PIC18LF8620T-I/PT - 64KB Flash 8-bit MCU, 25MHz, 80-TQFP | Microchip
MPN: PIC18LF8620T-I/PT ✓ AktifPIC18LF8620T-I/PT Ringkasan
Key features include 64KB (32K x 16) of self-programmable Flash, 3840 bytes of SRAM, 1024 bytes of EEPROM, an enhanced 10-bit ADC with up to 16 channels, multiple serial interfaces (USART, I2C, SPI), and Microchip's nanoWatt power management. The 80-pin TQFP footprint exposes 68 general-purpose I/O lines, two capture/compare/PWM modules, and a parallel slave port for external memory expansion, making it well-suited for mixed-signal control applications.
The PIC18LF8620T-I/PT uses Microchip's enhanced Harvard architecture with a 16-bit instruction word and an 8-bit data path, enabling C-friendly operation while preserving deterministic interrupt latency. Its deep peripheral integration reduces BOM count in motor control, instrumentation, and display-driving designs. As the LF variant of the family, it offers the lowest power consumption for battery-backed or portable applications.
Typical applications include industrial automation control panels, HVAC controllers, automotive body electronics, white-goods user-interface boards, and large graphic LCD driving. The 68 I/O count directly supports matrix keypads, segmented character displays, and parallel-port peripherals.
When designing with this device, allocate decoupling capacitors close to all VDD/VSS pairs, follow Microchip's in-circuit serial programming (ICSP) layout rules, and confirm the LF voltage range covers any battery-depleted scenarios. The 'T' suffix denotes Tape & Reel packaging for high-volume assembly.
This page synthesizes distributor pricing, 80-TQFP drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternatif penggantian untuk PIC18LF8620T-I/PT — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian PIC18LF8620T-I/PT (sama faktor bentuk dan footprint) — berbeda di dalam Package, ADC, EEPROM, I/O Pins, Maximum CPU Speed.
PIC18LF8527T-I/PT
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC18LF8722T-I/PT
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
PIC18LF8685T-I/PT
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
PIC18LF8585T-I/PT
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
PIC18LF8722-I/PT
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →PIC18F8722T-I/PT
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
PIC18LF8620T-I/PT Rating Maksimal & Karakteristik Listrik
| Core Architecture | PIC18 (8-bit, enhanced Harvard) |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data Memory (SRAM) | 3840 bytes |
| EEPROM | 1024 bytes |
| Maximum CPU Speed | 25 MHz (10 MIPS) |
| Operating Voltage Range | 2.0 V to 5.5 V (LF family) |
| I/O Pins | 68 |
| Paket | 80-pin TQFP (12 x 12 mm) |
| Suhu Kerja | -40C to +85C (Industrial) |
| Tipe Mounting | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| Peripherals | USART, I2C, SPI, CCP, Parallel Slave Port |
| Status RoHS | Compliant |
| Lead-Free | Yes |
Konfigurasi Pin PIC18LF8620T-I/PT
| Pin produk 1 | MCLR — Master Clear (reset) input, active-low |
| Pin produk 2 | RA0 — PORTA bit 0 / analog AN0 |
| Pin produk 3 | RA1 — PORTA bit 1 / analog AN1 |
| Pin produk 4 | RA2 — PORTA bit 2 / analog AN2 |
| Pin produk 5 | RA3 — PORTA bit 3 / analog AN3 / VREF+ |
| Pin produk 6 | RA4 — PORTA bit 4 / analog AN4 |
| Pin produk 7 | RA5 — PORTA bit 5 / analog AN5 / VREF- |
| Pin produk 8 | RA6 — PORTA bit 6 / oscillator |
| Pin produk 9 | RA7 — PORTA bit 7 / oscillator |
| Pin produk 10 | VDD — Positive supply |
| Pin produk 11 | VSS — Ground |
| Pin produk 12 | RB0 — PORTB bit 0 / external interrupt |
| Pin produk 13 | RB1 — PORTB bit 1 |
| Pin produk 14 | RB2 — PORTB bit 2 |
| Pin produk 15 | RB3 — PORTB bit 3 |
| Pin produk 16 | RB4 — PORTB bit 4 |
| Pin produk 17 | RB5 — PORTB bit 5 / ICSP data |
| Pin produk 18 | RB6 — PORTB bit 6 / ICSP clock |
| Pin produk 19 | RB7 — PORTB bit 7 |
| Pin produk 20 | VDD — Positive supply |
| Pin produk 21 | VSS — Ground |
| Pin produk 22 | RC0 — PORTC bit 0 |
| Pin produk 23 | RC1 — PORTC bit 1 / CCP2 |
| Pin produk 24 | RC2 — PORTC bit 2 / CCP1 |
| Pin produk 25 | RC3 — PORTC bit 3 / SCL |
| Pin produk 26 | RC4 — PORTC bit 4 / SDA |
| Pin produk 27 | RC5 — PORTC bit 5 / SDO |
| Pin produk 28 | RC6 — PORTC bit 6 / TX |
| Pin produk 29 | RC7 — PORTC bit 7 / RX |
| Pin produk 30 | VDD — Positive supply |
| Pin produk 31 | VSS — Ground |
| Pin produk 32 | RD0 — PORTD bit 0 / PSP data |
| Pin produk 33 | RD1 — PORTD bit 1 / PSP data |
| Pin produk 34 | RD2 — PORTD bit 2 / PSP data |
| Pin produk 35 | RD3 — PORTD bit 3 / PSP data |
| Pin produk 36 | RD4 — PORTD bit 4 / PSP data |
| Pin produk 37 | RD5 — PORTD bit 5 / PSP data |
| Pin produk 38 | RD6 — PORTD bit 6 / PSP data |
| Pin produk 39 | RD7 — PORTD bit 7 / PSP data |
| Pin produk 40 | VSS — Ground |
| Pin produk 41 | RE0 — PORTE bit 0 / RD control |
| Pin produk 42 | RE1 — PORTE bit 1 / WR control |
| Pin produk 43 | RE2 — PORTE bit 2 / CS control |
| Pin produk 44 | RE3 — PORTE bit 3 |
| Pin produk 45 | RE4 — PORTE bit 4 |
| Pin produk 46 | RE5 — PORTE bit 5 |
| Pin produk 47 | RE6 — PORTE bit 6 |
| Pin produk 48 | RE7 — PORTE bit 7 |
| Pin produk 49 | VDD — Positive supply |
| Pin produk 50 | VSS — Ground |
| Pin produk 51 | RF0 — PORTF bit 0 |
| Pin produk 52 | RF1 — PORTF bit 1 / analog AN6 |
| Pin produk 53 | RF2 — PORTF bit 2 / analog AN7 |
| Pin produk 54 | RF3 — PORTF bit 3 / analog AN8 |
| Pin produk 55 | RF4 — PORTF bit 4 / analog AN9 |
| Pin produk 56 | RF5 — PORTF bit 5 / analog AN10 |
| Pin produk 57 | RF6 — PORTF bit 6 / analog AN11 |
| Pin produk 58 | RF7 — PORTF bit 7 |
| Pin produk 59 | VDD — Positive supply |
| Pin produk 60 | VSS — Ground |
| Pin produk 61 | RG0 — PORTG bit 0 |
| Pin produk 62 | RG1 — PORTG bit 1 |
| Pin produk 63 | RG2 — PORTG bit 2 |
| Pin produk 64 | RG3 — PORTG bit 3 |
| Pin produk 65 | RG4 — PORTG bit 4 |
| Pin produk 66 | RG5 — PORTG bit 5 |
| Pin produk 67 | RG6 — PORTG bit 6 |
| Pin produk 68 | RG7 — PORTG bit 7 |
| Pin produk 69 | AVDD — Analog positive supply |
| Pin produk 70 | AVSS — Analog ground |
| Pin produk 71 | NC — Not connected (per datasheet) |
| Pin produk 72 | NC — Not connected (per datasheet) |
| Pin produk 73 | OSC1 — Oscillator input |
| Pin produk 74 | OSC2 — Oscillator output |
| Pin produk 75 | VDD — Positive supply |
| Pin produk 76 | VSS — Ground |
| Pin produk 77 | NC — Not connected (per datasheet) |
| Pin produk 78 | NC — Not connected (per datasheet) |
| Pin produk 79 | NC — Not connected (per datasheet) |
| Pin produk 80 | NC — Not connected (per datasheet) |
Aplikasi Umum
PIC18LF8620T-I/PT cocok untuk 6 aplikasis: Industrial Automation Control Panel, HVAC Climate Controller, Automotive Body Electronics Module, White Goods User-Interface Board, Large Graphic LCD / Panel Meter Driver, Battery-Backed Sensor Aggregator.
Industrial Automation Control Panel
The PIC18LF8620T-I/PT fits industrial control panels because its 68 I/O pins directly drive matrix keypads, segmented character LCDs, relay banks, and indicator LEDs without external glue logic. The 64 KB Flash accommodates a full Modbus RTU or CANopen state machine plus keypad/HMI libraries, while the 3840-byte SRAM holds protocol buffers and event queues. Operating from 2.0-5.5 V lets the panel ride out supply transients on the 24 V industrial bus. Industrial temperature range -40C to +85C and strong ESD performance suit factory-floor enclosures.
Direkomendasikan
HVAC Climate Controller
The PIC18LF8620T-I/PT's 10 MIPS throughput and 68 I/O make it well suited for HVAC climate controllers that read multiple NTC thermistors via the 10-bit ADC, drive triac outputs for compressor and fan stages, and sweep an alphanumeric LCD for user feedback. The 64 KB Flash is sufficient for fuzzy-logic and PID control loops with on-screen configuration menus, while 3840 bytes of SRAM handles setpoint schedules and diagnostic logs. The LF 2.0-5.5 V range supports 3.3 V-backed thermostat designs that must keep RTC alive during power dips.
Direkomendasikan
Automotive Body Electronics Module
The PIC18LF8620T-I/PT is used in body-electronics modules such as central locking, seat-position memory, mirror-fold, and lighting controllers. Its 68 I/O directly multiplex wiper, turn-signal, and courtesy-lamp drivers; the 16-channel 10-bit ADC reads switches and battery sense; and 64 KB Flash fits LIN-stack plus body-control state machines. Note the 'LF' variant is rated -40C to +85C industrial, so for under-hood AEC-Q100 applications choose PIC18F8620-I/PT automotive-grade parts instead.
Direkomendasikan
White Goods User-Interface Board
The PIC18LF8620T-I/PT drives washing-machine, dishwasher, and oven user-interface boards where a single MCU must scan a 7x7 capacitive keypad, refresh a 14-segment vacuum-fluorescent display, and supervise motor-driver I/O. 64 KB Flash holds appliance-safety firmware (IEC 60730 Class B), 3840 bytes of SRAM buffers cycle data, and 68 I/O eliminates the need for I/O expanders. The 2.0-5.5 V range lets the board share a 3.3 V rail with the wireless/Wi-Fi coprocessor.
Direkomendasikan
Large Graphic LCD / Panel Meter Driver
The PIC18LF8620T-I/PT's parallel slave port and 68 I/O lines are ideal for driving 320x240 graphic LCDs or TFT panels used in panel meters, lab instruments, and point-of-sale terminals. The PSP allows the MCU to offload pixel data from an external memory buffer while the CPU handles user input, gauge calculations, and serial communications. 64 KB Flash accommodates full-frame buffer libraries and the 2.0-5.5 V range supports 3.3 V LCD rails. Industrial temperature grade suits outdoor instrumentation.
Direkomendasikan
Battery-Backed Sensor Aggregator
The PIC18LF8620T-I/PT's LF 2.0 V minimum operation and nanoWatt sleep modes suit battery-backed sensor aggregator nodes that spend most of their time asleep, wake to sample, then transmit over UART or SPI. 64 KB Flash fits OTA bootloader plus application, 3840 bytes SRAM holds compressed sensor frames, and 68 I/O multiplexes SPI sensors, UART radios, and discrete status lines. Running down to 2.0 V lets the cell discharge deeper, increasing service life.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk PIC18LF8620T-I/PT — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | PIC18LF8527T-I/PT | PIC18LF8722T-I/PT | PIC18LF8685T-I/PT | PIC18LF8585T-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-TQFP (12x12 mm) | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same |
| Program Memory (Flash) | 64 KB | 48 KB | 128 KB | 96 KB | 48 KB |
| RAM | 3840 bytes | 3840 bytes | 3840 bytes | 3840 bytes | 3840 bytes |
| Operating Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| I/O Pins | 68 | 68 | 68 | 68 | 68 |
| Maximum CPU Speed | 25 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS |
| USB Peripheral | No | No | Yes (USB 2.0 FS) | No | No |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Diferensiator Kunci
- Highest I/O count in PIC18 LF 80-TQFP family at the LF voltage tier (vsPIC18LF6520T-I/PT)
- LF voltage range supports 3.3 V and battery-backed designs (vsPIC18F8620T-I/PT)
- Cost-effective balance of Flash and RAM for non-USB applications (vsPIC18LF8722T-I/PT)
Catatan Desain
Place a 100 nF decoupling capacitor within 5 mm of every VDD pin and a single 10 uF bulk capacitor near the package. The PIC18LF8620T-I/PT can draw transient currents up to 200 mA on digital edge transitions; bulk capacitance prevents VDD droop that would otherwise corrupt Flash program/erase operations and A/D conversions on the AVdd rail.
Follow Microchip's ICSP layout guidelines: keep the ICSP connector (PGD/PGC/MCLR/VSS) traces short (<50 mm) and isolated from switching signals. Route the 25 MHz oscillator traces symmetrically with ground guard traces and place load capacitors within 5 mm of OSC1/OSC2 to maintain jitter below 50 ps. The 80-TQFP has a center thermal pad that is not internally bonded - it must be soldered to the ground plane for mechanical reliability but does NOT improve thermal dissipation.
Assign analog inputs (RA0-RA5, RF1-RF6) to a contiguous analog block and surround them with an analog ground island tied back to AVss at a single point. Keep switching signals (CCP outputs, oscillator, USART lines) at least 5 mm away from analog traces to minimize digital-coupling noise. Add a 100 nF capacitor on AVdd when the ADC is enabled at full 10-bit resolution across the full LF voltage range.
Do not assume PIC18LF6520T-I/PT (64-TQFP) and PIC18LF8620T-I/PT (80-TQFP) are interchangeable - they share silicon family but differ in pin count and pinout. Always verify the voltage-range designator: 'LF' parts operate down to 2.0 V while 'F' parts require 4.2 V minimum; substituting a 'F' into an 'LF' design can lock the MCU at low battery. Remember the 'T' suffix indicates Tape & Reel - a tray (-I/PT without T) will not feed pick-and-place.
Informasi Konformitas
RoHS and REACH compliant per Microchip PIC18F8620 family datasheet DS39646K. Industrial temperature grade -40C to +85C. Not AEC-Q100 qualified; for automotive applications choose AEC-Q100-qualified PIC18F8620 automotive variants instead.