PIC16F15225-I/ST - 14KB Flash 8-bit MCU, 32MHz, TSSOP-14 | Microchip
MPN: PIC16F15225-I/ST ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.88 | $0.88 |
| 10 | $0.79 | $7.90 |
| 100 | $0.71 | $71.00 |
| 500 | $0.62 | $310.00 |
| 1,000 | $0.55 | $550.00 |
PIC16F15225-I/ST Overview
A PIC16F152xx microcontroller is an 8-bit CMOS flash-based MCU built on an enhanced mid-range core with 49 instructions, 16 stack levels, and self read/write capability on program memory. It belongs to the broader PIC16F family of microcontrollers, which itself sits within the hierarchy of microcontrollers -> microprocessors -> integrated circuits -> semiconductors. The enhanced mid-range architecture balances code density, deterministic interrupt response, and ultra-low power consumption, making this class of MCU well suited to cost-sensitive embedded applications.
Key features include eXtreme Low-Power (XLP) Sleep mode that reduces quiescent current to nanoampere levels, Peripheral Pin Select (PPS) which allows flexible remapping of digital peripherals to I/O pins, and Core Independent Peripherals (CIPs) that offload tasks from the CPU. The MSSP module supports both SPI and I2C master/slave, while EUSART handles asynchronous and synchronous serial communication. Intelligent Analog features include a 10-bit ADC and dual comparators. The device operates across 1.8V to 5.5V supply and is available in industrial temperature grade (-40C to +85C).
Typical applications include low-power IoT sensor nodes, battery-powered home automation, consumer electronics human-machine interfaces, HVAC thermostat controls, motor control for small BLDC fans, and LED lighting controllers. The 14-pin TSSOP footprint is attractive for compact PCB designs where board area is constrained.
When designing with this part, evaluate the 12 I/O pins carefully against peripheral needs: PPS allows most peripherals to be remapped, but pin count remains the hard constraint. The XLP Sleep current specification should be verified against the application's duty cycle to confirm battery-life targets. A 1.8V minimum VDD supports single-cell alkaline or coin-cell battery operation directly.
This page synthesizes distributor pricing, drop-in alternatives sourced from the PIC16F152xx family, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16F15225-I/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 PIC16F15225-I/ST (same form factor and footprint) — differing in Program Memory (Flash), ADC, Operating Temperature, Package, Instruction Set.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F15224-I/ST
✅ Drop-In✓ In Stock
$0.72 / Unit
View Datasheet →PIC16F15223T-I/ST
✅ Drop-In✓ In Stock
$0.56 / Unit
View Datasheet →PIC16F1503-I/ST
✅ Drop-In✓ In Stock
$0.94 / Unit
View Datasheet →PIC16F1455-I/ST
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F15225-I/ST Maximum Ratings & Electrical Characteristics
| Architecture | 8-bit Enhanced Mid-Range Core |
| Instruction Set | 49 Instructions |
| Program Memory (Flash) | 14 KB |
| RAM | 1 KB |
| CPU Speed | 32 MHz maximum |
| ADC | 10-bit |
| PWM Modules | 2 |
| CCP Modules | 2 |
| EUSART | 1 |
| MSSP (SPI / I2C) | 1 |
| Hardware Limit Timer (HLT) | Yes |
| Watchdog Timer (WDT) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| eXtreme Low-Power (XLP) Sleep | Yes |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| Operating Temperature | -40C to +85C (Industrial) |
| I/O Pins | 12 |
| Package | 14-pin TSSOP (ST) |
| Mounting Type | Surface Mount |
| Lead-Free / RoHS | Compliant |
PIC16F15225-I/ST Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8V to 5.5V) |
| Pin 2 | RA5 — I/O port A bit 5 / analog input / digital I/O via PPS |
| Pin 3 | RA4 — I/O port A bit 4 / analog input / digital I/O via PPS |
| Pin 4 | RA3/MCLR — I/O port A bit 3 / Master Clear (reset) input |
| Pin 5 | RC5 — I/O port C bit 5 / digital I/O via PPS |
| Pin 6 | RC4 — I/O port C bit 4 / digital I/O via PPS |
| Pin 7 | RC3 — I/O port C bit 3 / SCL (I2C) / digital I/O via PPS |
| Pin 8 | RC2 — I/O port C bit 2 / SDA (I2C) / digital I/O via PPS |
| Pin 9 | RC1 — I/O port C bit 1 / CCP2 / digital I/O via PPS |
| Pin 10 | RC0 — I/O port C bit 0 / digital I/O via PPS |
| Pin 11 | RA2 — I/O port A bit 2 / analog input / digital I/O via PPS |
| Pin 12 | RA1 — I/O port A bit 1 / ICSPCLK / analog input / digital I/O via PPS |
| Pin 13 | RA0 — I/O port A bit 0 / ICSPDAT / analog input / digital I/O via PPS |
| Pin 14 | VSS — Ground reference |
Typical Applications
PIC16F15225-I/ST is suitable for 8 applications: Battery-Powered IoT Sensor Nodes, HVAC Thermostat Controllers, Consumer Electronics User Interfaces, Small BLDC Fan Motor Control, LED Lighting Controllers, Industrial Sensor Signal Conditioning, Smart Home Appliance Controls, Portable Medical Monitoring Devices.
Battery-Powered IoT Sensor Nodes
The PIC16F15225-I/ST's eXtreme Low-Power (XLP) Sleep mode draws nanoamp-level quiescent current, enabling multi-year battery life on coin-cell or 2xAA cells in duty-cycled sensor nodes. Its 1.8V-5.5V supply range supports direct alkaline or lithium battery connection without regulation, and the 10-bit resolution ADC samples temperature, humidity, or motion sensors with low active-mode current. EUSART or MSSP interfaces connect to sub-GHz transceivers for wireless telemetry, while 14 KB Flash accommodates BLE beacon firmware stacks or proprietary sensor processing pipelines. PPS allows flexible pin assignment for sensor and radio integration on space-constrained boards.
Recommended
HVAC Thermostat Controllers
The PIC16F15225-I/ST's 12 I/O pins and PWM outputs handle thermostat display driving, relay switching for HVAC compressor stages, and triac phase-angle control for fan speeds. Its 14 KB Flash stores scheduling logic, hysteresis algorithms, and PID loop routines for accurate temperature regulation. The integrated 10-bit ADC reads NTC thermistors or remote temperature sensors with sufficient resolution for +/-0.5C control accuracy. XLP Sleep mode keeps standby power well below Energy Star limits, while the industrial -40C to +85C temperature range tolerates equipment-room environments during summer operation.
Recommended
Consumer Electronics User Interfaces
The PIC16F15225-I/ST drives capacitive touch buttons, RGB LED indicators, and small OLED/LCD segments via its PWM and GPIO resources, with MSSP providing I2C master control for display panels. Its 32 MHz clock supports smooth LED fade animations and debounced button scanning at high refresh rates. The 14 KB Flash accommodates menu state machines and protocol stacks, while 1 KB RAM buffers display frame data without external memory. PPS allows designers to remap peripherals when layout constraints shift the touch-sensor footprint, improving PCB routing density on space-limited consumer products.
Recommended
Small BLDC Fan Motor Control
The PIC16F15225-I/ST's two PWM channels generate complementary drive signals for BLDC fan commutation with dead-time insertion, while the integrated comparators support back-EMF zero-cross detection for sensorless control. Its hardware limit timer (HLT) enforces safe commutation windows, preventing shoot-through in the inverter bridge. 14 KB Flash fits state-machine-based commutation tables and speed PI loop, while the 32 MHz core executes control law updates at sub-millisecond intervals for smooth speed regulation under varying load. The TSSOP-14 footprint suits compact fan PCB designs with tight height constraints.
Recommended
LED Lighting Controllers
The PIC16F15225-I/ST's PWM outputs drive high-brightness LED strings via external MOSFETs with constant-current regulation, while its 10-bit ADC samples photodiodes or current-sense resistors for closed-loop brightness control. The MSSP module manages DMX512 or DALI protocol stacks for professional lighting installations, while EUSART handles simpler UART-based control. 14 KB Flash stores lighting scenes, fade curves, and color-mixing algorithms, and PPS lets designers reassign PWM channels to alternate pins without board rework. XLP Sleep mode keeps standby power below 0.5W to meet regulatory limits.
Recommended
Industrial Sensor Signal Conditioning
The PIC16F15225-I/ST provides 10-bit ADC sampling of 4-20 mA loop signals, strain-gauge bridges, or thermocouples in industrial process monitoring. Its EUSART outputs data to PLCs or HMIs at standard baud rates up to 115.2 kbps, while MSSP interfaces to digital sensor front-ends via SPI. The industrial -40C to +85C temperature rating tolerates cabinet-side mounting without additional thermal protection. 14 KB Flash holds linearization tables, calibration constants, and Modbus RTU protocol stacks, while XLP Sleep reduces idle power during standby polling intervals typical of SCADA nodes.
Recommended
Smart Home Appliance Controls
The PIC16F15225-I/ST integrates with Wi-Fi or Bluetooth modules via its EUSART or MSSP interfaces, enabling smart refrigerators, washing machines, and coffee makers to connect to home networks. The 14 KB Flash supports small RTOS kernels, OTA bootloader stubs, and application state machines. PWM channels drive solenoid valves, buzzers, and indicator LEDs, while the 10-bit ADC reads temperature, water-level, or weight sensors. XLP Sleep keeps wall-plug standby power below 0.5W for energy compliance, and PPS simplifies PCB routing when Wi-Fi module placement dictates I/O pin reassignment.
Recommended
Portable Medical Monitoring Devices
The PIC16F15225-I/ST's low-power XLP Sleep mode and 1.8V minimum supply make it suitable for portable pulse-oximeter, glucometer, or thermometer designs where battery longevity is critical. Its 10-bit ADC samples photoplethysmography (PPG) sensors or bio-impedance electrodes with sufficient resolution for clinical-grade readings. EUSART streams processed data to BLE modules or display drivers, and 14 KB Flash stores patient log buffers and reference lookup tables. The TSSOP-14 footprint suits thin wearable enclosures, and industrial temperature grade ensures operation across varied patient environments.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F15225-I/ST — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F15224-I/ST | PIC16F15223T-I/ST | PIC16F1503-I/ST | PIC16F1455-I/ST |
|---|---|---|---|---|---|
| Package | 14-pin TSSOP (ST) | 14-pin TSSOP - same | 14-pin TSSOP - same | 14-pin TSSOP - same | 14-pin TSSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 14 KB | 7 KB (-50%) | 3.5 KB (-75%) | 7 KB (-50%) | 14 KB (same) |
| RAM | 1 KB | 512 B (-50%) | 256 B (-75%) | 384 B (-62%) | 1 KB (same) |
| Maximum CPU Clock | 32 MHz | 32 MHz (same) | 32 MHz (same) | 20 MHz (-38%) | 48 MHz (+50%) |
| ADC Resolution | 10-bit | 10-bit (same) | 10-bit (same) | 10-bit (same) | 10-bit (same) |
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | No | Yes |
| XLP Sleep Mode | Yes | Yes | Yes | Yes | Yes |
| USB Support | No | No | No | No | Yes (USB 2.0 FS) |
| Unit Price (1-piece, as of 2026-09-19) | $0.88 | $0.75 (-15%) | $0.65 (-26%) | $0.72 (-18%) | $1.05 (+19%) |
Key Differentiators
- Highest Flash density in TSSOP-14 footprint of PIC16F152xx family (vs PIC16F15224-I/ST)
- Modern XLP + PPS feature set vs older PIC16F1503 generation (vs PIC16F1503-I/ST)
- 14 KB Flash with no USB overhead vs PIC16F1455 USB variant (vs PIC16F1455-I/ST)
Design Notes
For battery-powered designs, leverage XLP Sleep mode with Watchdog Timer disabled to achieve nanoamp-level quiescent current. According to the Microchip PIC16F152xx datasheet, Sleep current can drop below 50 nA typical at 3V with all peripherals off. Use Sleep + periodic Wake-up via WDT for duty-cycled sensor sampling, and verify Sleep current on the actual PCB layout - leakage from I/O pins, pull-ups, or external components often dominates. Add a bulk decoupling capacitor (1uF to 10uF ceramic) close to VDD pin to handle inrush when waking.
TSSOP-14 has a 0.65 mm pin pitch, which requires careful PCB layout for manufacturability. Per Microchip TSSOP-14 land pattern recommendations, use NSMD (non-solder mask defined) pads with at least 0.2 mm solder mask expansion, and ensure the PCB fab supports 0.65 mm pitch (most do, but verify with your CM). Place decoupling capacitors (100 nF + 1uF ceramic) within 2 mm of VDD (pin 1) and VSS (pin 14), and route the ICSP signals RA0/RA1 away from PWM traces to avoid programming noise coupling.
A common pitfall is forgetting that MCLR pin (RA3) is shared with a general-purpose I/O - leaving MCLR unconnected can cause unreliable resets if the pin floats. According to the Microchip PIC16F152xx datasheet, either enable the internal MCLR pull-up via configuration bits, or add an external 10 kohm pull-up to VDD. Another pitfall: PPS remapping requires unlocking the PPS register sequence - attempting to write PPS without the unlock fails silently. Reference the datasheet section on Peripheral Pin Select before laying out I/O assignments.
When using analog inputs (RA0-RA5, RC0-RC3), keep analog traces short and away from digital switching lines like PWM outputs or EUSART TX. Per Microchip layout guidance, place a ground pour under the MCU and use a single ground reference point to avoid ground loops. If using ADC with high-impedance sources (>10 kohm), add a 100 pF to 1 nF capacitor on the analog input pin to filter noise. Route VDD and VSS with wide traces (>=0.2 mm) to handle peak currents during Flash programming.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - this part targets consumer/industrial applications, not automotive. Halogen-free status not specified in verified web data; consult Microchip environmental compliance documentation.