PIC16LF1455-E/SL - 8-bit 48MHz MCU, 14KB Flash, USB | Microchip
MPN: PIC16LF1455-E/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.1 | $2.10 |
| 10 | $1.95 | $19.50 |
| 100 | $1.75 | $175.00 |
| 500 | $1.55 | $775.00 |
| 1,000 | $1.4 | $1,400.00 |
PIC16LF1455-E/SL Overview
A microcontroller (MCU) is a single-chip computer integrating a CPU, program memory (Flash), working memory (RAM), peripherals, and I/O lines. The 8-bit class optimizes for low cost, low power, and deterministic interrupt response over raw compute throughput, sitting in the taxonomy as: microcontroller -> embedded processor -> semiconductor. PIC16F1xxx devices use a 14-bit modified Harvard instruction set and feature the enhanced mid-range core, providing C-compiler-friendly architecture with linear memory access for higher code density than legacy baseline PIC cores.
Key features include a 48 MHz internal oscillator with 1% accuracy after USB tuning, a 5-bit DAC and 10-bit ADC with computation, multiple communication peripherals (I2C, SPI, EUSART), and two PWM modules with complementary outputs. The part is offered with 1 KByte SRAM, 256 bytes of EEPROM, and a 32 kHz LP oscillator for RTC mode. The nanoWatt XLP technology enables sleep currents down to sub-microampere levels, making it well-suited for battery-powered USB HID devices, wearable peripherals, and always-on sensor nodes.
The architecture uses a two-stage pipeline with hardware multiply support and a peripheral pin select (PPS) system that allows flexible remapping of digital peripherals to physical I/O pins. This reduces PCB layout constraints for compact USB dongles and embedded accessories. CIP (Core Independent Peripherals) such as the CWG, NCO, and PWM modules enable complex timing and waveform synthesis without CPU intervention, further reducing active-mode power.
Typical applications include USB Human Interface Devices (HID keyboards, mice, game controllers), USB-to-UART bridges, low-cost logic analyzers, consumer electronics remote controls, and portable medical sensors. The wide operating voltage range also supports coin-cell-powered designs such as wireless key fobs and BLE beacon firmware. The internal USB regulator and transceiver allow direct 5 V VBUS connection with proper external protection.
When designing with this part, ensure that the USB DP/DM traces are length-matched within 50 mils and routed over a continuous ground plane for impedance control. A 1 microfarad decoupling capacitor must be placed within 2 mm of VDD, and unused I/O pins must be configured as outputs low to minimize sleep current. Programming is supported via ICSP with the MPLAB X IDE and PICkit 3/4 tools.
Drop-in alternatives for PIC16LF1455-E/SL — 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 PIC16LF1455-E/SL (same form factor and footprint) — differing in Package, Operating Temperature, ADC, Mounting Type, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1454-E/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1455-E/SL
✅ Drop-In✓ In Stock
$1.34 / Unit
View Datasheet →PIC16F1454-E/SL
✅ Drop-In✓ In Stock
$0.95 / Unit
View Datasheet →PIC16LF1455-I/SL
✅ Drop-In✓ In Stock
$1.62 / Unit
View Datasheet →PIC16LF1455T-I/SL
✅ Drop-In✓ In Stock
$0.54 / Unit
View Datasheet →PIC16LF1455-E/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC enhanced mid-range 8-bit (14-bit instruction word) |
| Family | PIC XLP 16F |
| Maximum CPU Frequency | 48 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data SRAM | 1024 bytes |
| Data EEPROM | 256 bytes |
| Supply Voltage (VDD) | 1.8 V to 3.6 V (LF variant) |
| I/O Pins | 12 |
| USB Interface | USB 2.0 Full-Speed (12 Mbps), integrated transceiver |
| ADC | 10-bit, up to 9 channels, with Computation (ADC2) |
| DAC | 5-bit, 1 channel |
| Communication Peripherals | I2C, SPI, EUSART (UART) |
| PWM Modules | 2 x 10-bit PWM with complementary outputs |
| Timers | 3 x 8-bit, 2 x 16-bit |
| Package | 14-pin SOIC (SL), 0.154" / 3.90 mm body width |
| Operating Temperature | -40 C to +125 C (E = extended industrial) |
| Mounting Type | Surface Mount (Gull Wing) |
| RoHS Status | Compliant |
PIC16LF1455-E/SL Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8V to 3.6V) |
| Pin 2 | RA5/OSC1/CLKIN — GPIO RA5 / external oscillator input |
| Pin 3 | RA4/AN3/OSC2/CLKOUT — GPIO RA4 / analog input 3 / oscillator output |
| Pin 4 | RA3/MCLR/VPP — GPIO RA3 / Master Clear reset (active low) / programming voltage |
| Pin 5 | RC5 — GPIO RC5 |
| Pin 6 | RC4 — GPIO RC4 |
| Pin 7 | RC3/AN7 — GPIO RC3 / analog input 7 |
| Pin 8 | RC6 — GPIO RC6 |
| Pin 9 | RC7/D+ — GPIO RC7 / USB Data Plus line |
| Pin 10 | RB7/D- — GPIO RB7 / USB Data Minus line |
| Pin 11 | RB6 — GPIO RB6 |
| Pin 12 | RB5/AN11 — GPIO RB5 / analog input 11 |
| Pin 13 | RB4/AN10 — GPIO RB4 / analog input 10 |
| Pin 14 | VSS — Ground reference |
Typical Applications
PIC16LF1455-E/SL is suitable for 6 applications: USB HID Peripheral Devices, USB to UART Bridge Dongles, Battery-Powered IoT Sensor Nodes, Consumer Electronics Remote Controls, Low-Cost Logic Analyzers and Test Gear, Wearable Fitness and Health Devices.
USB HID Peripheral Devices
The PIC16LF1455-E/SL is purpose-built for USB Human Interface Device (HID) class peripherals such as keyboards, mice, game controllers, and remote controls. Its integrated USB 2.0 Full-Speed transceiver with on-chip pull-up resistor eliminates the external USB PHY typically required on competing 8-bit MCUs. The 14 KB Flash easily accommodates USB HID report descriptors, and the 48 MHz core provides ample bandwidth for HID polling at 1 kHz with margin for debounce and processing. The XLP nanoWatt sleep technology allows sub-microampere idle current, extending battery life in wireless peripherals. The 14-SOIC footprint supports compact dongle designs.
Recommended
USB to UART Bridge Dongles
The PIC16LF1455-E/SL serves as a low-cost USB to UART bridge, replacing dedicated bridge ICs like the CP2102 or FT232 with a reprogrammable 8-bit MCU. The integrated USB transceiver plus native EUSART peripheral provides a clean serial interface over USB CDC class at 12 Mbps. The 1 KB SRAM buffer is sufficient for 64-byte CDC packets at full throughput. Operating from 1.8 V to 3.6 V, the LF1455 can interface directly with 3.3 V or 1.8 V target MCUs without level shifters, making it ideal for firmware update dongles and embedded debug adapters. The 14-SOIC package supports hand-solderable prototypes.
Recommended
Battery-Powered IoT Sensor Nodes
The PIC16LF1455-E/SL excels in battery-powered IoT sensor nodes where its XLP nanoWatt sleep mode draws less than 1 microampere, enabling multi-year coin-cell operation. The 1.8 V minimum VDD allows direct connection to a single CR2032 or two AA alkaline cells without boost converter losses. The 10-bit ADC with Computation (ADC2) provides hardware averaging and threshold detection, offloading sensor processing from the CPU. Wake-up from sleep via interrupt on pin change supports ultra-low duty-cycle sensing, and the integrated USB transceiver enables direct configuration or firmware updates from any USB host without external components.
Recommended
Consumer Electronics Remote Controls
The PIC16LF1455-E/SL is ideal for IR/RF remote controls, where its USB transceiver enables direct firmware updates and keymap customization from a PC. The 12 I/O pins accommodate up to 12-button keypads plus an IR LED driver and status indicator. XLP sleep current extends battery life to years on a single CR2032 coin cell, and the internal 48 MHz oscillator eliminates the external resonator for both MCU clock and USB connectivity. The 5-bit DAC can generate modulated IR carrier signals without CPU intervention, while the PWM module drives status LEDs with hardware-fade effects. The 14-SOIC package fits slim remote-control enclosures.
Recommended
Low-Cost Logic Analyzers and Test Gear
The PIC16LF1455-E/SL provides the USB interface and timing core for low-cost logic analyzers, protocol sniffers, and bench instruments. The 48 MHz instruction rate captures digital signals up to 12 MHz with software-edge detection, and the 1 KB SRAM buffers short capture traces before USB upload. Multiple timer modules enable precise timestamp generation, while the PWM outputs can synthesize test stimulus patterns without CPU load. Direct USB bus-powered operation simplifies the design, and the 14-SOIC through-hole-compatible footprint supports hand-wired prototype instruments. XLP sleep minimizes idle power in bench-top instruments.
Recommended
Wearable Fitness and Health Devices
The PIC16LF1455-E/SL suits compact wearable fitness devices such as step counters, heart-rate monitors, and activity trackers. The LF variant's 1.8 V minimum VDD enables direct operation from a single 1.55 V silver-oxide button cell or rechargeable Li-ion cell. XLP nanoWatt technology extends battery life in sleep-dominant applications where the MCU wakes only on motion or button events. The integrated USB enables firmware updates and data sync via any USB charger, eliminating the need for proprietary cables. The 10-bit ADC reads battery voltage for accurate fuel gauging, and the 14-SOIC fits inside sealed silicone wristbands or clip-on form factors.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1455-E/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1454-E/SL | PIC16F1455-E/SL | PIC16F1454-E/SL | PIC16LF1455-I/SL | PIC16LF1455T-I/SL |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC (SL) | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same |
| Program Memory (Flash) | 14 KB | 7 KB (-50%) | 14 KB (same) | 7 KB (-50%) | 14 KB (same) | 14 KB (same) |
| Operating Voltage (VDD) | 1.8 V to 3.6 V | 1.8 V to 3.6 V (same) | 2.3 V to 5.5 V (+28% lower min) | 2.3 V to 5.5 V | 1.8 V to 3.6 V (same) | 1.8 V to 3.6 V (same) |
| Maximum CPU Frequency | 48 MHz | 48 MHz (same) | 48 MHz (same) | 48 MHz (same) | 48 MHz (same) | 48 MHz (same) |
| USB Transceiver | Integrated Full-Speed | Integrated Full-Speed (same) | Integrated Full-Speed (same) | Integrated Full-Speed (same) | Integrated Full-Speed (same) | Integrated Full-Speed (same) |
| I/O Pins | 12 | 12 (same) | 12 (same) | 12 (same) | 12 (same) | 12 (same) |
| Operating Temperature | -40C to +125C (E = extended) | -40C to +125C (same) | -40C to +125C (same) | -40C to +125C (same) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| Delivery Packaging | Tube | Tube | Tube | Tube | Tube | Tape and Reel |
Key Differentiators
- Maximum Flash memory in the 14-SOIC PIC16F145x family (vs PIC16LF1454-E/SL)
- Lower minimum VDD for coin-cell battery designs (vs PIC16F1455-E/SL)
- Extended industrial temperature grade option (vs PIC16LF1455-I/SL)
Design Notes
Route the USB D+ and D- differential pair on the top layer with 90-ohm differential impedance, length-matched within 50 mils, and surrounded by a continuous ground plane for return current. Place a 100 nF decoupling capacitor within 2 mm of the VDD pin (pin 1) and a 10 microfarad bulk capacitor near the USB VBUS input. The exposed thermal pad is not present on the 14-SOIC package; copper pour on all layers improves thermal dissipation but is not required for the LF1455's typical 50-100 mW operating power.
The PIC16LF1455's XLP nanoWatt sleep mode draws less than 1 microampere at 1.8 V, but the integrated USB transceiver adds up to 1.5 mA during active USB traffic. Estimate average power as P_avg = (I_sleep x t_sleep + I_active x t_active) x VDD; for a HID keyboard with 99% sleep duty, total average current stays below 50 microampere from a 3.0 V supply. Always configure unused I/O pins as outputs driving low before entering sleep to eliminate floating-input leakage paths that can add 1-2 microampere per pin.
Do not omit the MCLR pull-up resistor on pin 4 - the LF1455 will fail to start reliably without a 10 kohm pull-up to VDD and may enter programming mode if the line floats. Also, never apply VDD above 3.6 V to the LF variant; transients above 4.0 V will damage the internal USB regulator. For ICSP programming, ensure the PGD/PGC lines are isolated from application circuitry with series resistors to prevent contention during debug. The internal 48 MHz oscillator is factory-calibrated but may drift up to 2% over temperature; use the 32 kHz SOSC or external crystal if USB timing must hold tighter than +/-0.25%.
Compliance Information
RoHS and REACH compliant per Microchip product declaration. E suffix denotes extended industrial temperature grade (-40 C to +125 C) but does NOT imply AEC-Q100 automotive qualification; for AEC-Q100 Grade 0 automotive designs use the PIC16F1455-E/SL equivalent via PPAP. Halogen-free per Microchip 2014 product transition announcement.
