PIC16F15324-E/ST - 8-bit MCU, 7KB Flash, 32MHz | Microchip
MPN: PIC16F15324-E/ST ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.62 | $1.62 |
| 10 | $1.46 | $14.60 |
| 100 | $1.18 | $118.00 |
| 500 | $1.02 | $510.00 |
| 1,000 | $0.89 | $890.00 |
PIC16F15324-E/ST Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and configurable peripherals. Within the semiconductor hierarchy, MCUs sit inside the broader integrated circuit (IC) family, are classified as embedded processors, and specifically the PIC16F15324 belongs to Microchip's PIC16 mid-range 8-bit MCU family. The 8-bit PIC architecture is widely adopted for cost-sensitive, deterministic, low-power applications such as sensor nodes, appliance controls, and battery-powered IoT devices.
Key features of the PIC16F15324 include the eXtreme Low-Power (XLP) technology with deep-sleep currents in the nanoampere range, Core Independent Peripherals (CIPs) that offload tasks from the CPU, and Intelligent Analog peripherals including a 10-bit ADC with computation (ADC2), two 8-bit DACs, and zero-cross detection. The four Configurable Logic Cells (CLCs) allow hardware-level custom glue logic without software overhead, while the Complementary Waveform Generator (CWG) simplifies motor and lighting drive topologies.
Technically, the device supports 1.8V to 5.5V operation (F-version), offers up to 32MHz internal oscillator operation, and provides 12 I/O pins with interrupt-on-change capability. The 14-bit instruction word and 8-level hardware stack reflect the classic PIC16 mid-range architecture, ensuring deterministic interrupt latency suitable for real-time control loops. Internal voltage reference and temperature indicator support additional analog housekeeping functions without external components.
Typical applications include IoT sensor nodes, low-power wireless nodes, LED lighting controllers, small motor and fan controls, battery chargers, home appliance user interfaces, and remote controls. The extended -40C to +125C temperature range enables deployment in automotive under-hood, industrial sensor, and outdoor equipment environments. The compact TSSOP-14 footprint allows placement on space-constrained boards while still exposing the full peripheral set.
When designing with the PIC16F15324-E/ST, ensure decoupling capacitors (100nF plus 1uF bulk) are placed within a few millimeters of VDD/AVDD, and that the MCLR pin is properly pulled-up through a resistor if in-circuit serial programming (ICSP) is needed. Configure unused I/O pins as outputs with logic low to minimize power consumption in deep sleep. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16F15324-E/ST — 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 PIC16F15324-E/ST (same form factor and footprint) — differing in Program Memory (Flash), RAM, ADC, Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F15344-E/ST
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F15325-E/ST
✅ Drop-In✓ In Stock
$0.62 / Unit
View Datasheet →PIC16F18324-E/ST
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F15225-I/ST
✅ Drop-In✓ In Stock
$0.55 / Unit
View Datasheet →PIC16F15224-I/ST
✅ Drop-In✓ In Stock
$0.72 / Unit
View Datasheet →PIC16F15324-E/ST Maximum Ratings & Electrical Characteristics
| Core Processor | PIC |
| Core Size | 8-Bit |
| CPU Speed (Max) | 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| RAM | 512 bytes |
| EEPROM | 256 bytes |
| Package | 14-pin TSSOP (ST) |
| Operating Voltage | 1.8 V to 5.5 V (F-version) |
| Operating Temperature | -40 C to +125 C (Extended -E grade) |
| I/O Pins | 12 |
| ADC | 10-bit, up to 11 channels |
| DAC | 2 x 8-bit |
| Comparators | 2 |
| PWM | 4 x 16-bit (10-bit resolution) |
| CLC | 4 Configurable Logic Cells |
| CWG | Complementary Waveform Generator |
| Communication | 2 x EUSART (LIN/SPI/I2C), SPI, I2C |
| Timers | Multiple 8/16-bit timers |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16F15324-E/ST Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8V to 5.5V) |
| Pin 2 | RA5 — Bidirectional I/O, analog input, IOC |
| Pin 3 | RA4 — Bidirectional I/O, analog input, IOC |
| Pin 4 | RA3/MCLR — Bidirectional I/O or Master Clear (reset) input |
| Pin 5 | RC5 — Bidirectional I/O, IOC, EUSART/SPI/I2C |
| Pin 6 | RC4 — Bidirectional I/O, IOC, EUSART/SPI/I2C |
| Pin 7 | RC3 — Bidirectional I/O, IOC, EUSART/SPI/I2C |
| Pin 8 | RC2 — Bidirectional I/O, IOC |
| Pin 9 | RC1 — Bidirectional I/O, IOC, analog input |
| Pin 10 | RC0 — Bidirectional I/O, IOC, analog input |
| Pin 11 | RA2 — Bidirectional I/O, analog input, DAC output |
| Pin 12 | RA1 — Bidirectional I/O, analog input, DAC output |
| Pin 13 | RA0 — Bidirectional I/O, analog input, ICSPDAT |
| Pin 14 | VSS — Ground reference |
Typical Applications
PIC16F15324-E/ST is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, LED Lighting and Dimming Controllers, Small Brushless DC Fan and Pump Control, Home Appliance User Interfaces, Industrial Sensor Transmitters, Automotive Body and Cabin Electronics.
Battery-Powered IoT Sensor Nodes
The PIC16F15324-E/ST's eXtreme Low-Power (XLP) technology with sub-50nA deep-sleep currents makes it ideal for coin-cell or Li-ion battery-powered IoT sensor nodes that sleep for years between wake events. The 32MHz core wakes quickly enough to perform ADC2 sampling, on-chip temperature compensation, and transmit over an attached radio module within a tight duty cycle. The 12 I/O pins comfortably support I2C sensors, an SPI accelerometer, and a UART-attached radio module simultaneously. The extended -40C to +125C temperature range enables outdoor and industrial deployments without derating. Pair with the MCP9808 temperature sensor or Bosch BME280 environmental sensor over I2C.
Recommended
LED Lighting and Dimming Controllers
The PIC16F15324-E/ST drives LED strips and fixtures via its four 16-bit PWMs and Complementary Waveform Generator (CWG), supporting dimming down to 1% without visible flicker and avoiding audible noise through high-frequency PWM above 20kHz. The 8-bit DACs provide accurate color mixing for RGBW lighting while the 10-bit ADC reads ambient light and supply current for closed-loop brightness control. The CLC blocks implement hardware-level fade and breathe effects without CPU overhead, freeing the core for BLE control stack or DALI protocol handling. The TSSOP-14 footprint fits inside down-light canisters.
Recommended
Small Brushless DC Fan and Pump Control
The PIC16F15324-E/ST drives small brushless DC (BLDC) fans, water pumps, and solenoids through its CWG and four PWMs, providing complementary outputs with programmable dead time to prevent shoot-through in half-bridge drivers. The zero-cross detect on the analog comparator enables sensorless back-EMF commutation for simple 3-wire BLDC fans. With 32MHz core speed and a fast ADC, the controller achieves closed-loop RPM regulation within a few percent of target across the 1.8V-5.5V supply range. The -E temperature grade handles under-hood automotive or industrial cabinet environments.
Recommended
Home Appliance User Interfaces
The PIC16F15324-E/ST scans capacitive touch buttons and rotary encoders through its CLCs and interrupt-on-change I/O while driving character or graphical LCDs, seven-segment displays, and buzzer feedback in washing machines, microwave ovens, and coffee makers. The 7KB Flash is enough to host state-machine UI logic with menu handling, fault diagnostics, and EEPROM-backed user settings across 256 bytes of non-volatile storage. The dual EUSART interfaces support both the main appliance MCU link and a service-port UART for factory calibration and field diagnostics.
Recommended
Industrial Sensor Transmitters
The PIC16F15324-E/ST digitizes analog process signals (4-20mA current loops, 0-10V) using its 10-bit ADC and on-chip DAC for excitation or HART-style modulation in 4-20mA sensor transmitters. The extended -40C to +125C range and 1.8V-5.5V supply window suit harsh DIN-rail mounted industrial installations. With 7KB Flash, firmware can host linearization tables for thermocouples, RTDs, and load cells, plus a Modbus RTU slave stack on one of the two EUSART channels for PLC integration. TSSOP-14 fits inside small head-mounted transmitter enclosures.
Recommended
Automotive Body and Cabin Electronics
The PIC16F15324-E/ST powers seat controllers, mirror adjusters, interior lighting, and HVAC blend-door actuators through LIN-bus on the EUSART peripheral and PWM outputs to small DC motors. The -40C to +125C temperature range handles the cabin environment, while the CWG and CLCs simplify the generation of complementary drive signals for MOSFET half-bridges. The eXtreme Low-Power sleep modes preserve battery life when the vehicle is parked for weeks. The 12 I/O pins and 7KB Flash are sufficient for end-of-line calibration and feature-rich body modules.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F15324-E/ST — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F15344-E/ST | PIC16F15325-E/ST | PIC16F18324-E/ST | PIC16F15225-I/ST |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TSSOP-14 | TSSOP-14 (same) | TSSOP-14 (same) | TSSOP-14 (same) | TSSOP-14 (same) |
| Flash Memory | 7 KB | 14 KB | 14 KB | 7 KB | 14 KB |
| RAM | 512 bytes | 1 KB | 1 KB | 512 bytes | 1 KB |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| CLC Blocks | 4 | 4 | 4 | 4 | 0 |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Operating Temperature | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +85 C |
Key Differentiators
- Rich CIP peripheral set in TSSOP-14 (vs PIC16F15225-I/ST)
- Extended -40C to +125C temperature grade (vs PIC16F15225-I/ST)
- 7KB Flash with modern peripheral mix (vs PIC16F15313-I/P)
- Newer XLP generation with improved sleep current (vs PIC16F15224-I/ST)
Design Notes
Place a 100nF ceramic decoupling capacitor within 3mm of the VDD pin and a 1uF to 10uF bulk capacitor on the same rail. According to Microchip's PIC16(L)F15324/44 datasheet section 2, the analog AVDD pin (when bonded) requires its own dedicated 100nF decoupling capacitor. Enable the on-chip voltage regulator's HFINTOSC + PLL only when CPU throughput is needed, then return to the LFINTOSC at 31kHz for ultra-low deep-sleep current.
Route the ICSP signals (ICSPCLK on RA0/RA1 or dedicated) so the programming header is accessible without removing the chip. Keep the MCLR pull-up resistor (typically 10kohm) close to the pin, with a capacitor to ground if reset time-constant control is required. Avoid routing noisy switching signals (PWM outputs, CWG complementary outputs) adjacent to ADC analog inputs to minimize coupling into sensitive measurement channels.
Always configure unused I/O pins as digital outputs driving low to minimize source current in deep sleep. Do not leave analog inputs floating - configure them as digital outputs or enable the internal weak pull-ups. When using the ADC, ensure the A/D conversion clock is set to a value slower than Fosc/4 for proper sampling. For CLC blocks, route the trigger sources through PPS correctly or the logic cell will not respond to the intended edge.
At 32MHz CPU speed with full peripheral activity, the TSSOP-14 package dissipates under 50mW typical. With theta_JA around 100 C/W on a standard 4-layer FR4 board, the junction temperature rise is approximately 5 C above ambient, well within the -40C to +125C operating range. For closed-enclosure designs with no airflow, derate by reducing CPU speed or duty cycling the radio peripherals. The -E temperature grade is rated to +125C junction, providing ample thermal margin.
Compliance Information
RoHS and REACH compliant per Microchip product page. The PIC16F15324 family is not AEC-Q100 qualified; for AEC-Q100, consult Microchip automotive-grade portfolio. Lead-free and halogen-free per Microchip's environmental compliance documentation.