PIC16LF723-I/SP - 8-Bit 20MHz 7KB Flash MCU 28-SPDIP | Microchip
料号： PIC16LF723-I/SP ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.55 | $2.55 |
| 10 | $2.18 | $21.80 |
| 100 | $1.84 | $184.00 |
| 500 | $1.62 | $810.00 |
| 1,000 | $1.45 | $1,450.00 |
PIC16LF723-I/SP 概述
What is a PIC16 Microcontroller? The PIC16 family is a line of 8-bit RISC microcontrollers from Microchip Technology built around a modified Harvard architecture with separate program and data buses, 35 single-word instructions, and a small, deterministic instruction set ideal for embedded control. These MCUs sit at the entry level of Microchip's PIC portfolio, between the PIC10/12/16 baseline devices and PIC18 mid-range parts, and are commonly used in consumer, industrial, and IoT applications where cost, low power, and ease of programming matter more than raw computational throughput.
Key features of the PIC16LF723-I/SP include 11 channels of 8-bit Analog-to-Digital Conversion (ADC), two PWM modules with Capture/Compare/PWM (CCP) capability, and three serial communication peripherals: I2C/SPI (master/slave SSP) and an enhanced USART. On-chip peripherals also include a programmable Brown-Out Reset (BOR), a Watchdog Timer with its own on-chip RC, two 8-bit timers and one 16-bit timer, and 36 bytes of general-purpose EEPROM. The 28-pin SPDIP package exposes up to 25 general-purpose I/O pins depending on peripheral use.
The PIC16LF723-I/SP architecture uses a Harvard-style RISC core with a hardware multiplier, 14-bit wide program memory and 8-bit data path, optimized for low-power operation in the 1.8-3.6V range. Compared to the legacy PIC16F72, the LF723 adds nanoWatt XLP sleep modes, an enhanced USART, and a larger ADC channel count while keeping the same 28-pin footprint for drop-in upgrades.
Typical applications include battery-powered sensor nodes, low-cost motor control, smoke and gas detectors, remote controls, smart meters, and small home appliances. The wide operating voltage window and low sleep current make it well suited for always-on, energy-constrained designs. When designing with this part, pay attention to the in-circuit serial programming (ICSP) pins and reserve adequate decoupling near VDD/VSS pairs; the LF variant is required for sub-2V operation, otherwise the standard PIC16F723 may be a lower-cost alternative.
直接替换替代料： PIC16LF723-I/SP ——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： PIC16LF723-I/SP （相同外形与封装尺寸） ——差异在于 ADC, Operating Temperature, Timers, Package, Data RAM.
快速对比工具——选择替代料号进行并排对比：
PIC16LF723A-I/SP
✅ 直接替换✓ 有现货
$1.7 / 个
查看数据手册 →PIC16LF722-I/SP
✅ 直接替换✓ 有现货
$1.65 / 个
查看数据手册 →PIC16LF722A-I/SP
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF727-I/SP
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC16F723-I/SP
✅ 直接替换✓ 有现货
$1.55 / 个
查看数据手册 →PIC16LF723-I/SP 最大额定值与电气特性
| Family | PIC16F |
| Core | 8-bit PIC16 RISC |
| Program Memory | 7 KB (4K x 14 words) Flash |
| RAM | 192 bytes |
| Max CPU Frequency | 20 MHz |
| Instruction Cycle Time | 200 ns |
| Supply Voltage (Vdd) | 1.8 V to 3.6 V |
| I/O Pins | Up to 25 |
| ADC | 11 channels x 8-bit |
| PWM / CCP | 2 CCP modules |
| Timers | 2 x 8-bit + 1 x 16-bit |
| Communication | I2C, SPI, Enhanced USART |
| 封装 | 28-pin SPDIP (SP) |
| 工作温度 | -40C to +85C (Industrial) |
| 安装类型 | Through-Hole |
| RoHS 状态 | Compliant |
PIC16LF723-I/SP 引脚配置
| 引脚 1 | RA3/AN3/VREF+ — Bidirectional I/O / ADC input / voltage reference |
| 引脚 2 | RA4/AN4 — Bidirectional I/O / ADC input |
| 引脚 3 | RA5/AN5 — Bidirectional I/O / ADC input |
| 引脚 4 | RA6/OSC2/CLKOUT — I/O / oscillator output / clock output |
| 引脚 5 | RA7/OSC1/CLKIN — I/O / oscillator input / external clock input |
| 引脚 6 | RC0/T1OSO/T1CKI — I/O / Timer1 oscillator output / Timer1 clock input |
| 引脚 7 | RC1/T1OSI — I/O / Timer1 oscillator input |
| 引脚 8 | RC2/CCP1 — I/O / CCP1 PWM output |
| 引脚 9 | RC3/SCK/SCL — I/O / SPI clock / I2C clock |
| 引脚 10 | RC4/SDI/SDA — I/O / SPI data in / I2C data |
| 引脚 11 | RC5/SDO — I/O / SPI data out |
| 引脚 12 | RC6/TX/CK — I/O / EUSART transmit / clock |
| 引脚 13 | RC7/RX/DT — I/O / EUSART receive / data |
| 引脚 14 | VSS — Ground reference |
| 引脚 15 | VDD — Positive supply (1.8V-3.6V) |
| 引脚 16 | RB7/PGD — I/O / ICSP data |
| 引脚 17 | RB6/PGC — I/O / ICSP clock |
| 引脚 18 | RB5/AN13 — I/O / ADC input |
| 引脚 19 | RB4/AN11 — I/O / ADC input |
| 引脚 20 | RB3/AN9/CCP2 — I/O / ADC input / CCP2 PWM |
| 引脚 21 | RB2/AN8 — I/O / ADC input |
| 引脚 22 | RB1/AN10 — I/O / ADC input |
| 引脚 23 | RB0/AN12/INT — I/O / ADC input / external interrupt |
| 引脚 24 | RA0/AN0 — I/O / ADC input |
| 引脚 25 | RA1/AN1 — I/O / ADC input |
| 引脚 26 | RA2/AN2/VREF- — I/O / ADC input / voltage reference |
| 引脚 27 | MCLR/VPP/RA5 — Master clear (reset) / programming voltage |
| 引脚 28 | VSS — Ground reference (secondary) |
典型应用
PIC16LF723-I/SP 适用于 6 应用s: Battery-Powered Sensor Nodes, Low-Cost Motor Control (DC and Stepper), Smoke and Gas Detectors, Remote Controls and IR Keyfobs, Smart Meters and Energy Monitoring, Small Home Appliances (Coffee Makers, Humidifiers).
Battery-Powered Sensor Nodes
The PIC16LF723-I/SP is a strong fit for battery-powered wireless sensor nodes where sub-1 uA sleep current and 1.8V operation are mandatory. Its nanoWatt XLP architecture delivers years of battery life from a single coin cell, while the 11-channel 8-bit ADC reads multiple sensors (temperature, humidity, light, battery voltage) without external MUX. Engineers typically pair it with sub-GHz transceivers such as the MRF89XA using the integrated SPI, and use the EUSART for debug logging. The 7KB Flash supports over-the-air firmware updates via ICSP, and the 28-SPDIP through-hole package simplifies hand-soldered prototypes. Compared to a 32-bit Cortex-M0 alternative, the PIC16LF723 consumes a fraction of the sleep current, making it ideal for sleep-dominated duty cycles of <1%.
推荐
Low-Cost Motor Control (DC and Stepper)
The PIC16LF723-I/SP suits small DC brushed and unipolar stepper motor control thanks to its two CCP/PWM modules with up to 10-bit resolution and 20MHz timer clock. A single 28-SPDIP device can drive two H-bridges or one stepper with microstepping via software PWM. The 11-channel ADC reads back current-sense amplifiers and potentiometer position feedback in real time. With 200ns instruction cycle, control loops close in well under 50 us, fast enough for RC-servo-rate updates. The wide 1.8V-3.6V supply lets designers run the MCU directly from a 2xAA pack or single Li-ion cell, simplifying BOM cost. Add external MOSFET drivers (e.g. MCP1416) for higher-current loads.
推荐
Smoke and Gas Detectors
The PIC16LF723-I/SP is well suited for photoelectric smoke detectors and low-power gas detectors. Its 1.8V-3.6V operation supports direct drive from a 9V battery plus LDO, while nanoWatt XLP sleep current below 1 uA extends detector life to 10+ years on a single battery. The 11-channel 8-bit ADC samples both photoelectric chamber current and electrochemical gas-sensor output, with internal reference for ratiometric measurements. The integrated EUSART supports a debug/calibration UART port for manufacturing test, and the 2 CCP modules drive buzzer and LED indicators. UL 217 alarm standards require reliable low-power operation, which the LF723 family was designed for, and the 28-SPDIP package withstands hand-soldering and rework.
推荐
Remote Controls and IR Keyfobs
The PIC16LF723-I/SP is ideal for IR remote controls and BLE/Sub-GHz keyfobs where every microamp counts. Its nanoWatt XLP sleep mode draws under 50 nA typical, enabling years of standby life from a CR2032 coin cell. The integrated EUSART or MSSP can bit-bang IR protocols (RC5, NEC, SIRC) or drive a Sub-GHz OOK/FSK transmitter for two-way keyfob designs. The 7KB Flash supports multi-protocol firmware with on-the-fly protocol switching, and 192B RAM is sufficient for short IR command frames. With 25 GPIO available, designers can implement up to 8x4 keypad matrices plus LED indicators in a single 28-SPDIP. Industrial-grade -40C to +85C operation handles automotive and outdoor environments.
推荐
Smart Meters and Energy Monitoring
The PIC16LF723-I/SP fits single-phase smart electricity meters and sub-metering modules. Its 11-channel 8-bit ADC reads current-transformer outputs, voltage-divider mains sensing, and temperature compensation sensors with sufficient accuracy for Class 1 meters when paired with calibration. The integrated EUSART supports PLC (power-line communication) modems or RS-485 to a concentrator, while MSSP drives an LCD or segmented display. Sub-1 uA sleep current extends battery backup life during power outages. With 7KB Flash and 192B RAM, designers can implement IEC 62053-21 metering algorithms, TOU tariffs, and tamper detection. The 28-SPDIP package is field-serviceable for utility technicians.
推荐
Small Home Appliances (Coffee Makers, Humidifiers)
The PIC16LF723-I/SP powers small home appliances like coffee makers, humidifiers, air purifiers, and toaster ovens where HMI, motor control, and sensor feedback converge. The 2 CCP/PWM modules drive heater elements and pumps, the 11-channel ADC reads temperature, water level, and humidity sensors, and the integrated I2C drives an OLED or character LCD. The 25 GPIO handle capacitive-touch keypad matrices via software CTMU or external FDC1004. Industrial-grade temperature range supports kitchen environments. With 7KB Flash, designers embed PID control loops, recipes, and safety interlock logic. The 28-SPDIP package is friendly to high-volume through-hole assembly lines.
推荐
推荐产品汇总
工程参考数据： PIC16LF723-I/SP ——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 | PIC16LF723A-I/SP | PIC16LF722-I/SP | PIC16LF727-I/SP |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP (SP) | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same |
| Program Memory (Flash) | 7 KB | 7 KB | 3.5 KB (-50%) | 14 KB (+100%) |
| RAM | 192 bytes | 192 bytes | 128 bytes | 256 bytes |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Max CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| ADC Channels | 11 x 8-bit | 11 x 8-bit | 9 x 8-bit | 14 x 8-bit |
| I/O Pins | 25 | 25 | 25 | 25 |
关键差异点
- Updated silicon revision 'A' variant available with same pinout （对比 PIC16LF723A-I/SP)
- Larger 7KB Flash versus lower-cost 3.5KB variants （对比 PIC16LF722-I/SP)
- 1.8V minimum supply voltage for coin-cell designs （对比 PIC16F723-I/SP)
设计说明
Estimated: at VDD=3.3V, 20MHz operation, the PIC16LF723-I/SP typically draws about 6 mA active and <1 uA in sleep with Watchdog disabled. For battery-powered designs, add a 100 nF decoupling capacitor close to VDD pin 15, plus a 10 uF bulk capacitor on the supply rail. The MCLR/VPP pin must have a pull-up resistor (typically 10 kOhm) to VDD for proper reset; do not leave it floating. Use Sleep mode aggressively - waking every 16 ms to read a sensor can extend coin-cell life to 5+ years.
Route the ICSP pins (RB6/PGC, RB7/PGD) to a 6-pin header with 0.1 inch pitch for in-circuit programming and debug access. Keep high-speed switching traces (PWM, oscillator) away from analog inputs (RA0-RA7, RB0-RB5) to minimize crosstalk. Place the crystal or resonator as close to OSC1/OSC2 (RA7/RA6) as possible, with guard ground around it. For the 28-SPDIP through-hole package, ensure adequate clearance between pins for wave-soldering (0.1 inch pitch) and leave room for a ground copper pour on both sides of the board.
Common pitfalls when designing with PIC16LF723-I/SP: (1) do not drive RA4 (open-drain output) directly with a pull-up above 5V - the LF variant has 3.6V absolute max on most pins; (2) configure unused I/O as outputs and tie to VSS to minimize current consumption in sleep; (3) do not enable the ADC without a stable VREF+ - allow 10 us settling time after switching the reference; (4) when using the MSSP as I2C master, ensure SDA/SCL pull-ups are sized correctly for the bus capacitance (typically 4.7 kOhm at 100 kHz with <100 pF bus). Verify configuration bits (CONFIG register) for oscillator, watchdog, and brown-out reset before programming.
合规信息
RoHS and lead-free confirmed per Microchip product page and distributor listings. Not AEC-Q100 qualified - this is a consumer/industrial grade MCU. For automotive applications use PIC16F723A-E/SP (extended temperature).
