PIC18F4553T-I/PT - 8-Bit 48MHz USB MCU, 32KB Flash | Microchip
Référence : PIC18F4553T-I/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $6.85 | $6,85 |
| 10 | $6.15 | $61,50 |
| 100 | $5.45 | $545,00 |
| 500 | $4.95 | $2 475,00 |
| 1 000 | $4.5 | $4 500,00 |
PIC18F4553T-I/PT Présentation
A microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and configurable peripherals. The PIC18 family is Microchip's enhanced 8-bit Harvard-architecture line, positioned in the broader taxonomy as: PIC18F -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. Within that hierarchy, the PIC18F4553 specifically targets USB-connected embedded designs that also need accurate analog measurements.
Key features include nanoWatt power management with multiple idle and sleep modes, a 12-bit ADC with up to 13 input channels, a 10-bit PWM module, two analog comparators, a programmable 31 kHz to 8 MHz internal oscillator, and a hardware USB transceiver compliant with USB 2.0 Full-Speed (12 Mbit/s). The 44-pin TQFP package exposes 35 digital I/O lines plus the USB D+/D- pins, and the 'T' suffix indicates Tape & Reel packaging.
Typical applications include USB HID peripherals (custom input devices, sensor bridges to PC), industrial data loggers with precision analog front-end, USB-to-UART/I2C/SPI bridges, low-power connected sensor nodes using nanoWatt modes, and educational/prototyping boards where PIC18 + USB simplifies firmware development.
When designing with this part, reserve at least one I/O pin for the MCLR reset (or use the internal MCLR disable configuration), add proper USB bus termination (per USB 2.0 spec), and provide adequate decoupling. Use MPLAB X IDE with the XC8 compiler for firmware development; an integrated USB stack is available in the Microchip Libraries for Applications (MLA).
Alternatives de remplacement direct pour PIC18F4553T-I/PT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC18F4553T-I/PT (même facteur de forme et même empreinte) — différant par ADC, Timers, Operating Temperature, Package, Program Memory (Flash).
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18F4550-I/PT
✅ Remplacement direct✓ En stock
$4.95 / unité
Voir la fiche technique →PIC18F45K50-I/PT
✅ Remplacement direct✓ En stock
$2.74 / unité
Voir la fiche technique →PIC18F4553-I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F4553T-I/ML
✓ En stock
$4.65 / unité
Voir la fiche technique →PIC18F4455-I/PT
✅ Remplacement direct✓ En stock
$4.85 / unité
Voir la fiche technique →PIC18F4480-I/PT
✅ Remplacement direct✓ En stock
$4.85 / unité
Voir la fiche technique →PIC18F14K50-I/P
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F4553T-I/PT Valeurs maximales et caractéristiques électriques
| Core | PIC18 8-bit RISC |
| Instruction Set | PIC18 (C-optimized, 16-bit instructions) |
| Maximum CPU Frequency | 48 MHz (12 MIPS) |
| Program Memory (Flash) | 32 KB (16K x 16 words) |
| Data RAM | 2 KB |
| Data EEPROM | 256 bytes |
| USB Peripheral | USB 2.0 Full-Speed (12 Mbit/s), device/host (limited) |
| ADC | 10/12-bit, up to 13 input channels |
| Digital I/O Pins | 35 (max) |
| Timers | 4 (Timer0/1/2/3) |
| Capture/Compare/PWM | 1 CCP + 1 ECCP (10-bit PWM) |
| Serial Interfaces | USB, I2C, SPI, USART (EUSART) |
| Operating Voltage | 4.2 V to 5.5 V (USB enabled); 2.0 V to 5.5 V (no USB) |
| Température de fonctionnement | -40C to +85C (Industrial) |
| Boîtier | 44-pin TQFP (PT), 10x10 mm |
| Type de montage | Surface Mount |
| Programming/Debug | ICSP (In-Circuit Serial Programming) via PGC/PGD |
| Power-Saving Modes | nanoWatt (Idle, Sleep, Deep Sleep, RC_RUN) |
Configuration des broches de PIC18F4553T-I/PT
| Broche 1 | MCLR/RE3 — Master Clear (reset) input or digital input RE3 |
| Broche 2 | RA0/AN0 — PORTA bit 0 / ADC input channel 0 |
| Broche 3 | RA1/AN1 — PORTA bit 1 / ADC input channel 1 |
| Broche 4 | RA2/AN2/VREF- — PORTA bit 2 / ADC input channel 2 / ADC negative reference |
| Broche 5 | RA3/AN3/VREF+ — PORTA bit 3 / ADC input channel 3 / ADC positive reference |
| Broche 6 | RA4/T0CKI/RCV — PORTA bit 4 / Timer0 clock input / PWM ECCP Fault input |
| Broche 7 | RA5/AN4/SS1 — PORTA bit 5 / ADC input channel 4 / SPI1 slave select |
| Broche 8 | RE0/RD — PORTE bit 0 / Parallel Port read control |
| Broche 9 | RE1/WR — PORTE bit 1 / Parallel Port write control |
| Broche 10 | RE2/CS — PORTE bit 2 / Parallel Port chip select |
| Broche 11 | VDD — Digital supply voltage (2.0-5.5V; 4.2-5.5V with USB) |
| Broche 12 | VSS — Digital ground |
| Broche 13 | OSC1/CLKI — Crystal oscillator input / external clock input |
| Broche 14 | OSC2/CLKO/RA6 — Crystal oscillator output / clock output / PORTA bit 6 |
| Broche 15 | D-/RC4 — USB D- data line / PORTC bit 4 |
| Broche 16 | D+/RC5 — USB D+ data line / PORTC bit 5 |
| Broche 17 | RC6/TX1/CK1 — EUSART1 transmit / clock / PORTC bit 6 |
| Broche 18 | RC7/RX1/DT1 — EUSART1 receive / data / PORTC bit 7 |
| Broche 19 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port data 0 |
| Broche 20 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port data 1 |
| Broche 21 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port data 2 |
| Broche 22 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port data 3 |
| Broche 23 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator out / clock in |
| Broche 24 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / CCP2 I/O |
| Broche 25 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| Broche 26 | RC3/SCK1/SCL1 — PORTC bit 3 / SPI1 clock / I2C1 clock |
| Broche 27 | RB0/AN12/INT0 — PORTB bit 0 / ADC channel 12 / External interrupt 0 |
| Broche 28 | RB1/AN10/INT1 — PORTB bit 1 / ADC channel 10 / External interrupt 1 |
| Broche 29 | RB2/AN8/INT2 — PORTB bit 2 / ADC channel 8 / External interrupt 2 |
| Broche 30 | RB3/AN9/CCP2 — PORTB bit 3 / ADC channel 9 / CCP2 output |
| Broche 31 | AVSS — Analog ground |
| Broche 32 | AVDD — Analog supply voltage (must equal VDD) |
| Broche 33 | RB4/AN11 — PORTB bit 4 / ADC channel 11 |
| Broche 34 | RB5/AN13 — PORTB bit 5 / ADC channel 13 |
| Broche 35 | RB6/ICSPCLK — PORTB bit 6 / In-Circuit Serial Programming clock |
| Broche 36 | RB7/ICSPDAT — PORTB bit 7 / In-Circuit Serial Programming data |
| Broche 37 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port data 4 |
| Broche 38 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port data 5 |
| Broche 39 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port data 6 |
| Broche 40 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port data 7 |
| Broche 41 | VUSB — USB internal transceiver supply (3.3V regulated; needs decoupling) |
| Broche 42 | VSS — Digital ground |
| Broche 43 | VDD — Digital supply voltage (2.0-5.5V; 4.2-5.5V with USB) |
| Broche 44 | NC — Not connected (no internal bond; leave open or route as needed) |
Applications typiques
PIC18F4553T-I/PT convient pour 6 applications: USB HID Peripherals (Custom Input Devices), Industrial Data Loggers with Precision Analog, USB-to-Serial Protocol Bridges (UART/I2C/SPI), Low-Power Connected Sensor Nodes, Educational Development Boards and Prototypes, USB Audio Class 1 Device Headsets and Headphones.
USB HID Peripherals (Custom Input Devices)
The PIC18F4553T-I/PT excels in USB Human Interface Device (HID) applications thanks to its integrated USB 2.0 Full-Speed transceiver operating at 12 Mbit/s and a 48MHz core delivering 12 MIPS. Place the device between a button/sensor matrix and the USB bus; the on-chip USB engine handles framing, leaving firmware free to scan inputs. The 32KB Flash easily accommodates HID report descriptors plus custom application logic. The 12-bit ADC with up to 13 input channels adds analog potentiometer or joystick support without an external ADC. Operating at 4.2-5.5V from a USB-powered regulator simplifies bus-powered designs.
Recommandé
Industrial Data Loggers with Precision Analog
The PIC18F4553T-I/PT is well suited to industrial data loggers because its 12-bit ADC and nanoWatt modes let the device sleep between samples, capturing sensor data and uploading it over USB for analysis. Use the 32KB Flash to buffer entries and the 256-byte EEPROM for configuration retention. Sample 4-20mA or 0-10V sensor signals with external dividers and run the readings through the on-chip ADC. The 48MHz core and 2KB of RAM support modest preprocessing and compression before USB transmission, while the industrial -40C to +85C operating range handles factory environments.
Recommandé
USB-to-Serial Protocol Bridges (UART/I2C/SPI)
The PIC18F4553T-I/PT is a common choice for USB to UART, I2C, or SPI bridges used to bring legacy peripherals onto a PC. Its USB Full-Speed endpoint engine plus EUSART and MSSP (I2C/SPI) peripherals on the same die mean one chip replaces a separate USB bridge IC and host MCU. 32KB Flash holds CDC USB stack plus custom protocol glue; the 12-bit ADC is a free bonus when the downstream device exposes analog signals. Use 4.2-5.5V from the USB bus and the internal phase-locked-loop oscillator to drop the BOM to two ceramic caps.
Recommandé
Low-Power Connected Sensor Nodes
The PIC18F4553T-I/PT serves low-power sensor nodes that need USB on-demand attachment for service or data offload, leveraging its nanoWatt technology: Idle, Sleep, Deep Sleep, and RC_RUN modes trim current draw between sensor reads. The 32KB Flash fits an RTOS-lite scheduler or a state machine, while 2KB RAM holds sample buffers. Wake on interrupt, gather data, then drop back into deep sleep; the USB peripheral stays quiescent until the user plugs in a service cable. Industrial -40 to +85C temperature supports outdoor and factory deployments.
Recommandé
Educational Development Boards and Prototypes
The PIC18F4553T-I/PT is widely used in teaching labs because its TQFP-44 footprint, breadboard-friendly adaptor boards, USB HID class, and MPLAB X IDE/XC8 support make the entire toolchain accessible to students. 32KB Flash supports serial bootloaders and example USB stacks from the Microchip Libraries for Applications. The 12-bit ADC accommodates analog sensor labs, while PWM, I2C, and SPI peripherals cover motor and bus experiments on one chip. The 'I' industrial temperature grade tolerates student-bench abuse and 5V supply noise.
Recommandé
USB Audio Class 1 Device Headsets and Headphones
The PIC18F4553T-I/PT can drive USB Audio Class 1 (1.0/Mbit Full-Speed) headsets using its integrated USB peripheral, EUSART, and a PWM-driven Class-D amplifier path or external CODEC hand-off. The 12-bit ADC enables microphone input for headsets, while 2KB RAM supports small sample buffers; larger buffers are typically held in an external SPI RAM. The 4.2-5.5V supply comes from the USB VBUS line, eliminating batteries. Industrial -40 to +85C supports ruggedized USB headsets. Use external CODECs (e.g., 16-bit DAC) when higher fidelity is required.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18F4553T-I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC18F4550-I/PT | PIC18F45K50-I/PT | PIC18F4455-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (PT), 10x10 mm | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same |
| Flash Program Memory | 32 KB | 32 KB | 32 KB | 24 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB |
| ADC Resolution | 12-bit (up to 13 channels) | 10-bit (up to 13 channels) | 10/12-bit (up to 14 channels) | 10-bit |
| USB Peripheral | USB 2.0 Full-Speed (12 Mbit/s) | USB 2.0 Full-Speed (12 Mbit/s) | USB 2.0 Full-Speed (12 Mbit/s) | USB 2.0 Full-Speed (12 Mbit/s) |
| Maximum CPU Frequency | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) |
| nanoWatt Power-Saving | Yes (Idle/Sleep/Deep Sleep/RC_RUN) | Yes (Idle/Sleep/RC_RUN) | Yes + XLP ultra-low-power | Yes (Idle/Sleep) |
| Operating Voltage (USB) | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 2.0 V to 5.5 V | 4.2 V to 5.5 V |
| Unit Price (qty 1, as of 2026-09-27) | $6.85 | ~$6.40 | ~$7.10 | ~$6.20 |
Principaux différenciateurs
- Higher-resolution 12-bit ADC over PIC18F4550 (vs PIC18F4550-I/PT)
- nanoWatt power-saving with USB integration (vs PIC18F45K50-I/PT)
- Higher memory headroom vs PIC18F4455 (vs PIC18F4455-I/PT)
Notes de conception
Use a stable 4.2-5.5V rail for USB operation. Add 100nF decoupling within 5mm of each VDD/VSS pin pair, plus a bulk 10uF tantalum or ceramic near the VUSB pin (pin 41) and a separate 470nF on VUSB to ensure USB transceiver supply is clean. According to the Microchip PIC18F4553 datasheet, VUSB has its own internal 3.3V regulator that requires external decoupling; bypassing is mandatory for USB Full-Speed compliance.
Route the 12 MHz crystal traces (OSC1/OSC2) short, symmetric, and guarded by GND to minimize jitter. Place the crystal, its load capacitors, and any series resistor within 7mm of pins 13/14. Keep D+/D- traces matched within 2mm and routed as 90 ohm differential (per USB 2.0 spec). Avoid routing high-speed digital lines parallel to the D+/D- pair, and provide a continuous ground reference below the USB section.
Estimated: at 48 MHz (HS oscillator), typical I_DD can reach 25-40 mA while USB active; ensure the VBUS regulator on the upstream USB connector can supply this plus USB inrush. Also confirm that the MCLR pin (1) is pulled high through 10 kohm (not left floating) so spurious resets are avoided, and disable the internal MCLR via configuration bits only after a reliable external reset strategy is in place. Source: PIC18F4553 datasheet electrical characteristics and configuration bits sections.
Program the CONFIG1L register to select the appropriate oscillator mode (HS for >4 MHz crystal, INTIO for internal 8 MHz with PLL). According to the Microchip PIC18F4553 datasheet, selecting HS-PLL enables 48 MHz operation with a 4 MHz external crystal. Enable the fail-safe clock monitor (FCMEN) and the internal/secondary oscillator (IESO) to gracefully recover from crystal faults; required for many USB stack implementations.
Informations de conformité
RoHS compliance per Microchip product page (PIC18F4553 family). This is an industrial-grade -40 to +85C part, not AEC-Q100 automotive grade. For automotive USB, use the PIC18F4553-I/PT extended-temperature variant or a Q100-qualified K-series replacement.