PIC16LF722-E/SO - 8-bit XLP MCU, 3.5KB Flash, 28-SOIC | Microchip
料号： PIC16LF722-E/SO ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.62 | $16.20 |
| 100 | $1.32 | $132.00 |
| 500 | $1.1 | $550.00 |
| 1,000 | $0.95 | $950.00 |
| 3,000 | $0.78 | $2,340.00 |
PIC16LF722-E/SO 概述
An 8-bit microcontroller (MCU) is a programmable single-chip computer that integrates a CPU, RAM, non-volatile program memory (Flash), and peripherals onto one silicon die. Within the broader taxonomy, this PIC16LF722 belongs to the Microchip PIC16 mid-range family -> PIC16F family -> 8-bit MCU -> microcontroller -> semiconductor. The 'LF' prefix denotes the low-voltage (1.8V-3.6V) variant while the 'F' family uses the standard mid-range 14-bit instruction set. MCUs are fundamental building blocks of embedded systems, executing firmware that reads sensors, drives actuators, and exchanges data with other ICs.
Key features of the PIC16LF722-E/SO include nanoWatt XLP technology for ultra-low sleep currents (typical 20 nA in sleep with WDT disabled), one 8-bit and one 16-bit timer, a 10-bit ADC with up to 11 input channels, an enhanced USART, an ECCP module for motor/lighting control, and an internal oscillator with software-tunable frequency. The integrated ADC eliminates external signal-conditioning components, while the ECCP module reduces BOM cost for brushed DC motor or power-MOSFET drive applications.
The LF process node enables typical run current below 200 uA/MHz and sleep current down to 20 nA, making the part well suited to battery-powered IoT, sensor, and remote-control products. The device's instruction cycle equals one quarter of the oscillator frequency, so a 20 MHz crystal yields a 5 MIPS instruction throughput. Programming is supported through Microchip's ICSP (In-Circuit Serial Programming) interface and the MPLAB X IDE toolchain.
Typical applications include consumer electronics remote controls, low-power sensor nodes, battery chargers, small appliance controls, and hobby/educational embedded platforms. The 28-pin SOIC footprint is friendly to hand-soldering and breadboard adapters, simplifying prototyping.
A critical design consideration is decoupling: place a 100 nF ceramic capacitor between VDD and VSS within 5 mm of the IC, plus a bulk 1 uF to 10 uF capacitor on the power rail. The MCLR reset pin should be pulled high through a 10 kohm resistor for normal operation, or tied directly to VDD if unused.
This page synthesizes verified distributor pricing, drop-in same-package alternatives from the PIC16F/LF family, and practical PCB/thermal design notes not found in the manufacturer datasheet.
直接替换替代料： PIC16LF722-E/SO ——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： PIC16LF722-E/SO （相同外形与封装尺寸） ——差异在于 Package, Timers, ADC, Family, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
PIC16LF722-I/SO
✅ 直接替换✓ 有现货
$1.4 / 个
查看数据手册 →PIC16F722-E/SO
✅ 直接替换✓ 有现货
$1.38 / 个
查看数据手册 →PIC16F722-I/SO
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF722A-E/SO
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.18 / 个
查看数据手册 →PIC16LF722A-I/SO
✅ 直接替换✓ 有现货
$0.92 / 个
查看数据手册 →PIC16LF720-I/SO
✅ 直接替换✓ 有现货
$0.85 / 个
查看数据手册 →PIC16LF722-E/SO 最大额定值与电气特性
| Family | PIC16F / PIC16LF |
| Core | 8-bit PIC mid-range (14-bit instruction set) |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| RAM | 128 bytes |
| Maximum CPU Speed | 20 MHz (5 MIPS) |
| Operating Voltage (LF variant) | 1.8 V to 3.6 V |
| 工作温度 | -40C to +125C (extended 'E' grade) |
| I/O Pins | 25 |
| ADC | 10-bit, up to 11 input channels |
| Timers | 1 x 8-bit, 1 x 16-bit |
| PWM/CCP Modules | 1 ECCP + 1 CCP |
| Communication | 1 x EUSART |
| Low-Power Technology | nanoWatt XLP |
| 封装 | 28-pin SOIC (SO), wide-body, 7.50 mm (300 mil) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
PIC16LF722-E/SO 引脚配置
| 引脚 1 | RA3/AN3/Vref+ — Bidirectional I/O / analog input 3 / ADC positive reference |
| 引脚 2 | RA2/AN2 — Bidirectional I/O / analog input 2 |
| 引脚 3 | RA1/AN1 — Bidirectional I/O / analog input 1 |
| 引脚 4 | RA0/AN0 — Bidirectional I/O / analog input 0 |
| 引脚 5 | VSS — Ground reference |
| 引脚 6 | RA7/OSC1 — Bidirectional I/O / crystal oscillator input |
| 引脚 7 | RA6/OSC2 — Bidirectional I/O / crystal oscillator output |
| 引脚 8 | RB7/PGD — Bidirectional I/O / ICSP data line |
| 引脚 9 | RB6/PGC — Bidirectional I/O / ICSP clock line |
| 引脚 10 | RB5/AN11 — Bidirectional I/O / analog input 11 |
| 引脚 11 | RB4/AN10 — Bidirectional I/O / analog input 10 |
| 引脚 12 | RB3/CCP1 — Bidirectional I/O / Capture/Compare/PWM 1 |
| 引脚 13 | RB2/P1B — Bidirectional I/O / PWM 1 output B |
| 引脚 14 | RB1/P1A — Bidirectional I/O / PWM 1 output A |
| 引脚 15 | RB0/INT — Bidirectional I/O / external interrupt |
| 引脚 16 | VDD — Positive supply (1.8V to 3.6V for LF variant) |
| 引脚 17 | RC7/RX/DT — Bidirectional I/O / EUSART RX |
| 引脚 18 | RC6/TX/CK — Bidirectional I/O / EUSART TX |
| 引脚 19 | RC5/SDO — Bidirectional I/O / SPI data out |
| 引脚 20 | RC4/SDI/SDA — Bidirectional I/O / SPI data in / I2C data |
| 引脚 21 | RC3/SCL/SCK — Bidirectional I/O / I2C clock / SPI clock |
| 引脚 22 | RC2/CCP1 — Bidirectional I/O / Capture/Compare/PWM 1 |
| 引脚 23 | RC1/T1OSI — Bidirectional I/O / Timer1 oscillator input |
| 引脚 24 | RC0/T1OSO — Bidirectional I/O / Timer1 oscillator output |
| 引脚 25 | RE3/MCLR/VPP — Input only / Master Clear reset / programming voltage |
| 引脚 26 | RA4/T0CKI — Bidirectional I/O / Timer0 clock input |
| 引脚 27 | RA5/AN4/SS — Bidirectional I/O / analog input 4 / SPI slave select |
| 引脚 28 | VSS — Ground reference |
典型应用
PIC16LF722-E/SO 适用于 6 应用s: Battery-Powered Sensor Node, Consumer Remote Control (IR/RF), Small Appliance Control (Blender/Coffee Maker), Brushed DC Motor Speed Controller, LED Lighting Controller (Architectural/Sign), Educational / Hobby Embedded Platform.
Battery-Powered Sensor Node
The PIC16LF722-E/SO's nanoWatt XLP technology delivers typical sleep current around 20 nA, making it well suited to coin-cell or 2xAA powered wireless sensor nodes that spend most of their duty cycle asleep. The 1.8V to 3.6V VDD range aligns directly with single-cell Li-ion / Li-Po chemistries without a boost converter. With 3.5 KB of Flash and 128 bytes of RAM, the part supports small sensor-fusion and BLE-beacon firmware. Pair it with a low-power RF IC and a sensor; the EUSART handles the host link. The 28-SOIC wide-body footprint is friendly to hand-prototyping and rework.
推荐
Consumer Remote Control (IR/RF)
Handheld IR or sub-GHz RF remote controls benefit from the PIC16LF722-E/SO's 1.8V to 3.6V operation, 20 nA sleep current, and low BOM cost. The EUSART and ECCP modules drive either an IR LED with software carrier modulation or an external SAW transmitter. With 3.5 KB of Flash the firmware fits button matrix scanning, debounce, protocol encoding (RC5, NEC, ZigBee RF4CE), and battery monitor code. The extended -40C to +125C temperature grade supports outdoor or automotive cabin remotes. Use sleep between keystrokes to achieve multi-year coin-cell life.
推荐
Small Appliance Control (Blender/Coffee Maker)
White-goods motor and heater control leverages the PIC16LF722-E/SO's integrated 10-bit ADC (reads temperature/potentiometer feedback), ECCP module (drives a TRIAC or power MOSFET via opto-isolator), and -40C to +125C extended temperature grade suitable for hot enclosures. The 1.8V to 3.6V rail can be derived from a small buck regulator; the same MCU handles user pushbuttons, indicator LEDs, and serial diagnostics. The 28-SOIC wide-body package simplifies the through-hole-free PCB layout required for consumer appliance safety certifications. The low cost (<$1.85 qty 1) supports aggressive BOM targets.
推荐
Brushed DC Motor Speed Controller
The PIC16LF722-E/SO's ECCP module generates PWM up to 20 kHz with hardware dead-band control, ideal for brushed DC motor H-bridge or single-FET speed regulation. The 10-bit ADC reads a potentiometer or tachometer feedback, while the EUSART exposes a tuning/diagnostic port. The 1.8V to 3.6V range supports direct battery operation; the extended -40C to +125C grade handles underhood or industrial cabinet environments. Pair with an N-FET half-bridge driver; the MCU adds soft-start, current-limit, and stall-protection algorithms in firmware.
推荐
LED Lighting Controller (Architectural/Sign)
Architectural and signage LED controllers use the PIC16LF722-E/SO to generate multiple PWM channels for RGBW color mixing and brightness dimming. The ECCP/CCP blocks drive MOSFETs at constant-current LED strings, while the 10-bit ADC monitors supply voltage and ambient light for closed-loop brightness. The 1.8V to 3.6V operation suits USB-powered or 3.3V regulated rails. DMX-512 or DALI protocol stacks fit in the 3.5 KB Flash. The extended temperature grade supports outdoor LED drivers and stage lighting fixtures.
推荐
Educational / Hobby Embedded Platform
Universities, maker communities, and hobbyists rely on the PIC16LF722-E/SO as a teaching vehicle because it is inexpensive ($0.78 at qty 3000), supported by Microchip's free MPLAB X IDE and XC8 compiler, and exposes all peripherals on the 28-SOIC wide-body footprint that breadboards and thru-hole adapters accept. Students learn ADC sampling, PWM motor control, USART communications, and interrupt-driven firmware on real silicon rather than simulators. The nanoWatt XLP low-power modes illustrate energy-aware design patterns. The 3.5 KB Flash is enough for a multi-week curriculum without overwhelming students.
推荐
推荐产品汇总
工程参考数据： PIC16LF722-E/SO ——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/SO | PIC16F722-E/SO | PIC16F722-I/SO | PIC16LF722A-E/SO | PIC16LF720-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (SO) | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same |
| Program Flash | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 1.75 KB (-50%) |
| Operating Voltage | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) | 2.0 V to 5.5 V (F) | 2.0 V to 5.5 V (F) | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) |
| Temperature Grade | -40C to +125C (Extended E) | -40C to +85C (Industrial I) | -40C to +125C (Extended E) | -40C to +85C (Industrial I) | -40C to +125C (Extended E) | -40C to +85C (Industrial I) |
| CPU Speed | 20 MHz (5 MIPS) | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| ADC | 10-bit, 11 channels | 10-bit, 11 channels | 10-bit, 11 channels | 10-bit, 11 channels | 10-bit, 11 channels | 10-bit, 12 channels |
| Unit Price (qty 1, est.) | $1.85 | ~$1.70 | ~$1.95 | ~$1.80 | ~$1.85 | ~$1.40 |
关键差异点
- Extended -40C to +125C temperature grade （对比 PIC16LF722-I/SO)
- Low-voltage 1.8V to 3.6V operation for coin-cell designs （对比 PIC16F722-E/SO)
- 3.5 KB Flash vs 1.75 KB in the smaller cousin （对比 PIC16LF720-I/SO)
设计说明
Place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 16) on the PIC16LF722-E/SO, with a 1 uF to 10 uF bulk capacitor on the same rail. The LF variant draws roughly 200 uA/MHz in run mode and 20 nA in sleep, so peak currents are low; however, ADC switching can produce sub-microsecond transients that the 100 nF cap must bypass. Tie unused I/O pins to defined logic levels (VDD or VSS) via software to avoid floating-input shoot-through current of several uA per pin.
Route the ICSP lines (RB6/PGC pin 9 and RB7/PGD pin 8) with short traces and avoid routing noisy PWM or analog signals next to them - capacitive coupling can corrupt in-circuit programming. Keep the MCLR/VPP line (pin 25) away from high-frequency switching nodes; place a 10 kohm pull-up to VDD and a 100 nF cap to VSS for noise immunity. Maintain a continuous ground plane under the SOIC footprint for thermal spreading and EMI suppression.
When using the 28-SOIC PIC16LF722 with the internal 16 MHz oscillator at 3.3 V, the EUSART can struggle above 115200 baud over long cables due to rise-time degradation. Use the EUSART's BRGH bit for higher baud rates, and ensure the cable impedance is matched. For analog inputs, place a 100 nF ceramic cap directly at each ANx pin used; the 10-bit ADC source impedance should be below 10 kohm for full-scale accuracy.
Do not power the PIC16LF722-E/SO above 3.6 V - it is the LF variant, not the F variant. The 5V-tolerant PIC16F722 is the closest 5V-compatible cousin. Also, the MCLR pin (pin 25) must never be left floating; either tie to VDD through a 10 kohm resistor or to VDD directly if reset is unused. Finally, ensure ICSP connector isolation does not back-feed voltage into the target during production programming.
合规信息
RoHS and lead-free per Microchip product page. PIC16LF722 is not AEC-Q100 qualified - choose PIC16F722-E/SO automotive version if needed.
