PIC16F1455-I/SL - 8-Bit 48MHz MCU 14KB Flash USB | Microchip
MPN: PIC16F1455-I/SL β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.4 | $2.40 |
| 10 | $2.16 | $21.60 |
| 100 | $1.95 | $195.00 |
| 500 | $1.74 | $870.00 |
| 1,000 | $1.55 | $1,550.00 |
PIC16F1455-I/SL Overview
An 8-bit microcontroller (MCU) is a compact single-chip computer built around an 8-bit data bus, optimized for deterministic real-time control rather than raw throughput. Within the broader semiconductor taxonomy, this places the part as: microcontroller -> embedded processor -> integrated circuit. The PIC16F1455 is a mid-range enhanced PIC16 device, designed to bridge traditional PIC16 peripherals with modern connectivity (USB) while preserving the small footprint and easy programmability of Microchip's legacy mid-range cores.
Key differentiating features include an integrated USB 2.0 full-speed transceiver that eliminates external USB PHY circuitry, 5 channels of 10-bit ADC, a 5-bit DAC, 2 comparators, 2 PWM modules, 4 timers, a watchdog timer, and an internal 48MHz precision oscillator that removes the need for an external crystal in many designs. The device supports 2.0V to 5.5V operation, enabling direct battery and USB-powered designs.
Architecturally, the PIC16F1455 uses a 14-bit instruction word and Harvard-style program/data buses, with hardware multiplier and C compiler-friendly architecture for code density. The XLP sleep mode draws typically sub-microamp currents, suitable for always-on USB HID, sensor nodes, or mouse/keyboard peripherals. USB Suspend/Resume handling is implemented in hardware, offloading the CPU.
Typical applications include low-cost USB peripherals (HID mice/keyboards, USB-to-UART bridges, CDC virtual COM ports), consumer electronics with USB charging control, small industrial sensor interfaces, and battery-powered data loggers. Its USB integration makes it a strong fit where adding a separate USB controller chip would inflate BOM cost or PCB area.
When designing with this device, ensure that the 3.3V USB voltage reference is properly decoupled with a 1uF capacitor at VUSB3V3, and use the internal 48MHz oscillator with the PLL engaged to avoid external resonator BOM. The -I suffix denotes the industrial temperature grade; select -E for extended 125C operation.
This page consolidates distributor pricing, true drop-in SOIC-14 alternatives, and engineering design notes that the bare Microchip datasheet does not present in a single decision-ready view.
Drop-in alternatives for PIC16F1455-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 PIC16F1455-I/SL (same form factor and footprint) β differing in ADC, Package, Core, Operating Temperature, I/O Pins.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16F1455-I/P
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1454-I/SL
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1455-E/SL
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1455T-I/SL
β Drop-Inβ In Stock
$1.24 / Unit
View Datasheet βPIC18F14K50-I/SL
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1455-I/SL Maximum Ratings & Electrical Characteristics
| Family | PIC16F145x |
| Core | PIC16 8-bit RISC |
| Program Memory | 14 KB (8K x 14) Flash |
| RAM | 1 KB (1024 bytes) |
| USB Buffer RAM | 1.25 KB dual-purpose |
| EEPROM | 0 bytes (not present in this family) |
| Maximum Clock Speed | 48 MHz |
| Operating Voltage | 2.0 V to 5.5 V |
| I/O Pins | 11 |
| ADC | 5-channel 10-bit |
| DAC | 1 x 5-bit |
| Comparators | 2 |
| PWM Modules | 2 |
| Timers | 4 (8-bit and 16-bit) |
| USB | USB 2.0 Full-Speed transceiver |
| Package | 14-pin SOIC (SL) |
| Operating Temperature | -40 C to +85 C (Industrial, -I suffix) |
| Mounting Type | Surface Mount |
| MSL Level | 1 |
| RoHS Status | Compliant |
PIC16F1455-I/SL Pin Configuration
| Pin 1 | RA5/SS/VPP β Digital I/O / SPI Slave Select / ICSP programming high voltage |
| Pin 2 | RA0/D+/ICSPCLK β Digital I/O / USB D+ / ICSP clock |
| Pin 3 | RA4/AN3/T1G/OSC2/CLKOUT β Digital I/O / Analog input 3 / Timer1 gate / Oscillator output / Clock output |
| Pin 4 | RA3/MCLR/VPP β Digital I/O / Master Clear (Reset) input / ICSP programming high voltage |
| Pin 5 | RC5/RX/DT β Digital I/O / EUSART RX / Data port |
| Pin 6 | RC4/TX/CK β Digital I/O / EUSART TX / Clock |
| Pin 7 | RC3/AN7/C12IN3-/PWM4 β Digital I/O / Analog input 7 / Comparator input / PWM output |
| Pin 8 | RC2/AN6/D-/PWM2 β Digital I/O / Analog input 6 / USB D- / PWM output |
| Pin 9 | RC1/AN5/C12IN1-/PWM3 β Digital I/O / Analog input 5 / Comparator input / PWM output |
| Pin 10 | RC0/AN4/VREF+/ICSPDAT β Digital I/O / Analog input 4 / ADC voltage reference / ICSP data |
| Pin 11 | RA2/AN2/T0CKI/INT/C1OUT β Digital I/O / Analog input 2 / Timer0 clock / External interrupt / Comparator 1 output |
| Pin 12 | RA1/AN1/C12IN0-/ICSPCLK β Digital I/O / Analog input 1 / Comparator input / ICSP clock |
| Pin 13 | VUSB3V3 β Internal USB 3.3V regulator output (decouple with 1uF) |
| Pin 14 | VDD β Positive supply voltage (2.0V to 5.5V) |
Typical Applications
PIC16F1455-I/SL is suitable for 6 applications: USB HID Peripherals (Mouse/Keyboard), USB-to-UART Virtual COM Port Bridges, USB Charging Port Managers, Consumer Remote Control Receivers, Small Industrial Sensor Interfaces, Battery-Powered Data Loggers.
USB HID Peripherals (Mouse/Keyboard)
The PIC16F1455-I/SL is purpose-built for USB HID class peripherals such as computer mice, keyboards, and game controllers. Its integrated USB 2.0 full-speed transceiver eliminates the external PHY typically required, while the 1.25KB USB endpoint buffer RAM is sufficient for HID report descriptors without burdening the main 1KB SRAM. At 48MHz the 8-bit PIC16 core handles HID polling rates up to the 1000Hz gaming standard with low interrupt latency, and nanoWatt XLP sleep mode below 1uA extends battery life in wireless designs. The 11 GPIO pins connect directly to switches, encoders, and LED indicators without external glue logic.
Recommended
USB-to-UART Virtual COM Port Bridges
When bridging legacy UART devices to modern PCs that lack RS-232 ports, the PIC16F1455-I/SL with its USB 2.0 FS transceiver and USART peripheral is an ideal CDC virtual COM port controller. It implements the USB Communication Device Class (CDC) ACM profile in firmware running on the 14KB Flash core, communicating with the host at full-speed 12Mbps while presenting a serial interface at common baud rates up to 115200. Compared to dedicated bridge chips like the FT232, it costs less, is field-upgradable via Flash, and shares the same SOIC-14 footprint as many MCU-based designs.
Recommended
USB Charging Port Managers
For USB Type-A downstream-facing charging ports on hubs, monitors, and travel adapters, the PIC16F1455-I/SL serves as a low-cost controller that negotiates BC1.2 charging modes, manages power enable signals, and reports status over USB. The 5-bit DAC provides adjustable voltage thresholds for legacy Apple and Samsung charging profiles, while the 2 comparators detect attach/detach events on D+/D- lines without CPU polling. Operating from 2.0V to 5.5V it draws directly from the VBUS rail through its internal regulator. This application leverages the 14KB Flash for flexible charging policy firmware updates.
Recommended
Consumer Remote Control Receivers
Battery-powered IR/RF remote controls benefit from the PIC16F1455-I/SL's nanoWatt XLP extreme low-power sleep current under 1uA, allowing coin-cell operation for years. The 5-channel 10-bit ADC reads IR photodiode signals or analog sensor inputs, while two PWM channels drive IR LEDs or vibration motors. The integrated USB 2.0 FS peripheral enables firmware updates and configuration via USB without an external programmer. With 14KB Flash the part can host basic protocol stacks (RC5, NEC, ZigBee RF4CE command sets).
Recommended
Small Industrial Sensor Interfaces
Industrial 4-20mA loop-powered sensor transmitters and USB-attached data acquisition front-ends can use the PIC16F1455-I/SL as a compact ADC plus USB gateway. The 5-channel 10-bit ADC reads multiple analog inputs simultaneously, while the 5-bit DAC provides analog output for valve control or setpoint generation. USB 2.0 FS reports data to a host PC at 12Mbps with deterministic latency. The industrial -40C to +85C temperature range covers most factory floor installations. Compared to discrete ADC + USB bridge chips, integrating on one die reduces BOM count and PCB area.
Recommended
Battery-Powered Data Loggers
Portable data loggers for environmental monitoring, asset tracking, and field diagnostics benefit from the PIC16F1455-I/SL's combination of USB connectivity for dump-and-charge operation and XLP sleep modes for long battery life. The 5-channel 10-bit ADC digitizes temperature, humidity, and analog sensors, storing samples in the 1KB SRAM until USB connection downloads data. At 2.0V minimum operation, the part runs directly from a single Li-ion cell, with onboard USB handling both charging and data transfer. Industrial -I grade suits outdoor deployments.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1455-I/SL β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1455-I/P | PIC16F1454-I/SL | PIC16F1455-E/SL | PIC16F1455T-I/SL | PIC18F14K50-I/SL |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-pin SOIC (SL) | 14-pin PDIP (P) - same pin count, different mechanical | 14-pin SOIC (SL) - identical footprint | 14-pin SOIC (SL) - identical footprint | 14-pin SOIC (SL) - identical footprint | 14-pin SOIC (SL) - identical footprint |
| Core | PIC16 8-bit | PIC16 8-bit - same | PIC16 8-bit - same | PIC16 8-bit - same | PIC16 8-bit - same | PIC18 8-bit (16-bit instructions) |
| Program Memory | 14 KB Flash | 14 KB Flash - same | 14 KB Flash - same | 14 KB Flash - same | 14 KB Flash - same | 8 KB Flash (-43%) |
| RAM | 1 KB | 1 KB - same | 256 B (-75%) | 1 KB - same | 1 KB - same | 768 B (-25%) |
| USB 2.0 Full-Speed | Yes (integrated) | Yes - same | Yes - same | Yes - same | Yes - same | Yes - same |
| Operating Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V - same | 2.0 V to 5.5 V - same | 2.0 V to 5.5 V - same | 2.0 V to 5.5 V - same | 2.7 V to 5.5 V (higher minimum) |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C - same | -40 C to +85 C - same | -40 C to +125 C (Extended) | -40 C to +85 C - same | -40 C to +85 C - same |
| Approx. Unit Price (USD) | 2.40 | 2.45 | 2.20 | 2.55 | 2.40 | 3.10 |
Key Differentiators
- Integrated USB 2.0 full-speed transceiver eliminates external PHY (vs FT232RQ (external USB-UART bridge))
- Lowest-cost 14KB Flash USB MCU in SOIC-14 package (vs PIC18F14K50-I/SL)
- nanoWatt XLP technology for sub-1uA sleep current (vs ATmega8A-AU (Atmel/Microchip 8-bit MCU without USB))
Design Notes
Decouple VDD with a 100nF ceramic capacitor placed within 5mm of the VDD pin and a bulk 10uF electrolytic or tantalum capacitor at the board power entry point. The VUSB3V3 pin (pin 13) requires a 1uF ceramic decoupling capacitor for the internal USB 3.3V regulator per Microchip datasheet recommendations. In battery-powered designs, use the XLP sleep mode with all peripherals disabled to achieve typical standby current below 1uA.
Route the USB D+ and D- lines (RA1/RC2 in this 14-pin package) as a 90-ohm differential pair with length matching within 2mm. Place the ESD protection diode array (such as USBLC6-2SC6) close to the USB connector. Keep the VUSB3V3 decoupling capacitor directly adjacent to pin 13. Per USB 2.0 spec, the maximum total capacitance on each data line should not exceed 20pF including trace, connector, and ESD protection.
A common pitfall is failing to configure the CONFIG1 register FOSC bits to enable the internal 48MHz HFINTOSC with active PLL when USB is in use - the USB module requires a 48MHz clock and will not enumerate otherwise. Also, the MCLR/RA3 pin (pin 4) defaults to MCLR mode; if used as a GPIO, the MCLRE bit in CONFIG1 must be cleared. Per Microchip errata DS80519, early silicon revisions had USB Suspend current issues fixed in revision A7 or later - confirm revision before production.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose PIC16F1455-E/SL for extended temperature. Halogen-free status not explicitly stated in verified data.
