PIC18F2520T-I/SO - 8-bit 40MHz 32KB Flash MCU | Microchip
Артикул: PIC18F2520T-I/SO ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $7.62 | $7,62 |
| 10 | $6.91 | $69,10 |
| 100 | $5.93 | $593,00 |
| 500 | $5.21 | $2.605,00 |
| 1.000 | $4.62 | $4.620,00 |
PIC18F2520T-I/SO Обзор
This device belongs to the Enhanced Flash Microcontroller family - a category of 8-bit MCUs based on an advanced RISC Harvard architecture with 8x8 single-cycle hardware multiply. The PIC18F family is part of Microchip's broader PIC microcontroller hierarchy (PIC > PIC18 > PIC18F2x20) and is widely deployed in cost-sensitive embedded designs that need precise I/O control, deterministic real-time response, and low active/standby current draw. The 28-pin SOIC form factor is one of the most common surface-mount footprints for industrial controllers.
Key features include 25 digital I/O pins, an internal 31 kHz to 8 MHz oscillator, fail-safe clock monitor with safe shutdown on clock failure, a separate-oscillator watchdog timer with on-chip RC, and hardware peripherals including 10-bit ADC, comparators, PWM, and USART. According to the Microchip datasheet (DS39667), the device operates from 4.2V to 5.5V and supports in-circuit serial programming (ICSP) and in-circuit debugging (ICD).
Typical applications include industrial control panels, automotive body and convenience electronics, sensor signal conditioning nodes, motor control sub-systems, USB-to-UART bridging via companion transceivers, and home appliance user-interface boards. The internal oscillator and wide temperature range make it suited for unattended installations.
When designing with this device, ensure decoupling on every VDD/AVDD pin (100 nF minimum plus a bulk 10 uF), follow Microchip's recommended ICSP ICP layout for in-circuit programming access, and budget the ADC sampling time against the internal TAD clock to keep conversion errors below 1 LSB.
Аналоги без доработки для PIC18F2520T-I/SO — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с PIC18F2520T-I/SO (тот же форм-фактор и посадочное место) — отличается по Package, RAM, Operating Temperature, Program Memory (Flash), Timers.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC18F2520-I/SO
✅ Прямая замена✓ В наличии
$4.65 / шт.
Открыть даташит →PIC18F2520T-I/ML
✅ Прямая замена✓ В наличии
$4.62 / шт.
Открыть даташит →PIC18F2520-E/SP
✅ Прямая замена✓ В наличии
$5.1 / шт.
Открыть даташит →PIC18LF2520-I/SO
✅ Прямая замена✓ В наличии
$4.47 / шт.
Открыть даташит →PIC18F2420T-I/SO
✅ Прямая замена✓ В наличии
$3.5 / шт.
Открыть даташит →PIC18F2320T-I/SO
✅ Прямая замена✓ В наличии
$4.1 / шт.
Открыть даташит →PIC18F2520T-I/SO Максимальные параметры и электрические характеристики
| Core Architecture | 8-bit PIC18 Harvard RISC |
| Maximum CPU Speed | 40 MHz (10 MIPS) |
| Program Memory (Flash) | 32 KB (16K x 16) |
| Data RAM | 3968 bytes |
| Data EEPROM | 256 bytes |
| I/O Pins | 25 |
| Корпус | 28-pin SOIC (SO), wide-body |
| Напряжение питания | 4.2 V to 5.5 V |
| Рабочая температура | -40 C to +85 C (Industrial, I grade) |
| ADC | 10-bit, up to 10 channels |
| Internal Oscillator | 31 kHz to 8 MHz |
| Watchdog Timer | Yes, with dedicated RC oscillator |
| Fail-Safe Clock Monitor | Yes, with safe shutdown on clock failure |
| Hardware Multiplier | 8x8 single-cycle |
| ICSP/ICD | Yes (in-circuit serial programming and debug) |
| Power Management | nanoWatt Technology (multiple idle/sleep modes) |
| Статус RoHS | Compliant |
Конфигурация выводов PIC18F2520T-I/SO
| Контакт 1 | RA2/AN2/VREF- — Digital I/O / analog input / ADC reference minus |
| Контакт 2 | RA3/AN3/VREF+ — Digital I/O / analog input / ADC reference plus |
| Контакт 3 | RA4/T0CKI/C1OUT — Digital I/O / Timer0 clock input / comparator output |
| Контакт 4 | RA5/AN4/SS/HLVDIN/C2OUT — Digital I/O / analog input / SPI slave select / high/low voltage detect input / comparator output |
| Контакт 5 | VSS — Ground |
| Контакт 6 | OSC1/CLKIN/RA7 — Crystal input / external clock / digital I/O |
| Контакт 7 | OSC2/CLKOUT/RA6 — Crystal output / clock output / digital I/O |
| Контакт 8 | RC0/T1OSO/T1CKI — Digital I/O / Timer1 oscillator output or clock input |
| Контакт 9 | RC1/T1OSI/CCP2 — Digital I/O / Timer1 oscillator input / Capture/Compare/PWM 2 |
| Контакт 10 | RC2/CCP1/P1A — Digital I/O / Capture/Compare/PWM 1 / PWM output A |
| Контакт 11 | RC3/SCK/SCL — Digital I/O / SPI clock / I2C clock |
| Контакт 12 | RC4/SDI/SDA — Digital I/O / SPI data in / I2C data |
| Контакт 13 | RC5/SDO — Digital I/O / SPI data out |
| Контакт 14 | RC6/TX/CK — Digital I/O / USART TX / USART synchronous clock |
| Контакт 15 | RC7/RX/DT — Digital I/O / USART RX / USART synchronous data |
| Контакт 16 | VSS — Ground (second VSS on 28-pin SOIC) |
| Контакт 17 | VDD — Positive supply 5 V |
| Контакт 18 | VDD — Positive supply 5 V (second VDD on 28-pin SOIC) |
| Контакт 19 | RB0/INT0/FLT0 — Digital I/O / external interrupt 0 / PWM fault input |
| Контакт 20 | RB1/INT1 — Digital I/O / external interrupt 1 |
| Контакт 21 | RB2/INT2 — Digital I/O / external interrupt 2 |
| Контакт 22 | RB3/INT3/CCP2 — Digital I/O / external interrupt 3 / Capture/Compare/PWM 2 |
| Контакт 23 | RB4 — Digital I/O with interrupt-on-change |
| Контакт 24 | RB5 — Digital I/O with interrupt-on-change |
| Контакт 25 | RB6/PGC — Digital I/O with interrupt-on-change / ICSP clock (ICD) |
| Контакт 26 | RB7/PGD — Digital I/O with interrupt-on-change / ICSP data (ICD) |
| Контакт 27 | RA0/AN0 — Digital I/O / analog input 0 |
| Контакт 28 | RA1/AN1 — Digital I/O / analog input 1 |
Типичное применение
PIC18F2520T-I/SO подходит для 7 применениеs: Industrial Control Panels, Automotive Body and Convenience Electronics, Sensor Signal Conditioning Hubs, Home Appliance User-Interface Boards, USB-to-UART Bridging via Companion Transceivers, Motor Control Sub-Systems, Test and Measurement Front-End.
Industrial Control Panels
The PIC18F2520T-I/SO fits industrial control panels because it provides 25 digital I/O on a compact 28-pin SOIC with the -40C to +85C industrial temperature range, allowing direct interface to push buttons, rotary encoders, LED indicators, and relays on a 5 V rail. Its 10 MIPS throughput handles deterministic scanning of keypad matrices, Modbus-over-USART polling, and PID loops at well under 1 ms cycle times, while nanoWatt sleep modes drop quiescent to <1 uA between operator events to meet IEC 61010-1 leakage budgets.
Рекомендуется
Automotive Body and Convenience Electronics
While the PIC18F2520T-I/SO itself is industrial-grade, the same firmware base serves automotive body controllers for window lifts, mirror adjust, and lighting modules where 25 I/O and 40 MHz performance are sufficient at 5 V. The 10-bit ADC reads thermistor and current-sense inputs for load diagnostics, and the CCP/ECCP hardware PWM dims interior LEDs without CPU intervention. For AEC-Q100 qualified versions use the automotive-specification variant identified by Microchip with the VAO suffix.
Рекомендуется
Sensor Signal Conditioning Hubs
The PIC18F2520T-I/SO is well suited to remote sensor nodes that aggregate 4-20 mA analog inputs and RTD/thermistor bridges. The 10-bit ADC over-multiplexed with internal comparators provides dual-rate sampling for noise rejection, and the 32 KB Flash accommodates lookup-table linearization for each transducer. Its fail-safe clock monitor shuts down the I/O bus if the oscillator fails, while the dedicated-RC watchdog independently recovers from firmware lockups.
Рекомендуется
Home Appliance User-Interface Boards
For washing-machine, dishwasher, and microwave control boards, the PIC18F2520T-I/SO drives 7-segment or dot-matrix LEDs, capacitive touch buttons, and rotary encoders within a single 28-pin SOIC. The USART and MSSP (SPI/I2C) peripherals connect to LED-driver ICs, EEPROM parameter storage, and expansion boards for example ZIGBEE or BLUETOOTH modules. At $4.62 per unit at qty-1000, this part keeps appliance-grade user-interface BOM cost in line.
Рекомендуется
USB-to-UART Bridging via Companion Transceivers
Combined with an MCP2200 or MCP2221 USB-UART bridge IC, the PIC18F2520T-I/SO effectively becomes a low-cost USB-to-CAN or USB-to-RS485 gateway in industrial automation, weighing scales, or laboratory-instrument front-ends. The 32 KB Flash is more than enough for protocol-conversion firmware, and the 40 MHz CPU can simultaneously handle 921600 baud UART traffic plus background USB enumeration on the MCP2221 I2C/SPI channels.
Рекомендуется
Motor Control Sub-Systems
The PIC18F2520T-I/SO's ECCP (Enhanced Capture/Compare PWM) module provides complementary PWM with programmable dead-band for H-bridge and half-bridge drivers in brushed-DC and small BLDC motor sub-systems like small pumps, fans, and HVAC dampers. Its 10-bit ADC samples back-EMF or current-sense resistors at up to 100 kS/s, and 3968 bytes of RAM hold PID-state for software loops running alongside the hardware PWM. The internal 8 MHz oscillator eliminates an external crystal for cost-sensitive motor boards.
Рекомендуется
Test and Measurement Front-End
In low-cost hand-held testers and data loggers, the PIC18F2520T-I/SO controls ADC sampling, button inputs, and an SPI-LCD display within the 28-pin SOIC footprint. The 32 KB Flash stores measurement routines (resistance decoding, frequency counting, continuity tests), while the 256-byte EEPROM saves calibration constants. Its USART streamlines firmware updates via a dedicated bootloader, and the 10 MIPS CPU bandwidth reads 8-digit DMM-style displays within a 50 ms refresh budget.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC18F2520T-I/SO — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC18F2520-I/SO | PIC18F2520T-I/ML | PIC18F2520-E/SP | PIC18LF2520-I/SO | PIC18F2420T-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin SOIC (SO) | 28-pin SOIC (SO) - same | 28-pin QFN (ML) - different footprint | 28-pin SPDIP (SP) - different footprint | 28-pin SOIC (SO) - same | 28-pin SOIC (SO) - same |
| Program Memory (Flash) | 32 KB | 32 KB - same | 32 KB - same | 32 KB - same | 32 KB - same | 16 KB - smaller (-50%) |
| Maximum CPU Speed | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 4 MHz / 1 MIPS (LF series) | 40 MHz / 10 MIPS |
| Supply Voltage Range | 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 | 2.0 V to 5.5 V (wider) | 4.2 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (I grade) | -40 C to +85 C (I grade) | -40 C to +85 C (I grade) | -40 C to +125 C (E grade, wider) | -40 C to +85 C (I grade) | -40 C to +85 C (I grade) |
| I/O Pins | 25 | 25 | 25 | 25 | 25 | 25 |
| Shipping Format | Tape & Reel (T) | Tube | Tape & Reel | Tube | Tube | Tape & Reel |
Ключевые отличия
- Industrial-grade tape-and-reel option for SMT production (против PIC18F2520-I/SO)
- Same silicon in 28-pin SOIC industrial part vs QFN automotive option (против PIC18F2520T-I/ML)
- Wide supply tolerance up to 5.5 V (против PIC18LF2520-I/SO)
Заметки по проектированию
Decouple every VDD pin with a 100 nF ceramic capacitor placed within 3 mm of the pin to suppress switching transients, and place a single 10 uF bulk capacitor on the VDD rail near the IC. Per datasheet DS39667, two VDD pins (pin 17 and pin 18) and two VSS pins (5 and 16) are provided on the 28-pin SOIC variant for the 5 V supply. Connect both VDD pins in parallel to the 5 V rail; do not leave a VDD pin floating, as this degrades POR and BOR thresholds.
Reserve PCB space for the ICSP programming/debug header (typically 6-pin 0.1-inch header on pins 25 PGC, 26 PGD, plus VDD, VSS, MCLR) to allow in-circuit programming and in-circuit debugging per Microchip application note TB087. Adding this footprint to the production board eliminates rework during prototyping and firmware updates. Also keep digital switching traces away from analog AN0-AN4 inputs to minimize ADC cross-talk.
The 'T' in PIC18F2520T-I/SO does not stand for 'temperature' - it indicates Tape and Reel packaging. Engineering teams may confuse this with -40C to +125C 'E' grade extended-temperature parts; verify both the I/E suffix and the T/- suffix on order codes to avoid sampling the wrong device. Also note that MCLR must be tied through a 10k-100k pull-up to VDD for normal operation; leaving it floating may cause spurious resets.
Информация о соответствии
RoHS compliant per Microchip product page (https://www.microchip.com/en-us/product/PIC18F2520). Industrial '-40C to +85C' temperature grade only; choose AEC-Q100 automotive-grade VAO suffix variant for automotive applications. 28-pin SOIC package is MSL Level 1 per JEDEC J-STD-020.
