PIC16F15255-I/SP - 8-Bit MCU, 14KB Flash, 32MHz | Microchip
MPN: PIC16F15255-I/SP β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.42 | $1.42 |
| 10 | $1.27 | $12.70 |
| 100 | $1.08 | $108.00 |
| 500 | $0.92 | $460.00 |
| 1,000 | $0.78 | $780.00 |
PIC16F15255-I/SP Overview
An 8-bit microcontroller is a single-chip computer that integrates a CPU, RAM, program memory, and I/O peripherals on one silicon die, using an internal data bus 8 bits wide. PIC microcontrollers sit within the larger hierarchy: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC. They are widely used in white goods, sensor nodes, and battery-powered devices where deterministic behavior, low cost, and low power matter more than raw compute throughput.
Key features include 14KB (14K x 8) Flash self-programmable memory, 1KB SRAM, 10-bit Analog-to-Digital Converter with multiple channels, two PWM modules, two CCP (Capture/Compare/PWM) blocks, hardware limit timer, EUSART, SPI and I2C communication, peripheral pin select (PPS) for flexible routing, and a watchdog timer. The XLP sleep modes reduce quiescent current to support long battery life in IoT endpoints.
The PIC16F15255 uses Microchip's enhanced mid-range 8-bit core with a 14-bit instruction word and 32MHz internal oscillator, delivering up to 8 MIPS of throughput. PPS allows digital peripheral I/O to be remapped to multiple pins, simplifying PCB layout. Integrated Intelligent Analog blocks reduce external component count by handling filtering and threshold detection in hardware, freeing the core for application logic.
Typical applications include home appliances, environmental sensor nodes, low-power IoT endpoints, LED lighting controllers, battery chargers, and small motor control boards. The PIC16F15255-I/SP suits designs needing through-hole assembly for prototyping, hand-soldered units, or industrial environments where leaded packages survive mechanical stress better than QFN.
When designing with this part, allocate the PPS map early so each peripheral signal lands on a routable pin, and verify the 10-bit ADC input channel count against your sensor matrix. The 28-pin SPDIP leaves generous board space but consumes more PCB area than SSOP or SOIC equivalents - plan footprint accordingly if migrating to SMT later.
This page synthesizes distributor pricing, drop-in package alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers select and source the right MCU for cost-sensitive embedded designs.
Drop-in alternatives for PIC16F15255-I/SP 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 PIC16F15255-I/SP (same form factor and footprint) β differing in Data Memory (SRAM), Mounting Type, Package, Program Memory (Flash).
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16F15254-I/SP
β Drop-Inπ Reference alternative (not in catalog)
PIC16F15245-I/SP
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
PIC16F15255-I/SO
β Drop-Inπ Reference alternative (not in catalog)
PIC16F15255-I/SS
β Drop-Inβ In Stock
$0.86 / Unit
View Datasheet βPIC16F15245-I/SP
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
PIC16F15255-I/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC enhanced mid-range |
| Program Memory (Flash) | 14 KB (14K x 8) |
| Data Memory (SRAM) | 1 KB |
| CPU Speed | 32 MHz (up to 8 MIPS) |
| Operating Voltage (VDD) | 1.8 V to 5.5 V |
| ADC | 10-bit |
| PWM Modules | 2 |
| CCP Modules | 2 |
| Communication | EUSART, SPI, I2C |
| Hardware Limit Timer (HLT) | Yes |
| Watchdog Timer (WDT) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| eXtreme Low-Power (XLP) | Yes |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 28-pin SPDIP (SP), through-hole |
| Pin Count | 28 |
| Mounting Type | Through-Hole (DIP) |
| RoHS Status | Compliant |
PIC16F15255-I/SP Pin Configuration
| Pin 1 | VDD β Positive supply voltage |
| Pin 2 | RA5 β Port A bit 5 / I/O |
| Pin 3 | RA4 β Port A bit 4 / I/O |
| Pin 4 | RA3/MCLR β Port A bit 3 / Master Clear (reset) |
| Pin 5 | RC5 β Port C bit 5 / I/O |
| Pin 6 | RC4 β Port C bit 4 / I/O |
| Pin 7 | RC3 β Port C bit 3 / I/O |
| Pin 8 | RC2 β Port C bit 2 / I/O |
| Pin 9 | RC1 β Port C bit 1 / I/O |
| Pin 10 | RC0 β Port C bit 0 / I/O |
| Pin 11 | RA2 β Port A bit 2 / I/O |
| Pin 12 | RA1 β Port A bit 1 / I/O / ICSPCLK |
| Pin 13 | RA0 β Port A bit 0 / I/O / ICSPDAT |
| Pin 14 | VSS β Ground reference |
| Pin 15 | RA7/OSC1 β Port A bit 7 / Oscillator input |
| Pin 16 | RA6/OSC2 β Port A bit 6 / Oscillator output |
| Pin 17 | RC7 β Port C bit 7 / I/O |
| Pin 18 | RC6 β Port C bit 6 / I/O |
| Pin 19 | RB7 β Port B bit 7 / I/O |
| Pin 20 | RB6 β Port B bit 6 / I/O |
| Pin 21 | RB5 β Port B bit 5 / I/O / ADC |
| Pin 22 | RB4 β Port B bit 4 / I/O / ADC |
| Pin 23 | RB3 β Port B bit 3 / I/O / ADC |
| Pin 24 | RB2 β Port B bit 2 / I/O / ADC |
| Pin 25 | RB1 β Port B bit 1 / I/O / ADC |
| Pin 26 | RB0 β Port B bit 0 / I/O / ADC |
| Pin 27 | RA3 β Port A bit 3 / I/O (shared with MCLR function) |
| Pin 28 | NC β Not connected (per datasheet pinout) |
Typical Applications
PIC16F15255-I/SP is suitable for 6 applications: Home Appliance Control, Battery-Powered IoT Sensor Nodes, LED Lighting Controllers, Small Motor Control, Industrial Sensor Interface Boards, Automotive Body Electronics (Non-Safety).
Home Appliance Control
The PIC16F15255-I/SP fits home appliance control boards because its 14 KB Flash holds full state-machine firmware for washing machines, dishwashers, or microwave ovens, while the 2x PWM and 2x CCP drive motor control signals and triac-based heater stages directly. The 10-bit ADC reads NTC temperature sensors and water level probes with adequate resolution for safety shutdowns. PPS allows engineers to route EUSART to the user-interface connector without rewiring the PCB, simplifying layout. Per the Microchip datasheet, the XLP sleep mode reduces standby current when the appliance is idle, supporting ENERGY STAR compliance. Hardware limit timer (HLT) protects motor outputs by clamping PWM duty cycle without CPU intervention.
Recommended
Battery-Powered IoT Sensor Nodes
The PIC16F15255-I/SP suits battery-powered IoT sensor nodes where its eXtreme Low-Power (XLP) sleep modes and 32 MHz performance enable multi-year battery life. The 14 KB Flash stores protocol stacks for Sub-GHz radios or BLE bridges (when paired with an external transceiver), while the 10-bit ADC digitizes analog sensors at low duty cycle. PPS allows the SPI bus to land on convenient pins for the radio module, minimizing PCB area. Per the Microchip product page, watchdog timer and external interrupts wake the MCU only when needed, holding sleep current in the nanoampere range. Industrial temperature grade supports outdoor deployments.
Recommended
LED Lighting Controllers
The PIC16F15255-I/SP drives LED lighting controllers via its 2x PWM outputs and 2x CCP blocks, supporting dimming, color mixing, and flicker-free operation at high PWM frequencies. The 10-bit ADC reads ambient light sensors and potentiometer inputs, while EUSART/SPI/I2C interface to wireless modules or DMX512 controllers. Per the Microchip datasheet, PPS lets designers remap PWM outputs to any pin in the port group, simplifying PCB routing for multi-channel LED drivers. XLP sleep modes support standby behavior in smart-bulb and architectural lighting designs.
Recommended
Small Motor Control
The PIC16F15255-I/SP runs small brushed DC or stepper motor control loops thanks to its 2x CCP/PWM blocks and hardware limit timer (HLT). The HLT enforces safe PWM duty cycles in hardware without CPU overhead, while the 10-bit ADC reads current-sense amplifiers and back-EMF feedback. PPS enables flexible PCB routing of PWM signals to MOSFET gate drivers. Per the Microchip product page, the 32 MHz core provides the bandwidth for trapezoidal commutation algorithms on small BLDC fans or pumps. Industrial temperature rating supports under-hood or industrial cabinet environments.
Recommended
Industrial Sensor Interface Boards
The PIC16F15255-I/SP suits industrial sensor interface boards where 28-pin SPDIP through-hole packaging survives mechanical stress and supports hand-rework during prototyping. The EUSART, SPI, and I2C interfaces connect to analog front ends, digital sensors, and industrial fieldbus transceivers. PPS allows multiple communication buses to coexist on the same port group without pin contention. Per the Microchip PIC16F15225/45 datasheet, the 1.8 V to 5.5 V operating range and industrial temperature grade cover 24V-derived industrial rails. The 10-bit ADC digitizes 4-20 mA loop currents and bridge sensors with adequate precision.
Recommended
Automotive Body Electronics (Non-Safety)
The PIC16F15255-I/SP powers non-safety automotive body electronics such as interior lighting controllers, seat position memory, and accessory multiplexers. The 2x PWM outputs drive LED strings and small motors, while the 10-bit ADC reads position sensors and current monitors. EUSART and SPI connect to body control modules over LIN or CAN transceivers. Per the Microchip product page, the industrial temperature grade covers cabin environments, but for under-hood or safety-critical applications an AEC-Q100 qualified PIC variant is recommended. PPS simplifies routing in space-constrained automotive PCBAs.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F15255-I/SP β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F15254-I/SP | PIC16F15245-I/SP | PIC16F15255-I/SO | PIC16F15255-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin SPDIP (SP) | 28-pin SPDIP (SP) - same | 28-pin SPDIP (SP) - same | 28-pin SOIC (SO) - surface-mount variant | 28-pin SSOP (SS) - surface-mount variant |
| Flash Memory | 14 KB | 7 KB | 7 KB | 14 KB | 14 KB |
| SRAM | 1 KB | 512 B | 512 B | 1 KB | 1 KB |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| PWM Modules | 2 | 2 | 2 | 2 | 2 |
| 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 |
| Mounting Type | Through-Hole (SPDIP) | Through-Hole (SPDIP) | Through-Hole (SPDIP) | Surface Mount (SOIC) | Surface Mount (SSOP) |
Key Differentiators
- Doubled Flash and RAM versus PIC16F15254 sibling (vs PIC16F15254-I/SP)
- Through-hole SPDIP package for prototyping and hand-soldered units (vs PIC16F15255-I/SS)
- Same die across SPDIP, SOIC, and SSOP packages (vs PIC16F15255-I/SO)
Design Notes
The PIC16F15255-I/SP operates from 1.8 V to 5.5 V. Per the Microchip datasheet, XLP sleep mode drops current to the nanoampere range, but active current at 32 MHz reaches several mA. Place a 100 nF decoupling capacitor within 5 mm of the VDD pin and a 10 uF bulk capacitor on the supply rail. For battery designs, use the watchdog timer or an external interrupt to wake only when needed - keep the CPU in sleep between sensor reads to maximize battery life.
The 28-pin SPDIP package has 2.54 mm (0.1 inch) pin pitch, standard DIP layout. Leave at least 0.5 mm clearance between pins for hand-soldering and rework. Reserve the ICSP footprint (RA0/ICSPDAT, RA1/ICSPCLK, MCLR/RA3, VDD, VSS) on every board to allow in-circuit programming without disassembly. Place the crystal or resonator within 10 mm of OSC1/OSC2 if not using the internal oscillator.
Peripheral Pin Select (PPS) lets you remap digital peripherals to multiple pins, but analog functions are pin-fixed. Map analog ADC inputs first, then assign digital peripherals via PPS to remaining pins. Keep PWM outputs near their driver stages to minimize trace inductance and ringing. Route MCLR with a 10 kohm pull-up to VDD and a 100 nF capacitor to ground for noise immunity in industrial environments.
Do not exceed 5.5 V on VDD or any I/O pin - this destroys the MCU. Ensure MCLR rises cleanly on power-up; a slow MCLR rise can cause undefined startup behavior. When migrating from PIC16F15254 firmware, verify the memory map because 7 KB Flash and 512 B SRAM are not simply addressable subsets of 14 KB / 1 KB. Use Microchip's XC8 compiler with the latest device family pack for proper peripheral library support.
Compliance Information
RoHS compliant per Microchip product page. Industrial temperature grade -40C to +85C. Not AEC-Q100 qualified; for automotive safety-critical applications select an AEC-Q100 qualified PIC16F variant instead.
