PIC16LF1454-E/JQ - 8-Bit USB MCU, 14KB Flash, XLP | Microchip
MPN: PIC16LF1454-E/JQ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.66 | $16.60 |
| 100 | $1.48 | $148.00 |
| 500 | $1.32 | $660.00 |
| 1,000 | $1.18 | $1,180.00 |
PIC16LF1454-E/JQ Overview
An 8-bit microcontroller (MCU) is a small computer-on-a-chip integrating a CPU, program memory (Flash), data memory (RAM), peripherals, and I/O. Microcontrollers sit at the lowest tier of the embedded computing hierarchy: MCU -> embedded controller -> embedded system -> electronic product. The "LF" prefix in PIC16LF1454 denotes the Low-Frequency/Low-Power variant, paired here with Microchip's eXtreme Low Power (XLP) technology, which delivers nanoWatt sleep currents suitable for battery-powered and USB bus-powered designs. The PIC16 family occupies the mid-range 8-bit segment in Microchip's portfolio, between the baseline PIC10/12 and the high-performance PIC18/dsPIC families.
Key features include a full-speed USB 2.0 peripheral with internal transceiver, 14KB self-programmable Flash, 256 bytes of EEPROM, a 10-bit ADC with up to 9 channels, two 8-bit timers plus one 16-bit timer, PWM/Signal Measurement peripherals, and a configurable Logic Cell. The integrated 48 MHz internal oscillator eliminates the need for an external crystal in many USB applications, reducing BOM cost and PCB area.
The PIC16LF1454 architecture uses a 14-bit instruction width and a hardware stack, with a single-cycle hardware multiplier and interrupt controller supporting up to 18 sources. The integrated USB module includes a dedicated 3.3V regulator and pull-up resistor control, simplifying USB device hardware designs.
Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridges, low-power sensor nodes, consumer electronics accessories, and battery-powered data loggers. Its combination of integrated USB and nanoWatt XLP standby makes it well suited for USB bus-powered or coin-cell designs.
Designers should note that the UQFN-16 (JQ) exposed pad must be soldered to a ground copper pour for proper thermal and electrical performance, and decoupling capacitors should be placed close to VDD. For USB applications, the 48 MHz accuracy of the internal oscillator meets the USB full-speed clock tolerance specification.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, supporting faster component selection and sourcing.
Drop-in alternatives for PIC16LF1454-E/JQ — 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/JQ (same form factor and footprint) — differing in Operating Temperature, Program Memory (Flash), Package, Core, Internal Oscillator.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1455-E/JQ
✅ Drop-In✓ In Stock
$1.78 / Unit
View Datasheet →PIC16LF1459-E/JQ
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1454-E/JQ
✅ Drop-In✓ In Stock
$0.92 / Unit
View Datasheet →PIC16LF1454-I/JQ
✅ Drop-In✓ In Stock
$1.13 / Unit
View Datasheet →PIC16F1455-E/JQ
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1454-E/JQ Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 enhanced mid-range 8-bit |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data RAM | 512 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 48 MHz |
| Supply Voltage (VDD) | 2.3 V to 5.5 V |
| Operating Temperature | -40 C to +125 C (E = Extended) |
| Package | 16-pin UQFN (4x4 mm) with exposed pad (JQ) |
| USB Module | USB 2.0 Full-Speed with internal transceiver |
| ADC | 10-bit, up to 9 channels |
| Timers | 2 x 8-bit, 1 x 16-bit |
| Internal Oscillator | Yes, 48 MHz (USB-accurate) |
| XLP (eXtreme Low Power) | Yes, nanoWatt technology |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16LF1454-E/JQ Pin Configuration
| Pin 1 | RA0/ICSPDAT — GPIO RA0 / ICSP data (programming) |
| Pin 2 | RA1/ICSPCLK — GPIO RA1 / ICSP clock (programming) |
| Pin 3 | RA2 — GPIO RA2 |
| Pin 4 | RA3/MCLR — GPIO RA3 / Master Clear (reset, active low) |
| Pin 5 | RA4 — GPIO RA4 |
| Pin 6 | RA5 — GPIO RA5 |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — Positive supply (2.3V to 5.5V) |
| Pin 9 | RB4 — GPIO RB4 |
| Pin 10 | RB5 — GPIO RB5 |
| Pin 11 | RB6 — GPIO RB6 |
| Pin 12 | RB7 — GPIO RB7 |
| Pin 13 | D- — USB D- differential data line |
| Pin 14 | D+ — USB D+ differential data line |
| Pin 15 | RC6 — GPIO RC6 |
| Pin 16 | RC7 — GPIO RC7 |
Typical Applications
PIC16LF1454-E/JQ is suitable for 6 applications: USB HID Peripheral Devices, USB to UART Bridge, Battery-Powered Sensor Node, Consumer Electronics Accessories, Industrial Control and Monitoring, USB Data Logger.
USB HID Peripheral Devices
The PIC16LF1454-E/JQ is ideally suited for USB Human Interface Devices (HID) such as custom keyboards, mice, game controllers, and presenter remotes. Its integrated USB 2.0 Full-Speed transceiver eliminates the need for an external PHY, while the 48 MHz internal oscillator meets USB Full-Speed clock accuracy without an external crystal. With 14 KB of Flash and 512 bytes of RAM, the device comfortably supports HID report descriptors and small protocol stacks. The XLP nanoWatt technology enables bus-powered designs that draw minimal current when idle, critical for HID devices that must comply with USB suspend current limits (500 uA). Combined with the small 16-pin UQFN footprint, this MCU keeps total BOM and PCB area minimal for compact HID peripherals.
Recommended
USB to UART Bridge
The PIC16LF1454-E/JQ functions as a compact USB-to-serial bridge, converting between USB CDC and UART for legacy equipment modernization. The integrated USB device peripheral handles enumeration and CDC ACM class drivers natively, while the EUSART peripheral provides UART signaling at standard baud rates up to 115.2 kbps and beyond. With 14 KB Flash, the device accommodates USB stack, CDC class handler, and UART command interpreter code. The 2.3V to 5.5V VDD range allows the bridge to operate from either USB bus power (5V) or 3.3V logic domains. The 16-pin UQFN footprint is small enough to fit inside a USB connector shell, enabling dongle-style form factors for industrial debug and field service tools.
Recommended
Battery-Powered Sensor Node
The PIC16LF1454-E/JQ's nanoWatt XLP technology delivers sleep currents in the nanoampere range, making it well suited for battery-powered wireless or wired sensor nodes. The 10-bit ADC with up to 9 channels supports direct interface to analog sensors such as temperature, light, or battery voltage monitors without external signal conditioning. The 14 KB Flash accommodates sensor calibration tables, smoothing algorithms, and communication stacks. With a 2.3V minimum VDD, the device operates directly from a single lithium coin cell, eliminating boost converter complexity. The exposed-pad UQFN-16 package provides adequate thermal dissipation for moderate duty-cycle measurements, and the small footprint allows integration into miniaturized sensor housings for IoT edge devices.
Recommended
Consumer Electronics Accessories
Consumer accessories such as smart remote controls, fitness trackers, and small appliances benefit from the PIC16LF1454-E/JQ's combination of USB connectivity, low power, and compact size. The device's 48 MHz performance supports responsive user interfaces including button matrix scanning, LED PWM dimming, and basic display drive. The 256-byte EEPROM stores user preferences, calibration data, and pair information without wearing out Flash. The XLP sleep modes allow accessories powered from USB or coin cells to last years on a single battery. The 16-pin UQFN package enables integration into slim consumer enclosures where PCB real estate is at a premium, and the 2.3V to 5.5V VDD range supports direct operation from USB or single-cell Li-ion chemistries.
Recommended
Industrial Control and Monitoring
In industrial environments, the PIC16LF1454-E/JQ serves as a small-footprint controller for sensor interfacing, actuator drive, and USB diagnostics ports on larger equipment. The extended -40C to +125C temperature range (E suffix) handles factory floor thermal stress, while the 5.5V maximum VDD allows direct connection to 5V sensor rails and 24V systems via external regulators. The integrated 10-bit ADC with multiple channels monitors process variables, while PWM outputs drive valves, motors, or indicator LEDs. USB connectivity enables configuration, firmware update, and data logging via laptop connection without requiring specialized programming tools. The 14 KB Flash supports IEC 61131-3 style logic plus communication stacks for industrial protocols.
Recommended
USB Data Logger
The PIC16LF1454-E/JQ forms the heart of compact USB data loggers for field measurement of temperature, humidity, or process variables. With 14 KB Flash and 512 bytes of RAM, the device buffers sensor readings while the USB port is unplugged, then transfers accumulated data via USB CDC when plugged in. The 256-byte EEPROM retains calibration coefficients and logger configuration across power cycles. The XLP nanoWatt sleep currents allow multi-month deployments on coin-cell or AAA battery power between USB readout events. The 16-pin UQFN package fits into credit-card-sized enclosures, while the internal 48 MHz oscillator eliminates crystal cost for this low-cost measurement category.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1454-E/JQ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1455-E/JQ | PIC16LF1459-E/JQ | PIC16F1454-E/JQ |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 16-pin UQFN (JQ, 4x4 mm) | 16-pin UQFN (JQ, 4x4 mm) | 16-pin UQFN (JQ, 4x4 mm) | 16-pin UQFN (JQ, 4x4 mm) |
| Core | PIC16 8-bit | PIC16 8-bit | PIC16 8-bit | PIC16 8-bit |
| Program Memory | 14 KB Flash | 14 KB Flash | 14 KB Flash | 14 KB Flash |
| RAM | 512 B | 512 B | 1 KB | 512 B |
| USB | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed |
| Max CPU Speed | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Temperature Grade | Extended (-40 to +125 C) | Extended (-40 to +125 C) | Extended (-40 to +125 C) | Extended (-40 to +125 C) |
| XLP Low Power | Yes | Yes | Yes | No (F variant, not LF) |
Key Differentiators
- Lower voltage operation and nanoWatt XLP (vs PIC16F1454-E/JQ)
- Same UQFN-16 JQ footprint as PIC16LF1455 family (vs PIC16LF1459-E/JQ)
- Integrated USB 2.0 Full-Speed with internal 48 MHz oscillator (vs PIC16F1454-E/JQ (same family without USB))
Design Notes
The PIC16LF1454-E/JQ uses a UQFN-16 package with an exposed thermal pad that MUST be soldered to a ground copper pour on the PCB for proper thermal dissipation and electrical performance. Place a 0.1 uF decoupling capacitor as close as possible to the VDD pin (pin 8) with the ground return via short to the VSS pin (pin 7). The USB D+/D- traces (pins 13/14) should be routed as a 90 ohm differential pair with matched length and continuous ground reference for USB Full-Speed signal integrity.
When using the PIC16LF1454-E/JQ for USB Full-Speed operation, the 48 MHz internal oscillator accuracy must meet the USB clock tolerance specification of +/- 0.25%. The internal HFINTOSC is rated for this tolerance across the 2.3V to 5.5V range, but verify with the USB clock tuning registers (OSCTUNE) at production test. Do not connect MCLR (pin 4) directly to VDD; use a 10 kohm pull-up to VDD to allow in-circuit serial programming (ICSP).
Estimated: At 48 MHz CPU clock and full USB activity, the PIC16LF1454 draws approximately 8-12 mA from VDD. In XLP sleep mode with USB suspend, current drops below 1 uA, making the device suitable for USB suspend-compliant designs. Add a bulk capacitor of at least 4.7 uF near VDD to handle USB inrush during host enumeration. For battery-powered designs, the LF variant's low-voltage operation down to 2.3V enables direct connection to single-cell LiCoin or alkaline chemistries.
Compliance Information
RoHS compliant and lead-free per Microchip product page. Not AEC-Q100 qualified; for automotive applications consult Microchip's automotive-grade PIC16 portfolio. Halogen-free per Microchip's environmental compliance declarations.
