PIC16F1454T-I/SL - 8-bit USB MCU, 14KB Flash, 48MHz | Microchip
MPN: PIC16F1454T-I/SL β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.73 | $1.73 |
| 10 | $1.55 | $15.50 |
| 100 | $1.31 | $131.00 |
| 500 | $1.1 | $550.00 |
| 1,000 | $0.96 | $960.00 |
| 2,600 | $0.85 | $2,210.00 |
PIC16F1454T-I/SL Overview
An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, program memory (Flash), data memory (RAM), and peripherals such as timers, ADC, and communication interfaces on a single die. Within the broader semiconductor taxonomy, an MCU sits under microcontrollers -> embedded processors -> integrated circuits. The PIC16F145x family belongs to Microchip's enhanced mid-range (XLP) 8-bit architecture, which adds C compiler-friendly optimizations, nanoWatt XLP sleep technology, and a 14-bit instruction word for code density.
The PIC16F1454T-I/SL provides 12 I/O pins, a 10-bit ADC with up to 9 channels, two 8-bit timers plus one 16-bit timer, an Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART), and an integrated USB 2.0 full-speed transceiver that eliminates the need for an external crystal on the USB bus. Its nanoWatt XLP technology delivers sleep currents in the microamp range, enabling battery-friendly designs.
The device is built on Microchip's enhanced mid-range PIC16 core, which executes most instructions in one oscillator cycle (approximately 83 ns at 48MHz). Internal PLL multiplies the 16MHz HFINTOSC to 48MHz, so designs can run at full speed without external clock components except for the USB 48MHz reference.
Typical applications include USB human-interface devices (HID) such as keyboards, mice, and game controllers, USB-to-UART bridge dongles, low-cost USB sensor nodes, capacitive-touch user interfaces, and small embedded controllers in consumer appliances. The 14-pin SOIC footprint is friendly for hand-soldered prototypes and low-density production runs.
When designing with this part, allocate the 48MHz USB clock through the dedicated USB clock domain rather than the system clock to avoid jitter, and follow USB-IF impedance recommendations on the D+/D- traces. Because the device includes on-chip pull-ups, fewer external components are required for low-speed USB, but a precision external resistor on VUSB may be needed for full-speed operation per the device datasheet.
This page synthesizes distributor pricing, drop-in package alternatives, and practical design notes that go beyond what the manufacturer datasheet alone provides, helping procurement and embedded engineers compare options in one place.
Drop-in alternatives for PIC16F1454T-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 PIC16F1454T-I/SL (same form factor and footprint) β differing in Operating Temperature, Package, Core Architecture, Communication Interfaces, Instruction Cycle Time.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16F1454-I/SL
β Drop-Inβ In Stock
$1.15 / Unit
View Datasheet βPIC16F1454-E/SL
β Drop-Inβ In Stock
$0.95 / Unit
View Datasheet βPIC16F1454T-E/SL
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1454-I/P
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1454T-I/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 enhanced mid-range (8-bit, 14-bit instruction word) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data RAM | 1024 bytes |
| Maximum CPU Frequency | 48 MHz |
| Instruction Cycle Time | 83 ns at 48 MHz (1 Tcy per instruction) |
| I/O Pins | 12 |
| ADC | 10-bit, up to 9 channels |
| Timers | 2 x 8-bit, 1 x 16-bit |
| USB | USB 2.0 Full-Speed (12 Mbps) integrated transceiver |
| Communication Interfaces | EUSART, I2C, SPI, USB |
| Operating Voltage (VDD) | 2.3 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (Industrial, "I" grade) |
| Package | 14-pin SOIC (SL), 0.154" (3.90 mm) body width |
| Mounting Type | Surface Mount |
| MSL Level | 1 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
| Lead-Free / Halogen-Free | Lead-free; Halogen-free status not explicitly stated in web data |
PIC16F1454T-I/SL Pin Configuration
| Pin 1 | RA3/AN3/CPS3/VREF+/T1G β Bidirectional I/O with analog input, CPS touch, VREF+, timer1 gate |
| Pin 2 | RA4/AN4/CPS4/T1OSI β Bidirectional I/O, analog input, CPS touch, Timer1 oscillator input |
| Pin 3 | RA5/MCLR/VPP β Bidirectional I/O, Master Clear (reset) input, programming voltage |
| Pin 4 | VSS β Ground reference |
| Pin 5 | VDD β Positive supply voltage (2.3 V to 5.5 V) |
| Pin 6 | RC0/SOSC/SCLKI β Bidirectional I/O, secondary oscillator, secondary clock input |
| Pin 7 | RC1/SOSCO β Bidirectional I/O, secondary oscillator output |
| Pin 8 | RC2/CCP1 β Bidirectional I/O, Capture/Compare/PWM 1 output |
| Pin 9 | RC3/CCP2 β Bidirectional I/O, Capture/Compare/PWM 2 output |
| Pin 10 | RC4/D-/D- β Bidirectional I/O, USB D- line (alternate function) |
| Pin 11 | RC5/D+/D+ β Bidirectional I/O, USB D+ line (alternate function) |
| Pin 12 | RA0/AN0/CPS0 β Bidirectional I/O with analog input and CPS touch |
| Pin 13 | RA1/AN1/CPS1 β Bidirectional I/O with analog input and CPS touch |
| Pin 14 | RA2/AN2/CPS2 β Bidirectional I/O with analog input and CPS touch |
Typical Applications
PIC16F1454T-I/SL is suitable for 7 applications: USB Human Interface Device (HID), USB-to-UART Bridge Dongle, Capacitive Touch User Interface, Low-Cost USB Sensor Node, USB LED Lighting Controller, Battery-Powered Wearable Data Logger, Educational USB Development Platform.
USB Human Interface Device (HID)
The PIC16F1454T-I/SL is engineered for compact USB HID-class devices such as keyboards, mice, remote controls, and game controllers. Its integrated USB 2.0 full-speed transceiver and SIE eliminate the need for an external USB PHY, shrinking the BOM to a single MCU plus connectors. With 14KB Flash and 1KB RAM, it can run Microchip's USB HID stack with the MSSP-based I2C/SPI for sensor reads, while the 12 I/O pins scan a typical 8x16 keyboard matrix. nanoWatt XLP sleep modes drop quiescent current to the microamp range, preserving battery life in wireless HID dongles. Compared to ATmega + external USB designs, this PIC saves approximately $0.30-$0.50 BOM cost per unit at low volumes.
Recommended
USB-to-UART Bridge Dongle
A common use for the PIC16F1454T-I/SL is a USB-to-UART bridge (CDC class) that adds a serial COM port to a legacy microcontroller host. The EUSART provides TX/RX at standard baud rates up to 115.2 kbps and higher, while the integrated USB handles enumeration and CDC ACM signalling without external crystals. The 14-pin SOIC fits inside USB Type-A dongle enclosures, and the 2.3V-5.5V VDD range allows direct bus-powered 5V operation. Engineers benefit from Microchip's free USB CDC library in MPLAB Code Configurator (MCC), which generates descriptor tables and HID/CDC stacks in minutes.
Recommended
Capacitive Touch User Interface
The PIC16F1454T-I/SL supports Microchip's mTouch capacitive-touch sensing via the CPS module, enabling touch buttons, sliders, and proximity sensors on the 12 available I/O pins. With 14KB Flash, designers can implement up to 12 capacitive channels plus USB diagnostics output for tuning. The 10-bit ADC and integrated op-amp support additional analog sensing for lighting or temperature compensation in touch panels. XLP sleep modes drop to under 1 uA between touch events, making this MCU attractive for battery-powered remote controls and wall switches.
Recommended
Low-Cost USB Sensor Node
Industrial and consumer sensor nodes often need USB connectivity for configuration, log download, or local display readout. The PIC16F1454T-I/SL integrates USB plus a 10-bit ADC (9 channels) and EUSART/I2C/SPI, so a single chip can read sensors and stream data over USB CDC or vendor class. The 48MHz core runs modest DSP for signal conditioning, while 1KB RAM accommodates FIFO buffers for short log bursts. With industrial -40C to +85C temperature rating and 14-pin SOIC for harsh-environment boards, it suits factory-floor or outdoor sensor enclosures.
Recommended
USB LED Lighting Controller
The PIC16F1454T-I/SL can host USB-controlled LED strips, RGB fixtures, and DMX-style lighting desks. Its PWM outputs (via CCP/ECCP modules) drive MOSFET gate drivers for RGBW channels, while USB CDC commands set color, brightness, and animation. The 48MHz core and 1KB RAM support basic chase/fade patterns without external memory, and the 14-SOIC fits behind wall plates. Compared to WS2811 string controllers, this design offers bidirectional USB feedback for status and diagnostics, valuable in architectural and stage lighting.
Recommended
Battery-Powered Wearable Data Logger
Wearable health and activity loggers benefit from the PIC16F1454T-I/SL's nanoWatt XLP technology, which delivers sleep currents in the microamp range for multi-week battery life. The integrated USB allows periodic charging and data offload via standard cables, removing the need for proprietary cradles. With 14KB Flash for data compression/encryption and 1KB RAM for sample buffering, the MCU can record from I2C sensors (accelerometers, optical heart-rate) and periodically transmit over USB. The 14-SOIC supports miniaturized PCB layouts with the chip measuring only 3.90 mm wide.
Recommended
Educational USB Development Platform
The PIC16F1454T-I/SL is widely adopted in Microchip's Curiosity development boards and academic USB courses because it offers a full-speed USB port at a low price point in a hobbyist-friendly 14-SOIC. Students can program via PICkit 4 or Snap, experiment with USB enumeration, and graduate to larger PIC18/PIC32 devices using the same MPLAB X IDE. With 14KB Flash, the chip can host small RTOS demonstrations, USB CDC echo firmware, and bootloader experiments, making it a frequent teaching example for USB protocol education.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1454T-I/SL β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1454-I/SL | PIC16F1454-E/SL | PIC16F1454T-E/SL | PIC16F1454-I/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-pin SOIC (SL) | 14-pin SOIC (SL) - same | 14-pin SOIC (SL) - same | 14-pin SOIC (SL) - same | 14-pin PDIP (P) - through-hole variant |
| Program Memory (Flash) | 14 KB | 14 KB | 14 KB | 14 KB | 14 KB |
| Data RAM | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes |
| Maximum CPU Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| I/O Pins | 12 | 12 | 12 | 12 | 12 |
| Integrated USB | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed |
| Operating Temperature Range | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) |
| Packaging Format | Tape & Reel | Tube | Tube | Tape & Reel | Tube |
| RoHS / Lead-Free | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes |
Key Differentiators
- Smallest 14-pin SOIC Microchip MCU with integrated USB 2.0 full-speed transceiver (vs PIC16F1454-I/P)
- Higher temperature ceiling variant available in same package (vs PIC16F1454T-E/SL)
- Industrial temperature rating for harsh environments (vs PIC16F1454-I/SL)
Design Notes
The PIC16F1454T-I/SL supports a wide VDD range of 2.3 V to 5.5 V; however, the internal USB transceiver requires a clean 3.0 V to 3.6 V on the VUSB3V3 pin. For 5 V bus-powered designs, add a low-dropout regulator such as MCP1700 or use the internal 3.3V regulator with sufficient output capacitance. For self-powered designs, you may supply VUSB3V3 from VDD directly if VDD is within the 3.0-3.6 V window. Always consult the Microchip PIC16F1454 datasheet section on USB power for the recommended decoupling and ferrite bead topology.
USB D+ and D- traces must be routed as a 90 ohm differential pair with matched length (delta under 150 mils) per USB 2.0 spec. Place the 15 kohm pull-down resistors on D+ and D- as close to the MCU pins as possible. For full-speed (12 Mbps) operation, the device needs a precise 48 MHz clock from the HFINTOSC with the PLL engaged; if the USB bus recovers after significant VDD droop, issue a USB Reset to the SIE. Keep the D+/D- traces away from switching DC-DC converters to avoid radiated EMI coupling.
Common pitfalls when designing with the PIC16F1454T-I/SL include: (1) forgetting that RA3 doubles as VREF+ when ADC voltage reference is enabled, which disables digital I/O on that pin; (2) leaving the MCLR pin floating in non-reset mode (must be tied high through a 10 kohm resistor or driven low externally); (3) exceeding the 5.5V absolute maximum on any pin - the MCU lacks 5V-tolerant I/O on most pins; (4) failing to disable the JTAG pins (not applicable here but a common PIC18 trap); (5) over-driving the CCP/PWM outputs beyond the 25 mA source/sink rating.
For the 14-pin SOIC (SL) footprint, follow Microchip's recommended land pattern in the package datasheet, including 0.04 inch pad width and 0.06 inch pad length with 0.20 inch pitch. Place the 0.1 uF VDD decoupling capacitor within 0.1 inch of pin 5 (VDD), and add a bulk 10 uF tantalum or ceramic capacitor near the regulator output. Keep analog traces (AN0-AN4) short and away from the USB differential pair to prevent digital switching noise coupling into ADC readings. Solder paste stencil thickness of 5-6 mil works well for the 0.154 inch SOIC pads.
Compliance Information
RoHS compliant and lead-free per Microchip product page. AEC-Q100 not qualified; the PIC16F1454 family is not listed as automotive-grade. Halogen-free status not explicitly stated in the verified web data - listed as 'unknown' per Data Authenticity Rules.
