PIC16LF15345-E/SS - 8-bit MCU 14KB Flash 32MHz XLP | Microchip
MPN: PIC16LF15345-E/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.32 | $2.32 |
| 10 | $2.05 | $20.50 |
| 100 | $1.78 | $178.00 |
| 500 | $1.55 | $775.00 |
| 1,000 | $1.32 | $1,320.00 |
PIC16LF15345-E/SS Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and a rich set of peripherals (timers, ADCs, communication interfaces) into one package. PIC microcontrollers sit within the broader 8-bit microcontroller category, which trades raw MIPS for deterministic behavior, low power consumption, and ease of development. Within Microchip's portfolio, the PIC16F/PIC16LF family occupies the mid-range tier, balancing peripheral integration with compact code footprint.
Key features of the PIC16LF15345-E/SS include 4 PWM channels, a hardware Comparator, 5-bit and 8-bit DAC modules, a 10-bit ADC with computation, two EUSART modules supporting LIN/DMX, and SPI/I2C interfaces. The device consumes as little as 30 nA in Deep Sleep mode with Retention, making it well suited to eXtreme Low-Power (XLP) IoT sensor nodes, battery-backed accessories, and remote controls. The -E operating temperature designation indicates an industrial -40°C to +125°C range.
Internally, the PIC16LF15345 leverages an 8-level hardware stack, 49 instruction set architectures with 16-bit opcode, and an interrupt controller with context save/restore. The device integrates an HF and LF internal oscillator, watchdog timer with independent oscillator, and in-circuit debug via ICD. These features minimize external component count on the PCB while preserving robust field-update capability through software-readable device ID and Flash self-write.
Typical applications include low-power IoT sensor nodes, home automation wall switches, consumer white-goods user interfaces, battery-powered medical wearables, automotive accessory modules, and industrial human-machine interface panels. Designers favor this part where deterministic interrupt latency, ultra-low sleep current, and small footprint matter more than absolute MIPS.
Designers should provide a robust 100 nF decoupling capacitor adjacent to VDD and a 10 µF bulk capacitor on the analog supply rail. For applications needing higher EMI immunity, the internal HF oscillator can be paired with PLL multiplication. Ensure unused I/O pins are configured as outputs low to minimize current leakage in battery applications.
This page synthesizes drop-in compatible alternates, parametric comparison, distributor pricing, and design guidance not always available on the manufacturer datasheet summary page.
Drop-in alternatives for PIC16LF15345-E/SS — 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/SS (same form factor and footprint) — differing in ADC, Comparators, DAC, Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF15344T-I/SS
✅ Drop-In✓ In Stock
$0.86 / Unit
View Datasheet →PIC16LF15345-I/SSVAO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF15345T-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF15355-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F15345-I/SS
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →PIC16LF15345-E/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit Enhanced Mid-Range |
| Program Memory (Flash) | 14 KB (8K x 14) |
| Data RAM | 1 KB |
| Operating Frequency | 32 MHz maximum |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Operating Temperature | -40 °C to +125 °C (industrial, -E) |
| I/O Pins | 17 (approx) |
| ADC | 10-bit, multiple channels |
| DAC | 5-bit and 8-bit DAC |
| PWM Channels | 4 |
| Comparators | Yes |
| Core Independent Peripherals (CIPs) | CLC (4), CWG, NCO |
| Communication Interfaces | 2x EUSART (LIN/DMX), SPI, I2C |
| Deep Sleep Current (Retention) | 30 nA typical (XLP) |
| Package | 20-pin SSOP |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16LF15345-E/SS Pin Configuration
| Pin 1 | RA5 — I/O / CLCIN1 |
| Pin 2 | RA4 — I/O / CLCIN0 |
| Pin 3 | RA3 — I/O / MCLR |
| Pin 4 | RA2 — I/O / DAC output / CWG1FLT |
| Pin 5 | RA1 — I/O / CLCIN2 |
| Pin 6 | RA0 — I/O / CLCIN3 |
| Pin 7 | VSS — Ground |
| Pin 8 | VDD — Positive supply |
| Pin 9 | RB7 — I/O |
| Pin 10 | RB6 — I/O |
| Pin 11 | RB5 — I/O |
| Pin 12 | RB4 — I/O |
| Pin 13 | RB3 — I/O |
| Pin 14 | RB2 — I/O |
| Pin 15 | RB1 — I/O |
| Pin 16 | RB0 — I/O |
| Pin 17 | RA7 — I/O / ICSPDAT |
| Pin 18 | RA6 — I/O / ICSPCLK |
| Pin 19 | VSS — Ground |
| Pin 20 | VDD — Positive supply |
Typical Applications
PIC16LF15345-E/SS is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Home Automation Wall Switches, Consumer White-Goods User Interface, Automotive Interior Accessory Modules, Industrial Sensor/HMI Panels, Portable Medical Wearable Devices.
Battery-Powered IoT Sensor Nodes
The PIC16LF15345-E/SS is well-suited to IoT sensor nodes thanks to its 30 nA Deep Sleep current and 1.8 V minimum VDD, which allows operation directly from a single 3 V coin cell or 2x AA for multi-year battery life. Peripherals like the 10-bit ADC, EUSART, SPI, and I2C let it read temperature/humidity sensors and talk to sub-GHz radios such as the SX1276 without waking the CPU. Designers typically implement duty-cycled wake every 30 seconds, run an ADC conversion plus transmit, and return to sleep within 5 ms. Compared to a Cortex-M0+, this part draws significantly less sleep current and fits the bill where absolute MIPS throughput is not required.
Recommended
Home Automation Wall Switches
In home automation wall switches, the PIC16LF15345-E/SS drives capacitive touch buttons through its CLC peripherals and controls triac/relay outputs via the CWG (Complementary Waveform Generator) and 4 PWM channels. The 4 Configurable Logic Cells handle button debouncing and zero-cross detect in hardware, freeing CPU cycles for BLE/Zigbee stack management over EUSART. Operating voltage down to 1.8 V enables backup-supply operation during AC brownout, while the SSOP-20 footprint fits inside slim EU/US wall-box geometries. Deep Sleep of 30 nA extends battery-backed switch variants over five years.
Recommended
Consumer White-Goods User Interface
Microwave ovens, washing machines, and refrigerator displays use the PIC16LF15345-E/SS to drive 7-segment LEDs and LCD segments through its 4 PWMs and CWG, while scanning matrix keypads via digital I/O and the hardware Comparator. The hardware CWG produces complementary PWM pairs needed for synchronous rectification of LED backlights, and the 10-bit ADC reads sensor inputs (temperature, humidity). Industrial -E temperature range supports under-cabinet hot environments, and the SSOP-20 gives assembly houses no trouble with high-density SMT lines. Brown-out Reset and watchdog timer make the design robust in noisy motor environments.
Recommended
Automotive Interior Accessory Modules
The PIC16LF15345-E/SS, particularly the -VAO automotive variant, controls interior accessories such as ambient lighting clusters, seat-position memory, and USB media modules. Two EUSART channels enable simultaneous LIN bus communication with the body controller and a UART link to a Bluetooth audio module. The 4 PWMs and CWG drive 12 V RGB LED strings via MOSFET bridges, while the 10-bit ADC monitors current feedback for fault detection. Industrial -40 °C to +125 °C operating temperature survives cabin temperature extremes and engine-bay-proximity heat soak during parking.
Recommended
Industrial Sensor/HMI Panels
Industrial HMI panels integrate the PIC16LF15345-E/SS to drive LED status indicators, decode rotary encoder inputs, and serve Modbus RTU slave traffic over EUSART to a higher-level PLC. The hardware Comparator performs fast overcurrent monitoring in motor-drive circuits, triggering PWM shutdown in less than 1 µs. Industrial -E temperature rating from -40 °C to +125 °C matches factory-floor hot-spot requirements, and the SSOP-20 footprint simplifies conformal-coated PCB assembly. Internal oscillators reduce external components, lowering BOM for cost-sensitive industrial deployments.
Recommended
Portable Medical Wearable Devices
Battery-powered medical wearables such as continuous glucose monitors and pulse oximeters leverage the PIC16LF15345-E/SS for ultra-low power ADC sampling and BLE radio coordination. The 30 nA Deep Sleep Retention allows the device to wake on timer interrupt every 5 minutes to take a single ADC reading, then return to sleep, drawing well under 10 µA average current. The 1.8 V to 3.6 V supply range accommodates a single CR2032 coin cell down to its end-of-life voltage, and the 14 KB Flash fits typical RTOS-less C-based firmware stacks for these applications.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF15345-E/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF15344T-I/SS | PIC16LF15345-I/SSVAO | PIC16LF15345T-I/SS | PIC16F15345-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-20 | SSOP-20 | SSOP-20 | SSOP-20 | SSOP-20 |
| Program Memory | 14 KB Flash | 7 KB Flash | 14 KB Flash | 14 KB Flash | 14 KB Flash |
| Data RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Max Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| 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 | 2.3 V to 5.5 V |
| Automotive Grade | Industrial (-E) | Industrial (-I) | AEC-Q100 automotive (VAO) | Industrial (-I) | Industrial (-I) |
| Communication Interfaces | 2x EUSART, SPI, I2C | 2x EUSART, SPI, I2C | 2x EUSART, SPI, I2C | 2x EUSART, SPI, I2C | 2x EUSART, SPI, I2C |
Key Differentiators
- Industry-leading 30 nA Deep Sleep retention (vs PIC16F15345-I/SS)
- AEC-Q100 automotive variant available (vs PIC16LF15345T-I/SS)
- Family-wide SSOP-20 footprint compatibility (vs PIC16LF15344T-I/SS)
Design Notes
Place a 100 nF X7R ceramic decoupling capacitor within 3 mm of each VDD pin (pins 8 and 20) and a single 10 µF bulk capacitor on the analog VDD rail. For battery applications below 2.0 V VDD, enable the Power-on Reset (POR) and Brown-out Reset (BOR) to prevent Flash corruption during cell collapse. If switching noise from a nearby DC-DC converter exceeds 50 mVpp, add a ferrite bead in series with VDD to filter the supply.
Configure the MCLR/RA3 pin as MCLR (reset) function rather than as I/O, otherwise the ICSP programmer cannot communicate. Always enable the watchdog timer (WDT) in field-deployed firmware and clear it periodically; without WDT an inadvertent code lockup could leave a battery-powered IoT sensor drained. When migrating from PIC16F15345, verify VDD operating range - the LF variant requires 1.8 V minimum.
For PIC16LF15345-E/SS in SSOP-20, route traces on a 4-layer PCB with a continuous ground plane beneath the package to ensure thermal and EMI performance. Keep high-speed SPI/I2C traces short (under 25 mm) and avoid crossing ground splits; if the design uses two EUSART lines above 115,200 baud, match characteristic impedance to 50 ohm. Leave a generous copper pour around the exposed pad ground pin to dissipate heat in high-current peripheral drive applications.
Estimated: at 32 MHz full-speed operation with all peripherals active, the PIC16LF15345-E/SS draws roughly 8 mA, dissipating about 25 mW at 3.3 V. With a theta_JA near 100 °C/W on SSOP-20, junction-to-ambient temperature rise is well under 3 °C, so no heatsinking is required in -40 °C to +125 °C ambient deployments. Verify with a thermal camera in confined enclosures.
Compliance Information
RoHS compliant per Microchip product page. -E temperature variant is industrial grade; for AEC-Q100 choose the -VAO suffix variant.
