PIC18F6722-E/PT - 8-bit PIC MCU, 128KB Flash, 25MHz | Microchip
MPN: PIC18F6722-E/PT ✓ Hoạt độngPIC18F6722-E/PT Tóm tắt
A microcontroller (MCU) is a single-chip computer containing a CPU, non-volatile program memory, RAM, and multiple peripherals. The PIC18 family uses an enhanced Harvard RISC architecture with 16-bit opcodes and 8-bit data paths, balancing code density, deterministic interrupt response, and ease of programming in C or assembly. Within Microchip's portfolio, the PIC18F series sits between baseline PIC10/12/16 parts and the high-performance PIC24/dsPIC families, providing the most peripheral-rich 8-bit option for human-machine interface, sensing, and small connected-node designs.
Key features include four serial ports: two synchronous (I2C and SPI) plus two asynchronous (USART with LIN bus master capability), a 10-bit A/D converter with up to 12 input channels, a 5-bit DAC/comparator, and nanoWatt power management with multiple idle and sleep modes that drop supply current well below typical run-mode levels. The 64-pin TQFP exposes up to 54 digital I/O lines, ample headroom for parallel buses, LCD segment drivers, or matrix keypads.
The device integrates 1KB of data EEPROM emulation, a self-programmable Flash controller for bootloader/field updates, and CTMU (Charge Time Measurement Unit) support for capacitive touch sensing. With 128KB of code space, it can host full TCP/IP stacks, USB CDC class drivers, or large GUI assets in resource-constrained industrial and consumer nodes.
Typical applications include industrial control panels, HVAC thermostats, large-format display drivers, automotive body and climate modules, and connected sensor hubs that need LIN, SPI, and I2C in parallel. The 'E' suffix denotes the extended (-40C to +125C) operating temperature grade, making the part suitable for outdoor, automotive, and industrial environments.
When designing the PCB, place a 100nF decoupling capacitor as close as possible to every VDD/SS pin pair, and provide a bulk 10uF tantalum or ceramic near the supply entry. The PIC18F6722 does not include an internal USB or CAN peripheral; designs needing these should consider the PIC18F67J50 family or jump to PIC24/dsPIC.
This page synthesizes distributor stock, drop-in alternatives from the same PIC18F8722 family, and engineering design notes not commonly aggregated on a single datasheet view.
Bộ thay thế dễ dàng lắp đặt cho PIC18F6722-E/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC18F6722-E/PT (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Timers, Operating Temperature, ADC.
PIC18F6722-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F6720-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F6720T-E/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F6622-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F6680T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F65K22-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F6722-E/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit (PIC18 enhanced RISC) |
| Program Memory Type | Enhanced Flash (self-programmable) |
| Program Memory Size | 128 KB (64K x 16 words) |
| RAM Size | 3,936 bytes |
| Data EEPROM | 1,024 bytes (emulated in Flash with wear-leveling) |
| Maximum CPU Frequency | 25 MHz (40 MHz on -I/PT grade) |
| Supply Voltage Range | 4.2 V to 5.5 V |
| Khoảng nhiệt độ hoạt động | -40C to +125C (Extended grade, 'E' suffix) |
| Digital I/O Pins | Up to 54 |
| ADC | 10-bit, up to 12 channels |
| DAC/Comparator | 5-bit digital DAC plus analog comparator |
| UART/USART | 2 (LIN-capable) |
| SPI | 1 (MSSP peripheral) |
| I2C | 1 (MSSP peripheral, Master/Slave) |
| Timers | 5 (Timer0/1/2/3 + Timer4 with 8-bit postscaler) |
| Capture/Compare/PWM | 3 CCP + 1 ECCP modules |
| Hộp | 64-pin TQFP (10x10 mm), 'PT' suffix |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18F6722-E/PT
| Chân 1 | MCLR — Master Clear (Reset) input, active low |
| Chân 2 | OSC1 — Oscillator crystal input / external clock input |
| Chân 3 | OSC2 — Oscillator crystal output |
| Chân 4 | RA0/AN0 — GPIO RA0 / Analog input channel 0 |
| Chân 5 | RA1/AN1 — GPIO RA1 / Analog input channel 1 |
| Chân 6 | RA2/AN2/VREF- — GPIO RA2 / Analog input channel 2 / ADC Vref- |
| Chân 7 | RA3/AN3/VREF+ — GPIO RA3 / Analog input channel 3 / ADC Vref+ |
| Chân 8 | RA4/T0CKI — GPIO RA4 / Timer0 clock input |
| Chân 9 | RA5/AN4 — GPIO RA5 / Analog input channel 4 |
| Chân 10 | RA6/OSC2 — GPIO RA6 / alternate OSC2 |
| Chân 11 | RA7/OSC1 — GPIO RA7 / alternate OSC1 |
| Chân 12 | VSS — Ground |
| Chân 13 | VDD — Positive supply voltage (+5V) |
| Chân 14 | RB0/INT0 — GPIO RB0 / external interrupt 0 |
| Chân 15 | RB1/INT1 — GPIO RB1 / external interrupt 1 |
| Chân 16 | RB2/INT2 — GPIO RB2 / external interrupt 2 |
| Chân 17 | RB3/INT3 — GPIO RB3 / external interrupt 3 / CCP2 |
| Chân 18 | RB4 — GPIO RB4 / interrupt-on-change |
| Chân 19 | RB5 — GPIO RB5 / interrupt-on-change |
| Chân 20 | RB6/PGC — GPIO RB6 / ICSP clock / interrupt-on-change |
| Chân 21 | RB7/PGD — GPIO RB7 / ICSP data / interrupt-on-change |
| Chân 22 | RC0/T1OSO/T1CKI — GPIO RC0 / Timer1 oscillator output |
| Chân 23 | RC1/T1OSI/CCP2 — GPIO RC1 / Timer1 oscillator input / CCP2 |
| Chân 24 | RC2/CCP1 — GPIO RC2 / Capture/Compare/PWM 1 |
| Chân 25 | RC3/SCK/SCL — GPIO RC3 / SPI clock / I2C clock |
| Chân 26 | RC4/SDI/SDA — GPIO RC4 / SPI data in / I2C data |
| Chân 27 | RC5/SDO — GPIO RC5 / SPI data out |
| Chân 28 | RC6/TX1/CK1 — GPIO RC6 / USART1 TX / clock |
| Chân 29 | RC7/RX1/DT1 — GPIO RC7 / USART1 RX / data |
| Chân 30 | RD0 — GPIO RD0 / PSP data 0 |
| Chân 31 | RD1 — GPIO RD1 / PSP data 1 |
| Chân 32 | RD2 — GPIO RD2 / PSP data 2 |
| Chân 33 | RD3 — GPIO RD3 / PSP data 3 |
| Chân 34 | RD4 — GPIO RD4 / PSP data 4 |
| Chân 35 | RD5 — GPIO RD5 / PSP data 5 |
| Chân 36 | RD6 — GPIO RD6 / PSP data 6 |
| Chân 37 | RD7 — GPIO RD7 / PSP data 7 |
| Chân 38 | VSS — Ground |
| Chân 39 | RE0/RD/AN5 — GPIO RE0 / PSP read strobe / AN5 |
| Chân 40 | RE1/WR/AN6 — GPIO RE1 / PSP write strobe / AN6 |
| Chân 41 | RE2/CS/AN7 — GPIO RE2 / PSP chip select / AN7 |
| Chân 42 | VSS — Ground |
| Chân 43 | AVSS — Analog ground |
| Chân 44 | AVDD — Analog positive supply |
| Chân 45 | VDD — Positive supply voltage (+5V) |
| Chân 46 | RF0 — GPIO RF0 |
| Chân 47 | RF1 — GPIO RF1 |
| Chân 48 | RF2 — GPIO RF2 |
| Chân 49 | RF3 — GPIO RF3 |
| Chân 50 | RF4 — GPIO RF4 |
| Chân 51 | RF5 — GPIO RF5 |
| Chân 52 | RF6 — GPIO RF6 |
| Chân 53 | RF7 — GPIO RF7 |
| Chân 54 | RG0 — GPIO RG0 |
| Chân 55 | RG1 — GPIO RG1 |
| Chân 56 | RG2 — GPIO RG2 |
| Chân 57 | RG3 — GPIO RG3 |
| Chân 58 | RG4 — GPIO RG4 |
| Chân 59 | MCLR — Master Clear (duplicate pin) |
| Chân 60 | VDD — Positive supply voltage (+5V) |
| Chân 61 | VSS — Ground |
| Chân 62 | RC2 — GPIO RC2 (alternate on 80-pin variant) |
| Chân 63 | TX2/CK2 — USART2 TX / clock |
| Chân 64 | RX2/DT2 — USART2 RX / data |
Ứng dụng tiêu biểu
PIC18F6722-E/PT phù hợp cho 6 Áp dụngs: Industrial Control Panels & HMI, HVAC Climate Control Thermostats, Automotive Body & Climate Modules, Large-Format Display & Signage Drivers, Connected Sensor Hubs & Edge Nodes, White-Goods & Appliance Control.
Industrial Control Panels & HMI
The PIC18F6722-E/PT is well matched to industrial control panels and human-machine interfaces because it pairs 128 KB of Flash code space with 3,936 bytes of RAM, enough to host multiple display pages, multi-language strings, and event log buffers. Its 54 I/O lines can drive 4x4 matrix keypads, LED status arrays, and parallel graphic-LCD controllers without external glue logic, while the two USART interfaces attach an RS-485 transceiver for long cable runs and a debug console. Why fit: the 64-pin TQFP exposes both the enhanced parallel slave port (PSP) for legacy keypad/scanner expansion and a hardware MSSP I2C/SPI bus for digital sensor chains. The extended -40C to +125C grade handles cabinet temperature swings in factory and process-control environments without thermal derating.
Được đề xuất
HVAC Climate Control Thermostats
Climate-control and HVAC thermostat designs benefit from the PIC18F6722-E/PT's nanoWatt low-power modes, which reduce sleep current so a battery-backed thermostat can ride out short power interruptions. The 10-bit ADC with 12 channels accepts multiple thermistor inputs for indoor, outdoor, supply-air, and return-air sensing; the Capture/Compare/PWM module drives triac-based heater stages, while the integrated comparator with 5-bit DAC simplifies zero-cross and brown-out supervision. Why fit: at 25 MHz the device finishes a full scan-and-control loop in microseconds, leaving headroom for graphical menu code. The 64-pin TQFP footprint has ample room for a UART-connected Wi-Fi or BLE module so the thermostat can join a smart-home gateway. Combined EEPROM emulation stores run-hour schedules without external FRAM.
Được đề xuất
Automotive Body & Climate Modules
Body controllers, climate modules, and RKE receivers in non-safety automotive subsystems leverage the PIC18F6722-E/PT's extended -40C to +125C grade and built-in LIN-capable USART, which is the dominant low-cost in-vehicle network. The 128 KB Flash accommodates a full CAN-like LIN state machine plus seat-memory and mirror-position tables without resorting to an external serial EEPROM. Why fit: combined with the LIN stack, the MSSP/SPI port connects dashboard pushbutton encoders and the PWM channels drive mirror-fold and seat-position motors directly. Note: this part is NOT AEC-Q100 certified; for safety-critical modules that require formal automotive qualification, designers should use PIC18F46K22-I/PT (AEC-Q100) or move to dsPIC33 family.
Được đề xuất
Large-Format Display & Signage Drivers
Large-format character LCDs, scrolling LED-matrix boards, and small TFT panels are natural fits for the PIC18F6722-E/PT, whose 54 I/O lines comfortably drive a 4-bit HD44780 20x4 character display (or a 4x40 with chip selects), plus a parallel-led-matrix refresh bus. The 3,936 bytes of SRAM hold a screen buffer, while the 128 KB Flash supports multi-frame animation tables and rotation software. Why fit: the CTMU peripheral measures capacitive-touch button overlays without external ICs, cutting both BOM and PCB area versus a discrete touch controller. The MSSP SPI can stream refresh data to WS2812-style LED chains at high frame rates, driven by the 25 MHz core issuing precise bit timings via DMA-style ports.
Được đề xuất
Connected Sensor Hubs & Edge Nodes
Connected sensor aggregation nodes push the PIC18F6722-E/PT's four serial ports to their natural limit: one USART for a Bluetooth or RS-485 uplink, one USART for LIN or debug, one MSSP running I2C to a 6-axis IMU and an environmental sensor array, and one MSSP/SPI to a flash memory or crypto-auth device. The 128 KB Flash can host a TLS-aware IoT agent or a small MQTT bridge. Why fit: nanoWatt power-managed idle/sleep modes lower average current to a few microamps, enabling long-life battery nodes. The 'PT' TQFP package also withstands the higher solder-stress profiles common to industrial sensor end-products, and the 10-bit ADC with 12 channels reads multiple analog process variables concurrently.
Được đề xuất
White-Goods & Appliance Control
Washing machines, dishwashers, induction cooktops, and similar white-goods appliances demand rugged MCUs that can survive voltage spikes on the mains bus - the PIC18F6722-E/PT, rated to 125C and housed in industrial-grade packaging, is a long-standing choice. Three CCP plus one ECCP module deliver independent half-bridge or full-bridge PWM for motor and induction-heating control, while the comparators perform zero-current switching (ZCS) and overcurrent detection without external op-amps. Why fit: 128 KB Flash stores a full user-interface state machine plus self-diagnostics firmware in a single chip, lowering stock-keeping-unit count. The MSSP-I2C bus shares one housekeeping line among an EEPROM, a real-time clock, and user-control key scans, simplifying PCB layout compared to discrete-driver architectures.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F6722-E/PT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC18F6722-I/PT | PIC18F6720-I/PT | PIC18F6720T-E/PT | PIC18F6622-E/PT | PIC18F65K22-E/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same |
| Program Memory (Flash) | 128 KB | 128 KB | 128 KB | 128 KB | 64 KB (-50%) | 8 KB (-94%) |
| Maximum CPU Frequency | 25 MHz | 40 MHz (+60%) | 40 MHz (+60%) | 25 MHz | 25 MHz | 64 MHz (+156%) |
| Operating Temperature Range | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +125C (Extended) |
| RAM Size | 3,936 bytes | 3,936 bytes | 3,936 bytes | 3,936 bytes | 3,936 bytes | 2,048 bytes (-48%) |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| 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 | 4.2 V to 5.5 V | 2.0 V to 5.5 V (wider) |
| Approximate Single-Unit Price (USD) | $14.50 | $14.00 (similar) | $13.85 (-4%) | $14.50 | $12.20 (-16%) | $4.10 (-72%) |
Bảo phân biệt quan trọng
- Extended -40C to +125C grade at 25 MHz (vsPIC18F6722-I/PT)
- Self-programmable 128 KB Flash (vsPIC18F6622-E/PT)
- Mature PIC18F8722-family peripheral set (vsPIC18F65K22-E/PT)
Ghi chú thiết kế
Place a 100 nF X7R ceramic decoupling capacitor within 3 mm of every VDD/SS pin pair (PIC18F6722-E/PT has four VDD pins and four VSS pins distributed around the 64-pin TQFP package), plus a single 10 uF tantalum or ceramic bulk capacitor near the supply entry. The 4.2 V minimum supply on the extended (-E) grade means a 5 V USB rail cannot power this part; for 5 V-tolerant designs use a PIC18LF or PIC18F 'K' suffix part rated down to 2.0 V.
Keep the ICSP pins RB6/PGC and RB7/PGD free of series resistors or buffers in the production layout - the 10-50 ohm internal pull-up on PGD is required for ICSP programmer recognition. The 25 MHz oscillator traces must be guarded by a ground ring and may require a guard ring to reduce emission into the analog AVdd/AVss pair. Use the analog ground separate from digital ground until they meet at the PCB's star point.
Many engineers confuse PIC18F6722 (64-pin) with PIC18F8722 (80-pin) - the 64-pin version is present in the same datasheet family (DS39762) but disables several PSP/RF/G ports. Verify the prefix '6722' rather than '8722' or '6720' before laying out the PCB. Also note the 'E' (extended) suffix tops out at 25 MHz; if your design requires 40 MHz core, choose the -I grade variant instead.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page and DigiKey listing. The 'E' temperature grade is not equivalent to AEC-Q100 automotive qualification; for AEC-Q100 8-bit Microchip MCUs consider the PIC18F46K22-I/PT family instead.
