PIC16LF1454-E/SL - 8-bit MCU, 14KB Flash, USB 2.0, 14-SOIC | Microchip
MPN: PIC16LF1454-E/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.63 | $1.63 |
| 10 | $1.47 | $14.70 |
| 100 | $1.21 | $121.00 |
| 500 | $1.04 | $520.00 |
| 1,000 | $0.93 | $930.00 |
PIC16LF1454-E/SL Overview
An 8-bit microcontroller (MCU) is a programmable embedded computing device built around an 8-bit data path, on-chip Flash program memory, RAM, peripherals, and I/O pins. PIC microcontrollers use a RISC architecture with a small fixed instruction set, organized within the broader taxonomy: MCU -> microcontroller -> embedded processor -> semiconductor. The PIC16F1xxx family adds enhanced mid-range features including 49 instructions, 16 stack levels, self read/write capability on Flash, and a high-endurance Flash (HEF) cell rated for 100,000 erase/write cycles.
Key features of the PIC16LF1454-E/SL include 49 instructions, 16 hardware stack levels, 128 bytes of non-volatile data storage (EEPROM-style HEF), 12 general-purpose I/O pins, an internal 48 MHz oscillator, and a USB 2.0 module with on-chip transceiver and clock recovery. Additional peripherals include multiple timers, a 10-bit ADC with capacitive touch sensing, comparators, MI2C, SPI, and USART. The XLP (eXtreme Low Power) designation delivers active currents in the microamp range and sleep currents below 1 µA typical.
The architecture combines a RISC Harvard CPU core with a single-cycle instruction pipeline and hardware multiply assist, enabling deterministic execution at 48 MIPS peak. The integrated USB 2.0 full-speed module is uncommon in this pin count and eliminates the need for an external crystal on USB applications thanks to clock recovery from the host SOF packets.
Typical applications include low-cost USB HID peripherals, capacitive touch keypads, sensor nodes with USB diagnostics, portable consumer devices, and battery-powered data loggers. In industrial settings, the part suits low-pin-count human-machine interface panels and bridging dongles. For designers considering a USB-enabled 8-bit MCU with minimal BOM, the PIC16LF1454 is a strong baseline.
When designing with this device, place the VDD/VSS decoupling pair within 3 mm of the package pins and route the USB D+/D- traces as a 90 Ω differential pair with matched length, per Microchip's USB design guidelines.
This page synthesizes distributor pricing, drop-in package alternatives, and practical design notes not found in the standalone manufacturer datasheet.
Drop-in alternatives for PIC16LF1454-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 PIC16LF1454-E/SL (same form factor and footprint) — differing in Operating Temperature, Package, PWM Modules, Supply Voltage (VDD), USB Module.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1455-E/SL
✅ Drop-In✓ In Stock
$1.4 / Unit
View Datasheet →PIC16F1454-E/SL
✅ Drop-In✓ In Stock
$0.95 / Unit
View Datasheet →PIC16F1454-I/SL
✅ Drop-In✓ In Stock
$1.15 / Unit
View Datasheet →PIC16LF1454-I/SL
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F1455-E/SL
✅ Drop-In✓ In Stock
$1.34 / Unit
View Datasheet →PIC16F1459-E/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1454-E/SL Maximum Ratings & Electrical Characteristics
| Core | PIC16 enhanced mid-range 8-bit RISC |
| Instruction Set | 49 instructions, 16 stack levels |
| Max CPU Frequency | 48 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data Memory (RAM) | 512 bytes |
| Non-volatile Data Storage | 128 bytes (HEF) |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| I/O Pins | 12 |
| USB Module | USB 2.0 Full-Speed Device with clock recovery |
| Internal Oscillator | 48 MHz (no external crystal for USB) |
| Communication | MI2C, SPI, USART, USB |
| Operating Temperature | -40°C to +125°C (E suffix = industrial) |
| Package | 14-pin SOIC (SL), 3.90 mm body width |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16LF1454-E/SL Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Pin 2 | RA5 — GPIO RA5 / ICSPDAT |
| Pin 3 | RA4 — GPIO RA4 |
| Pin 4 | RA3 — GPIO RA3 / MCLR (reset) |
| Pin 5 | RC5 — GPIO RC5 |
| Pin 6 | RC4 — GPIO RC4 |
| Pin 7 | RC3 — GPIO RC3 |
| Pin 8 | RC2 — GPIO RC2 |
| Pin 9 | RC1 — GPIO RC1 |
| Pin 10 | RC0 — GPIO RC0 |
| Pin 11 | RA1 — GPIO RA1 / ICSPCLK |
| Pin 12 | RA0 — GPIO RA0 |
| Pin 13 | VSS — Ground reference |
| Pin 14 | D- — USB D- (also multiplexed ICSP alternate function) |
Typical Applications
PIC16LF1454-E/SL is suitable for 6 applications: USB HID Peripherals, Capacitive Touch Keypads, Battery-Powered Sensor Nodes, USB-to-UART Bridge Dongles, Industrial Control Panels, Portable Consumer Electronics.
USB HID Peripherals
The PIC16LF1454-E/SL is purpose-built for USB Human Interface Device class peripherals such as keyboards, mice, game controllers, and custom HID input devices. Its integrated USB 2.0 Full-Speed device module with on-chip transceiver eliminates external USB PHY components, and clock recovery from the host SOF packets removes the need for an external 48 MHz crystal - critical for low-BOM-cost dongles. With 14 KB Flash and 512 B RAM, the device fits standard USB HID descriptors plus application firmware. The 1.8-3.6 V VDD range allows direct bus-powered operation from a 3.3 V regulator. Designers should route D+/D- as a 90 ohm differential pair with matched length per Microchip USB guidelines.
Recommended
Capacitive Touch Keypads
The PIC16LF1454-E/SL's Charge Time Measurement Unit (CTMU) combined with the 10-bit ADC enables robust capacitive touch sensing without external touch controllers, making it ideal for sealed keypads, slider controls, and proximity sensors in appliance and consumer products. The mid-range core runs touch scanning loops fast enough to handle 12+ electrodes while leaving CPU headroom for communication. The XLP deep-sleep currents below 1 µA typical allow battery-powered touch panels that last years on a coin cell. Pairing the MCU with a low-quiescent LDO such as Microchip's MCP1700 yields a complete touch front-end with a sub-2 µA quiescent budget in standby.
Recommended
Battery-Powered Sensor Nodes
The PIC16LF1454-E/SL's eXtreme Low Power (XLP) technology makes it well suited to wireless or wired sensor nodes powered by coin cells, AAA batteries, or energy harvesting sources. Sleep currents below 1 µA typical and active currents in the microamp range at 1 MHz extend operating life significantly. With 12 GPIO pins, the MCU can interface analog sensors via the 10-bit ADC, drive indicator LEDs, and communicate via MI2C/SPI to companion radios or sensors. The 1.8-3.6 V VDD range allows direct Li-ion or 2x AA operation. For more demanding nodes, designers may prefer the PIC16LF1554 for its additional ADC channels.
Recommended
USB-to-UART Bridge Dongles
The PIC16LF1454-E/SL is widely used as a low-cost USB to UART bridge in development tools, debug dongles, and field-service cables. With the USB device module, a UART peripheral, and 14 KB Flash for CDC class firmware plus custom protocols, designers can implement bridges compatible with common host drivers. The internal 48 MHz HFINTOSC is accurate enough for USB Full-Speed signaling without external crystals. For higher throughput or multi-protocol bridges, the PIC16LF1455-E/SL provides 16 KB Flash headroom. Pair with an ESD protection array on D+/D- and a 3.3V LDO for a robust dongle design.
Recommended
Industrial Control Panels
The PIC16LF1454-E/SL operates over the industrial -40°C to +125°C temperature range (E grade), making it suitable for factory automation HMI panels, low-pin-count PLC I/O modules, and machine status indicators. The PIC16 enhanced mid-range core delivers deterministic instruction execution suitable for real-time control loops. With 12 GPIO pins, designers can implement relay drivers, status LEDs, keypad scanning, and serial communication to upstream PLCs via RS-485 or MI2C. The integrated USB module also enables field-service diagnostic ports without an external MCU. For higher-pin industrial needs, the PIC16F18855-I/SS is a logical upgrade.
Recommended
Portable Consumer Electronics
The PIC16LF1454-E/SL fits low-cost portable consumer devices such as fitness bands, remote controls, gaming peripherals, and USB-charged accessories. The integrated USB module enables charging and data exchange through a single Micro-USB or USB-C connector. XLP power technology supports months of standby on a small Li-ion cell, while the 14 KB Flash fits Bluetooth/USB HID stacks plus application code. The SOIC-14 package is hand-solderable for prototype work and supports high-volume pick-and-place assembly. For richer graphics or BLE, designers typically pair this MCU with a dedicated radio SoC via SPI.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1454-E/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1455-E/SL | PIC16F1454-E/SL | PIC16F1454-I/SL | PIC16LF1454-I/SL | PIC16F1455-E/SL |
|---|---|---|---|---|---|---|
| Package | SOIC-14 (SL) | SOIC-14 (SL) - same | SOIC-14 (SL) - same | SOIC-14 (SL) - same | SOIC-14 (SL) - same | SOIC-14 (SL) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 14 KB Flash | 16 KB Flash | 14 KB Flash | 14 KB Flash | 14 KB Flash | 16 KB Flash |
| Data RAM | 512 bytes | 1024 bytes | 512 bytes | 512 bytes | 512 bytes | 1024 bytes |
| Operating Voltage (VDD) | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) | 2.3 V to 5.5 V (F) | 2.3 V to 5.5 V (F) | 1.8 V to 3.6 V (LF) | 2.3 V to 5.5 V (F) |
| USB 2.0 Full-Speed | Yes (with clock recovery) | Yes (with clock recovery) | Yes (with clock recovery) | Yes (with clock recovery) | Yes (with clock recovery) | Yes (with clock recovery) |
| Operating Temperature | -40°C to +125°C (E grade) | -40°C to +125°C | -40°C to +125°C | -40°C to +85°C (I grade) | -40°C to +85°C (I grade) | -40°C to +125°C |
| Internal Oscillator | 48 MHz HFINTOSC | 48 MHz HFINTOSC | 48 MHz HFINTOSC | 48 MHz HFINTOSC | 48 MHz HFINTOSC | 48 MHz HFINTOSC |
| GPIO Count | 12 | 12 | 12 | 12 | 12 | 12 |
Key Differentiators
- Larger memory headroom in same SOIC-14 footprint (vs PIC16LF1454-E/SL vs PIC16LF1455-E/SL)
- Wider VDD range for 5 V-tolerant designs (vs PIC16LF1454-E/SL vs PIC16F1454-E/SL)
- Industrial temperature grade in same footprint (vs PIC16LF1454-E/SL vs PIC16F1454-I/SL)
Design Notes
USB D+/D- routing is critical for signal integrity. Route the differential pair as a 90 Ω impedance-matched pair with matched trace lengths and minimal layer transitions. Place a common-mode choke or ferrite bead in series if the dongle cable exceeds 50 mm. Reference Microchip AN1997 'USB Design Considerations' for full PCB layout guidelines; keep D+/D- traces away from switching regulator or high-current traces to minimize EMI coupling into the USB data path.
Place a 100 nF decoupling capacitor within 3 mm of the VDD pin, plus a bulk 1-10 µF ceramic close to the IC. For bus-powered designs, add a 10 µF capacitor on the upstream side of the 3.3 V LDO to handle USB inrush events. The PIC16LF1454's HFINTOSC start-up time and PLL lock time create brief current spikes; sufficient bulk capacitance prevents VDD droop during enumeration. Use a low-Iq LDO such as MCP1700 for sleep-mode efficiency when VBUS is removed and the device runs from battery.
The ICSP programming pins (RA0/RA1/ICSPCLK/ICSPDAT) are multiplexed with USB D+/D- on this device. In-circuit programming while USB is connected can interfere with host enumeration. Use the alternate ICSP pair via configuration bit ICPRT to avoid contention. Additionally, the MCLR reset pin (RA3) is shared with general GPIO; configure MCLRE=0 in CONFIG1 to free RA3 as GPIO when external reset is not needed, gaining one extra I/O pin at the cost of in-circuit programming flexibility.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified (industrial -40 to +125 °C, not automotive-grade). Lead-free (Pb-free) reflow-compatible per Microchip packaging specs.
