PIC18LF6620-I/PT - 8-bit MCU 25MHz 64KB Flash 64-TQFP | Microchip
Référence : PIC18LF6620-I/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $18.02 | $18,02 |
| 10 | $16.4 | $164,00 |
| 100 | $14.1 | $1 410,00 |
| 500 | $12.3 | $6 150,00 |
| 1 000 | $10.85 | $10 850,00 |
PIC18LF6620-I/PT Présentation
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM), and peripherals such as timers, ADC, communication interfaces, and GPIO. Within the broader semiconductor taxonomy, 8-bit MCUs occupy the position of low-power, deterministic, easy-to-program devices used where 32-bit performance is unnecessary but reliability, cost, and code simplicity matter. The PIC18 family is one of Microchip's highest-performance 8-bit lines, employing an enhanced Harvard RISC architecture with hardware multiplier and 16-bit instruction width.
Key features include 64 KB self-programmable Flash with 1024-byte single-word erase blocks, 3840 bytes of SRAM, an integrated 10-bit A/D converter with up to 12 channels, multiple USART/ECAN/SPI/I2C interfaces, four timer modules, and a wide operating voltage window from 2.0V to 5.5V across the LF family. The industrial temperature grade -I covers -40C to +85C ambient operation suitable for factory, automotive interior, and outdoor cabinet environments.
The PIC18LF6620-I/PT uses a 16-bit instruction word with a two-stage instruction pipeline, achieving up to 10 MIPS throughput at 25 MHz. Its nanoWatt Technology provides sleep currents below 1 uA with multiple power-managed operating modes (PRI_RUN, SEC_RUN, RC_RUN, SLEEP, IDLE), and the on-chip ECAN controller supports CAN 2.0B active at up to 1 Mbps, which is why this device family became popular in automotive body and industrial networked control applications.
Typical applications include industrial automation controllers, automotive body and HVAC modules, networked sensors using ECAN/CAN, USB/HID bridges paired with external PHYs, motor-control front-ends for small DC/stepper drives, and consumer appliance control boards. In each case the wide VDD range, large Flash, and on-chip CAN substantially reduce BOM cost compared with using an external transceiver MCU plus discrete protocol stack.
When designing with this part, ensure the in-circuit serial programming (ICSP) pins (PGC/PGD) and the MCLR reset network are routed for accessibility and that VDD decoupling follows the datasheet's 100 nF + bulk capacitor recommendation. For low-noise analog performance, route AVSS/AVDD separately from digital VDD and use the dedicated VREF+ pin when the internal 2.5V/4.096V reference is selected.
This page synthesizes Microchip factory data, distributor stock and pricing from DigiKey/Mouser, and an alternatives table covering the broader PIC18F66 family plus pin-compatible F46 and F65 K-series options not found on a single vendor page.
Alternatives de remplacement direct pour PIC18LF6620-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 PIC18LF6620-I/PT (même facteur de forme et même empreinte) — différant par Package, ADC, I/O Pins, Core Architecture, Data RAM.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18LF6621-I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18LF6622-I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18LF6680-I/PT
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$12.85 / unité
Voir la fiche technique →PIC18LF65K40-I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F6620-I/PT
✅ Remplacement direct✓ En stock
$5.55 / unité
Voir la fiche technique →PIC18LF6525-I/PT
✅ Remplacement direct✓ En stock
$6.2 / unité
Voir la fiche technique →PIC18LF6620-I/PT Valeurs maximales et caractéristiques électriques
| Core | PIC 8-bit RISC (Harvard) |
| Core Size | 8-bit |
| Program Memory | 64 KB (32K x 16) Flash |
| Data RAM | 3840 bytes |
| Maximum CPU Frequency | 25 MHz (10 MIPS) |
| Operating Voltage (VDD) | 2.0 V to 5.5 V (LF family, industrial -I) |
| Plage de température de fonctionnement | -40 C to +85 C (industrial, -I) |
| I/O Pins | 52 I/O |
| ADC | 10-bit, up to 12 input channels |
| Communication Interfaces | ECAN, 2x USART, SPI, I2C |
| Timers | 4 (Timer0/1/2/3) |
| Boîtier | 64-pin TQFP (10x10 mm) |
| Type de montage | Surface Mount |
| Style de montage | SMD/SMT |
| Program Memory Type | Flash (self-programmable) |
| Number of ADC Channels | 12 |
| Data RAM Type | SRAM |
| Largeur du bus de données | 8 bit |
| Instruction Set Architecture | RISC, 16-bit instruction word |
| Watchdog Timer | Yes (WDT with on-chip low-power RC oscillator) |
| Niveau MSL | 3 (168 hours) |
| Lead Free / RoHS | Lead free / RoHS compliant |
| Series | PIC18F LF (eXtreme Low Power) |
| Sub-family | PIC18F65xx / PIC18F66xx |
| On-chip CAN | ECAN (CAN 2.0B active, up to 1 Mbps) |
Configuration des broches de PIC18LF6620-I/PT
| Broche 1 | MCLR — Master Clear (reset) input, active low |
| Broche 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Broche 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Broche 4 | RA2/AN2/VREF- — PORTA bit 2 / analog input 2 / VREF- |
| Broche 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / VREF+ |
| Broche 6 | RA4/AN4 — PORTA bit 4 / analog input 4 |
| Broche 7 | RA5/AN5 — PORTA bit 5 / analog input 5 |
| Broche 8 | RA6 — PORTA bit 6 |
| Broche 9 | OSC1/CLKI/RA7 — Oscillator input / PORTA bit 7 |
| Broche 10 | OSC2/CLKO/RA6 — Oscillator output / PORTA bit 6 alt |
| Broche 11 | RC0/T1OSO — PORTC bit 0 / Timer1 oscillator output |
| Broche 12 | RC1/T1OSI — PORTC bit 1 / Timer1 oscillator input |
| Broche 13 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| Broche 14 | RC3 — PORTC bit 3 |
| Broche 15 | RC4 — PORTC bit 4 |
| Broche 16 | RC5 — PORTC bit 5 |
| Broche 17 | RC6 — PORTC bit 6 |
| Broche 18 | RC7 — PORTC bit 7 |
| Broche 19 | VSS — Ground reference |
| Broche 20 | VDD — Positive supply (2.0V-5.5V LF) |
| Broche 21 | RB0/INT0 — PORTB bit 0 / external interrupt 0 |
| Broche 22 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| Broche 23 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| Broche 24 | RB3/INT3 — PORTB bit 3 / external interrupt 3 |
| Broche 25 | RB4 — PORTB bit 4 |
| Broche 26 | RB5 — PORTB bit 5 |
| Broche 27 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Broche 28 | RB7/PGD — PORTB bit 7 / ICSP data |
| Broche 29 | VSS — Ground reference |
| Broche 30 | VDD — Positive supply |
| Broche 31 | AVSS — Analog ground |
| Broche 32 | AVDD — Analog positive supply |
| Broche 33 | VREF- — ADC reference low |
| Broche 34 | VREF+ — ADC reference high |
| Broche 35 | AN6 — Analog input 6 |
| Broche 36 | AN7 — Analog input 7 |
| Broche 37 | AN8 — Analog input 8 |
| Broche 38 | AN9 — Analog input 9 |
| Broche 39 | AN10 — Analog input 10 |
| Broche 40 | AN11 — Analog input 11 |
| Broche 41 | RD0 — PORTD bit 0 |
| Broche 42 | RD1 — PORTD bit 1 |
| Broche 43 | RD2 — PORTD bit 2 |
| Broche 44 | RD3 — PORTD bit 3 |
| Broche 45 | RD4 — PORTD bit 4 |
| Broche 46 | RD5 — PORTD bit 5 |
| Broche 47 | RD6 — PORTD bit 6 |
| Broche 48 | RD7 — PORTD bit 7 |
| Broche 49 | RE0 — PORTE bit 0 |
| Broche 50 | RE1 — PORTE bit 1 |
| Broche 51 | RE2 — PORTE bit 2 |
| Broche 52 | RE3 — PORTE bit 3 |
| Broche 53 | RE4 — PORTE bit 4 |
| Broche 54 | RE5 — PORTE bit 5 |
| Broche 55 | RE6 — PORTE bit 6 |
| Broche 56 | RE7 — PORTE bit 7 |
| Broche 57 | RF0 — PORTF bit 0 |
| Broche 58 | RF1 — PORTF bit 1 |
| Broche 59 | RF2 — PORTF bit 2 |
| Broche 60 | RF3 — PORTF bit 3 |
| Broche 61 | RF4 — PORTF bit 4 |
| Broche 62 | RF5 — PORTF bit 5 |
| Broche 63 | RF6 — PORTF bit 6 |
| Broche 64 | RF7 — PORTF bit 7 |
Applications typiques
PIC18LF6620-I/PT convient pour 6 applications: Industrial CAN/CANopen Nodes, Automotive Body and HVAC Modules, USB HID Bridge and PC Peripherals, Motor Control and PWM Drives, Data Logging and Sensor Hubs, Consumer Appliance Control Boards.
Industrial CAN/CANopen Nodes
The PIC18LF6620-I/PT is purpose-built for industrial CAN networks because its integrated ECAN module implements CAN 2.0B active at up to 1 Mbps without an external protocol stack. Its 25 MHz CPU and 64 KB Flash comfortably handle CANopen or DeviceNet object dictionaries while leaving room for application code, and the 2.0V-5.5V VDD window lets the same PCB power from 24V bus via a small LDO. Place the MCU next to a 3.3V CAN transceiver such as the MCP2551; the wide 52 GPIO count gives 32+ nodes per board for digital I/O expansion.
Recommandé
Automotive Body and HVAC Modules
Automotive body controllers (BCM, HVAC, instrument cluster nodes) routinely use PIC18F66-family MCUs because the ECAN peripheral maps directly to vehicle CAN buses at 500 kbps. The 64 KB Flash stores body-control firmware including LIN master stacks, seat/mirror logic, and lighting PWM; the 3840-byte SRAM is enough for CAN RX ring buffers plus LIN scheduling. Industrial -40 C to +85 C operation covers cabin and underhood peripherals; for AEC-Q100 qualified automotive builds use the PIC18LF6620-I/PT automotive equivalent (designated by the /VAO or -E suffix).
Recommandé
USB HID Bridge and PC Peripherals
With its 25 MHz CPU, ample Flash, and 52 GPIO, the PIC18LF6620-I/PT acts as a USB Full-Speed HID bridge when paired with an external USB transceiver or the on-chip USART in bit-bang mode. 64 KB Flash holds HID class descriptors, report buffers, and full Microchip USB stack, while the on-chip 10-bit ADC reads up to 12 analog controls. The LF variant's 2.0V minimum VDD lets the same board draw power from USB VBUS (5V) directly through an LDO; designers move to the K40 K-series only when 64 MHz USB throughput is required.
Recommandé
Motor Control and PWM Drives
The PIC18LF6620-I/PT includes four timer modules and PWM channels that can drive small brushed DC, stepper, or BLDC motor front-ends up to 25 kHz switching. Its 10 MIPS throughput closes current control loops faster than legacy 8-bit MCUs and the 64 KB Flash holds field-oriented-control (FOC) libraries or trapezoidal commutation tables. Designers pair it with gate drivers such as the MCP8024 or HIP4086; the 2.0V minimum VDD helps when the motor bus is 3.3V, while industrial temperature covers motor-cabinet deployments.
Recommandé
Data Logging and Sensor Hubs
Industrial sensor modules leverage the PIC18LF6620-I/PT's 10-bit ADC with up to 12 channels to read thermocouples, RTDs, 4-20 mA loops, and digital sensors while using on-chip Flash for calibration tables. The 3840-byte SRAM buffers acquisition windows between ECAN transmissions, and the wide VDD range lets the same hardware run from a 3.6V lithium primary cell. The ECAN module ships acquired data to a master controller at 1 Mbps, replacing legacy 4-20 mA analog loops with deterministic digital telemetry.
Recommandé
Consumer Appliance Control Boards
Washing machines, dishwashers, and HVAC thermostats use PIC18F66-family MCUs because 64 KB Flash holds display, button, and motor-control firmware plus a small RTOS, and the 52 GPIO drive 7-segment displays, keypads, and triac outputs. The 2.0V-5.5V VDD range lets a single design power from 3.3V logic or 5V analog front-ends without redesign. Industrial -40 C to +85 C operation covers oven, refrigerator, and outdoor HVAC installations; migration to the K40 K-series is straightforward when higher CPU performance is needed.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18LF6620-I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC18LF6621-I/PT | PIC18LF6622-I/PT | PIC18LF6680-I/PT | PIC18LF65K40-I/PT | PIC18F6620-I/PT | PIC18LF6525-I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Program Flash | 64 KB | 64 KB | 128 KB | 64 KB | 64 KB | 64 KB | 48 KB |
| Data RAM | 3840 bytes | 4096 bytes | 3840 bytes | 3840 bytes | 1024 bytes | 3840 bytes | 3840 bytes |
| Maximum CPU Clock | 25 MHz (10 MIPS) | 25 MHz (10 MIPS) | 25 MHz (10 MIPS) | 25 MHz (10 MIPS) | 64 MHz (16 MIPS) | 25 MHz (10 MIPS) | 25 MHz (10 MIPS) |
| VDD Range | 2.0V to 5.5V (LF) | 2.0V to 5.5V (LF) | 2.0V to 5.5V (LF) | 2.0V to 5.5V (LF) | 2.0V to 5.5V (LF) | 4.2V to 5.5V (F) | 2.0V to 5.5V (LF) |
| ECAN Module | Yes (1 Mbps) | Yes (1 Mbps) | Yes (1 Mbps) | Yes (1 Mbps) | No | Yes (1 Mbps) | Yes (1 Mbps) |
| I/O Pins | 52 | 52 | 52 | 52 | 55 | 52 | 52 |
| Temperature Grade | -40 C to +85 C (industrial -I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) |
Principaux différenciateurs
- Pin-compatible upgrade with newer K-series core (vs PIC18LF65K40-I/PT)
- Doubling Flash memory without PCB change (vs PIC18LF6622-I/PT)
- Low-power LF prefix for battery designs (vs PIC18F6620-I/PT)
Notes de conception
Place a 100 nF ceramic decoupling capacitor within 5 mm of every VDD/VSS pair, and add a single 10 uF bulk tantalum or ceramic capacitor near the MCU VDD pins. For the LF variant powered from a 3.3V LDO, route the LDO output directly to the MCU's VDD pins before branching to other loads to prevent transient dips that can corrupt Flash programming during ICSP.
Estimated: the PIC18LF6620-I/PT draws about 16 mA active at 25 MHz and 5V VDD, and below 1 uA in nanoWatt sleep mode. Battery-powered designs should use Sleep mode aggressively and wake from INT0 or Timer1 overflow, keeping the ECAN module disabled until a wake-up event is required. AVSS and AVDD pins must both be connected even if the ADC is unused; floating AVSS can cause unpredictable ADC behavior on adjacent channels.
Do not leave the MCLR pin floating. Always use a 10 kohm pull-up to VDD with a 100 nF capacitor to ground for proper Power-On Reset, and ensure ICSP PGC/PGD lines are isolated from analog traces to avoid false programming events. When migrating from PIC18F to PIC18LF silicon, double-check that the VDD minimum is 2.0V and not 4.2V; the F variant will brown-out below 4.0V while the LF variant operates correctly.
Informations de conformité
RoHS compliant per Microchip product page. Industrial -40 C to +85 C grade, not AEC-Q100 qualified - choose automotive-qualified PIC18LF6620 variants for underhood deployments.
