PIC16LF15356-E/MX - 28KB Flash, 32MHz 8-bit MCU | Microchip
MPN: PIC16LF15356-E/MX ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.18 | $21.80 |
| 100 | $1.82 | $182.00 |
| 500 | $1.55 | $775.00 |
| 1,000 | $1.32 | $1,320.00 |
PIC16LF15356-E/MX Overview
An 8-bit PIC microcontroller (MCU) is a single-chip computer built on a Harvard architecture, integrating a CPU, non-volatile Flash, SRAM, peripherals, and interrupt logic in one package. PIC microcontrollers sit within the broader category hierarchy of microcontrollers (MCU) -> embedded controllers -> semiconductor devices, and they remain widely used in cost-sensitive embedded applications because of their deterministic instruction set, low power, and mature toolchain (MPLAB X IDE, XC8 compiler).
The PIC16LF15356 combines Core Independent Peripherals (CIPs) with intelligent analog. It includes 2 KB SRAM, 4 PWM channels, a comparator, a 5-/8-bit DAC, an ADC, a Complementary Waveform Generator (CWG), 4 Configurable Logic Cells (CLC), 2 EUSART, plus MSSP supporting SPI and I2C. This combination enables sensor interfacing, motor and lighting control, and human-machine interface tasks with minimal CPU intervention.
From an architectural standpoint the PIC16 core executes one instruction per cycle (excluding branches), giving predictable timing for interrupt-driven firmware. On-chip peripherals are mapped to I/O pins through Peripheral Pin Select (PPS), which simplifies PCB routing on the small 6x6 mm UQFN-28 footprint. The 32 MHz internal oscillator and nanoWatt XLP technology let designers eliminate external crystals for many applications.
Typical uses include IoT sensor nodes, low-power wireless sensor platforms, LED lighting control, small motor control (fans, BLDC drivers), battery chargers, home appliances, and industrial sensor interfaces. The 2 KB SRAM and 28 KB Flash comfortably fit Zigbee/BLE stacks from Microchip's protocol libraries plus application code.
When laying out the board, follow Microchip's 28-pin UQFN land pattern recommendation, place a 0.1 uF decoupling capacitor as close as possible to VDD, and respect the exposed thermal pad connection to GND for thermal dissipation. Avoid routing high-speed digital signals under the QFN paddle to limit coupling.
This page synthesizes distributor pricing, drop-in alternatives, application guidance, and design notes not consolidated on the manufacturer datasheet, with prices referenced as of 2026-09-23.
Drop-in alternatives for PIC16LF15356-E/MX — 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 PIC16LF15356-E/MX (same form factor and footprint) — differing in Package, DAC, ADC, Operating Temperature, Comparators.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF15355-I/MV
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.05 / Unit
View Datasheet →PIC16LF15355-E/SS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.28 / Unit
View Datasheet →PIC16LF15354-I/MV
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.89 / Unit
View Datasheet →PIC16LF15354-E/ML
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.85 / Unit
View Datasheet →PIC16LF15344T-I/SS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.86 / Unit
View Datasheet →PIC16LF15345T-I/SO
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.78 / Unit
View Datasheet →PIC16LF15356-E/MX Maximum Ratings & Electrical Characteristics
| Core | PIC16 8-bit RISC |
| Program Memory (Flash) | 28 KB (16K x 14) |
| SRAM | 2 KB |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Package | 28-pin UQFN (6x6 mm) |
| Mounting Type | Surface Mount |
| PWM Channels | 4 |
| ADC | Yes (on-chip) |
| DAC | Yes (5/8-bit) |
| Comparators | Yes |
| Complementary Waveform Generator (CWG) | Yes |
| Configurable Logic Cells (CLC) | 4 |
| EUSART | 2 |
| MSSP (SPI / I2C) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| eXtreme Low-Power (XLP) | Yes |
| Operating Temperature | -40C to +125C (E = Extended) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16LF15356-E/MX 28-pin uqfn (6x6 mm) Pin Configuration Guide
Pin configuration for PIC16LF15356-E/MX (28-pin uqfn (6x6 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC16LF15356-E/MX.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC16LF15356-E/MX is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, LED Lighting Control, Small Motor and Fan Control, Home Appliance HMI and Control, Industrial Sensor Interface Modules, Portable Medical and Wellness Devices.
Battery-Powered IoT Sensor Nodes
The PIC16LF15356-E/MX is well suited to battery-powered IoT sensor nodes that require long sleep cycles and periodic wireless transmissions. Its 1.8-3.6 V LF supply range accepts a single-cell Li-ion or two alkaline cells directly without boost conversion. XLP nanoWatt technology enables sleep currents below 1 uA, while the 32 MHz HFINTOSC wakes the part within microseconds for a sensor read-and-transmit burst. The 28 KB Flash fits Microchip's BLE or Zigbee protocol libraries plus application code, and the 2 KB SRAM accommodates packet buffers. Pair the MCU with a low-power radio such as Microchip's RN4871 or SAM R34 for a complete coin-cell-friendly node. The UQFN-28 6x6 mm package suits compact sensor modules where PCB area is constrained.
Recommended
LED Lighting Control
The PIC16LF15356-E/MX drives multi-channel LED lighting fixtures by combining 4 PWM channels with the Complementary Waveform Generator (CWG) and 4 Configurable Logic Cells (CLC). Engineers can generate dimming waveforms, color-mixing sequences, and dead-time control for FET drivers entirely in hardware, offloading the CPU for wireless control stacks. The integrated 5/8-bit DAC provides reference levels for constant-current LED drivers, while the comparator enables hardware-based over-temperature or over-current protection. The CLC blocks can implement custom logic such as DMX/RDM receive preprocessing or smoothing filters without external glue logic. This makes the device ideal for architectural lighting, automotive interior lighting, and decorative RGBW strips. The UQFN-28 6x6 mm footprint suits compact driver PCBs that sit inside the fixture housing.
Recommended
Small Motor and Fan Control
The PIC16LF15356-E/MX is a strong fit for low-voltage brushless DC (BLDC) and brushed DC motor control in fans, pumps, and small appliances. The Complementary Waveform Generator (CWG) provides hardware dead-time insertion for half-bridge FET drivers, while the 4 PWM channels support speed control loops. The 2 EUSART interfaces allow simultaneous communication with a host controller and a position sensor (Hall or encoder), and the comparator performs fast hardware over-current protection without CPU latency. The on-chip ADC samples motor current and back-EMF for sensorless control schemes. The CLC blocks implement custom commutation tables that run autonomously. The UQFN-28 package fits inside compact motor housings, and the extended -40C to +125C temperature grade supports automotive and industrial environments.
Recommended
Home Appliance HMI and Control
The PIC16LF15356-E/MX serves as the main controller in home appliances such as coffee machines, washing machines, and air purifiers, where it integrates capacitive touch sensing, sensor readout, and communication to a host MCU. The 4 Configurable Logic Cells (CLC) implement capacitive touch decoding in hardware, reducing CPU load and improving EMC immunity. The MSSP supports SPI displays and I2C sensors, and the 2 EUSART ports enable simultaneous Wi-Fi/BLE module interfacing plus debug logging. The LF 1.8-3.6 V XLP range simplifies power tree design by running directly from a 3.3 V regulator or battery. The extended temperature grade handles under-cabinet and garage environments. The 28 KB Flash comfortably fits state-machine firmware plus a small GUI library for entry-level HMI.
Recommended
Industrial Sensor Interface Modules
The PIC16LF15356-E/MX is ideal for industrial sensor interface modules that bridge 4-20 mA, 0-10 V, or RTD/thermocouple inputs to a fieldbus or wireless link. Its on-chip ADC with sample-and-hold handles multiple analog channels, while the 5/8-bit DAC generates excitation currents for RTD measurement. The 2 EUSARTs support RS-485 and RS-232 simultaneously, and the MSSP provides SPI for external ADC upgrades or I2C for digital sensors. The extended -40C to +125C temperature grade supports factory floor and outdoor installations. The CLC blocks implement custom digital filters that run without CPU intervention, freeing the core for calibration and protocol handling. The UQFN-28 6x6 mm package is well suited to compact DIN-rail modules and field-mountable sensor heads.
Recommended
Portable Medical and Wellness Devices
The PIC16LF15356-E/MX fits portable medical and wellness devices such as pulse oximeters, digital thermometers, and wearable fitness bands. The LF 1.8-3.6 V XLP range accepts a single-cell Li-ion or coin cell battery directly. Sleep currents below 1 uA extend battery life for continuous-monitoring wearables, while the 32 MHz HFINTOSC provides fast wake-up for measurement bursts. The 4 PWM channels drive LED-based optical sensors, and the ADC plus comparator perform accurate photodiode signal conditioning. The MSSP SPI/I2C interface connects to BLE radios and EEPROM data logging. The extended -40C to +125C temperature grade supports a wide range of consumer and clinical environments. The UQFN-28 6x6 mm package enables compact wristband and patch form factors.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF15356-E/MX — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF15355-I/MV | PIC16LF15355-E/SS | PIC16LF15354-I/MV | PIC16LF15354-E/ML | PIC16LF15344T-I/SS | PIC16LF15345T-I/SO |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | UQFN-28 (6x6 mm) | UQFN-28 (6x6 mm) | SSOP-28 | UQFN-28 (6x6 mm) | QFN-28 (6x6 mm) | SSOP-28 | SOIC-28 |
| Flash Memory | 28 KB | 14 KB (-50%) | 14 KB (-50%) | 7 KB (-75%) | 7 KB (-75%) | 7 KB (-75%) | 14 KB (-50%) |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| PWM Channels | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| EUSART | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| CLC | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| CWG | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Largest Flash in the LF 28-pin UQFN family (vs PIC16LF15355-I/MV)
- More Flash headroom than the smaller LF devices (vs PIC16LF15354-I/MV)
- Compact 6x6 mm UQFN package with exposed thermal pad (vs PIC16LF15345T-I/SO)
Design Notes
Place a 0.1 uF decoupling capacitor as close as physically possible to the VDD pin (typically within 1-2 mm of the bond-wire lead), with a short wide trace to the GND plane. Add a bulk 1-10 uF tantalum or ceramic capacitor near the MCU to handle transient load steps when the internal radio or sensor wakes from sleep. The exposed thermal pad of the UQFN-28 package must be soldered to a continuous ground copper pour with thermal vias for heat dissipation and mechanical reliability.
Avoid routing high-frequency digital signals (SPI clock > 10 MHz, PWM edges, RF traces) under the UQFN-28 thermal pad to minimize coupling into the ground reference. Keep the ICSPDAT/ICSPCLK pins accessible for in-circuit serial programming even in production - use test pads or a header footprint. Verify the LFINTOSC accuracy at your operating voltage; below 2.5 V the HFINTOSC may exceed its +/- 2% spec, requiring calibration or an external crystal.
Use the XLP nanoWatt sleep modes (Sleep, Doze, Idle) aggressively for battery-powered designs. Typical sleep current is below 1 uA with the WDT disabled, and peripheral wake-up sources (IOC, CWG, ADC, comparator) allow the CPU to remain asleep until an event occurs. For RFID or NFC harvesting applications, the LF supply range down to 1.8 V accepts regulated outputs from energy-harvest PMICs directly without boost conversion.
Estimated: At maximum 32 MHz operation from 3.3 V the PIC16LF15356-E/MX core current is approximately 5 mA (1.85 mA/MHz * 32 MHz / 32 from datasheet typical). With a theta_JA of approximately 35 C/W on a JEDEC EIA/JESD51 4-layer test board, the worst-case self-heating rise is around 0.18 C above ambient - negligible. Even at +125C ambient the junction stays well below the 150C absolute maximum. Thermal design rarely limits this MCU, unlike power-management ICs or motor drivers.
Compliance Information
RoHS and lead-free per Microchip product page; halogen-free status not stated on the distributor listings; AEC-Q100 not applicable for this MCU grade - choose AEC-Q100-qualified PIC variants for automotive.
