PIC16LF18323-E/SL - 8-bit MCU, 32MHz, 3.5KB Flash, 14-SOIC | Microchip
MPN: PIC16LF18323-E/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.75 | $1.75 |
| 10 | $1.58 | $15.80 |
| 100 | $1.32 | $132.00 |
| 500 | $1.12 | $560.00 |
| 1,000 | $0.95 | $950.00 |
PIC16LF18323-E/SL Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash/ROM), working memory (SRAM), non-volatile storage (EEPROM), and a rich set of peripherals (ADC, timers, communication modules). 8-bit PIC microcontrollers belong to the broader hierarchy: MCU -> microcontroller -> embedded controller -> semiconductor IC. The PIC16F/LF183xx family specifically targets low-power and general-purpose embedded designs, leveraging Microchip's eXtreme Low Power (XLP) technology to extend battery life.
Key features include 3.5 KB self-programmable Flash, 256 bytes EEPROM, 256 bytes SRAM, 12 I/O pins, 10-bit ADC with up to 11 channels, a 5-bit DAC, multiple Core Independent Peripherals (CIPs) such as CLC, NCO, and CWG, hardware Capacitive Voltage Divider touch support, and PPS for digital peripheral remapping. The 'LF' prefix indicates an extended voltage range (1.8V to 3.6V) optimized for battery applications, while the 'E' suffix denotes the extended operating temperature range of -40C to +125C.
The architecture uses a 14-bit instruction word with a two-stage pipeline, providing single-cycle execution for most instructions at 32 MHz. The device supports in-circuit serial programming (ICSP) and in-circuit debugging (ICD) via two dedicated pins, enabling rapid firmware development and field upgrades. On-chip peripherals operate autonomously, allowing efficient power management with sleep currents in the nanoampere range.
Typical applications include IoT sensor nodes, low-power wireless connected devices, portable medical instruments, consumer electronics with capacitive touch interfaces, automotive body controllers, and battery-powered metering systems. PPS allows engineers to remap digital peripherals to almost any I/O pin, simplifying PCB layout and reducing design constraints.
When designing with this device, consider using the MPLAB X IDE with XC8 compiler and the PICkit or Snap debugger for development. Place a 0.1 uF decoupling capacitor close to VDD, and follow Microchip's application notes for layout of high-frequency signals and analog inputs to ensure EMC compliance.
This page synthesizes distributor pricing, parametric drop-in alternatives within the same 14-SOIC footprint, and practical design notes not found in the standalone manufacturer datasheet.
Drop-in alternatives for PIC16LF18323-E/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 PIC16LF18323-E/SL (same form factor and footprint) — differing in Package, ADC, Operating Temperature, Core, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18323-E/SL
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16LF18323-I/SL
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC16LF18324-E/SL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.6 / Unit
View Datasheet →PIC16LF18323-E/P
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.92 / Unit
View Datasheet →PIC16LF1823-E/SL
✅ Drop-In✓ In Stock
$0.98 / Unit
View Datasheet →PIC16LF18323-E/SL Maximum Ratings & Electrical Characteristics
| Core | PIC16 (8-bit RISC) |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| SRAM | 256 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Operating Temperature Range | -40 C to +125 C |
| I/O Pins | 12 |
| ADC | 10-bit, up to 11 channels |
| DAC | 5-bit |
| Comparators | Yes |
| PWM | 10-bit, multiple channels |
| Core Independent Peripherals | CLC, NCO, CWG, CCP |
| Peripheral Pin Select (PPS) | Yes |
| Package | 14-SOIC (SL) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16LF18323-E/SL Pin Configuration
| Pin 1 | RA5 — Bidirectional I/O / ICSP data |
| Pin 2 | RA4 — Bidirectional I/O / analog input |
| Pin 3 | RA3 — Bidirectional I/O / MCLR reset input |
| Pin 4 | RC5 — Bidirectional I/O / analog input |
| Pin 5 | RC4 — Bidirectional I/O / analog input |
| Pin 6 | RC3 — Bidirectional I/O / analog input / SCL |
| Pin 7 | RC2 — Bidirectional I/O / analog input / SDA |
| Pin 8 | RC1 — Bidirectional I/O / analog input / CCP |
| Pin 9 | RC0 — Bidirectional I/O / analog input |
| Pin 10 | RA2 — Bidirectional I/O / analog input |
| Pin 11 | RA1 — Bidirectional I/O / analog input / ICSPCLK |
| Pin 12 | RA0 — Bidirectional I/O / analog input |
| Pin 13 | VSS — Ground reference |
| Pin 14 | VDD — Positive supply voltage (1.8V-3.6V) |
Typical Applications
PIC16LF18323-E/SL is suitable for 6 applications: IoT Sensor Nodes, Portable Medical Instruments, Capacitive Touch Interfaces, Automotive Body Controllers, Industrial Sensor Transmitters, Battery-Powered Smart Metering.
IoT Sensor Nodes
The PIC16LF18323-E/SL fits IoT sensor nodes because its 1.8V-3.6V operating range directly supports single-cell Li-ion or two-coin-cell battery power, and its nanoamp-level sleep currents extend battery life into the multi-year range. The on-chip 10-bit ADC reads temperature, light, or motion sensors, while the integrated CLC and NCO peripherals handle signal conditioning autonomously without waking the CPU. CWG drives low-power RF or IR outputs. With 3.5 KB Flash and 256 B SRAM, the device is sufficient for protocol stacks like LoRaWAN node firmware, BLE beaconing, or simple MQTT-over-UART sensor reports. The PPS feature allows flexible PCB routing when sensor placement is constrained. Place the MCU in deep sleep between sensor readings to minimize average current draw below 1 uA.
Recommended
Portable Medical Instruments
The PIC16LF18323-E/SL suits portable medical instruments due to its extended -40C to +125C temperature range and low-voltage operation compatible with medical device battery packs. Its 10-bit ADC with 11 channels supports multi-parameter patient monitoring such as pulse oximetry, body temperature, or ECG front-end signal acquisition. The 5-bit DAC drives small reference voltages for sensor excitation, while the comparator enables threshold detection for alarm circuits. The CTMU peripheral provides accurate touch input for medical device user interfaces. With 256 B EEPROM, calibration constants and patient logs persist through power cycles. Place a 0.1 uF decoupling capacitor adjacent to VDD and route analog signals away from digital lines to ensure measurement accuracy within IEC 60601 EMC margins.
Recommended
Capacitive Touch Interfaces
The PIC16LF18323-E/SL enables robust capacitive touch interfaces through its integrated CTMU (Charge Time Measurement Unit) and mTouch firmware library. The CTMU combined with the 10-bit ADC and PPS allows up to 11 touch electrodes routed to almost any pin, supporting buttons, sliders, and proximity sensors in consumer appliances. The 32 MHz CPU executes touch scanning and debouncing algorithms well within the 10 ms response window required for responsive UI feedback. The hardware CLC peripheral implements noise filtering on touch inputs without CPU intervention, reducing firmware overhead. The 1.8V-3.6V range supports direct coin-cell operation, ideal for remote controls and small handheld devices. Reference Microchip AN1258 for proven touch PCB layout practices.
Recommended
Automotive Body Controllers
The PIC16LF18323-E/SL is suitable for non-safety automotive body electronics such as interior lighting, seat controllers, mirror adjusters, and climate panel modules. Its -40C to +125C operating range handles cabin and under-hood thermal extremes, and the 10-bit PWM module drives LED dimming or motor speed control. The CWG peripheral generates complementary PWM outputs for H-bridge motor drivers. PPS simplifies PCB layout when allocating pins to multiple load drivers in space-constrained modules. The integrated comparators and ADC monitor battery voltage and current sense for diagnostics. While not AEC-Q100 qualified, the 'E' temperature grade covers most non-safety automotive applications; for AEC-Q100 designs select a Microchip automotive-grade PIC16 family member instead.
Recommended
Industrial Sensor Transmitters
The PIC16LF18323-E/SL is well-suited for 4-20 mA industrial loop-powered sensor transmitters because of its 1.8V minimum supply and nanoamp-level sleep modes. The 10-bit ADC reads bridge sensors, RTDs, or thermocouples via an external op-amp front end, while the on-chip DAC provides excitation voltage trimming. The 32 MHz core computes linearization and calibration algorithms in real time, and 256 B EEPROM stores factory calibration coefficients. The hardware CLC and NCO peripherals generate excitation waveforms for sensor AC stimulation without CPU load. UART modules drive RS-485 or HART modem interfaces for process control networks. The 14-SOIC package enables compact DIN-rail transmitter housings with minimal PCB area.
Recommended
Battery-Powered Smart Metering
The PIC16LF18323-E/SL fits battery-powered gas, water, and electricity metering due to its XLP architecture with sub-microamp sleep current and 32 MHz compute headroom for measurement algorithms. The CLC peripheral performs event counting on flow or rotation pulses directly, allowing the CPU to remain in sleep until measurement is complete. The NCO generates precision timing references for metrology, and the ADC with 11 channels reads multiple sensor inputs in a single scan sequence. The 256 B EEPROM stores consumption logs and tamper flags through power cycles, while Flash holds firmware with secure in-field upgrade capability. UART modules drive wireless M-Bus or LoRa modem interfaces for AMI/AMR networks. Reference Microchip AN1267 for ultra-low-power metering design patterns.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18323-E/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18323-E/SL | PIC16LF18323-I/SL | PIC16LF18324-E/SL | PIC16LF1823-E/SL |
|---|---|---|---|---|---|
| Package | 14-SOIC (SL) | 14-SOIC - same | 14-SOIC - same | 14-SOIC - same | 14-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Operating Voltage | 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 |
| Flash Memory | 3.5 KB | 3.5 KB | 3.5 KB | 4 KB (+14%) | 8 KB |
| SRAM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 128 bytes (-50%) |
| Temperature Range | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) |
| Core Independent Peripherals | CLC, NCO, CWG, CCP | CLC, NCO, CWG, CCP | CLC, NCO, CWG, CCP | CLC, NCO, CWG, CCP | Limited (no NCO/CWG) |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
Key Differentiators
- Lower operating voltage for battery applications (vs PIC16F18323-E/SL)
- Extended temperature range over industrial grade (vs PIC16LF18323-I/SL)
- Core Independent Peripherals (CIPs) for offloaded processing (vs PIC16LF1823-E/SL)
Design Notes
Place a 0.1 uF ceramic decoupling capacitor as close as possible to the VDD pin (pin 14) with a short trace to VSS (pin 13). For designs with high-current peripherals or long VDD traces, add a 1 uF to 10 uF bulk capacitor near the MCU. According to Microchip's PIC16(L)F183XX datasheet, VDD rise time should be monotonic and not exceed the LPBOR reset time to ensure clean power-on reset behavior.
Use Peripheral Pin Select (PPS) to map digital peripherals (CCP, CWG, UART, SPI) to convenient physical pins, simplifying PCB routing. Route the ICSP pins (RA1 for ICSPCLK and RA5 for ICSPDAT) directly to a programming header without series resistors in the signal path, as required by Microchip's ICSP specification. Keep analog input traces short and away from switching signals to minimize ADC noise pickup.
Do not exceed the absolute maximum VDD of 4.0V (transient) or 3.6V (continuous). Use the internal LFINTOSC oscillator if external clock precision is not required to save two I/O pins. Always configure unused I/O pins as outputs low to minimize sleep current consumption. The MCLR pin (RA3) must be tied to VDD through a 10 kohm resistor if not used as a reset input to prevent spurious resets.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose AEC-Q100 qualified automotive variants for safety-critical automotive applications. Halogen-free status not explicitly listed in provided data.
