PIC16LF722A-I/MV - 20MHz 8-bit MCU, 3.5KB Flash, 28-UQFN | Microchip
MPN: PIC16LF722A-I/MV ✓ Hoạt độngPIC16LF722A-I/MV Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and a rich set of peripherals onto one silicon die. The PIC16 family uses a 14-bit instruction word and an 8-bit data path, sitting in the hypernym hierarchy of microcontroller -> embedded processor -> semiconductor device. The "LF" sub-family belongs to Microchip's nanoWatt XLP (eXtreme Low Power) tier, specifically engineered for battery-powered and energy-harvesting applications where quiescent current draw in sleep modes is the dominant figure of merit.
Key features include 128 bytes of RAM, 256 bytes of EEPROM, 25 I/O pins, an internal 16MHz oscillator, and an operating voltage range of 1.8V to 3.6V. The 28-UQFN package exposes a thermal pad and supports surface-mount assembly on compact PCBs. The device integrates multiple peripherals commonly needed in mixed-signal embedded designs: ADC, comparators, PWM modules, USART, MSSP (SPI/I2C), and timers.
Typical applications include low-power IoT sensor nodes, battery-powered remote controls, consumer white goods user interfaces, and compact industrial sensor conditioning. The wide 1.8V-3.6V range and XLP sleep modes (down to nA-level current) make it well-suited for products that must run for years on a single coin cell.
A key design consideration is that this device does NOT include an internal LDO; therefore, the supply voltage applied directly powers the digital core. If you need a 5V-capable variant, select the PIC16F722A in the same UQFN-28 package instead. For migrating designs, verify pin compatibility with the specific variant suffix.
This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the bare manufacturer datasheet, giving engineers a one-stop engineering decision resource for the PIC16LF722A-I/MV.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF722A-I/MV — 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 PIC16LF722A-I/MV (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, RoHS Status, Operating Temperature, ADC.
PIC16LF723A-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF722A-E/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F722A-I/MV
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF722AT-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF720-I/MV
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF707-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF722A-I/MV Tỷ lệ tối đa & tính chất điện
| Product Type | 8-bit Microcontroller (MCU) |
| Core Architecture | PIC16 (RISC, 14-bit instruction word) |
| Program Memory | 3.5 KB Flash (2K x 14) |
| Data RAM | 128 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Frequency | 20 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 25 |
| Hộp | 28-UQFN (4x4 mm) |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
| Technology Family | PIC16F/722A/723A |
| Peripherals | ADC, Comparators, PWM, USART, MSSP (SPI/I2C), Timers |
| Internal Oscillator | Yes (16 MHz selectable) |
Cấu hình chân PIC16LF722A-I/MV
| Chân 1 | RA5/AN4/C2IN2-/T1CKI — GPIO RA5 / ADC ch4 / Comparator 2 in- / Timer1 clock |
| Chân 2 | RA4/AN3/C1IN3- — GPIO RA4 / ADC ch3 / Comparator 1 in- |
| Chân 3 | RA3/AN2/C1IN+/VREF+ — GPIO RA3 / ADC ch2 / Comparator 1 in+ / VREF+ |
| Chân 4 | RA2/AN1/C1IN0-/CVREF — GPIO RA2 / ADC ch1 / Comparator 1 in- / CVREF |
| Chân 5 | RA1/AN0/C1IN0+ — GPIO RA1 / ADC ch0 / Comparator 1 in+ |
| Chân 6 | RA0/AN5/ICSPDAT — GPIO RA0 / ADC ch5 / ICSP data |
| Chân 7 | VSS — Ground |
| Chân 8 | VDD — Positive supply voltage |
| Chân 9 | OSC1/CLKI — Crystal oscillator in / external clock in |
| Chân 10 | OSC2/CLKO — Crystal oscillator out / clock out |
| Chân 11 | RC0/T1OSO — GPIO RC0 / Timer1 oscillator output |
| Chân 12 | RC1/T1OSI — GPIO RC1 / Timer1 oscillator input |
| Chân 13 | RC2/P1A/CCP1 — GPIO RC2 / PWM output / CCP1 |
| Chân 14 | RC3/P1B/PGM — GPIO RC3 / PWM output / LVP programming |
| Chân 15 | RC4/SDI/SDA — GPIO RC4 / SPI data in / I2C data |
| Chân 16 | RC5/SDO — GPIO RC5 / SPI data out |
| Chân 17 | RC6/TX/CK — GPIO RC6 / USART TX / USART clock |
| Chân 18 | RC7/RX/DT — GPIO RC7 / USART RX / USART data |
| Chân 19 | RB7/PGM — GPIO RB7 / LVP programming |
| Chân 20 | RB6/PGC — GPIO RB6 / ICSP clock |
| Chân 21 | RB5/AN11 — GPIO RB5 / ADC ch11 |
| Chân 22 | RB4/AN10 — GPIO RB4 / ADC ch10 |
| Chân 23 | RB3/AN9 — GPIO RB3 / ADC ch9 |
| Chân 24 | RB2/AN8 — GPIO RB2 / ADC ch8 |
| Chân 25 | RB1/AN7 — GPIO RB1 / ADC ch7 |
| Chân 26 | RB0/AN6/INT — GPIO RB0 / ADC ch6 / external interrupt |
| Chân 27 | RA7/OSC1 — GPIO RA7 / alternate crystal in |
| Chân 28 | RA6/OSC2 — GPIO RA6 / alternate crystal out |
Ứng dụng tiêu biểu
PIC16LF722A-I/MV phù hợp cho 6 Áp dụngs: Battery-Powered IoT Sensor Nodes, Consumer Remote Controls and HIDs, Industrial Sensor Conditioning, White Goods and Appliance User Interfaces, Portable Medical Monitoring Accessories, Compact Power Tool Motor Control.
Battery-Powered IoT Sensor Nodes
The PIC16LF722A-I/MV's nanoWatt XLP technology and 1.8V-3.6V supply range fit battery-powered IoT sensor nodes that must sleep for years on a coin cell. Its 3.5KB Flash holds typical LoRa/Sigfox/Sub-GHz stack application code plus sensor drivers, while the 25 I/O pins interface multiple analog sensors through the on-chip ADC and comparators. The internal 16MHz oscillator eliminates an external crystal, reducing BOM cost and standby current. The 28-UQFN 4x4mm package drops onto compact sensor PCBs with minimal board area, ideal for wireless sensor modules placed in tight enclosures or behind existing fixtures where every cubic millimetre matters.
Được đề xuất
Consumer Remote Controls and HIDs
The PIC16LF722A-I/MV's low sleep current (nanoWatt XLP) and 1.8V operation make it ideal for consumer remote controls running on a single CR2032 coin cell. Its PWM peripherals drive IR LEDs directly while the 25 I/O matrix-scan a typical 8x8 key matrix with multiple shared lines. The 3.5KB Flash comfortably fits remote control firmware with manufacturer codes, rolling-code encryption, and multi-protocol support. Compared to discrete logic designs, integrating the MCU cuts BOM cost, board area, and quiescent current while adding flexible feature upgrades through firmware revisions.
Được đề xuất
Industrial Sensor Conditioning
The PIC16LF722A-I/MV is well suited for industrial sensor signal conditioning modules that interface analog transducers to digital PLCs or fieldbus gateways. Its on-chip ADC samples strain-gauge, thermocouple, or 4-20mA loop signals at up to the 20MHz CPU clock rate, while the comparators implement threshold detection or window-discriminator functions. The 1.8V-3.6V operating range accommodates 3.3V sensor rails, and the 28-UQFN package plus -40C to +85C industrial temperature grade handle factory-floor thermal environments. The internal 16MHz oscillator eliminates the need for a precision external crystal, simplifying the BOM.
Được đề xuất
White Goods and Appliance User Interfaces
The PIC16LF722A-I/MV drives consumer white-goods user-interface boards where its 25 I/O pins scan key/LED matrices, drive seven-segment displays via PWM, and handle serial communication with the main appliance controller. The 3.5KB Flash stores UI state machines, error-code tables, and beeper profiles, while the 256-byte EEPROM retains user settings (clock, mode preferences) across power cycles. The low 1.8V minimum VDD suits designs that power the UI board from a single 3.3V LDO or directly from rectified mains-derived rails, and the small 28-UQFN package fits behind display overlays.
Được đề xuất
Portable Medical Monitoring Accessories
The PIC16LF722A-I/MV's nanoWatt XLP operation and 1.8V-3.6V supply fit portable medical monitoring accessories such as pulse-oximeter cables, blood-pressure cuffs, and thermometer probes. Its low sleep current extends battery life during idle patient-monitoring periods, while its 20MHz CPU provides responsive real-time signal processing for measurement cycles. The 25 I/O pins interface OLED displays, button panels, and BLE/wired data uplinks. Although not AEC-Q100 qualified, the part is widely used in IEC 60601-compliant accessory designs where its industrial temperature range is sufficient.
Được đề xuất
Compact Power Tool Motor Control
The PIC16LF722A-I/MV handles compact brushed-DC motor control for low-voltage power tools such as cordless screwdrivers, glue guns, and handheld vacuums. Its PWM modules generate the variable-duty drive signals, while the on-chip comparators implement overcurrent protection by monitoring shunt voltages directly. The 1.8V-3.6V range allows direct Li-ion battery operation with a single-cell stack, and the 20MHz CPU rate supports field-oriented or back-EMF sensing algorithms. The 28-UQFN 4x4mm footprint tucks into tool handles or battery-pack compartments where space is constrained.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF722A-I/MV — 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 | PIC16LF723A-I/MV | PIC16LF722A-E/MV | PIC16F722A-I/MV | PIC16LF720-I/MV | PIC16LF707-I/MV |
|---|---|---|---|---|---|---|
| Package | 28-UQFN (4x4) | 28-UQFN (4x4) - same | 28-UQFN (4x4) - same | 28-UQFN (4x4) - same | 28-UQFN (4x4) - same | 28-UQFN (4x4) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 3.5 KB | 7 KB | 3.5 KB | 3.5 KB | 0.875 KB | 14 KB |
| Data RAM | 128 bytes | 256 bytes | 128 bytes | 128 bytes | 64 bytes | 512 bytes |
| Operating Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.0 V to 5.5 V (with internal LDO) | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Temperature Grade | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Internal LDO Regulator | No (LF variant, direct VDD) | No (LF variant) | No (LF variant) | Yes (F variant, requires VCAP cap) | No (LF variant) | No (LF variant) |
| I/O Pins | 25 | 25 | 25 | 25 | 25 | 25 |
Bảo phân biệt quan trọng
- Low-voltage LF variant without internal LDO (vsPIC16F722A-I/MV)
- Larger Flash than PIC16LF720 in same package (vsPIC16LF720-I/MV)
- nanoWatt XLP technology for battery designs (vsPIC16LF707-I/MV)
Ghi chú thiết kế
The PIC16LF722A-I/MV requires a 0.1uF decoupling capacitor placed within 5mm of the VDD pin and a bulk 1-10uF tantalum or ceramic capacitor on the same rail. Since this is the LF variant without an internal LDO, VDD directly powers the core; ensure the supply stays within 1.8V-3.6V under all transient load conditions. For battery-powered designs, place a small ferrite bead between the battery and the MCU VDD to suppress load-dump transients.
The 28-UQFN 4x4mm package has an exposed thermal pad that MUST be soldered to a copper pour on the PCB to meet thermal and electrical performance. Use at least a 10x10mm copper pour on the top layer connected by multiple thermal vias (0.3mm drill, 0.5mm pad) to a bottom-layer copper plane. The pad is also the primary electrical ground reference; failing to solder it degrades both thermal dissipation and EMI performance. Although MCU power dissipation is typically <50mW in normal operation, the exposed pad is essential for long-term reliability.
Do NOT select the PIC16LF722A-I/MV (LF variant) for designs that operate from 5V rails - this variant lacks an internal LDO regulator and is rated only to 3.6V maximum. Use the PIC16F722A-I/MV instead, which includes the internal 5V regulator but requires a 0.1uF external stabilization capacitor on the VCAP pin. Also, the 'I' suffix means industrial temperature (-40C to +85C); if you need automotive or extended temperature, select the 'E' suffix variant.
Route the ICSPDAT/PGC programming pins (typically RA0/RA6 or dedicated RB6/RB7) to test points or a programming header for in-circuit serial programming. According to Microchip's PIC16 programming documentation, the MCLR pin must be pulled high through a 10k resistor for normal operation and can be pulled low to reset the device. Reserve a small prototype area for programming/debug header access; this is much easier to add at PCB layout time than to rework later.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Industrial temperature grade -40C to +85C. Not AEC-Q100 qualified; for automotive applications, contact Microchip for Q-graded part numbers.
