PIC16LF724T-I/MV - 7KB Flash 8-bit MCU 40-pin UQFN | Microchip
MPN: PIC16LF724T-I/MV ✓ Hoạt độngPIC16LF724T-I/MV Tóm tắt
A microcontroller (MCU) is a single-chip processor that integrates a CPU, non-volatile Flash memory for program storage, SRAM for runtime data, and a rich set of peripherals such as timers, ADC, comparators, communication interfaces, and I/O ports in one package, replacing many discrete logic and timing components. Microcontrollers sit at the bottom of the processor taxonomy - microcontroller -> embedded processor -> integrated circuit -> semiconductor - and dominate consumer, industrial, automotive, and IoT applications where deterministic low-power real-time control is required.
Key features include nanoWatt XLP sleep currents as low as 20 nA (typical), an integrated 10-bit ADC with up to 14 channels, multiple capture/compare/PWM modules, two analog comparators with selectable reference, on-chip EEPROM emulation, an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART) and support for SPI and I2C masters/slaves. The on-chip debug and In-Circuit Serial Programming (ICSP) interfaces enable field upgrades via standard MPLAB tools. The UQFN-40 footprint provides a compact 5 x 5 mm body with an exposed thermal pad for improved dissipation in dense PCBs.
Architecturally the PIC16LF724 uses a 14-bit modified Harvard RISC core with 49 instructions and a 16-level hardware stack, well suited to interrupt-driven control loops. The XLP technology combines low-leakage MOS design, switchable clock sources (INTOSC up to 16 MHz), and core-independent peripherals that allow the CPU to sleep while timers, comparators, or the ADC continue to operate and wake the device only on events.
Typical applications include battery-powered sensor nodes, low-power IoT end nodes, remote controls, medical instrumentation, energy-harvesting systems, white-goods user interfaces, and small appliance motor/timer control. Any portable product that runs from a coin cell or Li-Ion battery for months to years benefits from the deep-sleep nanoWatt modes.
When laying out the PCB, expose the UQFN thermal pad with a continuous ground plane and stitch vias to the inner ground layers; do not route signals under the pad. Bulk-decouple VDD with 1 uF and 100 nF ceramics within 2 mm of the pins, place the ICSP/ICD signals on a dedicated header, and keep the external crystal or high-speed clock traces short and guard-grounded to preserve the ADC's noise performance. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF724T-I/MV — 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 PIC16LF724T-I/MV (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Operating Temperature, Program Memory (Flash), ADC.
PIC16LF723T-I/MV
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF722T-I/MV
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF727T-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF726T-I/MV
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF722A-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1902-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF724T-I/MV Tỷ lệ tối đa & tính chất điện
| Family | PIC16F |
| Core | 8-bit PIC RISC (14-bit instruction width) |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| RAM | 192 bytes |
| Data EEPROM | On-chip EEPROM emulation (Datasheet: see PIC16F720/721/722/723/724/726/727 data) |
| Maximum CPU Frequency | 20 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Low-Power Technology | nanoWatt XLP |
| ADC | 10-bit, up to 14 channels |
| Comparators | 2 with selectable voltage reference |
| Timers | Timer0, Timer1, Timer2 (Enhanced PWM/Capture) |
| PWM | Enhanced Capture/Compare/PWM (ECCP) modules |
| Communication | EUSART, SPI, I2C (Master/Slave) |
| Hộp | 40-pin UQFN (5 x 5 mm) with exposed thermal pad |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial 'I') |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant (Pb-free NiPdAu lead finish) |
Cấu hình chân PIC16LF724T-I/MV
| Chân 1 | RA0/AN0/C1IN0-/C2IN0-/ULPCLK — Bidirectional I/O, analog channel 0, comparator input, ultra-low-power clock |
| Chân 2 | RA1/AN1/C1IN1-/C2IN1- — Bidirectional I/O, analog channel 1, comparator input |
| Chân 3 | RA2/AN2/C1IN0+/C2IN0+ — Bidirectional I/O, analog channel 2, comparator input |
| Chân 4 | RA3/AN3/C1IN1+/T6CKI/MCLR — Bidirectional I/O, analog channel 3, comparator input, Timer6 clock, master clear (reset) input |
| Chân 5 | RA4/AN4/C1IN2-/C2IN2-/T1G — Bidirectional I/O, analog channel 4, comparator input, Timer1 gate |
| Chân 6 | RA5/AN5/C1IN2+/C2IN2+/T2CKI/SS — Bidirectional I/O, analog channel 5, comparator input, Timer2 clock, SPI slave select |
| Chân 7 | RA6/OSC2/CLKR — Bidirectional I/O, oscillator output, clock output |
| Chân 8 | RA7/OSC1/CLKIN — Bidirectional I/O, oscillator input, external clock input |
| Chân 9 | VDD — Positive supply voltage |
| Chân 10 | VSS — Ground reference |
| Chân 11 | RB0/INT/AN12/SDI/SDA — Bidirectional I/O, external interrupt, analog channel 12, SPI data in, I2C data |
| Chân 12 | RB1/AN10/C1IN3-/C2IN3- — Bidirectional I/O, analog channel 10, comparator input |
| Chân 13 | RB2/AN8/C1IN3+/C2IN3+ — Bidirectional I/O, analog channel 8, comparator input |
| Chân 14 | RB3/AN9/CCP1/T7CKI — Bidirectional I/O, analog channel 9, capture/compare/PWM, Timer7 clock |
| Chân 15 | RB4/AN11/P1D/C2OUT/SDO — Bidirectional I/O, analog channel 11, PWM output, comparator output, SPI data out |
| Chân 16 | RB5/P1C/SDI/SDA — Bidirectional I/O, PWM output, SPI data in, I2C data |
| Chân 17 | RB6/SCK/SCL — Bidirectional I/O, SPI clock, I2C clock |
| Chân 18 | RB7/CCP1/INT — Bidirectional I/O, capture/compare/PWM, external interrupt |
| Chân 19 | VSS — Ground reference |
| Chân 20 | VDD — Positive supply voltage |
| Chân 21 | RC0/P2D/T8CKI — Bidirectional I/O, PWM output, Timer8 clock |
| Chân 22 | RC1/P2C/CCP2 — Bidirectional I/O, PWM output, capture/compare/PWM |
| Chân 23 | RC2/CCP1/P1A — Bidirectional I/O, capture/compare/PWM, PWM output |
| Chân 24 | RC3/P1B/SCK/SCL — Bidirectional I/O, PWM output, SPI clock, I2C clock |
| Chân 25 | RC4/P1C/SDI/SDA — Bidirectional I/O, PWM output, SPI data in, I2C data |
| Chân 26 | RC5/SDO — Bidirectional I/O, SPI data out |
| Chân 27 | RC6/TX/CK — Bidirectional I/O, EUSART transmit, EUSART clock |
| Chân 28 | RC7/RX/DT — Bidirectional I/O, EUSART receive, EUSART data |
| Chân 29 | RE3/MCLR/VPP — Master clear (reset), programming voltage |
| Chân 30 | RE0/AN6 — Bidirectional I/O, analog channel 6 |
| Chân 31 | RE1/AN7 — Bidirectional I/O, analog channel 7 |
| Chân 32 | RE2/AN21 — Bidirectional I/O, analog channel 21 |
| Chân 33 | VDD — Positive supply voltage |
| Chân 34 | VSS — Ground reference |
| Chân 35 | RD0/AN16/P3D — Bidirectional I/O, analog channel 16, PWM output |
| Chân 36 | RD1/AN17/P3C — Bidirectional I/O, analog channel 17, PWM output |
| Chân 37 | RD2/AN18/P3B — Bidirectional I/O, analog channel 18, PWM output |
| Chân 38 | RD3/AN19/P3A/CCP2 — Bidirectional I/O, analog channel 19, PWM output, capture/compare/PWM |
| Chân 39 | RD4/AN20 — Bidirectional I/O, analog channel 20 |
| Chân 40 | RD5/P2B — Bidirectional I/O, PWM output |
Ứng dụng tiêu biểu
PIC16LF724T-I/MV phù hợp cho 6 Áp dụngs: Battery-Powered IoT Sensor Node, Consumer Remote Control and HMI, Industrial Process Sensor Transmitter, Medical Battery-Powered Monitor, Home Appliance User Interface and Timer, Energy-Harvesting Wireless Switch.
Battery-Powered IoT Sensor Node
The PIC16LF724T-I/MV's nanoWatt XLP technology with sub-microamp sleep currents and a 1.8 V - 3.6 V supply window directly suits battery-powered IoT sensor nodes powered by single-cell Li-Ion or LiSOCl2 coin cells. The 10-bit ADC with up to 14 channels interfaces to environmental sensors (temperature, humidity, light) while the two analog comparators deliver low-power threshold detection that can wake the CPU on event without continuous ADC conversion. Its 20 MHz core settles before re-sleep, keeping average current below 1 uA in duty-cycled applications. With 7 KB of Flash there is headroom for over-the-air firmware update protocols without external storage, reducing BOM cost.
Được đề xuất
Consumer Remote Control and HMI
Remotes need months-to-years of standby from alkaline or coin cells, low-latency user feedback and an EUSART/SPI/I2C-friendly peripheral set, exactly the PIC16LF724T-I/MV feature list. The on-chip 10-bit ADC scans keypads and IR receivers while the comparators handle wake-on-button with no external components. The PWM/ECCP modules can drive backlight LEDs and haptic buzzers directly from the I/O. With 192 bytes of RAM and 7 KB of Flash the device runs state-table user-interface code and supports minor protocol updates through MPLAB ICSP without erasing production keys. Using nanoWatt XLP the idle current is typically tens of nanoamps, so 2 x AAA cells last multi-year.
Được đề xuất
Industrial Process Sensor Transmitter
Industrial 4-20 mA loop, RTD and bridge sensor transmitters benefit from the PIC16LF724T-I/MV's 1.8 V - 3.6 V supply that can be derived from loop current or a low-drop regulator. Its on-chip 10-bit ADC with internal voltage reference reads strain gauge and RTD signals with adequate resolution; the dual comparators provide sensor-health and brown-out supervision. The Enhanced Capture/Compare/PWM modules generate HART or proprietary modulation patterns on the loop driver without CPU intervention. The -40 C to +85 C industrial temperature grade and 1.8 V minimum guarantee deterministic start-up in cold outdoor installations. The 7 KB Flash holds the linearization tables and diagnostics firmware.
Được đề xuất
Medical Battery-Powered Monitor
Wearable medical monitors (pulse-ox patches, single-lead ECG event recorders, smart pill dispensers) need deterministic low-power operation, RF-friendly sleep currents, and enough Flash for sensor-fusion routines - all provided by the PIC16LF724T-I/MV. The dual comparators supervise low-battery and signal-stuck alarms while the 10-bit ADC samples the analog front end; ECCP waveforms drive optical LED chains for SpO2 measurement. The MCU's nanoWatt XLP current of roughly 20 nA lets a CR2032 cell power a multi-month health patch. The 40-pin UQFN fits wrist-watch-style flex PCBs alongside the Li-Ion coin cell.
Được đề xuất
Home Appliance User Interface and Timer
Appliance control panels (washing machines, dishwashers, induction cooktops, smart thermostats) need reliable industrial-temperature operation, capacitive touch key handling, segmented LCD drive, and PWM for relay or triac control - a perfect PIC16LF724T-I/MV application. The ECAP/ECCP modules generate zero-cross triac triggers while timers run continuously from the low-power INTOSC. The 14-channel ADC reads NTC temperature inputs and mains-isolated voltage dividers; the comparators handle zero-crossing detection for triac synchronization. 7 KB of Flash and 192 bytes of RAM hold state machines, PID loops and user-interface firmware in a compact 5 mm x 5 mm UQFN.
Được đề xuất
Energy-Harvesting Wireless Switch
Self-powered switches (EnOcean-style, kinetic or solar-harvested wall switches) rely on nanoWatt sleep currents so the harvested energy is larger than the standby drain. The PIC16LF724T-I/MV's roughly 20 nA sleep current satisfies this criterion. The on-chip ADC measures harvested energy and capacitor voltage while the built-in comparators generate the wake-up interrupt on button-press. With up to 20 MHz core the MCU can encrypt and transmit an event packet via an EUSART-controlled sub-GHz radio module before returning to sleep. The wide 1.8 V - 3.6 V supply matches supercapacitor rails directly.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF724T-I/MV — 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 | PIC16LF723T-I/MV | PIC16LF722T-I/MV | PIC16LF727T-I/MV | PIC16LF726T-I/MV | PIC16LF722A-I/MV |
|---|---|---|---|---|---|---|
| Package | UQFN-40 (MV) 5 x 5 mm | UQFN-40 (MV) - same | UQFN-40 (MV) - same | UQFN-40 (MV) - same | UQFN-40 (MV) - same | UQFN-40 (MV) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 7 KB (4K x 14) | 7 KB | 3.5 KB | 14 KB | 14 KB | 3.5 KB |
| RAM | 192 B | 128 B | 128 B | 256 B | 192 B | 128 B |
| Supply Voltage Range | 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 | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Low-Power Technology | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP |
| Operating Temperature Range | -40 C to +85 C (Industrial 'I') | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Bảo phân biệt quan trọng
- Mid-density 7 KB Flash with full nanoWatt XLP and industrial-temperature grade (vsPIC16LF722T-I/MV)
- Smaller footprint drop-in with more peripherals versus the original PIC16F722 baseline (vsPIC16LF722T-I/MV)
- Balanced Flash vs RAM; the 724 is the sweet spot for battery-powered control loops (vsPIC16LF727T-I/MV)
Ghi chú thiết kế
Expose the UQFN-40 thermal pad with a continuous ground plane in the top layer and stitch it to the inner ground layers with a 4 x 4 via array (0.3 mm via, 0.5 mm pitch). Do not route signals under the EP and keep RF/I/O traces on outer layers. Pin 1 is identified by the mechanical dot at the EP chamfer, so leave a clear silkscreen alignment mark. A red-flag check during placement review: if the EP splits in two, the footprint is wrong - rotate the part 180 degrees.
Bulk-decouple each VDD pin with a 100 nF X7R ceramic within 2 mm and add a single 1 uF X5R bulk capacitor tied to the package EP ground. The 'LF' supply has a 1.8 V minimum, so on power-up the internal BOR must be enabled and configured for the lowest brown-out trip to prevent corruption of the EEPROM emulation at low battery. For battery applications, place a 10 ohm ferrite bead in series with VDD to suppress inrush current transients and protect the coin cell.
A common swap mistake is to confuse the MV (UQFN-40) suffix with the PT (TQFP-44) or SP (SPDIP-28) packages. Per the Microchip datasheet, only the MV/UQFN-40 variants share this pinout; PIC16LF724-I/P and PIC16LF724-I/PT have different pin numbers and will not substitute without PCB rework. Also, the EUSART pins are remapped between the UQFN-40 and the SPDIP-28 packages - never assume the same RC6/RC7 mapping if migrating.
Thông tin tuân thủ
RoHS compliant per Microchip product page; Pb-free NiPdAu lead finish. Not AEC-Q100 qualified - choose PIC16F/dsPIC automotive parts for vehicle applications.
