PIC16LF722T-I/SS - 8-Bit MCU, 3.5KB Flash, 20MHz, 28-SSOP | Microchip
料号： PIC16LF722T-I/SS ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.59 | $1.59 |
| 10 | $1.39 | $13.90 |
| 100 | $1.19 | $119.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.93 | $930.00 |
| 2,100 | $0.84 | $1,764.00 |
PIC16LF722T-I/SS 概述
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.
直接替换替代料： PIC16LF722T-I/SS ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16LF722T-I/SS （相同外形与封装尺寸） ——差异在于 Operating Temperature, Package, ADC, Core Architecture, I/O Pins.
快速对比工具——选择替代料号进行并排对比：
PIC16LF722-I/SS
✅ 直接替换✓ 有现货
$1.66 / 个
查看数据手册 →PIC16LF722T-I/SO
✅ 直接替换✓ 有现货
$0.99 / 个
查看数据手册 →PIC16F722T-I/SS
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF722A-E/SS
✅ 直接替换✓ 有现货
$0.68 / 个
查看数据手册 →PIC16LF720T-I/SS
✅ 直接替换✓ 有现货
$1.1 / 个
查看数据手册 →PIC16LF727T-I/SS
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF722T-I/SS 最大额定值与电气特性
| 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) |
| 安装类型 | Surface Mount |
| 工作温度范围 | -40 C to +85 C (Industrial "I") |
| Low-Power Technology | nanoWatt XLP (sleep current < 1 uA typical) |
| Programming/Debug | ICSP and ICD-2 compatible |
| MSL 等级 | MSL3 (JEDEC J-STD-020, 168-hour floor life) |
| RoHS Compliance | Pb-free, RoHS compliant |
PIC16LF722T-I/SS 引脚配置
| 引脚 1 | MCLR/VPP/RE3 — Master clear reset / programming voltage / RE3 (input only) |
| 引脚 2 | RA0/AN0 — Digital I/O / analog input channel 0 |
| 引脚 3 | RA1/AN1 — Digital I/O / analog input channel 1 |
| 引脚 4 | RA2/AN2 — Digital I/O / analog input channel 2 |
| 引脚 5 | RA3/AN3/VREF+ — Digital I/O / analog input / voltage reference plus |
| 引脚 6 | RA4/AN4/T0G — Digital I/O / analog input / Timer0 gate |
| 引脚 7 | RA5/AN5/SS — Digital I/O / analog input / SPI slave select |
| 引脚 8 | VSS — Ground reference |
| 引脚 9 | RA7/OSC1/CLKIN — Digital I/O / oscillator crystal input / external clock in |
| 引脚 10 | RA6/OSC2/CLKOUT — Digital I/O / oscillator crystal output / clock out |
| 引脚 11 | RC0/SOSCO — Digital I/O / Timer1 secondary oscillator output |
| 引脚 12 | RC1/SOSCI — Digital I/O / Timer1 secondary oscillator input |
| 引脚 13 | RC2/CCP1 — Digital I/O / Capture-Compare-PWM channel 1 |
| 引脚 14 | RC3/CCP2 — Digital I/O / Capture-Compare-PWM channel 2 |
| 引脚 15 | RC4/SDA/SDI — Digital I/O / I2C SDA or SPI data input |
| 引脚 16 | RC5/SCL/SCK — Digital I/O / I2C SCL or SPI clock |
| 引脚 17 | RC6/TX/CK — Digital I/O / EUSART transmit or clock |
| 引脚 18 | RC7/RX/DT — Digital I/O / EUSART receive or data |
| 引脚 19 | VSS — Ground reference |
| 引脚 20 | VDD — Positive supply, 1.8-3.6 V |
| 引脚 21 | RB0/INT — Digital I/O / external interrupt |
| 引脚 22 | RB1 — Digital I/O |
| 引脚 23 | RB2 — Digital I/O |
| 引脚 24 | RB3 — Digital I/O |
| 引脚 25 | RB4 — Digital I/O |
| 引脚 26 | RB5 — Digital I/O |
| 引脚 27 | RB6/ICSPCLK — Digital I/O / ICSP clock |
| 引脚 28 | RB7/ICSPDAT — Digital I/O / ICSP data |
典型应用
PIC16LF722T-I/SS 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： PIC16LF722T-I/SS ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Single-cell Li-ion operation with nanoWatt XLP sleep （对比 PIC16F722T-I/SS)
- Doubled Flash budget at same footprint （对比 PIC16LF720T-I/SS)
- Optional larger Flash for firmware headroom （对比 PIC16LF727T-I/SS)
设计说明
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.
合规信息
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.
