PIC16F18324T-I/SL - 8-Bit XLP MCU, 7KB Flash, 32MHz, 14-SOIC
MPN: PIC16F18324T-I/SL β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.42 | $1.42 |
| 10 | $1.28 | $12.80 |
| 100 | $1.08 | $108.00 |
| 500 | $0.94 | $470.00 |
| 1,000 | $0.83 | $830.00 |
PIC16F18324T-I/SL Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripherals such as timers, ADCs, and communication interfaces into one IC. The PIC16F family belongs to the 8-bit MCU category within the broader microcontroller hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. PIC microcontrollers are widely used in cost-sensitive, low-power, and deterministic-control applications such as consumer electronics, IoT sensors, and industrial control modules.
Key features of the PIC16F18324 include 12-bit ADC with computation (ADC2), 10-bit DAC, two 8-bit timers, one 16-bit timer, enhanced PWM with multiple modes, and peripheral pin select (PPS) for flexible pin mapping. The device supports I2C, SPI, and EUSART serial interfaces, plus a wide operating voltage range from 1.8V to 5.5V. Its XLP technology enables typical sleep current below 50 nA, making it ideal for battery-powered designs. The 14-pin SOIC package is the most common surface-mount IC form factor, compatible with standard hand-soldering and reflow processes, and belongs to the SOIC -> small-outline -> surface-mount package family.
The architecture combines a 14-bit instruction word with 8-bit data paths, providing deterministic interrupt response and efficient code density. Integrated CIPs such as the Configurable Logic Cell (CLC), Complementary Waveform Generator (CWG), Numerically Controlled Oscillator (NCO), and Data Signal Modulator (DSM) allow designers to implement complex signal conditioning, waveform generation, and protocol handling without burdening the CPU. The Peripheral Pin Select (PPS) feature remaps digital peripheral I/O to almost any I/O pin, simplifying PCB layout and BOM consolidation. Functional Safety (FuSa) features are included per IEC 61508 SIL 2 hardware metrics, simplifying safety-critical designs.
Typical applications include IoT sensor nodes, low-power remote controls, battery-powered instrumentation, LED lighting controllers, home automation, and automotive body electronics (non-safety). The combination of small footprint, low power, and rich analog/digital peripherals makes it a popular upgrade path from legacy PIC12 and PIC16F1xxx designs. The 'T' suffix in the part number indicates Tape & Reel packaging for high-volume assembly, and the 'I' suffix specifies the -40C to +85C industrial temperature range.
When designing with this part, prioritize using the MPLAB X IDE with the XC8 compiler for code development. For low-power designs, leverage the deep-sleep modes and the Peripheral Module Disable (PMD) registers to gate unused peripherals. The PPS feature must be configured before enabling peripherals, and unconfigured pins should be set as outputs low or inputs with weak pull-ups to minimize leakage. Always place a 0.1 uF decoupling capacitor within 5 mm of the VDD pin.
Drop-in alternatives for PIC16F18324T-I/SL 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 PIC16F18324T-I/SL (same form factor and footprint) β differing in ADC, Core Architecture, Core Independent Peripherals, DAC, MSL Level.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16F18325-I/SL
β Drop-Inπ Reference alternative (not in catalog)
PIC16F18323T-I/SL
β Drop-Inπ Reference alternative (not in catalog)
PIC16F18313T-I/SL
β Drop-Inπ Reference alternative (not in catalog)
PIC16F18326-I/SL
β Drop-Inβ In Stock
$0.7 / Unit
View Datasheet βPIC16F18324T-I/SLVAO
β Drop-Inβ In Stock
$1.04 / Unit
View Datasheet βPIC16F18324-I/SLVAO
β Drop-Inβ In Stock
$0.98 / Unit
View Datasheet βPIC16F18324T-I/SL Maximum Ratings & Electrical Characteristics
| Product Family | PIC16F1xxx, PIC16 (L)F18324/18344 series |
| Core Architecture | 8-bit Enhanced Mid-Range PIC |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data SRAM | 512 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (Industrial, 'I' suffix) |
| Package | 14-SOIC (3.90 mm body width, SL package code) |
| Mounting Type | Surface Mount |
| I/O Pins | 11 GPIO (with Peripheral Pin Select) |
| ADC | 12-bit with Computation (ADC2) |
| DAC | 10-bit |
| Timers | 4 x 8-bit, 3 x 16-bit |
| PWM Channels | 10-bit PWM, multiple outputs |
| Communication Interfaces | I2C, SPI, EUSART |
| Core Independent Peripherals | CLC, CWG, NCO, DSM, ECCP |
| Low-Power Technology | nanoWatt XLP (eXtreme Low Power) |
| Functional Safety (FuSa) | Yes, IEC 61508 SIL 2 capable |
| MSL Level | 1 (Unlimited floor life at <30 C / 85% RH) |
| RoHS Status | Compliant |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
| Packaging | Tape & Reel (T suffix) |
PIC16F18324T-I/SL Pin Configuration
| Pin 1 | RA5 β Bidirectional I/O with PPS; analog-capable |
| Pin 2 | RA4 β Bidirectional I/O with PPS; analog-capable |
| Pin 3 | RA3/MCLR β Bidirectional I/O or Master Clear (reset) input |
| Pin 4 | RA2 β Bidirectional I/O with PPS; analog-capable |
| Pin 5 | RA1/ICSPCLK β Bidirectional I/O or ICSP clock programming pin |
| Pin 6 | RA0/ICSPDAT β Bidirectional I/O or ICSP data programming pin |
| Pin 7 | VSS β Ground reference |
| Pin 8 | RA7 β Bidirectional I/O with PPS; analog-capable |
| Pin 9 | RA6 β Bidirectional I/O with PPS; analog-capable |
| Pin 10 | RC5 β Bidirectional I/O with PPS; analog-capable |
| Pin 11 | RC4 β Bidirectional I/O with PPS; analog-capable |
| Pin 12 | RC3 β Bidirectional I/O with PPS; analog-capable |
| Pin 13 | RC2 β Bidirectional I/O with PPS; analog-capable |
| Pin 14 | VDD β Positive supply voltage (1.8V to 5.5V) |
Typical Applications
PIC16F18324T-I/SL is suitable for 7 applications: Battery-Powered IoT Sensor Node, HVAC and Building Automation Controller, Automotive Body Electronics Module, LED Lighting and Backlight Driver, Industrial Sensor Signal Conditioner, Consumer Remote Control and HMI, Low-Cost Motor Control (Brushed DC and Stepper).
Battery-Powered IoT Sensor Node
The PIC16F18324T-I/SL is ideal for battery-powered IoT sensor nodes because its nanoWatt XLP technology achieves 30 nA typical sleep current while retaining full RAM, enabling 10+ year battery life from a CR2032 cell. The integrated 12-bit ADC2 with computation handles sensor signal conditioning autonomously, freeing the CPU for transmit-only wake events. Operating voltage from 1.8V to 5.5V supports direct connection to single-cell Li-ion, two-AA alkaline, or energy-harvested supplies without additional LDO stages.
Recommended
HVAC and Building Automation Controller
The PIC16F18324T-I/SL suits HVAC and building automation controllers due to its 11 GPIO with Peripheral Pin Select (PPS), 12-bit ADC, and multiple PWM outputs for driving relays, TRIACs, and small motor loads. Functional Safety features such as windowed WDT and memory BIST support IEC 61508 SIL 2 system-level requirements. The 32 MHz CPU and Core Independent Peripherals (CLC, CWG, NCO) enable precise control of damper actuators, valve drives, and sensor multiplexing without CPU intervention.
Recommended
Automotive Body Electronics Module
The PIC16F18324T-I/SL automotive equivalent (PIC16F18324T-I/SLVAO) is well-suited to body electronics modules such as interior lighting controllers, seat adjusters, and mirror controls. Its 12-bit ADC and 10-bit DAC allow precise sensor reading and PWM-controlled LED dimming across automotive 12V battery rails (with proper front-end protection). The device's -40C to +125C extended temperature grade and PPAP documentation meet automotive supply-chain requirements, while nanoWatt XLP supports quiescent-current budgets critical for always-on body networks.
Recommended
LED Lighting and Backlight Driver
The PIC16F18324T-I/SL is an excellent choice for LED lighting and backlight drivers because of its 10-bit PWM with multiple independent outputs, 10-bit DAC, and Core Independent Peripherals like the Complementary Waveform Generator (CWG) that produce dead-band-controlled half-bridge signals for high-efficiency LED drivers. The 32 MHz CPU and PPS simplify direct LED matrix multiplexing without external logic. nanoWatt XLP technology enables always-on standby lighting with sub-microamp quiescent draw.
Recommended
Industrial Sensor Signal Conditioner
The PIC16F18324T-I/SL works well as an industrial sensor signal conditioner because its 12-bit ADC2 with oversampling and accumulation provides effective resolution up to 17 bits for strain-gauge, pressure, and flow sensor bridges. The Data Signal Modulator (DSM) and Numerically Controlled Oscillator (NCO) implement digital filters and tone generation entirely in hardware, offloading the CPU. Functional Safety features (windowed WDT, BIST) streamline IEC 61508 SIL 2 compliance for process-control loops.
Recommended
Consumer Remote Control and HMI
The PIC16F18324T-I/SL is a strong fit for consumer remote controls, wireless key fobs, and small human-machine interface (HMI) panels due to its 11 GPIO with PPS supporting up to 18 I/O functions, on-chip 12-bit ADC for touch/proximity sensing, and nanoWatt XLP sleep modes below 50 nA. The Configurable Logic Cell (CLC) handles button-debouncing and wake-on-event autonomously, eliminating polling overhead. The 14-SOIC package drops easily onto compact hand-held PCBs.
Recommended
Low-Cost Motor Control (Brushed DC and Stepper)
The PIC16F18324T-I/SL serves as a low-cost brushed-DC and unipolar stepper motor controller through its 10-bit PWM, Complementary Waveform Generator (CWG) with dead-band control, and QEI (Quadrature Encoder Interface) peripherals. The 32 MHz instruction rate gives 32 ns PWM resolution sufficient for low-noise motor commutation. Core Independent Peripherals execute current-limit and stall detection without CPU loading, while nanoWatt XLP enables battery-operated handheld tools.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F18324T-I/SL β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18325-I/SL | PIC16F18323T-I/SL | PIC16F18313T-I/SL | PIC16F18326-I/SL | PIC16F18324-I/SL |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC | 14-SOIC - same | 14-SOIC - same | 14-SOIC - same | 14-SOIC - same | 14-SOIC - same |
| Flash Memory | 7 KB | 14 KB | 3.5 KB | 3.5 KB | 28 KB | 7 KB |
| SRAM | 512 B | 1 KB | 256 B | 256 B | 2 KB | 512 B |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| GPIO Count | 11 | 11 | 11 | 6 | 11 | 11 |
| XLP (nanoWatt) | Yes | Yes | Yes | Yes | Yes | Yes |
| Functional Safety (FuSa) | Yes | Yes | Yes | No | Yes | Yes |
| Packaging | Tape & Reel | Tube | Tape & Reel | Tape & Reel | Tube | Tube |
Key Differentiators
- Balanced 7KB Flash for mainstream firmware without memory waste (vs PIC16F18323T-I/SL)
- Full Peripheral Pin Select (PPS) remapping on all 11 GPIO (vs PIC16F18313T-I/SL)
- Functional Safety (FuSa) features included for IEC 61508 SIL 2 (vs PIC16F18324T-I/SLVAO)
Design Notes
Place a 100 nF X7R decoupling capacitor within 5 mm of the VDD pin (pin 14) and a bulk 10 uF tantalum or ceramic capacitor on the same supply trace. The PIC16F18324 draws brief inrush spikes during ADC2 conversion and Core Independent Peripheral switching; inadequate decoupling causes ADC noise and brown-out resets. For battery applications, route the VDD trace directly from the cell positive terminal to minimize IR drop in deep-sleep wake transitions. Estimated: at 32 MHz active, IDD ~1.8 mA at 3.3V; bulk cap should hold VDD within 50 mV during 1 ms wake bursts.
The 14-SOIC (SL) footprint uses 1.27 mm pitch pads with 0.51 mm pad width - follow IPC-7351 land pattern conventions for reflow reliability. Route ICSPCLK and ICSPDAT (RA1/RA5) to test-pad access points for in-circuit programming without disassembly, and place a 4.7 kohm pull-up on MCLR (RA3). Keep clock traces (RA4 for external crystal) short and guarded with a ground ring to avoid EMI injection into the ADC. nanoWatt XLP devices are sensitive to leakage; flux residue under the SOIC can increase sleep current by several microamps.
Do not enable Peripheral Pin Select (PPS) remapping before configuring the CONFIGURATION bits - the PPS unlock sequence requires the correct register sequence to avoid bus errors. The 'T' suffix denotes Tape & Reel, not temperature - this part remains Industrial grade (-40C to +85C); for -40C to +125C extended grade, choose the 'E' suffix variant. The MCLR pin (RA3) must be tied to VDD through a 10 kohm resistor (or disabled in CONFIG) at first power-up, otherwise the device stays in reset. Verify that the 12-bit ADC2 reference voltage matches your sensor full-scale range before design finalization.
When using the 12-bit ADC2 with internal FVR reference, add a 1 uF ceramic capacitor on the FVR output pin to reduce reference noise; otherwise ADC readings can fluctuate by 2-3 LSBs. For high-impedance sensor sources (>10 kohm), enable the ADC dedicated sample-and-hold capacitor and extend acquisition time by setting the ACQT bits accordingly. The EUSART baud-rate generator has limited granularity at high CPU speeds - use the Auto-Baud feature for crystal-tolerant serial links. Route analog and digital traces on separate PCB layers with a continuous ground plane beneath the SOIC body.
Compliance Information
RoHS compliant per Microchip product declaration. Halogen-free per JEDEC JS709. Not AEC-Q100 qualified - choose PIC16F18324T-I/SLVAO for automotive-grade PPAP documentation. Functional Safety (FuSa) features support IEC 61508 SIL 2 hardware metrics but do not constitute AEC-Q100 automotive qualification.
