PIC18F2620-E/SP - 8-Bit 25MHz 64KB Flash MCU | Microchip 28-SPDIP
N.º de pieza: PIC18F2620-E/SP ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $12.46 | $12,46 |
| 10 | $11.21 | $112,10 |
| 100 | $9.99 | $999,00 |
| 500 | $9.2 | $4.600,00 |
| 1.000 | $8.65 | $8.650,00 |
PIC18F2620-E/SP Descripción general
A PIC microcontroller (MCU) is a compact programmable processor that integrates CPU core, Flash program memory, RAM, EEPROM, peripherals, and interrupt logic on a single silicon die. Within the Microchip taxonomy, the PIC18F2620 sits in the enhanced mid-range PIC18 family (8-bit RISC architecture with C-compiler-friendly instruction set), which itself is a sub-family of the broader PIC microcontroller hierarchy: PIC microcontroller -> 8-bit MCU -> embedded MCU -> microcontroller -> semiconductor IC.
Key features of the PIC18F2620 include ten 10-bit Analog-to-Digital Converter (ADC) channels, a 10 MIPS execution rate, an 8x8 single-cycle hardware multiplier, an internal oscillator block (31 kHz to 8 MHz) with PLL, a Fail-Safe Clock Monitor, and a Watchdog Timer with its own dedicated RC oscillator. The 25 bidirectional I/O pins support capacitive touch via the mTouch sensing solution, and the device includes multiple serial peripherals: Enhanced USART, MSSP (I2C/SPI), and up to two CCP/ECCP modules. NanoWatt power management offers Idle, Sleep, and several low-power modes for battery-friendly designs.
Architecturally, the PIC18F2620 uses a Harvard-class RISC core with 16-bit opcodes and 8-bit data path, dual-pointer stack with hardware context save, and a unified 16-bit instruction word that speeds single-cycle execution and simplifies C code generation. The integrated band-gap reference and self-programmable Flash support field firmware updates via ICSP, while the 256-byte EEPROM provides non-volatile parameter storage.
Typical applications include industrial automation controllers, automotive body/comfort ECUs, HVAC controls, medical patient-monitoring peripherals, low-cost sensor hubs, USB/serial bridges (when paired with the PIC18F2550 in the family), smart energy meters, and consumer appliances. The wide temperature range also enables outdoor signage, white-goods control boards, and instrumentation front-ends.
Design tip: the SPDIP package is preferred for breadboarding and legacy through-hole boards, but surface-mount variants (PIC18F2620-I/SO and PIC18F2620-I/SS) share the same pinout if you need to migrate to SMT. Always reserve a 6-pin ICSP header (PGD/PGC/MCLR/VSS/VDD/VPP) for in-circuit programming.
This page synthesizes distributor pricing for the PIC18F2620-E/SP, drop-in same-package alternatives, application examples, and design guidance not aggregated in the manufacturer datasheet alone.
Alternativas directas para PIC18F2620-E/SP — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC18F2620-E/SP (mismo factor de forma y huella) — difiere en Timers, Package, ADC, Program Memory (Flash), Core Architecture.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC18F2620-I/SP
✅ Sustitución directa✓ En stock
$4.85 / unidad
Ver hoja de datos →PIC18F2525-E/SP
✅ Sustitución directa✓ En stock
$5.1 / unidad
Ver hoja de datos →PIC18F2525-I/SP
✅ Sustitución directa✓ En stock
$5.45 / unidad
Ver hoja de datos →PIC18F2520-E/SP
✅ Sustitución directa✓ En stock
$5.1 / unidad
Ver hoja de datos →PIC18F2585-E/SP
✅ Sustitución directa✓ En stock
$5.02 / unidad
Ver hoja de datos →PIC18F2580-E/SP
✅ Sustitución directa✓ En stock
$5.31 / unidad
Ver hoja de datos →PIC18F2620-E/SP Valores máximos y características eléctricas
| Core Architecture | PIC18 (Enhanced Mid-Range 8-bit RISC) |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data Memory (RAM) | 3,968 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 25 MHz (10 MIPS) |
| Operating Voltage Range | 4.2 V to 5.5 V (PIC18F2620 -E/ -I variants) |
| I/O Pins | 25 |
| ADC | 10-bit, up to 10 channels |
| Timers | Timer0/1/2/3 (16-bit & 8-bit) |
| CCP / ECCP Modules | 2 (1 CCP + 1 ECCP) |
| Serial Interfaces | EUSART, MSSP (I2C / SPI) |
| Internal Oscillator | 31 kHz to 8 MHz (with PLL) |
| Hardware Multiplier | 8 x 8 single-cycle |
| Watchdog Timer | Yes (with dedicated RC oscillator) |
| Operating Temperature (E suffix) | -40 C to +125 C (Extended) |
| Encapsulado | 28-pin SPDIP (SP) |
| Tipo de montaje | Through-Hole |
| ICSP Programming Pins | PGD, PGC, MCLR/VPP |
Configuración de pines de PIC18F2620-E/SP
| Pin 1 | MCLR/VPP/RE3 — Master Clear (Reset) input / Programming voltage / PORTE bit 3 |
| 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 | OSC1/CLKI — Crystal oscillator input / external clock input |
| Pin 9 | OSC2/CLKO — Crystal oscillator output / clock output |
| Pin 10 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| Pin 11 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 output |
| Pin 12 | RC2/CCP1 — PORTC bit 2 / CCP1 output |
| Pin 13 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 14 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 15 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 16 | RC6/TX/CK — PORTC bit 6 / EUSART TX / EUSART clock |
| Pin 17 | RC7/RX/DT — PORTC bit 7 / EUSART RX / EUSART data |
| Pin 18 | VSS — Ground reference |
| Pin 19 | VDD — Positive supply voltage |
| Pin 20 | RB0/INT0/AN10 — PORTB bit 0 / External interrupt 0 / Analog input 10 |
| Pin 21 | RB1/INT1 — PORTB bit 1 / External interrupt 1 |
| Pin 22 | RB2/INT2 — PORTB bit 2 / External interrupt 2 |
| Pin 23 | RB3/AN9 — PORTB bit 3 / Analog input 9 |
| Pin 24 | RB4/AN8 — PORTB bit 4 / Analog input 8 |
| Pin 25 | RB5/AN7 — PORTB bit 5 / Analog input 7 |
| Pin 26 | RB6/AN6/PGC — PORTB bit 6 / Analog input 6 / ICSP clock |
| Pin 27 | RB7/AN5/PGD — PORTB bit 7 / Analog input 5 / ICSP data |
| Pin 28 | VSS — Ground reference (secondary) |
Aplicaciones típicas
PIC18F2620-E/SP es adecuado para 7 aplicacións: Industrial Automation Controllers, Automotive Body & Comfort ECUs, HVAC Climate Control Boards, Medical Patient Monitoring Peripherals, Smart Energy Meters & Data Loggers, Consumer Appliance Control Boards, Sensor Hubs & Low-Cost IoT Bridges.
Industrial Automation Controllers
The PIC18F2620-E/SP's 64 KB Flash and 3,968-byte RAM fit ladder-logic or modbus-style controller firmware with margin. The 25 MHz core runs 10 MIPS, sufficient for soft-PLC scan loops and PID loops at 1 kHz. The Extended -40 to +125 C temperature grade survives factory-floor heat, and 25 I/O pins drive relays, opto-isolators, and 4-20 mA loops. Connect via EUSART to RS-485 transceivers for multi-drop fieldbus. Use MSSP in SPI mode to drive LED segment displays or external ADC front-ends, and the 10-bit ADC to read analog sensors.
Recomendado
Automotive Body & Comfort ECUs
The -40 to +125 C Extended temperature grade (-E suffix) is mandatory for under-dash and door-module automotive ECUs. The PIC18F2620-E/SP's 64 KB Flash stores door-lock, mirror-adjust, and seat-memory state machines, while 3,968 bytes of RAM buffers LIN bus frames. The 10-channel 10-bit ADC reads switch positions and potentiometer wiper voltages, and ECCP modules drive small DC motors for window regulators. Watchdog Timer with dedicated RC oscillator is essential for ISO 26262 ASIL-A compliance, and the Fail-Safe Clock Monitor detects oscillator failure and triggers a safe shutdown.
Recomendado
HVAC Climate Control Boards
The PIC18F2620-E/SP runs multi-zone HVAC control firmware within 64 KB Flash, leaving headroom for proprietary diagnostic routines. The 25 MHz core executes 10 MIPS, comfortably handling temperature averaging, humidity compensation, and schedule lookups in real time. Ten ADC inputs read thermistor networks (NTC 10 kohm), and PWM via ECCP modulates triac-fired blower motors. The Extended -40 to +125 C grade tolerates rooftop-unit enclosures, and the Watchdog Timer recovers the MCU from brown-out events on noisy 24 VAC lines after rectification.
Recomendado
Medical Patient Monitoring Peripherals
The PIC18F2620-E/SP serves as the housekeeping controller in medical peripherals such as pulse-oximeter cables, infusion-pump keypads, and portable spirometers. Its 3,968 bytes of RAM buffer display frames and trend logs, while 256 bytes of EEPROM store calibration constants non-volatilely across battery swaps. The EUSART links to Bluetooth or Wi-Fi modules for data uplink, and MSSP in SPI mode drives OLED displays. The 25 MHz MIPS throughput is sufficient for sensor-fusion preprocessing, and the Extended temperature range supports storage in ambulances and cold-chain transport.
Recomendado
Smart Energy Meters & Data Loggers
The PIC18F2620-E/SP integrates 64 KB Flash for IEC 62056-21 / DLMS-style metering firmware, including tariff schedules and tamper-event logs. The 10-bit ADC with multiple channels reads current-transformer outputs, and ECCP drives the calibration LED. The Watchdog Timer plus Fail-Safe Clock Monitor satisfy utility-grade reliability requirements, and the Extended temperature grade handles outdoor meter enclosures. EEPROM stores kWh totals across power cycles, and the 25 MHz core performs the metrology calculations every second without missing the RTC tick.
Recomendado
Consumer Appliance Control Boards
Dishwasher, washing-machine, and oven control boards benefit from the PIC18F2620-E/SP's 25 I/O pins driving seven-segment displays, keypads, and triac-fired heating elements. The 64 KB Flash stores wash-cycle profiles and fault-diagnostic trees, while 3,968 bytes of RAM holds user-interface strings. The Extended temperature grade survives the heat-soak of cooking appliances, and the Watchdog Timer recovers from mains-brownout glitches. The internal 31 kHz-8 MHz oscillator eliminates external crystals on cost-sensitive boards, and NanoWatt sleep modes reduce standby power below 0.5 mA.
Recomendado
Sensor Hubs & Low-Cost IoT Bridges
The PIC18F2620-E/SP aggregates I2C/SPI sensors (temperature, pressure, accelerometers) and forwards data over UART-to-Bluetooth or UART-to-Wi-Fi bridges. The 3,968 bytes of RAM buffer sensor packets, and the 25 MHz MIPS rate handles modest sensor-fusion routines. The MSSP module simultaneously services both I2C sensors and SPI peripherals via separate instances on PIC18F2620 family devices. EEPROM stores configuration and pairing keys, and the internal oscillator removes external crystals for compact sensor modules. The Extended temperature grade supports outdoor and industrial IoT deployments.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC18F2620-E/SP — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC18F2620-I/SP | PIC18F2525-E/SP | PIC18F2525-I/SP | PIC18F2520-E/SP | PIC18F2585-E/SP | PIC18F2580-E/SP |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP (SP) | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same |
| Program Flash | 64 KB | 64 KB | 48 KB (-25%) | 48 KB (-25%) | 32 KB (-50%) | 48 KB (-25%) | 32 KB (-50%) |
| RAM | 3,968 bytes | 3,968 bytes | 3,968 bytes | 3,968 bytes | 1,536 bytes (-61%) | 3,968 bytes | 1,536 bytes (-61%) |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Max CPU Speed | 25 MHz / 10 MIPS | 25 MHz / 10 MIPS | 25 MHz / 10 MIPS | 25 MHz / 10 MIPS | 25 MHz / 10 MIPS | 25 MHz / 10 MIPS | 25 MHz / 10 MIPS |
| Temperature Grade | Extended -40 to +125 C | Industrial -40 to +85 C | Extended -40 to +125 C | Industrial -40 to +85 C | Extended -40 to +125 C | Extended -40 to +125 C | Extended -40 to +125 C |
| Integrated Peripherals | EUSART + MSSP + 2x CCP/ECCP | Same | Same | Same | Same | Adds CAN peripheral | Adds CAN peripheral |
| ADC Channels | 10 channels / 10-bit | 10 channels / 10-bit | 10 channels / 10-bit | 10 channels / 10-bit | 10 channels / 10-bit | 10 channels / 10-bit | 10 channels / 10-bit |
Diferenciadores clave
- Largest Flash in 28-SPDIP PIC18F2525/2620/4525/4620 family (frente a PIC18F2525-E/SP)
- True Extended temperature grade (-40 to +125 C) for harsh environments (frente a PIC18F2620-I/SP)
- Full peripheral complement without CAN overhead (frente a PIC18F2585-E/SP / PIC18F2580-E/SP)
- Doubled RAM versus older PIC18F2520 generation (frente a PIC18F2520-E/SP)
Notas de diseño
The PIC18F2620-E/SP operates from 4.2 V to 5.5 V; add a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 20) and a bulk 10 uF tantalum or aluminum polymer capacitor on the same rail. Use a ferrite bead if the 5 V rail shares a switching regulator with analog circuitry, and place a TVS diode (e.g. SMBJ5.0A) at the input of any field-wired connector. The MCLR/VPP pin (pin 1) needs a 10 kohm pull-up to VDD and a 100 nF cap to VSS to filter noise; without it, transient spikes can falsely reset the part in industrial environments.
Route the crystal traces (OSC1/OSC2, pins 8/9) as short as possible and keep ground pour at least 2 mm away from the crystal body. For HS mode (25 MHz), keep the crystal-to-pin traces under 10 mm and surround them with a ground guard ring. Place the ICSP header (PGD on pin 27, PGC on pin 26) on the board edge for production programming access, and label pin 1 clearly because the SPDIP notch orientation is sometimes reversed during assembly.
Three common pitfalls when migrating from PIC18F2525 firmware: (1) the PIC18F2620's larger Flash can shift the interrupt-vector table relative to bootloader code - verify the BOOT_ADDRESS fuses match the new code size; (2) the Analog input count is the same (10 channels) but channel mapping on PORTB pins differs slightly from the PIC18F4525/4620, so recheck ADC channel assignments; (3) do not apply > 5.5 V to any I/O pin or to VDD, even briefly, or the internal ESD clamp will forward-conduct and corrupt ADC readings. Use the LF variant (PIC18LF2620) if you need sub-5 V operation.
When using the PIC18F2620-E/SP's EUSART in RS-485 mode, isolate the TX/RX traces from the analog-input traces with a ground trace or guard ring to prevent switching noise from coupling into ADC samples. Place the RS-485 transceiver (e.g. MAX485) within 50 mm of the EUSART pins (RC6/RC7), and provide a 120 ohm termination at the cable-end node only. For I2C, use 4.7 kohm pull-ups on SCL/SDA (pins 13/14) at 100 kHz, or 2.2 kohm at 400 kHz Fast-Mode; weaker pull-ups cause rise-time violations on multi-slave buses.
The PIC18F2620-E/SP's quiescent current is approximately 1.6 mA active at 25 MHz, plus I/O drive current - in fully-loaded designs with all 25 outputs sourcing 20 mA, total current can exceed 500 mA. The SPDIP-28 package has a thermal resistance theta_JA of approximately 70 C/W in still air, so at 5.5 V x 0.5 A the part dissipates 2.75 W and the junction temperature rises 192 C above ambient - well above the 125 C limit. Derate I/O drive strength or limit active I/O count for high-temperature designs.
Información de cumplimiento
RoHS/REACH/lead-free status not specified in the verified web data; please consult Microchip's PIC18F2620 product page (https://www.microchip.com/en-us/product/PIC18F2620) or the PCN/PDN documents for the SP-package-specific compliance information. AEC-Q100 is not explicitly qualified - automotive users should perform their own PPAP review for the -E/SP variant.
