverting input |
| Pin 3 | RA4/AN4/T0CKI — General I/O / ADC input channel 4 / Timer0 clock input |
| Pin 4 | RA2/AN2 — General I/O / ADC input channel 2 |
| Pin 5 | RA1/AN1/ICSPCLK — General I/O / ADC input channel 1 / ICSP clock |
| Pin 6 | RA0/AN0/ICSPDAT — General I/O / ADC input channel 0 / ICSP data |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — Positive supply, 1.8V to 3.6V |
| Pin 9 | RB7/TX/CK — General I/O / UART asynchronous transmit or synchronous clock |
| Pin 10 | RB6/RX/DT — General I/O / UART asynchronous receive or synchronous data |
| Pin 11 | RB5/AN11 — General I/O / ADC input channel 11 |
| Pin 12 | RB4/AN10 — General I/O / ADC input channel 10 |
| Pin 13 | RB3/CCP2 — General I/O / Capture-Compare-PWM channel 2 |
| Pin 14 | RB2/CCP1 — General I/O / Capture-Compare-PWM channel 1 |
Typical Applications
PIC16LF1823T-I/SL is suitable for 7 applications: Battery-Powered Wireless Sensor Node, Consumer Remote Control / IR Transmitter, Industrial Sensor Transmitter (4-20 mA / Loop Powered), Wearable Health Patch / Disposable Medical Sensor, Smart Home IoT Endpoint (Zigbee/BLE), LED Lighting Controller / Dimmer, Automotive Body Electronics (Sub-System Node).
Battery-Powered Wireless Sensor Node
The PIC16LF1823T-I/SL's 50 nA sleep current and 1.8-3.6V operating range make it a strong fit for sub-1GHz or BLE sensor nodes that spend 99% of their life in standby. The 32 MHz internal oscillator eliminates the external crystal, while the integrated 10-bit ADC samples analog sensors without a companion front-end IC. Across the 12 I/O pins you can drive an SPI radio, read multiple analog channels, and wake on an interrupt. Compared with a Cortex-M0 alternative, the PIC16LF1823 cuts sleep current by roughly 10x and bill-of-materials cost by 30-40% in this scenario.
Recommended
Consumer Remote Control / IR Transmitter
For handheld IR remote controls the PIC16LF1823T-I/SL provides a CCP/PWM channel for 38 kHz carrier generation, an interrupt-on-change pin for the keypad matrix, and XLP sleep current low enough to deliver multi-year battery life on a coin cell. The 3.5 KB Flash accommodates a standard RC5/RC6 or NEC protocol stack with margin for product-specific button maps. The internal oscillator holds carrier frequency within +/- 1% across the industrial temperature range, eliminating the trim capacitor required by RC-based designs.
Recommended
Industrial Sensor Transmitter (4-20 mA / Loop Powered)
The wide 1.8-3.6V VDD range lets the PIC16LF1823T-I/SL operate from the 3.3V shunt rail of a loop-powered 4-20 mA transmitter with no boost converter, reducing BOM and quiescent losses. The MSSP peripheral drives an HART modem or SPI DAC, while the CLC and NCO blocks implement signal conditioning without external logic. UART output simplifies integration with a downstream display or wireless gateway. Compared with discrete op-amp solutions this integrated approach shrinks the analog front-end by roughly 50% PCB area.
Recommended
Wearable Health Patch / Disposable Medical Sensor
Disposable health patches benefit from the PIC16LF1823T-I/SL's XLP sleep profile, which holds standby current at roughly 50 nA and lets a 3V coin cell run the device for 30+ days of continuous heart-rate or temperature logging. The 10-bit ADC is sufficient for skin-contact temperature and single-lead ECG front-ends after analog amplification. The 14-SOIC package is small enough to fit in a 25 mm x 35 mm patch form factor. Medical designers should still confirm IEC 60601-1 EMI/ESD margins in the final assembly.
Recommended
Smart Home IoT Endpoint (Zigbee/BLE)
In Zigbee or BLE end-device roles the PIC16LF1823T-I/SL serves as a host MCU that wakes from sleep on an interrupt, takes a sensor reading, and pushes the value over UART to a radio co-processor. The 32 MHz CPU runs a small protocol bridge or local decision logic between radio events. Power sequencing of the radio is handled by a dedicated GPIO, and the wide VDD range supports direct connection to a CR2032 or 2xAA battery stack. Typical end-device average current is dominated by the radio, so the MCU's 50 nA sleep floor is rarely the limiting factor.
Recommended
LED Lighting Controller / Dimmer
The PIC16LF1823T-I/SL's Complementary Waveform Generator (CWG) and Zero-Cross Detection (ZCD) peripherals implement phase-controlled TRIAC dimming or PWM LED dimming without external timing ICs. The 32 MHz CPU computes dim curves in firmware, while the 10-bit ADC reads ambient light or supply voltage for closed-loop control. Power consumption is dominated by the load, so the MCU's XLP characteristics matter mostly for standby after the lights are switched off.
Recommended
Automotive Body Electronics (Sub-System Node)
Within a body-electronics module - window lift, mirror control, or seat position sensor - the PIC16LF1823T-I/SL handles local I/O expansion and LIN slave communication via the UART peripheral. The industrial -40C to +85C temperature rating is suitable for cabin-mounted nodes but not for under-hood use. The 14-SOIC package provides strong mechanical retention on FR-4 substrates exposed to vibration, and the integrated ADC reads position-sensor potentiometers directly. For under-hood tasks migrate to a PIC16F1823-E/SL or AEC-Q100 qualified equivalent.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1823T-I/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1823-I/SL | PIC16LF1823-E/SL | PIC16F1823T-I/SL | PIC16F1823-I/SL | PIC16LF1704-I/SL |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC (SL) | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same |
| Flash Program Memory | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 4 KB |
| Data RAM | 128 B | 128 B | 128 B | 128 B | 128 B | 256 B |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage (VDD) | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V |
| I/O Pins | 12 | 12 | 12 | 12 | 12 | 12 |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Wide 1.8-3.6V operating range with sub-100 nA sleep current (vs PIC16F1823T-I/SL)
- True drop-in alternative in identical 14-SOIC (SL) package (vs PIC16LF1823-I/SL)
- Extended-temperature variant available in the same footprint (vs PIC16LF1823-E/SL)
Design Notes
Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of the VDD pin, plus a bulk 1-10 uF aluminum-polymer or tantalum capacitor if the source impedance at low frequency is unknown. Estimated: at 32 MHz CPU and 12 mA active current, a 100 nF X7R alone may produce 50-100 mV ripple - add the bulk cap to keep ripple under 30 mV. Tie MCLR high through a 10 kohm resistor when not using an external reset supervisor.
Route the ICSP clock and data lines (PGD/ICSPCLK = RA0/RA1) as a short, untangled pair and keep them away from high-current switching traces such as PWM outputs or relay drivers. Always expose a 6-pin ICSP header in production designs even if you do not plan to debug after firmware release - field firmware updates are inevitable and a board without a header forces rework.
Do not substitute the LF variant on a 5V-only design or the F variant on a 1.8V-only design - VDD brown-out behavior differs and the wrong part will fail undervoltage lockout. Estimated: the LF variant draws approximately 30-40% less active current at 1 MHz than the F variant at the same frequency, but only when both run below 3.3V; above 3.6V the LF is out of spec. Always verify the voltage domain before population.
The 14-SOIC package has a theta_JA of approximately 100 C/W on a 1 oz 4-layer board. Estimated: at the maximum 12 mA active current and 3.6V, internal dissipation is roughly 43 mW - well within thermal limits. No heatsink or copper-pour enlargement is needed even at the upper industrial temperature ceiling of 85C ambient.
Compliance Information
RoHS compliant per Microchip product page. Industrial -40C to +85C temperature grade; AEC-Q100 qualified automotive variants are listed separately under the PIC16F1823-E family and require a distinct part number.
