PIC16F720T-I/ML - 20-Pin 8-bit MCU 3.5KB Flash | Microchip
MPN： PIC16F720T-I/ML ✓ 啟用中PIC16F720T-I/ML 概覽
A microcontroller (MCU) is a single-chip computer containing a CPU, RAM, non-volatile program memory, and peripherals such as timers, ADCs, and communication interfaces. Within the broader semiconductor taxonomy, the PIC16F720 sits in the category hierarchy: microcontroller -> embedded processor -> digital IC -> semiconductor. The mid-range PIC16 core uses a 14-bit instruction set and is targeted at general-purpose applications where deterministic behavior, small pin count, and ultra-low-power (XLP) nanoWatt technology matter more than raw MIPS.
Key features include 3.5KB self-read/write flash program memory, 128B SRAM, 18 digital I/O pins, an integrated 12-channel 8-bit ADC, two 8-bit timers (TMR0/TMR2), one 16-bit timer (TMR1), a watchdog timer, and nanoWatt XLP technology for sub-microamp sleep currents. On-board peripherals include I2C, SPI, and AUSART (asynchronous/synchronous USART) communication blocks plus a CCP (Capture/Compare/PWM) module. Brown-out reset (BOR), power-on reset (POR), and in-circuit serial programming (ICSP) are also integrated.
Architecturally, the PIC16F720 uses the Harvard architecture with separate program and data buses. Its 8-level deep hardware stack and 35-instruction RISC core give deterministic interrupt latency, which is valuable in real-time control loops. The 16MHz internal oscillator with 4x PLL option delivers 16 MIPS throughput, while the nanoWatt XLP sleep modes drop quiescent current into the sub-1 uA range for battery-powered applications.
Typical applications include LED lighting controllers, low-cost sensor nodes, capacitive touch (mTouch) user interfaces, small home appliances, remote controls, and battery-powered IoT edge devices. The wide 2.5V-5.5V supply range supports direct operation from a single Li-Ion or two AA cells.
When designing with this device, ensure your toolchain (MPLAB X IDE, XC8 compiler) supports the PIC16F720 device family header and that ICSP connections (PGD/PGC) are accessible for firmware updates. The QFN-20 (4x4mm) package requires thermal pad soldering for reliable thermal performance.
This page combines verified distributor data, drop-in alternatives, and practical design notes not found on a typical datasheet page.
直接替換替代品，適用於 PIC16F720T-I/ML — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16F720T-I/ML （相同外形與佔位） — 差異在於 Package, Timers, Core Architecture, I/O Pins, Program Memory (Flash).
PIC16F720-I/ML
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16F721-I/ML
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16F720-E/ML
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC16F720T-I/MV
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC16F720T-I/ML 最大額定值與電氣特性
| Product Type | 8-bit Flash Microcontroller |
| Program Memory (Flash) | 3.5 KB |
| Data SRAM | 128 B |
| Data EEPROM | 0 B (emulated in flash) |
| CPU Core | PIC16 mid-range (8-bit, 14-bit instructions) |
| Maximum Clock Speed | 20 MHz |
| Supply Voltage (VDD) | 2.5 V to 5.5 V |
| I/O Pins | 18 |
| ADC | 12-channel, 8-bit |
| Timers | TMR0 (8-bit), TMR1 (16-bit), TMR2 (8-bit) |
| Communication Interfaces | I2C, SPI, AUSART |
| PWM Modules (CCP) | 1 |
| Internal Oscillator | 16 MHz (4x PLL to 16 MIPS) |
| Watchdog Timer | Yes |
| Brown-out Reset (BOR) | Yes |
| In-Circuit Serial Programming (ICSP) | Yes |
| 封裝 | QFN-20 (ML) 4x4 mm, no-lead, exposed pad |
| 工作溫度 | -40 C to +85 C (Industrial) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
PIC16F720T-I/ML 腳位配置
| 腳位 1 | RA0/ICSPDAT — GPIO RA0 / ICSP data |
| 腳位 2 | RA1/ICSPCLK — GPIO RA1 / ICSP clock |
| 腳位 3 | RA2 — GPIO RA2 |
| 腳位 4 | RA3/MCLR — GPIO RA3 / Master Clear (reset) |
| 腳位 5 | RA4 — GPIO RA4 |
| 腳位 6 | RA5 — GPIO RA5 |
| 腳位 7 | VSS — Ground |
| 腳位 8 | RB4 — GPIO RB4 |
| 腳位 9 | RB5 — GPIO RB5 |
| 腳位 10 | RB6 — GPIO RB6 |
| 腳位 11 | RB7 — GPIO RB7 |
| 腳位 12 | VDD — Positive supply voltage |
| 腳位 13 | RC0 — GPIO RC0 |
| 腳位 14 | RC1 — GPIO RC1 |
| 腳位 15 | RC2 — GPIO RC2 |
| 腳位 16 | RC3 — GPIO RC3 |
| 腳位 17 | RC4 — GPIO RC4 |
| 腳位 18 | RC5 — GPIO RC5 |
| 腳位 19 | RC6 — GPIO RC6 |
| 腳位 20 | RC7 — GPIO RC7 |
典型應用
PIC16F720T-I/ML 適用於 7 應用s: LED Lighting Controllers, Capacitive Touch (mTouch) User Interface, Battery-Powered IoT Sensor Nodes, Small Home Appliance Control, Remote Control Transmitters, Industrial Sensor Modules, Consumer Toy and Hobby Electronics.
LED Lighting Controllers
The PIC16F720T-I/ML is well suited for constant-current LED driver controllers in strip lighting and architectural fixtures. The 3.5 KB flash stores dimming curves and CCT blending tables, while the 12-channel 8-bit ADC reads thermistor inputs for thermal foldback. Its 25 mA source/sink I/O can directly drive MOSFET gate drivers for buck converter stages, and the CCP module produces PWM dimming at frequencies above 200 Hz to avoid flicker. NanoWatt XLP sleep current below 1 uA extends battery life in portable task lights.
推薦
Capacitive Touch (mTouch) User Interface
The PIC16F720T-I/ML integrates the mTouch capacitive touch sensing peripheral for button, slider, and proximity sensor implementations. The 12-channel ADC combined with the charge-time measurement unit (CTMU) provides reliable proximity detection through glass or plastic overlays up to 5 mm thick. With 3.5 KB flash, the device stores debounce algorithms and gesture recognition state machines. The QFN-20 (4x4 mm) package fits behind small touch pads in appliances, IoT wall switches, and consumer electronics where mechanical buttons are not desired.
推薦
Battery-Powered IoT Sensor Nodes
The PIC16F720T-I/ML's nanoWatt XLP technology delivers sub-1 uA sleep currents, making it ideal for battery-powered wireless sensor nodes transmitting temperature, humidity, or motion data periodically. The 2.5V-5.5V supply range supports direct operation from a single Li-Ion or two AA cells. The AUSART peripheral interfaces with sub-GHz transceivers, while the ADC reads sensor outputs. Watchdog timer-driven wake-up cycles provide years of operation from a single coin cell, and the small QFN-20 package fits within miniature sensor enclosures.
推薦
Small Home Appliance Control
The PIC16F720T-I/ML fits naturally in small home appliance controllers such as coffee makers, blenders, humidifiers, and air purifiers. Its 3.5 KB flash stores motor control algorithms and user interface state machines, while the 18 GPIO pins drive relays, triacs, and seven-segment displays. The CCP module generates PWM for brushed DC motor speed control, and the 12-channel ADC reads temperature and humidity sensors. Brown-out reset ensures clean recovery from brown-out conditions during motor startup surges.
推薦
Remote Control Transmitters
The PIC16F720T-I/ML is excellent for IR/RF remote control transmitters in TV, set-top box, and smart home applications. The 3.5 KB flash stores IR protocol libraries (RC5, NEC, Sony SIRC) and pairing sequences, while the AUSART generates Manchester-encoded RF signals for proprietary protocols. NanoWatt XLP sleep current below 1 uA provides years of operation from two AAA cells. The 20-pin QFN fits within slim remote enclosures, and the 25 mA I/O directly drives IR LEDs without external transistors.
推薦
Industrial Sensor Modules
The PIC16F720T-I/ML serves in industrial sensor modules including 4-20 mA loop-powered transmitters, process control signal conditioners, and factory automation edge nodes. The wide 2.5V-5.5V supply accommodates 24V industrial bus systems through external regulators. The 12-channel 8-bit ADC with internal voltage reference provides ratiometric measurement for strain gauge bridges and RTD temperature sensors. The AUSART interfaces with RS-485 transceivers for Modbus RTU communication in factory networks.
推薦
Consumer Toy and Hobby Electronics
The PIC16F720T-I/ML is widely used in consumer toys, drones, RC vehicles, and hobbyist electronics due to its low price, tiny QFN-20 footprint, and robust peripheral set. The CCP and timer peripherals control servos and motor drivers, while the AUSART communicates with RC receiver modules. Flash programming via ICSP allows field updates and product customization. The small 4x4 mm QFN package fits within space-constrained enclosures, and the 2.5V-5.5V supply supports direct Li-Po battery operation.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16F720T-I/ML — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16F720-I/ML | PIC16F721-I/ML | PIC16F720-E/ML | PIC16F720T-I/MV |
|---|---|---|---|---|---|
| Package | QFN-20 (ML) 4x4 mm | QFN-20 (ML) 4x4 mm - same | QFN-20 (ML) 4x4 mm - same | QFN-20 (ML) 4x4 mm - same | QFN-20 (ML) 4x4 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 3.5 KB | 3.5 KB | 7 KB | 3.5 KB | 3.5 KB |
| Data SRAM | 128 B | 128 B | 256 B | 128 B | 128 B |
| Maximum Clock Speed | 20 MHz (16 MIPS) | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C | -40 C to +125 C |
| Automotive Qualified | No | No | No | No | Yes |
| Packaging Format | Tape & Reel | Tube | Tube (I-suffix) / T&R (T-suffix) | Tube | Tape & Reel |
主要差異化特點
- Memory-upgrade pin-compatible variant available (對比PIC16F721-I/ML)
- Extended temperature option in same package (對比PIC16F720-E/ML)
- Automotive-qualified option available (對比PIC16F720T-I/MV)
- Tube-packaged option for prototyping (對比PIC16F720-I/ML)
設計說明
The QFN-20 (ML) package has an exposed thermal pad on the underside that MUST be soldered to a ground plane for both thermal dissipation and mechanical reliability. Per IPC-7351 guidelines, place a 0.1 uF ceramic decoupling capacitor within 3 mm of the VDD pin and a bulk 10 uF tantalum or ceramic capacitor near the IC. The exposed pad requires multiple thermal vias (typically 4-9) connecting it to the inner ground plane for optimal heat spreading.
The PIC16F720T-I/ML nanoWatt XLP technology achieves sub-1 uA sleep currents when properly configured. To minimize sleep current, disable the ADC, disable unused peripherals, switch clock sources to INTOSC with lowest frequency setting, and configure all unused I/O pins as outputs driving low. The brown-out reset (BOR) should be enabled to protect flash integrity at low VDD. Estimated: total sleep current of 0.6 uA typical with ADC off, watchdog enabled, INTOSC at 31 kHz.
ICSP programming requires access to the PGD (RA0) and PGC (RA1) pins, which are also general-purpose I/O. If your design uses these pins for critical functions, provide test points or programming header access. The MCLR pin (RA3) is used for external reset and must be pulled high through a 10 kohm resistor for normal operation. Avoid using RA4 as the only wake-up pin in sleep mode since it has different drive characteristics. ICSP connector should not share pins with high-impedance analog signals during programming.
合規資訊
RoHS and lead-free compliant per Microchip product page. Base part is not AEC-Q100 qualified - select PIC16F720T-I/MV for automotive qualification. Halogen-free per Microchip environmental compliance documentation.
