PIC18F2553-I/SO - 8-bit 48MHz USB MCU 32KB Flash | Microchip
Teilenummer: PIC18F2553-I/SO ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $8.3 | $8,30 |
| 10 | $7.47 | $74,70 |
| 100 | $6.64 | $664,00 |
| 500 | $6.05 | $3.025,00 |
| 1.000 | $5.55 | $5.550,00 |
PIC18F2553-I/SO Übersicht
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, peripheral interfaces and I/O on one die. Within the broader semiconductor hierarchy, the PIC18F2553 sits in the PIC18 enhanced flash family of 8-bit RISC microcontrollers from Microchip, which target applications that need richer peripherals (USB, ADC, multiple serial ports) than baseline PIC10/12/16 parts but do not require a 16-bit or 32-bit core. The PIC18 family uses a 16-bit instruction word on an 8-bit data path, allowing linear addressing of larger memory arrays.
Key features include nanoWatt power-management modes for battery-aware designs, three serial ports (FS-USB, I2C, SPI up to 10 Mbit/s), a 10-channel 12-bit ADC with on-chip acquisition, two analog comparators, a Capture/Compare/PWM (CCP) module, an Enhanced CCP module, and an internal 8 MHz oscillator that can be switched to 32 MHz via the 4x PLL to reach the full 48 MHz MIPS rate. A hardware USART and a parallel slave port round out the peripheral set, and the part supports in-circuit serial programming (ICSP) plus in-circuit debug.
Typical applications include USB HID / CDC peripherals (custom keyboards, mice, sensor bridges, virtual COM ports), low-cost data-acquisition front-ends, industrial sensor conditioning with the 12-bit ADC, capacitive-touch user interfaces, LED controllers and small consumer appliances that need on-the-go connectivity without an external PHY. The integrated FS-USB transceiver and the on-chip 3.3V regulator remove the need for an external PHY or LDO for the bus pull-up rail.
When designing, observe the 4.2 V minimum VDD for the 48 MHz configuration; below this the part must be derated to a lower Fosc. Place a 1 uF bulk + 0.1 uF decoupling pair close to VDD, keep the D+/D- traces length-matched and 90 ohm differential impedance, and reserve an ICSP header (PGD/PGC/VPP/GND) for factory programming.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not typically gathered in a single place on the manufacturer datasheet, including USB PCB-layout guidance and PIC18-to-PIC18F2xKxx migration notes.
Drop-in-Alternativen für PIC18F2553-I/SO – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC18F2553-I/SO (gleiche Bauform und Footprint) – abweichend in Package, ADC, Timers, Serial Interfaces, I/O Pins.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC18F2550-I/SO
✅ Drop-In✓ Auf Lager
$4.1 / Stück
Datenblatt ansehen →PIC18F2455-I/SO
✅ Drop-In✓ Auf Lager
$6.4 / Stück
Datenblatt ansehen →PIC18F2553T-I/SO
✅ Drop-In✓ Auf Lager
$2.89 / Stück
Datenblatt ansehen →PIC18F25K50-I/SO
✅ Drop-In✓ Auf Lager
$2.95 / Stück
Datenblatt ansehen →PIC18F2553-I/SO Grenzwerte & elektrische Eigenschaften
| Device Family | PIC18F255x (PIC18 enhanced flash, USB) |
| Core Architecture | 8-bit PIC18 RISC, 16-bit instruction word |
| Maximum CPU Frequency | 48 MHz (12 MIPS) |
| Program Flash Memory | 32 KB (16K x 16) |
| SRAM | 2 KB |
| EEPROM | 256 bytes |
| Supply Voltage (VDD) | 4.2 V to 5.5 V (full 48 MHz); 2.0 V to 5.5 V (lower Fosc) |
| Betriebstemperatur | -40 C to +85 C (Industrial, "I" grade) |
| I/O Pins | 25 |
| ADC | 10-channel, 12-bit, successive approximation |
| USB Interface | USB 2.0 Full-Speed (12 Mbit/s), on-chip transceiver |
| Serial Interfaces | FS-USB, I2C (Master/Slave), SPI (up to 10 Mbit/s), EUSART |
| Timers | Timer0/1/2/3 + 2 CCP + 1 ECCP |
| Analog Comparators | 2 |
| Internal Oscillator | 8 MHz, switchable to 32 MHz via 4x PLL (48 MIPS) |
| Gehäuse | 28-pin SOIC (300-mil), "SO" designator |
| Montageart | Surface Mount |
| RoHS-Status | Compliant |
| Programming/Debug | ICSP (2-wire), ICD support |
PIC18F2553-I/SO Pin-Konfiguration
| Pin 1 | MCLR/VPP/RE3 — Master clear reset (active low) / programming voltage input / digital I/O RE3 |
| Pin 2 | RA0/AN0 — PORTA bit 0, analog input 0 |
| Pin 3 | RA1/AN1 — PORTA bit 1, analog input 1 |
| Pin 4 | RA2/AN2/VREF- — PORTA bit 2, analog input 2, ADC negative reference |
| Pin 5 | RA3/AN3/VREF+ — PORTA bit 3, analog input 3, ADC positive reference |
| Pin 6 | RA4/T0CKI — PORTA bit 4, Timer0 clock input |
| Pin 7 | RA5/AN4/SS — PORTA bit 5, analog input 4, SPI slave select |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI — Crystal input / external clock input |
| Pin 10 | OSC2/CLKO — Crystal output / clock output |
| Pin 11 | VDD — Positive supply voltage (4.2 V to 5.5 V) |
| Pin 12 | VSS — Ground reference |
| Pin 13 | RB0/AN12/INT0 — PORTB bit 0, analog input 12, external interrupt 0 |
| Pin 14 | RB1/AN10/INT1 — PORTB bit 1, analog input 10, external interrupt 1 |
| Pin 15 | RB2/AN8/INT2 — PORTB bit 2, analog input 8, external interrupt 2 |
| Pin 16 | RB3/AN9/CCP2 — PORTB bit 3, analog input 9, Capture/Compare/PWM 2 |
| Pin 17 | RB4/AN11 — PORTB bit 4, analog input 11 |
| Pin 18 | RB5/KBI1/PGM — PORTB bit 5, interrupt-on-change, LVP programming |
| Pin 19 | RB6/KBI2/PGC — PORTB bit 6, ICSP clock input |
| Pin 20 | RB7/KBI3/PGD — PORTB bit 7, ICSP data I/O |
| Pin 21 | RC0/T1OSO/T1CKI — PORTC bit 0, Timer1 oscillator output / clock input |
| Pin 22 | RC1/T1OSI/CCP2 — PORTC bit 1, Timer1 oscillator input, CCP2 alt |
| Pin 23 | RC2/CCP1 — PORTC bit 2, Capture/Compare/PWM 1 |
| Pin 24 | VUSB — Internal USB 3.3 V regulator output, decoupling to VSS |
| Pin 25 | RC4/D- — PORTC bit 4, USB D- data line |
| Pin 26 | RC5/D+ — PORTC bit 5, USB D+ data line |
| Pin 27 | RC6/TX/CK — PORTC bit 6, EUSART TX / clock |
| Pin 28 | RC7/RX/DT — PORTC bit 7, EUSART RX / data |
Typische Anwendungen
PIC18F2553-I/SO ist geeignet für 7 Anwendungs: USB HID Peripheral (Keyboard / Mouse / Sensor Bridge), USB CDC Virtual COM Port / Data Acquisition Front-End, Industrial Sensor Conditioning / 4-20 mA Transmitter, Capacitive Touch User Interface, LED Lighting Controller (DMX / WS28xx / Art-Net), Consumer Appliance User Interface / Battery Charger, Educational / Hobbyist Development Platform.
USB HID Peripheral (Keyboard / Mouse / Sensor Bridge)
The PIC18F2553-I/SO is a strong fit for USB HID peripherals because its integrated USB 2.0 Full-Speed transceiver, on-chip 3.3 V VUSB regulator, and 12 MIPS PIC18 core can run Microchip's free USB HID bootloader and HID class driver without an external PHY. Designers typically wire D+ and D- directly to the USB connector with a 90 ohm differential pair, attach a 1.5 kohm pull-up on D+ for full-speed detection, and add 0.1 uF decoupling on VUSB. With 32 KB of flash and 2 KB of SRAM, the part comfortably fits a USB HID stack plus custom I/O handling for buttons, rotary encoders, or sensor reports; pin-to-pin drop-in alternatives (PIC18F2550-I/SO, PIC18F25K50-I/SO) cover firmware-size and migration variants.
Empfohlen
USB CDC Virtual COM Port / Data Acquisition Front-End
For low-cost USB-to-UART bridges or CDC-based DAQ modules, the PIC18F2553-I/SO's 48 MHz CPU and FS-USB peripheral deliver 12 MIPS of throughput for the CDC class driver plus a fixed-rate ADC streaming pipeline. The 10-channel 12-bit ADC supports up to 100 ksps aggregate with DMA-style double-buffering in firmware, and the nanoWatt sleep modes keep idle current under 5 uA for battery-aware designs. Compared to the PIC18F2550-I/SO, the F2553's 32 KB flash lets the device run the full CDC stack plus a small command interpreter and oversampling firmware. Pin-compatible same-brand alternatives (PIC18F2455-I/SO) allow a designer to keep one PCB footprint and swap silicon if supply tightens.
Empfohlen
Industrial Sensor Conditioning / 4-20 mA Transmitter
The PIC18F2553-I/SO's 12-bit ADC, two analog comparators and nanoWatt power-management suite suit 4-20 mA loop-powered sensor transmitters where the MCU must digitize analog signals, run linearization math, and drive a current loop from a tightly regulated supply. Running at 48 MHz from the VDD rail and idling in sleep between conversions keeps average current below the 3.5 mA loop budget, while the 2 KB of SRAM holds transient oversampling buffers. The same SOIC-28 footprint is shared by the PIC18F2550-I/SO and PIC18F25K50-I/SO, so a board designed for the F2553 accepts its pin-compatible variants without layout changes, helping industrial buyers manage multi-sourcing.
Empfohlen
Capacitive Touch User Interface
For low-cost capacitive touch panels (keypads, sliders, proximity wake-up), the PIC18F2553-I/SO's nanoWatt mode, hardware timer-capture blocks and 12-bit ADC enable the mTouch firmware framework from Microchip to scan up to ~12 electrodes without an external touch controller. The internal 8 MHz RC oscillator provides low-power wake-ups, and the 4x PLL brings the core to 48 MHz for response-heavy gestures. Adding the USB peripheral makes it easy to expose the touch state as a HID digitizer over USB, while the 28-pin SOIC footprint keeps the BOM under 50 cents per axis. The PIC18F2550-I/SO is the closest same-brand drop-in for simpler buttons-only touch panels.
Empfohlen
LED Lighting Controller (DMX / WS28xx / Art-Net)
LED controllers that decode DMX-512 or drive WS28xx daisy-chained LEDs need a real-time bit-banging peripheral plus USB for configuration, both of which the PIC18F2553-I/SO provides via its SPI peripheral (up to 10 Mbit/s), hardware PWM/CCP blocks, and integrated USB. The 48 MHz CPU sustains 800 kHz WS28xx refresh for several hundred pixels per output pin while servicing USB CDC control traffic. The 28-pin SOIC variant is small enough for a 25 mm x 30 mm controller board, and the part's industrial temperature grade is comfortable for outdoor-rated lighting. Designers wanting more RAM or a faster core migrate to the PIC18F25K50-I/SO with no PCB rework.
Empfohlen
Consumer Appliance User Interface / Battery Charger
Consumer appliances from coffee machines to cordless vacuum battery chargers benefit from the PIC18F2553-I/SO's mix of analog (12-bit ADC, two comparators for current sensing), PWM (CCP + ECCP for switch-mode power stages) and USB (for diagnostics or firmware upgrade via service connector). The 32 KB flash accommodates a small real-time operating loop and a USB CDC diagnostic interface, while the 2 KB SRAM holds ADC averaging buffers for current measurements. The industrial temperature grade (-40 C to +85 C) covers most household-appliance environments, and pin-compatible same-brand parts (PIC18F2550-I/SO) let designers downsize flash for cost-sensitive variants.
Empfohlen
Educational / Hobbyist Development Platform
The PIC18F2553-I/SO is widely used on hobbyist development boards (PICKit 3-compatible ICD boards, custom USB trainers) because it combines a popular 8-bit PIC core with built-in USB so students do not need an external UART-to-USB bridge chip. The 28-pin SOIC is hand-solderable with basic tooling, the ICSP header only needs four signals (PGD/PGC/VPP/GND), and free Microchip tools (MPLAB X IDE, XC8 compiler, MCC code configurator) support it. Pin-compatible same-brand alternatives (PIC18F2455-I/SO and PIC18F2550-I/SO) let instructors teach with one board that scales across memory sizes without redesigning the PCB.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC18F2553-I/SO – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC18F2550-I/SO | PIC18F2455-I/SO | PIC18F2553T-I/SO | PIC18F25K50-I/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin SOIC (300-mil) | 28-pin SOIC (same) | 28-pin SOIC (same) | 28-pin SOIC (same) | 28-pin SOIC (same) |
| Max CPU Frequency | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 64 MHz (16 MIPS, +33%) |
| Program Flash | 32 KB | 16 KB (-50%) | 24 KB (-25%) | 32 KB (same) | 32 KB (same) |
| SRAM | 2 KB | 2 KB | 1.2 KB (-40%) | 2 KB | 2 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B |
| USB Peripheral | FS-USB 2.0 (12 Mbit/s) | FS-USB 2.0 (same) | FS-USB 2.0 (same) | FS-USB 2.0 (same) | FS-USB 2.0 with OTG option |
| ADC | 10-ch 12-bit | 10-ch 12-bit (same) | 10-ch 12-bit (same) | 10-ch 12-bit (same) | 14-ch 12-bit (+40% channels) |
| Supply Voltage (full speed) | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 1.8 V to 5.5 V (wider) |
Wichtigste Unterscheidungsmerkmale
- Largest flash in same-package PIC18F2x53 lineup (vs. PIC18F2550-I/SO)
- Higher CPU headroom and wider supply range than legacy F255x (vs. PIC18F25K50-I/SO)
- More flash than PIC18F2455 in same 28-SOIC footprint (vs. PIC18F2455-I/SO)
Designhinweise
USB differential-pair layout is the single most important PCB decision on a PIC18F2553 board. Route D+ (RC5) and D- (RC4) as a 90 ohm differential pair with continuous ground reference, no splits in the reference plane under the pair, and total length under 25 mm where possible. Place the 1.5 kohm pull-up on D+ to VUSB (3.3 V, not VDD) as close to the D+ pin as possible, and add a USBLC6-2SC6 or similar ESD array right at the USB connector. The 0.1 uF + 1 uF decoupling pair on VUSB and a 0.1 uF + 1 uF pair on VDD must be placed within 3 mm of the respective pins.
At 48 MHz Fosc the PIC18F2553 draws roughly 15 to 25 mA of I/O supply current depending on peripheral activity, plus up to 8 mA on VUSB for the USB transceiver. Use a low-dropout regulator such as MCP1700 or MCP1826S that can deliver 50 mA with at least 200 mV of headroom, and tie the brown-out reset (BOR) enable fuse so the part does not run at indeterminate VDD levels during slow power ramps. Below 4.2 V the device can still run, but the maximum Fosc must be reduced per the datasheet derating curves (e.g., 3.0 V VDD limits the part to about 40 MHz).
Three common pitfalls on PIC18F2553 designs: (1) forgetting the ICSP header and not being able to recover a device whose configuration bits disable the LVP pin, so always reserve 2x3 or 2x5 pin header with PGD/PGC/VPP/MCLR/VSS/VDD; (2) enabling the internal PLL with a wrong CPUDIV configuration and ending up with the core off-frequency, which produces USB enumeration failures - always set PLLCFG to the right HFINTOSC source and CPUDIV to /1 for 48 MHz; (3) assuming the 3.3 V VUSB regulator can source the pull-up resistor and external circuits - VUSB is for the USB transceiver only and cannot supply more than about 5 mA externally.
Estimated: the PIC18F2553 in 28-SOIC has a theta_JA of approximately 80 C/W in still air on a standard 2-layer JEDEC test PCB, and roughly 50 C/W on a 4-layer board with a continuous ground pour. At 25 mA VDD current and 5.0 V VDD the part dissipates about 125 mW, giving a junction temperature rise of 10 C above ambient on a 4-layer board, well below the 150 C Tj limit. On a 2-layer board the rise is around 16 C, still comfortable, so no heatsink is needed unless the device is mounted in an enclosed enclosure with no airflow.
Place the 28-SOIC footprint on a 0.65 mm pitch with the standard SOIC-28 land pattern (IPC-SM-782). The ICSP header should be placed at the board edge for factory programming access, and any debugger clip must clear the crystal or external oscillator components on pins 9-10. Keep the ICSP trace between MCLR/VPP and the ICSP header short (under 30 mm) and include a small series resistor (10 to 100 ohm) to dampen ringing on the high-impedance MCLR line during programming.
Compliance-Informationen
RoHS compliant per Microchip product page; lead-free and halogen-free per Microchip material declaration. Not AEC-Q100 qualified - industrial (-40 to +85 C) only. The "I" suffix in -I/SO denotes industrial temperature grade. No MIL-STD or IEC qualification certificates are published for this part.
