PIC16LF1455-E/JQ - 8-bit MCU 14KB Flash USB 2.0 | Microchip
MPN: PIC16LF1455-E/JQ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.92 | $2.92 |
| 10 | $2.78 | $27.80 |
| 100 | $2.35 | $235.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.78 | $1,780.00 |
PIC16LF1455-E/JQ Overview
An 8-bit microcontroller (MCU) is a small, low-power programmable processor that integrates CPU, Flash program memory, SRAM, peripherals, and I/O on a single die. The PIC16F family uses a 14-bit modified Harvard RISC instruction set and sits in the broader hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The "LF" prefix designates an extended-voltage variant (2.5 V - 5.5 V) optimized for battery-powered operation, while "XLP" denotes Microchip's eXtreme Low Power platform featuring nanoWatt XLP technology with < 1 µA typical sleep currents.
Key features include 14 KB (8 K x 14) self-programmable Flash, 1024 B SRAM, 256 B EEPROM, a 10-bit ADC with up to 9 channels, two PWM modules, an enhanced USART, an MSSP (I2C/SPI) module, and a USB 2.0 full-speed transceiver that supports both HID and CDC classes without an external crystal. The on-chip 3.3 V regulator allows single-supply operation directly from a 5 V rail when the internal regulator is enabled.
The architecture pairs a deterministic RISC core with hardware CIPs such as CWG (Complementary Waveform Generator), DSM (Data Signal Modulator), and NCO (Numerically Controlled Oscillator). These offload timing-critical tasks from the CPU, enabling deterministic motor control, lighting, and USB bridging at very low average power, and they remove the firmware overhead that typically limits 8-bit designs.
Typical applications include USB HID peripherals (keyboards, mice, custom input devices), CDC virtual COM ports, USB-to-UART bridges, USB Li-Ion battery chargers, small sensor hubs, consumer toys, and low-cost USB dongles. The wide -40 °C to +125 °C range also suits industrial sensor front-ends and automotive cabin accessories.
When designing with this device, place the USB D+/D- traces as a 90-ohm differential pair with no stubs, and provide a 10 µF bulk capacitor plus 0.1 µF decoupling within 2 mm of the VDD pin. The ICSP/ICD pins are shared with USB; plan for either programming access or USB D+/D- on the same pads.
This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16LF1455-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 PIC16LF1455-E/JQ (same form factor and footprint) — differing in Package, USB Module, Operating Temperature, Internal Oscillator, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1455-E/JQ
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1455-I/JQ
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1454-I/JQ
✅ Drop-In✓ In Stock
$1.13 / Unit
View Datasheet →PIC16LF1454-I/ML
✅ Drop-In✓ In Stock
$1.42 / Unit
View Datasheet →PIC16LF1454T-I/ML
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16LF1455-E/JQ Maximum Ratings & Electrical Characteristics
| Series | PIC® XLP™ 16F |
| Core | 8-bit RISC (14-bit instruction word) |
| Maximum CPU Frequency | 48 MHz |
| Program Memory (Flash) | 14 KB (8 K x 14) |
| Data Memory (SRAM) | 1024 B |
| EEPROM | 256 B |
| USB | USB 2.0 Full-Speed, integrated transceiver |
| ADC | 10-bit, up to 9 channels |
| Operating Voltage | 2.5 V to 5.5 V |
| Operating Temperature | -40 °C to +125 °C (E grade) |
| Package | 16-UQFN (4 x 4 mm) |
| Package Code | HVQCCN |
| Mounting Type | Surface Mount (No-Lead) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16LF1455-E/JQ Pin Configuration
| Pin 1 | RA5/ICSPCLK/D- — GPIO RA5 / ICSP clock / USB D- |
| Pin 2 | RA4/ICSPDAT/D+ — GPIO RA4 / ICSP data / USB D+ |
| Pin 3 | RA3/MCLR/VPP — GPIO RA3 / Master Clear (Reset) / Programming voltage |
| Pin 4 | RA2/T0CKI/AN2 — GPIO RA2 / Timer0 clock / ADC input AN2 |
| Pin 5 | RA1/ICSPCLK/AN1 — GPIO RA1 / ICSP clock / ADC input AN1 |
| Pin 6 | RA0/ICSPDAT/AN0 — GPIO RA0 / ICSP data / ADC input AN0 |
| Pin 7 | VSS — Ground |
| Pin 8 | VDD-MAIN — Main supply voltage (2.5 V to 5.5 V) |
| Pin 9 | RC7/RX/DT — GPIO RC7 / EUSART RX / Synchronous data |
| Pin 10 | RC6/TX/CK — GPIO RC6 / EUSART TX / Synchronous clock |
| Pin 11 | RC5/AN9 — GPIO RC5 / ADC input AN9 |
| Pin 12 | RC4/AN8 — GPIO RC4 / ADC input AN8 |
| Pin 13 | RC3/AN7 — GPIO RC3 / ADC input AN7 |
| Pin 14 | RC2/AN6 — GPIO RC2 / ADC input AN6 |
| Pin 15 | VDD-USB — USB transceiver supply voltage |
| Pin 16 | VSS-USB — USB transceiver ground |
Typical Applications
PIC16LF1455-E/JQ is suitable for 6 applications: USB HID Keyboard / Mouse, USB CDC Virtual COM Port Bridge, USB Li-Ion Battery Charger Dongle, Low-Power Sensor Hub Dongle, USB LED Lighting Controller, Automotive Cabin USB Accessory.
USB HID Keyboard / Mouse
The PIC16LF1455-E/JQ is a near-ideal core for USB HID input devices. Its integrated USB 2.0 full-speed transceiver, 1024-byte SRAM, and 14 KB Flash accommodate full HID boot-loader descriptors plus a 50x8 key matrix scan state machine. CIP peripherals such as the I/O interrupt-on-change and timer/CWG modules debounce the matrix in hardware, dropping the CPU to nanoWatt sleep between key events. The 2.5-5.5 V supply accepts single-cell Li-Ion directly, and the 48 MHz core lets designers keep the scan loop at a sub-millisecond rate without sacrificing low average power. Place 100 nF + 4.7 µF decoupling within 2 mm of VDD-MAIN, route D+/D- as a 90-ohm differential pair, and tie VBUS through a 10 k pull-up to enable full-speed detection.
Recommended
USB CDC Virtual COM Port Bridge
When migrating an existing RS-232 or UART peripheral to USB, the PIC16LF1455-E/JQ removes the need for an external USB-UART chip like the FT232R. The internal USB transceiver plus an enhanced USART (EUSART) provides a transparent UART-to-USB bridge at up to 921600 baud with the CDC class driver on the host. With 14 KB Flash, you can ship a CDC + CDC-line-control firmware plus a boot-loader for field updates. The exposed thermal pad aids heat dissipation under continuous bulk transfers. Watch the D+/D- impedance (90 ohm differential) and route them away from the EUSART lines; place a common-mode choke on VBUS if the dongle is hot-plugged into a noisy hub. Typical power budget is < 25 mA active at full speed, well within USB 2.0 high-power device limits.
Recommended
USB Li-Ion Battery Charger Dongle
Combine the integrated USB transceiver with the on-chip 10-bit ADC and a simple PWM to build a 500 mA single-cell Li-Ion charger that negotiates with a Type-A host. The PIC16LF1455-E/JQ's 2.5-5.5 V input covers the 4.2 V float, while the CWG peripheral synthesizes a constant-current/constant-voltage control loop in hardware. Designers can rely on the nanoWatt XLP sleep mode to idle under 1 µA between charge cycles and to detect VBUS removal. The 16-UQFN package sits inside a small dongle form factor. Add a 100 nF cap on VDD-MAIN plus a 4.7 µF on VDD-USB to filter switching noise from the inductor; place a thermal pad copper pour of at least 25 mm² to dissipate ~1 W during fast-charge.
Recommended
Low-Power Sensor Hub Dongle
For battery-powered sensor peripherals that connect to a host via USB, the PIC16LF1455-E/JQ delivers the right balance. The nanoWatt XLP technology drops sleep current below 1 µA, while the integrated USB transceiver wakes the device on host attach. The 1024-byte SRAM and 14 KB Flash fit a lightweight sensor front-end plus a CDC/HID composite stack. The ADC with up to 9 channels handles analog sensors directly, and the MSSP/I2C interface supports digital sensors. With a 3 V coin cell you get multi-year idle life and instant wake-up on USB attach; in industrial sensor hubs the -40 to +125 °C E grade and exposed thermal pad sustain continuous monitoring in harsh enclosures.
Recommended
USB LED Lighting Controller
Use the PIC16LF1455-E/JQ to build a USB-controlled LED driver by leveraging the CWG (Complementary Waveform Generator) and DSM (Data Signal Modulator) peripherals. These CIP blocks generate accurate PWM, dead-band control, and analog modulation in hardware, offloading the CPU for low-jitter color mixing. With 14 KB Flash you can implement DMX-over-USB, MIDI lighting, or a simple HID dimmer. The 2.5-5.5 V supply accepts 5 V USB directly, and the integrated 3.3 V regulator feeds analog references cleanly. Because PWM is hardware-driven, the firmware can sit in nanoWatt XLP sleep for most of the period, and the 48 MHz CPU can update color targets at 1 kHz with no glitch. Add a ferrite bead on VBUS plus 100 nF / 4.7 µF local caps to suppress switching noise.
Recommended
Automotive Cabin USB Accessory
The PIC16LF1455-E/JQ's -40 °C to +125 °C extended temperature grade makes it suitable for automotive cabin USB accessories such as custom infotainment HID controls, lighting rings, and HVAC trim modules. The integrated USB full-speed transceiver handles host enumeration reliably across vehicle power transients, and the on-chip 3.3 V regulator rejects the typical 9-16 V battery input once bucked down. The exposed thermal pad on the 16-UQFN package helps dissipate continuous draw from LED or relay drivers. With 14 KB Flash you can ship a USB HID stack plus a small custom protocol; nanoWatt XLP keeps idle current under 1 µA so accessories don't drain the battery when parked. Place 100 nF + 4.7 µF decoupling close to VDD pins and add a TVS on VBUS to absorb automotive transients.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1455-E/JQ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1455-E/JQ | PIC16LF1455-I/JQ | PIC16LF1454-I/JQ | PIC16LF1454-I/ML | PIC16LF1454T-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 16-UQFN (4x4) - JQ | 16-UQFN (4x4) - JQ - same | 16-UQFN (4x4) - JQ - same | 16-UQFN (4x4) - JQ - same | 16-UQFN (4x4) - ML | 16-UQFN (4x4) - ML |
| Operating Voltage | 2.5 V to 5.5 V | 3.0 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V |
| Operating Temperature | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
| Flash | 14 KB | 14 KB | 14 KB | 14 KB | 14 KB | 14 KB |
| USB Transceiver | USB 2.0 FS integrated | USB 2.0 FS integrated | USB 2.0 FS integrated | Not present (1454 family) | Not present (1454 family) | Not present (1454 family) |
| NanoWatt XLP Sleep | Yes (<1 µA) | Yes (higher than LF) | Yes (<1 µA) | Yes (<1 µA) | Yes (<1 µA) | Yes (<1 µA) |
Key Differentiators
- Extended -40 to +125 °C temperature grade (vs PIC16LF1455-I/JQ)
- Lower minimum supply voltage (vs PIC16F1455-E/JQ)
- Integrated USB 2.0 full-speed transceiver (vs PIC16LF1454-I/JQ)
Design Notes
Route the USB D+/D- pair as a 90-ohm differential pair with no stubs and keep the pair length matched to within 150 mil. Place a 100 nF + 4.7 µF decoupling capacitor within 2 mm of each VDD pin and tie the exposed thermal pad to a 25 mm² copper pour on the top layer to provide thermal relief under continuous USB traffic. The ICSP/ICD signals share the USB D-/D+ pads; if you need both ICSP and USB at the same time, add a 0-ohm resistor that the user can swap.
PIC16LF1455-E/JQ operates from 2.5 V to 5.5 V with nanoWatt XLP sleep currents below 1 µA. Estimated: with VDD=5.0 V and active CPU at 48 MHz, active current is approximately 8 mA typical, so budget 25 mA worst-case for a 5 V USB design. Add a 4.7 µF bulk cap on VDD-MAIN, a 0.1 µF ceramic close to each VDD pin, and a ferrite bead on VBUS to suppress host switching noise.
Do not confuse the 16-pin UQFN (JQ) variant with the 20-pin SSOP or 28-pin QFN (ML) variants - they share the same die but pin count and pinout differ. Ensure MCLR/VPP is tied to VDD through a 10 k resistor for normal operation, or driven high during programming. The internal 3.3 V regulator output (VDD-USB) must not be used to power external circuits except for USB pull-up - drive only the USB transceiver from this rail.
The PIC16LF1455-E/JQ's USB full-speed transceiver requires the D+/D- impedance to be tightly controlled at 90 ohms differential. Place a common-mode choke or ferrite bead on VBUS if the dongle is hot-plugged into a noisy hub. Keep the EUSART TX/RX traces away from the D+/D- pair and add ground stitching vias along the USB differential pair to reduce common-mode noise.
Compliance Information
RoHS compliant per Microchip product page. E grade is extended temperature but not AEC-Q100 qualified; AEC-Q100 qualified automotive parts are typically the PIC16F1xxx-ICE variants with a separate ordering code. Halogen-free status not explicitly stated in provided web data.
