PIC16F1459-I/P - 8-bit USB MCU, 14KB Flash, 48MHz | Microchip
N.º da peça: PIC16F1459-I/P ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $3.38 | $3,38 |
| 10 | $3.05 | $30,50 |
| 100 | $2.71 | $271,00 |
| 500 | $2.42 | $1.210,00 |
| 1.000 | $2.16 | $2.160,00 |
PIC16F1459-I/P Visão geral
An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip that integrates a CPU, program memory (typically Flash), data RAM, and peripheral interfaces on a single die. PIC microcontrollers are Harvard-architecture RISC devices, executing one instruction per cycle (except branches) and serving a vast range of embedded applications. The PIC16F1459 belongs to the PIC16F family, sits under the broader PIC microcontroller family (PIC10/12/14/16/18/24/32), and ultimately falls within the 8-bit microcontroller product type, a category that includes competitors such as the Atmel/Microchip ATmega and 8051-derivative families.
Key features include an internal 48 MHz oscillator, an enhanced mid-range core with 49 instructions and a 16-level hardware stack, high-endurance Flash (HEF) with self read/write capability, and Microchip's eXtreme Low Power (XLP) technology for battery-friendly operation. The device also provides two standalone 10-bit PWM modules, a 10-bit ADC with up to 12 channels, multiple communication peripherals (I2C, SPI, USART/Enhanced USART), and 17 digital I/O pins on the 20-pin PDIP variant.
Technically, the PIC16F1459 uses an enhanced mid-range 8-bit RISC core, executes most instructions in a single clock cycle, and supports interrupts with automatic context saving to minimise software overhead. The USB 2.0 full-speed module integrates a transceiver and clock-recovery PLL, allowing direct connection to a USB bus without external active components. Wide operating voltage (2.0-5.5 V for the LF variant) and low sleep current (down to the nanoampere range with XLP modes) enable both line-powered and battery-powered designs.
Typical applications include USB peripherals such as HID-class input devices, CDC serial bridges, and low-cost human-interface dongles, as well as consumer-electronics control panels, sensor nodes, battery-powered wearables, and small industrial controllers. The combination of integrated USB and XLP makes the part especially attractive for retrofitting USB connectivity into legacy 5V systems.
When designing with the PIC16F1459, pay attention to supply decoupling and VUSB pin handling: a 0.1 uF ceramic decoupling capacitor must sit within a few millimetres of VDD, and the VUSB pin (if used) requires a 200 ohm source-termination resistor plus proper routing of D+/D- as a 90 ohm differential pair to maintain USB signal integrity.
This page synthesises distributor pricing, drop-in alternative analysis and practical design notes that are not available on the Microchip datasheet alone, providing engineers with a single decision-ready reference for selecting the PIC16F1459-I/P.
Alternativas drop-in para PIC16F1459-I/P — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC16F1459-I/P (mesmo formato e footprint) — diferindo em Package, ADC, Operating Temperature, I/O Pins, Data EEPROM.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16F1459-E/P
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$1.92 / unidade
Ver ficha técnica →PIC16F1459-I/SO
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$1.95 / unidade
Ver ficha técnica →PIC16F1459-I/SS
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$1.55 / unidade
Ver ficha técnica →PIC16F1459-E/SS
✅ Drop-In✓ Em estoque
$1.78 / unidade
Ver ficha técnica →PIC16F1458-I/P
✅ Drop-In✓ Em estoque
$1.55 / unidade
Ver ficha técnica →PIC16F1459-I/P Classificações máximas e características elétricas
| Core | PIC16 enhanced mid-range 8-bit RISC |
| Instruction Set Size | 49 instructions |
| CPU Speed (max) | 48 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data RAM | 1 KB |
| Data EEPROM | None (uses HEF NVM instead) |
| Non-volatile Data Storage (HEF) | 128 bytes |
| Hardware Stack Levels | 16 |
| Operating Voltage (F variant) | 2.0 V to 5.5 V |
| I/O Pins | 17 |
| USB Module | USB 2.0 Full-Speed with on-chip clock recovery |
| ADC | 10-bit, up to 12 channels |
| PWM | 2x 10-bit standalone PWM outputs |
| Communication Peripherals | I2C, SPI, EUSART |
| Timers | 3x 8-bit, 1x 16-bit |
| XLP Technology | Yes (eXtreme Low Power, sleep current in nA range) |
| Encapsulamento | 20-pin PDIP (P), through-hole |
| Operating Temperature (I grade) | -40 C to +85 C |
| Tipo de montagem | Through Hole |
| Status RoHS | Compliant |
Configuração de pinos do PIC16F1459-I/P
| Pino 1 | VDD — Positive supply voltage |
| Pino 2 | RA5 — Bidirectional I/O / SS / AN4 / C1IN0-/C2IN0- |
| Pino 3 | RA4 — Bidirectional I/O / T0CKI / AN3 / C1OUT |
| Pino 4 | RA3/MCLR — Input / Master Clear (reset, active low) |
| Pino 5 | RC5 — Bidirectional I/O |
| Pino 6 | RC4 — Bidirectional I/O |
| Pino 7 | RC3 — Bidirectional I/O / AN9 |
| Pino 8 | RC6 — Bidirectional I/O / AN8 |
| Pino 9 | RC7 — Bidirectional I/O / AN7 |
| Pino 10 | RB7 — Bidirectional I/O |
| Pino 11 | RB6 — Bidirectional I/O |
| Pino 12 | RB5 — Bidirectional I/O / AN11 |
| Pino 13 | RB4 — Bidirectional I/O / AN10 |
| Pino 14 | RC2 — Bidirectional I/O / AN6 |
| Pino 15 | RC1 — Bidirectional I/O / AN5 |
| Pino 16 | RC0 — Bidirectional I/O |
| Pino 17 | RA2 — Bidirectional I/O / AN2 |
| Pino 18 | RA1 — Bidirectional I/O / ICSPCLK / AN1 |
| Pino 19 | RA0 — Bidirectional I/O / ICSPDAT / AN0 |
| Pino 20 | VSS — Ground reference |
Aplicações típicas
PIC16F1459-I/P é adequado para 6 aplicaçãos: USB HID Input Devices, USB-to-UART Bridge (CDC), Consumer Appliance Control Panels, Battery-Powered Sensor Nodes, Industrial Operator Interface Modules, Educational and Hobbyist Development Boards.
USB HID Input Devices
The PIC16F1459-I/P's integrated USB 2.0 full-speed transceiver with on-chip clock recovery makes it an ideal choice for USB HID peripherals such as keyboards, mice, game controllers, custom input buttons and barcode scanners. The 14 KB of Flash is enough for a full HID descriptor stack plus application code for matrix-scanned key panels or quadrature decoders, while the 48 MHz CPU keeps polling loops under 100 us. The 17 I/O pins can drive both the keyboard matrix and status LEDs without a port expander. Designers benefit from the absence of an external crystal in many low-speed HID designs, cutting BOM cost by roughly USD 0.30 per board.
Recomendado
USB-to-UART Bridge (CDC)
The PIC16F1459-I/P is widely used in USB-to-UART converter dongles that emulate a COM port over USB CDC, replacing legacy bridges based on FTDI chips. With 14 KB Flash and 1 KB RAM, the firmware comfortably holds Microchip's MLA USB stack plus application glue. The 48 MHz internal oscillator drives the USB clock-recovery PLL so the device enumerates as full-speed without external crystals, and the EUSART peripheral provides standard baud rates up to 921 600. The 20-pin PDIP package also fits inside a USB-A dongle housing or a DB-9 retrofit shell.
Recomendado
Consumer Appliance Control Panels
The PIC16F1459-I/P suits front-panel controllers in white goods such as coffee makers, microwaves and washing machines where the USB port is used for diagnostics or firmware update during service. The eXtreme Low Power (XLP) technology keeps standby current in the nanoampere range, important for appliances with stringent energy-rating requirements. The 10-bit ADC reads up to 12 sensor channels for temperature, humidity and weight sensing, while two 10-bit PWM channels drive buzzers or LED backlights. The 20-pin PDIP form factor simplifies through-hole assembly for low-volume SKUs.
Recomendado
Battery-Powered Sensor Nodes
The PIC16F1459-I/P is well matched to coin-cell or 2x AA powered wireless sensor nodes thanks to XLP sleep currents measured in nanoamperes and the ability to wake on I/O change or ADC threshold. The internal 48 MHz oscillator can be parked in sleep and only the 31 kHz LF oscillator runs to maintain a real-time clock, allowing battery life of multiple years in typical duty-cycled scenarios. The integrated USB simplifies firmware updates during deployment, and the 128-byte HEF area stores calibration constants without burning Flash endurance.
Recomendado
Industrial Operator Interface Modules
The PIC16F1459-I/P fits inside industrial operator-interface panels and HMI sub-modules where USB is used for configuration upload and the MCU drives LEDs, keypads and small character displays. Its -40 C to +85 C industrial temperature rating covers most factory-floor enclosures, while the 20-pin PDIP through-hole package supports hand-soldered prototypes and field-replaceable modules. The EUSART peripheral talks to a downstream industrial MCU or PLC over RS-485 with an external transceiver. The integrated USB simplifies engineer-side commissioning via a laptop, removing the need for a separate programming header.
Recomendado
Educational and Hobbyist Development Boards
The PIC16F1459-I/P's 20-pin PDIP through-hole package is breadboard-friendly and supported by Microchip's MPLAB X IDE plus the XC8 compiler and MPLAB SNAP / PICkit programmers. With 14 KB Flash it fits small teaching projects such as USB Morse-code trainers, USB-based function generators and I/O expanders. The 17 digital I/O pins drive LEDs, buttons and character LCDs without external decoders, and the 10-bit ADC handles analog classroom experiments. Schools and makers appreciate that a single part covers USB, ADC and PWM at a sub-USD 3 price point as of 2026-09-19.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16F1459-I/P — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16F1459-E/P | PIC16F1459-I/SO | PIC16F1459-I/SS | PIC16F1459-E/SS | PIC16F1458-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin PDIP | 20-pin PDIP | 20-pin SOIC | 20-pin SSOP | 20-pin SSOP | 20-pin PDIP |
| Flash Program Memory | 14 KB | 14 KB | 14 KB | 14 KB | 14 KB | 7 KB |
| Data RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Maximum CPU Clock | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Integrated USB 2.0 Module | Yes (with clock recovery) | Yes (with clock recovery) | Yes (with clock recovery) | Yes (with clock recovery) | Yes (with clock recovery) | No |
| Temperature Grade | Industrial (-40 C to +85 C) | Extended (-40 C to +125 C) | Industrial (-40 C to +85 C) | Industrial (-40 C to +85 C) | Extended (-40 C to +125 C) | Industrial (-40 C to +85 C) |
Principais diferenciais
- Integrated USB 2.0 full-speed module with on-chip clock recovery (vs PIC16F1458-I/P)
- 14 KB Flash on the same 20-pin PDIP footprint (vs PIC16F1458-I/P)
- XLP technology with nanoampere sleep currents (vs ATMEGA8A-PU)
Notas de projeto
Place a 100 nF (0.1 uF) ceramic decoupling capacitor within 5 mm of the VDD pin (pin 1) and a bulk 10 uF aluminium-polymer or ceramic capacitor on the same rail. Add a ferrite bead or 10 ohm resistor in series with VDD if the board is powered from a noisy switching regulator to suppress conducted noise into the internal 48 MHz oscillator. The VUSB pin, when used, requires its own 200 ohm source-termination resistor in series plus a 0.1 uF decoupling capacitor; do not tie VUSB directly to VDD without the resistor or USB enumeration can fail intermittently.
Route the USB D+ (RC4) and D- (RC5) lines as a 90 ohm differential pair with matching length to within 150 mil, keep the pair on the same layer and away from switching signals such as PWM outputs or clock traces. Place the VUSB 200 ohm resistor and the 0.1 uF decoupling capacitor within 3 mm of the VUSB pin. Avoid running the D+/D- pair over power-plane splits or near crystals; route over a continuous ground plane for return-current continuity and EMC compliance.
Do not assume the PIC16F1459-I/P and PIC16LF1459-I/P are interchangeable: the LF variant is rated 1.8 V to 3.6 V and will be damaged at 5 V VDD, even though the pinout matches. Always confirm the temperature grade suffix (-I for -40 C to +85 C industrial, -E for -40 C to +125 C extended) before laying out a board for a high-temperature environment. Forgetting to configure the CONFIG words for the internal oscillator and disabling the MCLR pin can also lock the device; review the configuration bits section of the Microchip datasheet 40001639D before programming.
Informações de conformidade
Microchip states RoHS and lead-free compliance for the PIC16F1459-I/P on the product page. The -I/P industrial grade is not AEC-Q100 qualified; choose an AEC-Q100 part from the PIC16F family for automotive applications.
