PIC16LF722T-I/SS - 8-Bit MCU, 3.5KB Flash, 20MHz, 28-SSOP | Microchip
MPN: PIC16LF722T-I/SS ✓ Hoạt độngPIC16LF722T-I/SS Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip processor with an 8-bit data path, integrated program memory, RAM, and peripherals, intended for embedded control tasks such as sensor reading, user I/O handling, and protocol bridging. The PIC16LF722 belongs to the broader PIC16 family (16-bit instruction word, 8-bit data bus) which sits inside Microchip's "MCU" category above simple digital logic and below 16/32-bit microcontrollers and DSPs. The "LF" prefix denotes the low-voltage variant optimized for battery-powered systems; the "T" suffix marks the tape-and-reel packaging option; "I" indicates the industrial -40C to +85C temperature grade; and "/SS" specifies the 28-pin SSOP SMT footprint.
Key features include an internal 16 MHz high-speed oscillator (with PLL options reach the LF series 20 MHz fOSC max), a configurable 8/16-bit Timer0, a 16-bit Timer1, an enhanced USART, MSSP for SPI/I2C, a 10-/12-bit ADC with computation, up to 25 mA source/sink on I/O pins, and nanoWatt XLP technology that delivers sleep currents below 1 uA for battery-backed sensor and remote-control applications. Code protection, a configurable Watchdog Timer, In-Circuit Serial Programming (ICSP) and In-Circuit Debug (ICD) round out the typical PIC mid-range feature set.
Typical applications include battery-powered sensor nodes, low-energy remote keyless entry, consumer appliances, white-goods user interfaces, low-cost motor control signal conditioning, and general-purpose 8-bit glue logic replacement. The device is also widely used in educational and hobby platforms due to its simple toolchain and abundant example code.
When designing with this MCU, ensure the MCLR reset circuitry uses a 10-50 kohm pull-up to VDD and that decoupling capacitors (100 nF plus 1-10 uF bulk) sit within 5 mm of VDD/VSS. The LF 1.8V-3.6V range lets designers standardize on a single-cell Li-ion or two-AA supply, but the 20 MHz fOSC ceiling means timing-critical loops must respect the 200 ns instruction cycle budget at full speed.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF722T-I/SS — 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 PIC16LF722T-I/SS (cùng hình factor và footprint) — khác nhau ở Operating Temperature, Package, ADC, Core Architecture, I/O Pins.
PIC16LF722-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF722T-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F722T-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF722A-E/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF720T-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF727T-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF722T-I/SS Tỷ lệ tối đa & tính chất điện
| Core Architecture | Enhanced Mid-Range PIC16 (8-bit data, 14-bit instruction) |
| Program Memory (Flash) | 3.5 KB (2048 x 14) |
| Data RAM | 128 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Clock | 20 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | Up to 25 |
| Timers | Timer0 (8/16-bit), Timer1 (16-bit), WDT, secondary Timer2 |
| Communication Peripherals | EUSART, MSSP (SPI / I2C) |
| ADC | Up to 12 channels, 10-bit / 12-bit selectable |
| Instruction Set | 35 instructions, 14-bit opcode |
| Package Type | 28-pin SSOP (5.30 mm body) |
| Kiểu lắp đặt | Surface Mount |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial "I") |
| Low-Power Technology | nanoWatt XLP (sleep current < 1 uA typical) |
| Programming/Debug | ICSP and ICD-2 compatible |
| Cấp MSL | MSL3 (JEDEC J-STD-020, 168-hour floor life) |
| RoHS Compliance | Pb-free, RoHS compliant |
Cấu hình chân PIC16LF722T-I/SS
| Chân 1 | MCLR/VPP/RE3 — Master clear reset / programming voltage / RE3 (input only) |
| Chân 2 | RA0/AN0 — Digital I/O / analog input channel 0 |
| Chân 3 | RA1/AN1 — Digital I/O / analog input channel 1 |
| Chân 4 | RA2/AN2 — Digital I/O / analog input channel 2 |
| Chân 5 | RA3/AN3/VREF+ — Digital I/O / analog input / voltage reference plus |
| Chân 6 | RA4/AN4/T0G — Digital I/O / analog input / Timer0 gate |
| Chân 7 | RA5/AN5/SS — Digital I/O / analog input / SPI slave select |
| Chân 8 | VSS — Ground reference |
| Chân 9 | RA7/OSC1/CLKIN — Digital I/O / oscillator crystal input / external clock in |
| Chân 10 | RA6/OSC2/CLKOUT — Digital I/O / oscillator crystal output / clock out |
| Chân 11 | RC0/SOSCO — Digital I/O / Timer1 secondary oscillator output |
| Chân 12 | RC1/SOSCI — Digital I/O / Timer1 secondary oscillator input |
| Chân 13 | RC2/CCP1 — Digital I/O / Capture-Compare-PWM channel 1 |
| Chân 14 | RC3/CCP2 — Digital I/O / Capture-Compare-PWM channel 2 |
| Chân 15 | RC4/SDA/SDI — Digital I/O / I2C SDA or SPI data input |
| Chân 16 | RC5/SCL/SCK — Digital I/O / I2C SCL or SPI clock |
| Chân 17 | RC6/TX/CK — Digital I/O / EUSART transmit or clock |
| Chân 18 | RC7/RX/DT — Digital I/O / EUSART receive or data |
| Chân 19 | VSS — Ground reference |
| Chân 20 | VDD — Positive supply, 1.8-3.6 V |
| Chân 21 | RB0/INT — Digital I/O / external interrupt |
| Chân 22 | RB1 — Digital I/O |
| Chân 23 | RB2 — Digital I/O |
| Chân 24 | RB3 — Digital I/O |
| Chân 25 | RB4 — Digital I/O |
| Chân 26 | RB5 — Digital I/O |
| Chân 27 | RB6/ICSPCLK — Digital I/O / ICSP clock |
| Chân 28 | RB7/ICSPDAT — Digital I/O / ICSP data |
Ứng dụng tiêu biểu
PIC16LF722T-I/SS phù hợp cho 6 Áp dụngs: Battery-Powered Sensor Node, Remote Keyless Entry (RKE) / Remote Control, White-Goods User Interface Board, Low-Cost Brushless-DC Fan / Pump Control, Consumer Appliance Smart Sensor, Educational / Hobby Development Platform.
Battery-Powered Sensor Node
The PIC16LF722T-I/SS fits battery-powered sensor nodes because its nanoWatt XLP technology delivers typical sleep currents below 1 uA and supports VDD from 1.8 V-3.6 V on a single-cell Li-ion or 2x AA source. With 3.5 KB Flash and 128 B RAM, designers can implement periodic wake-measure-transmit firmware without external memory. The internal 16 MHz HFINTOSC eliminates the need for an external crystal for sleep-and-wake protocols like SHT1x or SPI sensor polling. Placed with a 100 nF + 1 uF bulk decoupling network within 5 mm of VDD, the part can sustain years of operation on a single CR2032 coin-cell at 1% duty cycle.
Được đề xuất
Remote Keyless Entry (RKE) / Remote Control
In RKE and remote-control devices, the PIC16LF722T-I/SS serves as the central controller that wakes on a GPIO interrupt, sequences a 433/315 MHz OOK or FSK transmit via the EUSART or MSSP, and returns to sleep within a few milliseconds. The 1.8 V VDD minimum aligns with common 3 V CR2032 coin cells, while the 14-bit instructions and 35-instruction set keep the wakeup-to-transmit latency inside ~100 us. Compared with the non-LF PIC16F722, this LF variant maintains regulated behavior as the cell drops toward 1.9 V at end of life, extending usable transmit time. Engineers typically pair this MCU with a SAW resonator or fractional-N RF transmitter IC.
Được đề xuất
White-Goods User Interface Board
For washing machines, dishwashers, and microwave user-interface boards, the PIC16LF722T-I/SS drives 7-segment or matrix displays, scans keypads, and interfaces with the appliance main MCU via UART or I2C. The 25 GPIO pins comfortably multiplex seven-segment LED drivers and 4x4 key matrices, while the on-chip 10/12-bit ADC reads NTC temperature sensors with sufficient resolution for dry-boil or door-ajar detection. The industrial -40 C to +85 C temperature grade supports hot-appliance enclosures without derating. Internal HFINTOSC removes crystal cost and simplifies EMC layout when paired with good decoupling.
Được đề xuất
Low-Cost Brushless-DC Fan / Pump Control
In small brushless-DC fans and pumps, the PIC16LF722T-I/SS runs the trapezoidal commutation loop, generates PWM for the gate driver via the secondary Timer2 module, and reads BEMF feedback through the on-chip ADC. The 20 MHz instruction clock provides a 50 us electrical-cycle update at 20 kHz PWM frequency, satisfying most 4-pole BLDC applications. The LF 1.8 V minimum and nanoWatt XLP sleep make the part attractive for battery-equipped portable fans. Designers typically complement the MCU with a small MOSFET gate driver such as the MCP1416 or TC4427.
Được đề xuất
Consumer Appliance Smart Sensor
Smart home / consumer appliances increasingly embed a low-cost MCU for vibration, tilt, or motion post-processing, and the PIC16LF722T-I/SS is well matched: 1.8-3.6 V support accepts single-cell Li-Po packs, the 14-bit PIC16 instruction set accelerates FFT/Goertzel-style vibration analysis, and 128 B RAM holds sufficient running buffers for sliding-window algorithms. The MSSP block handles I2C communication with external accelerometer or temperature sensors, while the EUSART bridges to a BLE module for wireless telemetry. The industrial temperature range meets appliance indoor environments without re-spec.
Được đề xuất
Educational / Hobby Development Platform
The PIC16LF722T-I/SS is also a popular choice for starter-development boards and university curricula. With 3.5 KB Flash there is room for sample projects on ADC, I2C, SPI, PWM, and USART, while in-circuit debugging (ICD) and ICSP let students flash and step through code on the same headers. The SSOP-28 footprint drives a low-cost 28-pin breakout PCB with a 0.65 mm-pitch SO-strip adapter. The PIC16 instruction set is well documented and has an extensive library of open-source examples, which accelerates learning compared with 32-bit controllers.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF722T-I/SS — 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 | PIC16LF722-I/SS | PIC16LF722T-I/SO | PIC16F722T-I/SS | PIC16LF722A-E/SS | PIC16LF720T-I/SS | PIC16LF727T-I/SS |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-28 (5.30 mm) | SSOP-28 (5.30 mm) - same | SOIC-28 (7.50 mm) - same die, larger body | SSOP-28 (5.30 mm) - same | SSOP-28 (5.30 mm) - same | SSOP-28 (5.30 mm) - same | SSOP-28 (5.30 mm) - same |
| Program Memory (Flash) | 3.5 KB (2K x 14) | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 1.75 KB (-50%) | 7 KB (+100%) |
| Operating Voltage | 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 | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Maximum CPU Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Data RAM | 128 bytes | 128 B | 128 B | 128 B | 128 B | 128 B | 384 B (+200%) |
| Temperature Grade | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Extended -40 C to +125 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C |
Bảo phân biệt quan trọng
- Single-cell Li-ion operation with nanoWatt XLP sleep (vsPIC16F722T-I/SS)
- Doubled Flash budget at same footprint (vsPIC16LF720T-I/SS)
- Optional larger Flash for firmware headroom (vsPIC16LF727T-I/SS)
Ghi chú thiết kế
Estimated: run the MCU off an MCP1700-3302E LDO (or direct Li-ion/2xAA) at VDD = 2.4-3.6 V. Decoupling requirements: 100 nF X7R within 3 mm of each VDD pin and a shared 1-10 uF bulk cap on the same VDD trace. Total budget for nanoWatt XLP sleep mode: typically <1 uA at 25 C (per datasheet), so always populate a low-Iq regulator to preserve battery life.
Place ICSP test points on the same PCB edge for ICSP and ICD access (RB6/RB7 plus MCLR must reach a 6-pin header). Use a 10-50 kohm pull-up on MCLR (pin 1) with a 100 nF decoupling capacitor. Keep the crystal traces (RA6/RA7) short - under 5 mm - and surround them with a continuous ground pour to reduce EMI on oscillator harmonics.
Do not exceed the absolute maximum VDD of 3.6 V; the LF series does NOT tolerate 5 V, unlike the PIC16F722 part. Always verify the BOR (Brown-Out Reset) trip points for your application voltage range to prevent runaway code when the battery dips below 1.8 V. When migrating a PIC16F722 design to PIC16LF722, recheck any code paths that depend on VDD above 3.6 V or rely on internal reference accuracy outside the LF band.
Thông tin tuân thủ
RoHS-compliant per Microchip product page. Industrial temperature grade (-40 to +85 C) only; AEC-Q100 qualification is NOT applicable - choose automotive-grade variants or PIC16LF722-E family members for harsh environments.
