PIC16LF1454T-I/JQ - 8-bit USB MCU 48MHz 14KB Flash UQFN-16 | Microchip
Teilenummer: PIC16LF1454T-I/JQ ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $1.74 | $1,74 |
| 10 | $1.56 | $15,60 |
| 100 | $1.32 | $132,00 |
| 500 | $1.18 | $590,00 |
| 1.000 | $1.05 | $1.050,00 |
PIC16LF1454T-I/JQ Übersicht
What is a microcontroller (MCU)? A microcontroller is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and peripheral interfaces (ADC, timers, communication buses, I/O). MCUs belong to the broader embedded controller family and sit at the top of the SoC (System-on-Chip) hierarchy used in modern electronics. PIC microcontrollers are 8-bit RISC devices using a Harvard architecture and a compact, deterministic instruction set, widely used in cost-sensitive and low-power embedded systems.
The PIC16LF1454 integrates XLP (eXtreme Low Power) technology, supporting sleep currents in the nanoampere range and multiple power-managed operating modes. Key peripherals include a 10-bit ADC with computation, two PWM modules, multiple timers, an enhanced USART, MSSP for I2C/SPI, and 8 general-purpose I/O pins. The integrated USB 2.0 module with on-chip transceiver and clock recovery eliminates the need for an external crystal on many USB designs, reducing BOM cost and board area.
The internal 48 MHz oscillator and PLL-derived system clock provide sufficient throughput for USB 2.0 full-speed (12 Mbps) operation while leaving headroom for protocol stacks. The 16-level hardware stack, 49 base instructions, and self-read/write capability of the flash memory support in-application firmware updates via the bootloader-friendly architecture.
Typical applications include USB HID peripherals (keyboards, mice, game controllers), USB-to-UART bridges, low-power sensor nodes, consumer accessories, and learning/evaluation platforms. The device is suitable wherever compact size, integrated USB, and ultra-low sleep current are simultaneously required.
When designing with this part, ensure the USB DP/DM traces are routed as a 90-ohm differential pair and that VUSB is properly decoupled per USB 2.0 specification. For battery applications, leverage the XLP sleep modes and verify the brown-out reset threshold is configured to match the battery cutoff voltage.
This page synthesizes distributor pricing, drop-in alternative MPNs, pin-compatible substitutes, and practical design notes compiled from Microchip's datasheet, DigiKey, Mouser, and LCSC listings, beyond what is shown in any single manufacturer page.
Drop-in-Alternativen für PIC16LF1454T-I/JQ – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC16LF1454T-I/JQ (gleiche Bauform und Footprint) – abweichend in Core Architecture, Package, I/O Pins, USB Module, Program Memory (Flash).
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC16LF1454-I/JQ
✅ Drop-In✓ Auf Lager
$1.13 / Stück
Datenblatt ansehen →PIC16F1454-I/JQ
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16LF1455-I/JQ
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
PIC16LF1454T-I/JQ Grenzwerte & elektrische Eigenschaften
| Core Architecture | PIC16 Enhanced Mid-Range 8-bit |
| Program Memory (Flash) | 14 KB (8K x 14) |
| Data Memory (SRAM) | 1 KB |
| Non-Volatile Data Storage | 128 B |
| Maximum CPU Speed | 48 MHz |
| Supply Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 8 |
| ADC | 10-bit with computation |
| PWM Channels | 2 |
| Timers | 4 |
| Communication | USB 2.0 FS, EUSART, I2C/SPI (MSSP) |
| USB Transceiver | Internal (with clock recovery) |
| Low-Power Technology | XLP (eXtreme Low Power) |
| Betriebstemperaturbereich | -40C to +85C (Industrial) |
| Gehäuse | 16-pin UQFN (4x4 mm) |
| Montageart | Surface Mount |
| MSL-Level | 3 (168 hours) |
| RoHS-Status | Compliant |
PIC16LF1454T-I/JQ Pin-Konfiguration
| Pin 1 | RA5 — Bidirectional I/O / analog input / digital input |
| Pin 2 | RA4 — Bidirectional I/O / analog input |
| Pin 3 | RA3/MCLR — Bidirectional I/O / Master Clear (reset) |
| Pin 4 | RA2 — Bidirectional I/O / analog input |
| Pin 5 | RA1 — Bidirectional I/O / analog input |
| Pin 6 | RA0 — Bidirectional I/O / analog input |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — Positive supply voltage (1.8-3.6 V) |
| Pin 9 | D+ — USB D+ data line |
| Pin 10 | D- — USB D- data line |
| Pin 11 | RC5 — Bidirectional I/O |
| Pin 12 | RC4 — Bidirectional I/O |
| Pin 13 | RC3 — Bidirectional I/O |
| Pin 14 | RC2 — Bidirectional I/O |
| Pin 15 | RC1 — Bidirectional I/O / analog input |
| Pin 16 | RC0 — Bidirectional I/O / analog input |
Typische Anwendungen
PIC16LF1454T-I/JQ ist geeignet für 6 Anwendungs: USB HID Peripheral (Keyboard/Mouse/Game Controller), USB-to-UART/I2C/SPI Bridge Adapter, Low-Power Battery Sensor Node, Consumer Accessory with USB Charging/Diagnostics, Industrial USB Data Logger, Educational/Evaluation Platform and Learning Board.
USB HID Peripheral (Keyboard/Mouse/Game Controller)
The PIC16LF1454T-I/JQ is purpose-built for USB Human Interface Devices such as keyboards, mice, gamepads, and custom input peripherals. Its integrated USB 2.0 full-speed transceiver with clock recovery eliminates the need for an external crystal on USB bus, while the 14 KB Flash is sufficient to host the HID class driver, scan matrix logic, and application firmware. The 48 MHz internal oscillator sustains 12 Mbps USB traffic with headroom for HID polling at 1 kHz. The XLP nanoamp sleep modes allow battery-powered wireless HID designs to idle for years on a single coin cell, making this part ideal for compact, low-cost USB input devices.
Empfohlen
USB-to-UART/I2C/SPI Bridge Adapter
The PIC16LF1454T-I/JQ can implement a USB CDC bridge converting USB to UART, I2C, or SPI for legacy equipment modernization. The integrated USB device module handles enumeration and CDC class driver within the 14 KB Flash, while the EUSART and MSSP peripherals expose the desired serial interface to the host MCU or sensor. The 1.8 V to 3.6 V supply range allows direct interfacing with 3.3 V logic systems without level shifters. Designers leverage the 8 I/O pins for flow-control signals (RTS/CTS) or mode-select jumpers, while the small 4x4 mm UQFN footprint fits inside D-sub or USB-stick enclosures.
Empfohlen
Low-Power Battery Sensor Node
The PIC16LF1454T-I/JQ suits battery-powered wireless sensor nodes where integrated USB enables convenient firmware updates and in-field charging. Its XLP technology delivers nanoampere sleep currents, allowing a sensor node to wake periodically, take a measurement with the 10-bit ADC, transmit, and return to deep sleep with multi-year battery life on a CR2032 coin cell. The 14 KB Flash holds application firmware plus a USB bootloader for field upgrades, while the integrated USB eliminates the need for a separate programming header. The 1.8 V minimum supply extends useful battery life below the 2.0 V cutoff of typical coin cells.
Empfohlen
Consumer Accessory with USB Charging/Diagnostics
The PIC16LF1454T-I/JQ integrates cleanly into consumer accessories that use USB for both charging and diagnostic communication, such as personal care devices, toys, and small appliances. The USB module enumerates as a CDC device for diagnostic commands while a separate power path handles battery charging. The 8 I/O pins drive LEDs, buttons, motor H-bridges, or buzzers, while the 10-bit ADC reads battery voltage and sensor inputs. The compact 4x4 mm UQFN fits inside enclosure-constrained designs, and the 1.8 V to 3.6 V supply range matches single-cell Li-ion battery topologies without external regulators.
Empfohlen
Industrial USB Data Logger
Industrial USB data loggers for temperature, humidity, pressure, or vibration monitoring benefit from the PIC16LF1454T-I/JQ's combination of USB interface, 10-bit ADC, and 14 KB Flash for buffering. The internal EEPROM-like storage holds calibration constants, while the USB CDC interface allows the host PC to download logged data and reconfigure acquisition intervals. The industrial -40C to +85C operating range suits factory floor environments, and the 16-pin UQFN's small footprint enables installation inside tight sensor housings. The integrated USB eliminates the need for an external FTDI bridge, reducing BOM cost.
Empfohlen
Educational/Evaluation Platform and Learning Board
The PIC16LF1454T-I/JQ is widely used in educational microcontroller courses and low-cost evaluation boards due to its integrated USB and free MPLAB X IDE + XC8 toolchain. The USB CDC and HID examples provided by Microchip give students an immediate hands-on path to learning USB enumeration, descriptor handling, and interrupt-driven communication. The 14 KB Flash supports reasonable C programs while the 1 KB SRAM provides working memory for USB buffers and application variables. The low $1.05 unit price at qty-1000 makes it cost-effective for classroom packs and DIY hobby projects where dozens of boards are built at once.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC16LF1454T-I/JQ – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC16LF1454-I/JQ | PIC16F1454-I/JQ | PIC16LF1455-I/JQ |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 16-pin UQFN (4x4 mm) | 16-pin UQFN (4x4 mm) - same | 16-pin UQFN (4x4 mm) - same | 16-pin UQFN (4x4 mm) - same |
| Program Memory (Flash) | 14 KB | 14 KB | 14 KB | 8 KB (-43%) |
| Data Memory (SRAM) | 1 KB | 1 KB | 1 KB | 1 KB |
| Supply Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V (+33% upper limit) | 1.8 V to 3.6 V |
| Maximum CPU Speed | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| USB Module | USB 2.0 FS with internal transceiver | USB 2.0 FS with internal transceiver | USB 2.0 FS with internal transceiver | USB 2.0 FS with internal transceiver |
| I/O Pins | 8 | 8 | 8 | 8 |
Wichtigste Unterscheidungsmerkmale
- Integrated USB 2.0 with internal transceiver and clock recovery (vs. PIC16LF1454T-I/ML)
- Lowest supply voltage at 1.8 V across PIC16F1454 family (vs. PIC16F1454-I/JQ)
- 14 KB Flash for full USB stack plus application code (vs. PIC16LF1455-I/JQ)
Designhinweise
The USB DP and DM pins (pins 9 and 10) MUST be routed as a 90-ohm differential pair with matched length to within 150 mil, and a ground reference plane on the layer immediately below. According to the Microchip PIC16F1454 datasheet (DS40001727B), improper USB routing is the leading cause of enumeration failures. Place the VUSB decoupling capacitor (typically 0.1 uF ceramic) within 3 mm of the VDD pin and avoid stubs on the DP/DM traces.
For battery-powered designs, leverage the XLP nanoamp sleep modes by configuring unused peripherals off, disabling the ADC, and using the RTC with an external 32.768 kHz crystal. According to the Microchip datasheet, sleep current can reach <30 nA in deepest mode. Estimated: a CR2032 coin cell (220 mAh) would last over 800 years in theory if no other loads are present, but practical battery self-discharge limits this to 5-10 years.
Do not skip the 10 kohm pull-up on D- (or D+ for low-speed) when designing a USB device; the host detects device connection via this pull-up. Also ensure MCLR (pin 3) is either tied to VDD through a 10 kohm resistor or driven by the programmer, never left floating. According to the Microchip datasheet, a floating MCLR causes intermittent resets during supply transients. Brown-out reset should be enabled in configuration bits to prevent code execution at insufficient VDD.
The UQFN-16 (4x4 mm) package has a center exposed thermal pad that MUST be soldered to the ground plane for mechanical reliability and thermal dissipation. According to the Microchip packaging specification, missing the center pad solder connection reduces thermal performance and may cause the package to crack under mechanical stress. Use a via array (4-9 thermal vias, 0.3 mm drill) in the center pad to transfer heat to internal ground planes.
Compliance-Informationen
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified (industrial grade -40C to +85C only). Halogen-free per Microchip environmental compliance documentation.
