PIC16F1454-I/SL - 8-Bit 48MHz USB MCU, 14KB Flash | Microchip
MPN: PIC16F1454-I/SL β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.1 | $2.10 |
| 10 | $1.89 | $18.90 |
| 100 | $1.62 | $162.00 |
| 500 | $1.38 | $690.00 |
| 1,000 | $1.15 | $1,150.00 |
PIC16F1454-I/SL Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and a rich set of peripherals. The PIC16F1454 belongs to the Microchip 8-bit PIC16 enhanced mid-range family (PIC16F -> 8-bit PIC -> MCU -> microcontroller -> semiconductor -> integrated circuit) and is engineered for ultra-low-power applications under the PIC XLP brand. Its instruction set provides 49 instructions with 16 stack levels, balancing code density and ease of programming for embedded developers.
Key features include a 10-bit ADC with up to 9 channels, multiple communication interfaces (USB 2.0 FS, MI2C, SPI, EUSART), four 10-bit PWM modules, and a configurable logic cell (CLC) block. The integrated 48 MHz high-precision internal oscillator eliminates the need for an external crystal in many designs. The 14-pin SOIC package supports industrial -40C to +85C operation and is suitable for hand-soldering as well as standard reflow profiles.
Typical applications include USB HID peripherals (keyboards, mice, custom HID devices), USB-to-UART bridges, low-cost consumer electronics, sensor nodes, and small home appliances. The combination of integrated USB, eXtreme Low Power (XLP) technology, and a teeny 14-pin SOIC footprint makes the PIC16F1454 a strong fit for cost-sensitive, space-constrained, USB-aware embedded designs where an external crystal is undesirable.
When designing with this device, route the D+/D- USB lines with 90-ohm differential impedance and place the 0.1uF VDD decoupling capacitor within 3 mm of the supply pin. The internal 48 MHz oscillator is trimmed at the factory, so designs that depend on tight USB timing should enable the USB clock recovery feature rather than relying solely on the HFINTOSC accuracy.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical USB design notes that go beyond the manufacturer datasheet.
Drop-in alternatives for PIC16F1454-I/SL β 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 PIC16F1454-I/SL (same form factor and footprint) β differing in Operating Temperature, Package, ADC, Core Architecture, MSL Level.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16F1455-I/SL
β Drop-Inβ In Stock
$1.55 / Unit
View Datasheet βPIC16F1459-I/SL
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1454-I/P
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1454-E/SL
β Drop-Inβ In Stock
$0.95 / Unit
View Datasheet βPIC16F1454-I/ML
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1454-I/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 enhanced mid-range 8-bit RISC |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| RAM | 1 KB |
| Non-volatile HEF Storage | 128 B |
| Maximum CPU Frequency | 48 MHz |
| Instruction Execution Time | 200 ns (at 20 MHz) / 83 ns (at 48 MHz) |
| Supply Voltage (VDD) | 2.5 V to 5.5 V |
| ADC | 10-bit, up to 9 channels |
| USB Module | USB 2.0 Full-Speed with clock recovery from host |
| Communication Interfaces | USB FS, MI2C, SPI, EUSART |
| PWM Modules | 4 x 10-bit PWM |
| Operating Temperature | -40C to +85C (industrial, -I suffix) |
| Package | 14-pin SOIC (SL), 150-mil |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-free | Yes |
PIC16F1454-I/SL Pin Configuration
| Pin 1 | VSS β Ground reference |
| Pin 2 | RA5 β Digital I/O / analog input / IOC |
| Pin 3 | RA4 β Digital I/O / analog input / IOC |
| Pin 4 | RA3/MCLR β Digital I/O / Master Clear (reset) input |
| Pin 5 | RC5 β Digital I/O / PWM / IOC |
| Pin 6 | RC4 β Digital I/O / PWM / IOC |
| Pin 7 | RC3 β Digital I/O / analog input |
| Pin 8 | RC2 β Digital I/O / analog input |
| Pin 9 | RC1 β Digital I/O / analog input |
| Pin 10 | RC0 β Digital I/O / analog input |
| Pin 11 | RA1/ICSPCLK β Digital I/O / analog input / ICSP clock |
| Pin 12 | RA0/ICSPDAT β Digital I/O / analog input / ICSP data |
| Pin 13 | VUSB3V3 β Internal USB 3.3V regulator output (bypass required) |
| Pin 14 | VDD β Positive supply voltage (2.5V to 5.5V) |
Typical Applications
PIC16F1454-I/SL is suitable for 7 applications: USB HID Peripheral Devices, USB-to-UART Bridge Dongle, Low-Cost Consumer Electronics, Industrial Sensor Nodes, IoT Edge Device Controller, Educational and Prototyping Platforms, Automotive Interior Accessories.
USB HID Peripheral Devices
The PIC16F1454-I/SL is a natural fit for USB HID-class peripherals such as custom keyboards, mice, game controllers, and consumer-grade input devices. Its integrated USB 2.0 full-speed transceiver with host clock recovery removes the need for an external 48 MHz crystal, while 14 KB Flash and 1 KB RAM are sufficient for HID report descriptors, button matrix scanning, and small application firmware. Typical designs route D+/D- with 90-ohm differential impedance to a USB-C or USB-B connector and power the VUSB rail from VBUS through the internal 3.3V regulator, achieving enumeration on most hosts without external components beyond the mandatory 0.1uF decoupling caps.
Recommended
USB-to-UART Bridge Dongle
The PIC16F1454-I/SL serves as a compact USB-to-UART bridge for debugging legacy serial devices or connecting microcontrollers to a PC. The integrated USB 2.0 FS module and EUSART peripheral handle the protocol conversion in firmware, while the 48 MHz HFINTOSC supports 12 Mbps USB and standard baud rates up to 921600 bps with low timing error. Drawing only a few milliamps from VBUS, the part enables cable-attached debug tools that fit in the USB connector footprint itself. The 14-pin SOIC is small enough to integrate the MCU directly on the PCB inside a USB-A plug shell.
Recommended
Low-Cost Consumer Electronics
Consumer products such as remote controls, small appliances, and sensor-equipped toys benefit from the PIC16F1454-I/SL's combination of integrated USB, XLP extreme-low-power modes, and 14-pin SOIC footprint. Sleep currents in the nanoampere range extend battery life when the device is idle between user interactions, and the on-chip USB allows simple firmware updates or charging telemetry over a standard micro-USB cable without adding a separate USB controller. The 2.5V-5.5V supply range lets the same board design work from a CR2032 coin cell, two AA batteries, or a USB VBUS rail.
Recommended
Industrial Sensor Nodes
Industrial sensor nodes using the PIC16F1454-I/SL can leverage its 10-bit ADC, MI2C/SPI peripherals, and industrial -40C to +85C temperature range for compact, USB-tethered monitoring modules. Engineers connect temperature, pressure, or gas sensors over MI2C, sample with the 10-bit ADC, and stream logged data over USB to a host PC for analysis. The PIC XLP deep-sleep mode (<100 nA typical) suits battery-backed installations where the sensor only wakes on a threshold event. The integrated 48 MHz HFINTOSC tolerates factory vibration and thermal cycling better than external crystal references.
Recommended
IoT Edge Device Controller
For IoT edge devices, the PIC16F1454-I/SL provides USB connectivity for commissioning, firmware updates, and local data exchange with a host gateway, while running user-application logic on a low-power 8-bit core. Engineers can integrate MI2C sensors for environmental monitoring and use the CLC (Configurable Logic Cell) for hardware-level signal conditioning without CPU overhead. The 14-pin SOIC footprint fits on sub-1-square-inch modules designed for retrofit deployment behind light switches or inside junction boxes, with USB-C exposing a standard diagnostics and update port.
Recommended
Educational and Prototyping Platforms
The PIC16F1454-I/SL is widely used in university embedded courses and hobbyist projects because the same 14-pin SOIC and 14-pin PDIP variants enable breadboard-friendly prototyping without sacrificing USB functionality. Students learn USB enumeration, ADC sampling, and PWM generation on a single chip without needing separate USB controller ICs. The MPLAB X IDE and XC8 compiler are free, and the PICkit programmer ecosystem supports both SOIC and PDIP packages, allowing a smooth transition from breadboard to final SMT design using the same firmware and pinout.
Recommended
Automotive Interior Accessories
The PIC16F1454-I/SL is suitable for non-safety automotive interior accessories such as USB-charging status indicators, mood lighting controllers, and cabin sensor interfaces that need a USB diagnostic port. Its integrated USB 2.0 FS module allows the accessory to be plugged into the vehicle infotainment USB port for configuration without additional interface ICs. The EUSART and MI2C peripherals interface with body-domain sensors and actuators, while the 4 x 10-bit PWM channels drive LED dimming. Although this part is not AEC-Q100 qualified, the -40C to +85C industrial rating covers cabin environments.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1454-I/SL β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1455-I/SL | PIC16F1459-I/SL | PIC16F1454-I/P | PIC16F1454-E/SL |
|---|---|---|---|---|---|
| Package | 14-pin SOIC (SL) | 14-pin SOIC (SL) - same | 14-pin SOIC (SL) - same | 14-pin PDIP (P) - through-hole | 14-pin SOIC (SL) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| USB Module | USB 2.0 FS with clock recovery | USB 2.0 FS with clock recovery | USB 2.0 FS with clock recovery | USB 2.0 FS with clock recovery | USB 2.0 FS with clock recovery |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C |
Key Differentiators
- Integrated USB 2.0 FS with host clock recovery (vs PIC16F1455-I/SL)
- Lower unit cost in standard SOIC-14 package (vs PIC16F1454-I/ML)
- Extended-temperature variant available in same SOIC-14 footprint (vs PIC16F1454-E/SL)
Design Notes
Route the USB D+ and D- lines as a 90-ohm differential pair with continuous reference plane on the layer below. Place the 0.1uF VDD decoupling capacitor within 3 mm of the VDD pin and add a 10uF bulk capacitor nearby. The VUSB3V3 pin (pin 13) requires a 0.47uF to 1uF ceramic bypass capacitor close to the pin. Keep noisy switching traces (PWM, digital outputs) away from the USB differential pair to meet USB 2.0 FS radiated-emissions requirements.
The PIC16F1454-I/SL integrates a 3.3V LDO regulator on the VUSB3V3 pin to power the internal USB transceiver. Tie VUSB3V3 to VDD when VDD is in the 3.0V-3.6V range, or use it as a 3.3V source for an external pull-up on the D- line when VDD is higher. Decouple VUSB3V3 with at least 0.47uF of low-ESR ceramic capacitance. For bus-powered designs, VBUS supplies the PIC through a regulator; for self-powered designs, ensure VDD remains above 2.5V before USB attach.
Do not omit the 10k pull-up on MCLR/RA3 unless using internal MCLR (CONFIG MCLRE = OFF). Always populate a 0.1uF decoupling cap on VDD and VUSB3V3. When enabling USB clock recovery, set the appropriate CONFIG bits (USBLSCLK = 48MHz) and avoid toggling HFINTOSC tuning registers during USB transactions. The ICSPDAT/ICSPCLK pins are shared with RA0/RA1 and must be isolated from application circuitry during in-circuit programming to avoid contention.
Compliance Information
RoHS and REACH compliance per Microchip environmental information. Not AEC-Q100 qualified - this part is industrial grade. Lead-free matte-tin plating. Halogen-free status not explicitly stated on Microchip's public product page.
