PIC16LF15345-E/P - 8-bit MCU 14KB Flash 32MHz XLP | Microchip
MPN: PIC16LF15345-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.32 | $1.32 |
| 10 | $1.18 | $11.80 |
| 100 | $1.04 | $104.00 |
| 500 | $0.92 | $460.00 |
| 1,000 | $0.82 | $820.00 |
PIC16LF15345-E/P Overview
An 8-bit microcontroller is a single-chip computer built around an 8-bit data path and a RISC instruction set, integrating CPU, RAM, non-volatile program memory (Flash), EEPROM, and a rich peripheral set on a single die. PIC microcontrollers sit in the broader hierarchy of microcontrollers -> embedded processors -> semiconductor ICs and dominate cost-sensitive, low-power applications where deterministic interrupt response, simple peripheral integration, and long-term firmware stability outweigh raw computational throughput.
Key features include four 10-bit PWM outputs, a hardware comparator, a 5-bit/8-bit DAC, a 10-bit ADC with up to 17 channels, a Complementary Waveform Generator (CWG), four Configurable Logic Cells (CLC), two EUSART (Enhanced USART) modules, and SPI/I2C interfaces. The 'LF' prefix denotes the low-voltage/F-version silicon optimized for 1.8V-3.6V operation with XLP idle currents typically below 1 µA.
Architecturally, the PIC16LF15345 uses Microchip's enhanced mid-range 16-bit instruction word core with a hardware stack, vectored interrupts, and Core Independent Peripherals (CIPs) such as CLC, CWG, and NCO that offload timing-critical tasks from the CPU. The 32 MHz internal oscillator and 49 instruction-cycle-per-instruction throughput deliver roughly 8 MIPS sustained, sufficient for sensor fusion and simple protocol stacks.
Typical applications include IoT sensor nodes, battery-powered home automation, consumer appliances, LED lighting controllers, capacitive-touch user interfaces, and small industrial sensor hubs. The compact 20-pin PDIP footprint is favored for through-hole prototyping, educational platforms, and designs that benefit from socketed MCU replacement during development.
When designing with this part, choose decoupling capacitors within 3 mm of VDD and add a 10 µF bulk capacitor on the main rail; respect the 3.6 V absolute maximum on VDD to avoid latch-up, and verify the MCLR pull-up strength against your in-circuit serial programming (ICSP) probe. The 20-pin PDIP variant is preferred over QFN for hand-soldered prototypes and for designs where socketed firmware updates are required.
This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes not aggregated on the manufacturer datasheet or distributor catalog pages, helping engineers compare the PIC16LF15345 against pin-compatible siblings and competitor 8-bit MCUs in a single view.
Drop-in alternatives for PIC16LF15345-E/P — 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 PIC16LF15345-E/P (same form factor and footprint) — differing in DAC, Package, Comparators, Program Memory (Flash), ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF15345-I/P
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F15345-E/P
✅ Drop-In✓ In Stock
$0.99 / Unit
View Datasheet →PIC16LF15344-E/P
✅ Drop-In✓ In Stock
$0.83 / Unit
View Datasheet →PIC16LF15325-E/P
✅ Drop-In✓ In Stock
$0.79 / Unit
View Datasheet →PIC16LF15355-E/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF15345-E/P Maximum Ratings & Electrical Characteristics
| Product Family | PIC16(L)F153xx |
| Core Architecture | 8-bit PIC RISC enhanced mid-range |
| Program Memory (Flash) | 14 KB |
| Data RAM | 1 KB |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Operating Temperature | -40 °C to +125 °C (E = Extended) |
| Package | 20-pin PDIP (P) |
| Mounting Type | Through-Hole (THT) |
| I/O Pins | 17 (maximum) |
| ADC | 10-bit, up to 17 channels |
| DAC | 5-bit and 8-bit |
| PWM Channels | 4 x 10-bit |
| Comparators | 1 (with selectable reference) |
| Configurable Logic Cells (CLC) | 4 |
| Complementary Waveform Generator (CWG) | 1 |
| EUSART | 2 |
| SPI / I2C | 1 SPI, 1 I2C |
| Timers | 4 x 8-bit, 3 x 16-bit |
| eXtreme Low-Power (XLP) | Yes |
| RoHS Status | Compliant |
| Tube Quantity | 22 per tube |
PIC16LF15345-E/P Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Pin 2 | RA5 — Bidirectional I/O / ICSPDAT |
| Pin 3 | RA4 — Bidirectional I/O / ICSPCLK |
| Pin 4 | RA3/MCLR — Bidirectional I/O / Master Clear (reset, active low) |
| Pin 5 | RA2 — Bidirectional I/O / analog input AN2 |
| Pin 6 | RA1 — Bidirectional I/O / analog input AN1 |
| Pin 7 | RA0 — Bidirectional I/O / analog input AN0 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA7 — Bidirectional I/O / oscillator |
| Pin 10 | RA6 — Bidirectional I/O / oscillator |
| Pin 11 | RC5 — Bidirectional I/O |
| Pin 12 | RC4 — Bidirectional I/O |
| Pin 13 | RC3 — Bidirectional I/O / SCL (I2C) |
| Pin 14 | RC2 — Bidirectional I/O / SDA (I2C) |
| Pin 15 | RC1 — Bidirectional I/O |
| Pin 16 | RC0 — Bidirectional I/O |
| Pin 17 | RC6 — Bidirectional I/O / EUSART TX |
| Pin 18 | RC7 — Bidirectional I/O / EUSART RX |
| Pin 19 | RB7 — Bidirectional I/O / ICSPDAT alternate |
| Pin 20 | RB6 — Bidirectional I/O / ICSPCLK alternate |
Typical Applications
PIC16LF15345-E/P is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, LED Lighting Controllers, Capacitive-Touch User Interfaces, Small Industrial Sensor Hubs, Consumer Appliance Controls, Educational / Maker Development Boards.
Battery-Powered IoT Sensor Nodes
The PIC16LF15345-E/P is well matched to wireless sensor nodes operating from a single CR2032 coin cell or 2xAA cells because its XLP architecture delivers idle currents below 1 µA in deep sleep, and the 1.8-3.6V VDD range stays inside the usable discharge envelope of those chemistries. The 14 KB Flash accommodates BLE/Zigbee endpoint stacks plus sensor-fusion routines, while the 10-bit ADC with up to 17 channels multiplexes several analog sensors through the same MCU. The 32 MHz CPU wakes in microseconds, executes the sensor read, transmits via EUSART or SPI, and returns to sleep - duty-cycling the system to multi-year battery life on a coin cell.
Recommended
LED Lighting Controllers
Four 10-bit PWM channels and a Complementary Waveform Generator (CWG) make the PIC16LF15345-E/P a natural fit for multi-channel LED controllers, RGBW fixtures, and architectural lighting drivers. The 1.8-3.6V XLP range suits battery-driven portable fixtures, and the 32 MHz CPU sustains smooth color-mixing algorithms while the CWG handles hardware dead-time generation for half-bridge FET drivers. The hardware CLCs let designers implement glue logic like dimming-edge blanking or thermal foldback without burdening the core.
Recommended
Capacitive-Touch User Interfaces
The PIC16LF15345-E/P's four Configurable Logic Cells (CLC) and hardware comparator enable reliable capacitive-touch scanning without an external touch controller. The mTouch sensing library from Microchip uses the CLC + comparator + timer peripherals to detect capacitance change on a touch pad, freeing CPU cycles and reducing BOM cost. The 1 KB RAM and 14 KB Flash hold a complete touch UI with debounce, gesture, and LED feedback routines, and the 1.8-3.6V VDD range supports direct lithium battery operation in portable appliances.
Recommended
Small Industrial Sensor Hubs
In industrial 4-20 mA loop-powered sensor hubs, the PIC16LF15345-E/P integrates an ADC, DAC, comparator, two EUSARTs and SPI/I2C on a single die, replacing multi-IC analog front-end designs. The 32 MHz CPU executes Modbus RTU framing over EUSART while the CLC handles Manchester encoding for proprietary sensor busses, and the 17 GPIO accommodate multiple interrupt sources for alert inputs. The extended -40 to +125 °C temperature grade supports factory-floor deployment in unconditioned enclosures.
Recommended
Consumer Appliance Controls
Household appliances such as coffee machines, air purifiers, and small kitchen devices use the PIC16LF15345-E/P as a single-chip controller for motor PWM (via CWG), temperature sensing (via ADC), button input (via IOC), and status LED driving. The 32 MHz throughput runs simple FSMs and PID loops in firmware, while the 14 KB Flash stores menus, fault logs, and capacitive-touch handling. The PDIP package simplifies hand-rework during warranty service and supports socketed MCU replacement during field repair.
Recommended
Educational / Maker Development Boards
Through-hole 20-pin PDIP variants like the PIC16LF15345-E/P remain a staple in educational microcontroller curricula and maker prototyping because they are easy to insert into breadboards and IC sockets, tolerate repeated insertion cycles, and survive hand-soldering mistakes. The PICkit 4 / PICkit 5 in-circuit debuggers program the device directly via the ICSP pins on the PDIP package without adapter boards. The 14 KB Flash and rich peripheral set expose students to ADC, PWM, I2C, and UART in a single chip that costs under $1.50 in single-piece quantity.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF15345-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF15345-I/P | PIC16F15345-E/P | PIC16LF15344-E/P | PIC16LF15325-E/P | PIC16LF15355-E/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin PDIP | 20-pin PDIP - same | 20-pin PDIP - same | 20-pin PDIP - same | 20-pin PDIP - same | 20-pin PDIP - same |
| Program Flash | 14 KB | 14 KB | 14 KB | 7 KB | 14 KB | 28 KB |
| Data RAM | 1 KB | 1 KB | 1 KB | 512 B | 1 KB | 2 KB |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 16 MHz | 32 MHz | 32 MHz |
| Supply Voltage | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V | 2.3 V to 5.5 V (F) | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Operating Temperature | -40 °C to +125 °C (Extended) | -40 °C to +85 °C (Industrial) | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C |
| Price Tier (qty 1, USD) | $1.32 | $1.20 (typical) | $1.35 (typical) | $1.05 (typical) | $1.15 (typical) | $1.50 (typical) |
Key Differentiators
- Best-in-class peripheral density in 20-pin PDIP (vs PIC16LF15344-E/P)
- True 1.8 V low-voltage operation (vs PIC16F15345-E/P)
- Cost-down path within the same PIC16 family (vs PIC16F15345-E/P)
Design Notes
Place a 100 nF decoupling capacitor within 3 mm of the VDD pin and a 10 µF bulk capacitor on the same supply rail to suppress digital switching transients. According to Microchip's PIC16(L)F153xx hardware design checklist, the MCLR pin requires an external 10 kΩ pull-up to VDD; a 100 nF cap on MCLR is recommended for ICSP programming reliability.
The PIC16LF15345-E/P is the LF (low-voltage) silicon rated 1.8-3.6 V; using the F silicon (PIC16F15345-E/P at 2.3-5.5 V) in a 1.8 V design will not start the MCU. Do not confuse the LF and F variants when sourcing - they are pin-compatible but operate at different minimum VDD thresholds.
Keep analog traces (AN0-AN11) short and away from PWM/digital switching lines to minimize crosstalk into the 10-bit ADC. Reference Microchip AN248 'Analog Sensor Design with PIC MCUs' for guidance on analog ground isolation - use a single-point ground star at the VSS pin rather than daisy-chained ground pours.
When using I2C at 400 kHz Fast-mode, add 4.7 kΩ pull-ups on SDA and SCL to VDD - the internal weak pull-ups on RC3/RC4 are insufficient for reliable multi-master operation. For SPI at >4 MHz in master mode, keep trace lengths under 50 mm and add a 33 Ω series resistor at the SCK driver output to dampen ringing.
Estimated: at full 32 MHz CPU speed and all peripherals active, the PIC16LF15345-E/P draws roughly 8 mA from a 3.3 V supply (about 26 mW). The 20-pin PDIP has thermal resistance θJA of approximately 85 °C/W, so junction temperature rise is below 3 °C even with no copper pour - thermal management is not a concern for this package.
Compliance Information
RoHS and lead-free compliant per Microchip product page. Not AEC-Q100 qualified - for automotive applications, choose the PIC16LF15345-E/P automotive-grade Q1 variant or PIC16LF15325T-E/STVAO from Microchip's automotive catalog.
