PIC16LF15354T-I/SS - 8-bit XLP MCU 7KB Flash 32MHz | Microchip
MPN: PIC16LF15354T-I/SS β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.66 | $16.60 |
| 100 | $1.47 | $147.00 |
| 500 | $1.31 | $655.00 |
| 1,000 | $1.16 | $1,160.00 |
PIC16LF15354T-I/SS Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates an 8-bit CPU, non-volatile program memory, RAM, and a mix of peripherals onto one die. PIC microcontrollers from Microchip occupy the low-power, deterministic niche of the broader microcontroller market (which also includes 32-bit ARM Cortex-M parts). The PIC16F/LF153xx family sits in Microchip's mid-range portfolio, balancing analog-rich Core Independent Peripherals (CIPs) with compact code density, and is commonly used where low sleep current, short interrupt latency, and minimal BOM cost matter more than raw CPU throughput.
Key features of the PIC16LF15354T-I/SS include 4 PWM channels, 2 comparators, a 5-bit DAC, a 10-bit ADC with computation, a Complementary Waveform Generator (CWG), 4 Configurable Logic Cells (CLC), 2 EUSART, and SPI/I2C. The device also exposes an internal temperature sensor and supports the Memory Access Partition (MAP) feature for bootloader-style code protection. The 'LF' prefix denotes the low-voltage, low-power variant versus the standard 'F' part.
Technically, the PIC16LF15354 uses a Harvard RISC architecture with a 14-bit instruction word, allowing most instructions to execute in a single clock cycle. The CWG, CLC, and PWM combine to let timing-critical waveforms run without CPU intervention, freeing the core for application code. With 25 I/O pins on the 28-SSOP footprint, designers can route multiple analog and digital functions without external muxing.
Typical applications include low-power IoT sensor nodes, battery-backed HVAC thermostats, consumer remote controls, white-goods user interfaces, and portable medical accessories. The wide 1.8-3.6 V supply window suits 2x AA / coin-cell powered designs and energy-harvesting front ends.
For robust designs, place a 0.1 uF decoupling capacitor close to VDD and a 1 uF bulk capacitor on AVDD, and follow Microchip's SSOP-28 land pattern with a continuous ground plane under the exposed paddle area when migrating to QFN variants.
This page synthesizes distributor stock and pricing (as of 2026-09-23), drop-in SSOP-28 alternatives, and engineering design notes that go beyond the manufacturer datasheet summary.
Drop-in alternatives for PIC16LF15354T-I/SS 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 PIC16LF15354T-I/SS (same form factor and footprint) β differing in ADC, DAC, Package, Core Architecture, PWM Channels.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16LF15354-I/SS
β Drop-Inπ Reference alternative (not in catalog)
PIC16F15354T-I/SS
β Drop-Inβ In Stock
$0.85 / Unit
View Datasheet βPIC16LF15344T-I/SS
β Drop-Inβ In Stock
$0.86 / Unit
View Datasheet βPIC16LF15354T-E/SS
β Drop-Inπ Reference alternative (not in catalog)
PIC16LF15354T-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 enhanced mid-range 8-bit RISC |
| CPU Speed | 32 MHz maximum (8 MIPS) |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| SRAM | 512 bytes |
| EEPROM | 224 bytes |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial) |
| I/O Pins | 25 |
| Package | 28-pin SSOP (5.30 mm body, 208 mil) |
| ADC | 10-bit with Computation (ADC2) |
| PWM Channels | 4 (10-bit) |
| Comparators | 2 |
| DAC | 5-bit |
| CWG (Complementary Waveform Generator) | Yes |
| CLC (Configurable Logic Cells) | 4 |
| EUSART | 2 |
| SPI / I2C | MSSP (SPI / I2C) |
| Timers | 5 (Timer0, Timer1/3, Timer2/4/6) |
| Internal Temperature Sensor | Yes |
| Memory Access Partition (MAP) | Yes |
| eXtreme Low-Power (XLP) | Yes |
| RoHS Status | Compliant |
| Mounting Type | Surface Mount |
PIC16LF15354T-I/SS Pin Configuration
| Pin 1 | VDD β Positive supply voltage (1.8 V to 3.6 V) |
| Pin 2 | RA5 β Port A bit 5 (I/O, analog) |
| Pin 3 | RA4 β Port A bit 4 (I/O) |
| Pin 4 | RA3 β Port A bit 3 (I/O, MCLR alternate) |
| 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, analog) |
| Pin 8 | RC6 β Port C bit 6 (I/O) |
| Pin 9 | RC7 β Port C bit 7 (I/O) |
| Pin 10 | RB7 β Port B bit 7 (I/O) |
| Pin 11 | RB6 β Port B bit 6 (I/O) |
| Pin 12 | RB5 β Port B bit 5 (I/O, analog) |
| Pin 13 | RB4 β Port B bit 4 (I/O, analog) |
| Pin 14 | VSS β Ground reference |
| Pin 15 | RC2 β Port C bit 2 (I/O, analog) |
| Pin 16 | RC1 β Port C bit 1 (I/O, analog) |
| Pin 17 | RC0 β Port C bit 0 (I/O, analog) |
| Pin 18 | RA1 β Port A bit 1 (I/O, analog) |
| Pin 19 | RA0 β Port A bit 0 (I/O, analog) |
| Pin 20 | RA2 β Port A bit 2 (I/O, analog) |
| Pin 21 | RB0 β Port B bit 0 (I/O, analog) |
| Pin 22 | RB1 β Port B bit 1 (I/O, analog) |
| Pin 23 | RB2 β Port B bit 2 (I/O, analog) |
| Pin 24 | RB3 β Port B bit 3 (I/O, analog) |
| Pin 25 | RA6 β Port A bit 6 (I/O, OSC2) |
| Pin 26 | RA7 β Port A bit 7 (I/O, OSC1) |
| Pin 27 | VSS β Ground reference |
| Pin 28 | MCLR β Master Clear reset (active-low input) |
Typical Applications
PIC16LF15354T-I/SS is suitable for 7 applications: Battery-Powered IoT Sensor Node, HVAC Thermostat and White-Goods User Interface, Consumer Remote Control, Portable Medical Accessory, LED Lighting Controller, Industrial Sensor Transmitter, Smart Home Edge Node.
Battery-Powered IoT Sensor Node
The PIC16LF15354T-I/SS is well suited to coin-cell and 2x AA IoT sensor nodes because its 1.8-3.6 V VDD window and eXtreme Low-Power (XLP) sleep modes let the part run from a single CR2032 for years. The CLC, CWG, and PWM peripherals can sequence sensors and timers without waking the core, and the ADC2 with computation offloads averaging in hardware. Typical current draw in sleep with WDT is on the order of a few hundred nanoamps, and the integrated 16 MHz HFINTOSC eliminates an external crystal to minimize BOM cost. Engineers typically pair this MCU with an SPI temperature/humidity sensor and an I2C accelerometer, using the MSSP and EUSART ports for the radio module interface.
Recommended
HVAC Thermostat and White-Goods User Interface
The PIC16LF15354T-I/SS handles user-interface scanning, triac-based heater/cooler control, and serial communications in a wall thermostat. Four PWM channels drive LED backlights, the CWG generates zero-cross triac timing, and the 5-bit DAC sets analog setpoint voltages for legacy HVAC controls. The 25 I/O pins are sufficient for a 4x4 keypad matrix plus a 7-segment display, while the internal temperature sensor enables on-board ambient measurement. Industrial -40 C to +85 C rating covers garage and attic installations, and the 7 KB Flash is enough for menu-driven UI logic with multilingual string tables.
Recommended
Consumer Remote Control
Infrared and BLE remote controls benefit from the PIC16LF15354T-I/SS's low sleep current and rapid wake time. The CLC can decode IR carrier frequencies in hardware, freeing the core from interrupt-heavy bit-banging. Two EUSARTs support dual-protocol designs (IR + RF), and the 10-bit ADC scans battery voltage for accurate low-battery reporting. With a single AAA cell, XLP sleep currents keep standby power well under 1 uA, extending battery life past 5 years. The 28-SSOP body is slim enough to fit inside a standard remote-control housing.
Recommended
Portable Medical Accessory
The PIC16LF15354T-I/SS powers handheld medical devices such as pill dispensers, peak-flow meters, and pulse-oximetry front-end boards. The 10-bit ADC with computation captures photodiode currents for SpO2 measurement while hardware averaging reduces CPU load. The MAP (Memory Access Partition) feature isolates firmware-update regions for FDA-style auditability. Low sleep current and deterministic interrupt latency from the CIP architecture support medical-grade response times. The industrial -40 C to +85 C operating range covers home and clinical environments.
Recommended
LED Lighting Controller
The PIC16LF15354T-I/SS drives RGB and tunable-white LED fixtures using its 4 PWM channels and the Complementary Waveform Generator (CWG). PWM frequencies above 100 kHz avoid audible flicker in dimming transitions, and the CLC combines comparator outputs to implement constant-current feedback loops without software. The 5-bit DAC sets analog reference levels for current-sense amplifiers. With 1.8 V minimum operation, the same firmware runs from 3.3 V logic rails or 2x AA battery packs in portable luminaires.
Recommended
Industrial Sensor Transmitter
The PIC16LF15354T-I/SS conditions analog 4-20 mA loops and digital sensor signals in factory-floor transmitters. The two on-chip comparators detect loop-fault conditions, the 10-bit ADC digitizes process variables, and the EUSART drives RS-485 or LIN bus outputs. Core Independent Peripherals offload watchdog and timer tasks, leaving the CPU free to run application-level diagnostics. The industrial -40 C to +85 C temperature range handles unconditioned cabinet environments, and the wide 1.8-3.6 V supply allows direct operation from 3.3 V industrial rails.
Recommended
Smart Home Edge Node
Smart-home edge devices such as door/window sensors, smart plugs, and battery-powered switches use the PIC16LF15354T-I/SS as the local controller. The MSSP talks to I2C sensors, the EUSART interfaces with sub-GHz radio modules, and the 4 CLCs perform hardware debouncing and pulse counting on mechanical inputs. Sleep currents in the nanoamp range let coin-cell sensors last the full multi-year service life advertised by smart-home platforms. The 28-SSOP footprint drops onto compact PCBAs designed for in-wall boxes.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF15354T-I/SS β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF15354-I/SS | PIC16F15354T-I/SS | PIC16LF15344T-I/SS | PIC16LF15354T-E/SS |
|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 7 KB | 7 KB | 7 KB | 4 KB | 7 KB |
| SRAM | 512 B | 512 B | 512 B | 256 B | 512 B |
| EEPROM | 224 B | 224 B | 224 B | 128 B | 224 B |
| Supply Voltage (VDD) | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| PWM Channels | 4 | 4 | 4 | 2 | 4 |
| Qty-1 Price (USD, 2026-09-23) | 1.85 | 1.95 | 1.85 | 1.65 | 2.10 |
Key Differentiators
- 1.8 V minimum VDD enables single-cell LiMnO2 or 2x AA designs (vs PIC16F15354T-I/SS)
- 7 KB Flash supports larger application stacks than the lower-memory siblings (vs PIC16LF15344T-I/SS)
- Industrial -40 C to +85 C temperature range for consumer and light-industrial use (vs PIC16LF15354T-E/SS)
Design Notes
Place a 0.1 uF X7R decoupling capacitor within 3 mm of each VDD/VSS pair (pins 1/14 and pins 27/14), and add a 1 uF bulk capacitor on the same rail to handle ADC2 reference transients. For battery designs, route the HFINTOSC as the default clock during sleep-to-active transitions and switch to the crystal only when needed; this keeps active-mode current draw in the low milliamp range even at 32 MHz.
Estimated: at 32 MHz with all peripherals active and 3.6 V VDD, the part draws about 8 mA, dissipating roughly 29 mW. The 28-SSOP package has a theta_JA near 80 C/W, so the junction temperature rise is around 2.3 C above ambient, well within the 85 C industrial limit. For -40 C to +125 C extended-temperature operation, validate with a thermocouple measurement on pin 1 because the SSOP paddle is not a thermal pad.
Keep the SSOP-28 land pattern to Microchip recommended dimensions (IPC-7351 nominal density), and route analog signals (AN0-AN7) on the inner layer with a guard ring tied to AVSS to minimize ADC noise pickup. The MCLR pin (pin 28) needs a 10 kohm pull-up to VDD and a 100 nF cap to ground if unused, otherwise leave it open and disable the MCLR function in the configuration words to free the pin as RA3.
Do not assume all PIC16LF153xx pinout variants are identical - the 14-pin PIC16LF15323, 20-pin PIC16LF15324/325, and 28-pin PIC16LF15344/54 share peripheral counts but differ in pin assignments for RAx/RBx/RCx. When migrating from PIC16LF15344 to PIC16LF15354, verify RC6/RC7 are available because they are absent on smaller variants. Also enable the PPS unlock sequence before remapping peripherals or the change will silently fail.
For SPI/I2C buses running above 1 MHz, add 22-ohm series resistors close to the MCU pins to dampen reflections, and keep the bus stub length below 25 mm. The MSSP peripheral supports both 100/400/1000 kHz I2C modes, but Fast-Mode Plus (1 MHz) requires the alternate pin function through PPS - configure the PPS registers in the same write cycle that enables the MSSP module.
Compliance Information
RoHS and lead-free confirmed by Microchip product page and DigiKey distributor listing. No AEC-Q100 qualification - use automotive-grade PIC16F15354 variants (Q-suffix) for vehicle applications.
