PIC16LF724T-I/MV - 7KB Flash 8-bit MCU 40-pin UQFN | Microchip
MPN: PIC16LF724T-I/MV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.58 | $2.58 |
| 10 | $2.31 | $23.10 |
| 100 | $2.05 | $205.00 |
| 500 | $1.82 | $910.00 |
| 1,000 | $1.61 | $1,610.00 |
PIC16LF724T-I/MV Overview
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.
Drop-in alternatives for PIC16LF724T-I/MV — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC16LF724T-I/MV (same form factor and footprint) — differing in Package, Program Memory (Flash), ADC, RoHS Status, Core Architecture.
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No drop-in alternatives available for this product.
Request AlternativesPIC16LF724T-I/MV Maximum Ratings & Electrical Characteristics
| 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) |
| Package | 40-pin UQFN (5 x 5 mm) with exposed thermal pad |
| Operating Temperature | -40 C to +85 C (Industrial 'I') |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (Pb-free NiPdAu lead finish) |
PIC16LF724T-I/MV Pin Configuration
| Pin 1 | RA0/AN0/C1IN0-/C2IN0-/ULPCLK — Bidirectional I/O, analog channel 0, comparator input, ultra-low-power clock |
| Pin 2 | RA1/AN1/C1IN1-/C2IN1- — Bidirectional I/O, analog channel 1, comparator input |
| Pin 3 | RA2/AN2/C1IN0+/C2IN0+ — Bidirectional I/O, analog channel 2, comparator input |
| Pin 4 | RA3/AN3/C1IN1+/T6CKI/MCLR — Bidirectional I/O, analog channel 3, comparator input, Timer6 clock, master clear (reset) input |
| Pin 5 | RA4/AN4/C1IN2-/C2IN2-/T1G — Bidirectional I/O, analog channel 4, comparator input, Timer1 gate |
| Pin 6 | RA5/AN5/C1IN2+/C2IN2+/T2CKI/SS — Bidirectional I/O, analog channel 5, comparator input, Timer2 clock, SPI slave select |
| Pin 7 | RA6/OSC2/CLKR — Bidirectional I/O, oscillator output, clock output |
| Pin 8 | RA7/OSC1/CLKIN — Bidirectional I/O, oscillator input, external clock input |
| Pin 9 | VDD — Positive supply voltage |
| Pin 10 | VSS — Ground reference |
| Pin 11 | RB0/INT/AN12/SDI/SDA — Bidirectional I/O, external interrupt, analog channel 12, SPI data in, I2C data |
| Pin 12 | RB1/AN10/C1IN3-/C2IN3- — Bidirectional I/O, analog channel 10, comparator input |
| Pin 13 | RB2/AN8/C1IN3+/C2IN3+ — Bidirectional I/O, analog channel 8, comparator input |
| Pin 14 | RB3/AN9/CCP1/T7CKI — Bidirectional I/O, analog channel 9, capture/compare/PWM, Timer7 clock |
| Pin 15 | RB4/AN11/P1D/C2OUT/SDO — Bidirectional I/O, analog channel 11, PWM output, comparator output, SPI data out |
| Pin 16 | RB5/P1C/SDI/SDA — Bidirectional I/O, PWM output, SPI data in, I2C data |
| Pin 17 | RB6/SCK/SCL — Bidirectional I/O, SPI clock, I2C clock |
| Pin 18 | RB7/CCP1/INT — Bidirectional I/O, capture/compare/PWM, external interrupt |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
| Pin 21 | RC0/P2D/T8CKI — Bidirectional I/O, PWM output, Timer8 clock |
| Pin 22 | RC1/P2C/CCP2 — Bidirectional I/O, PWM output, capture/compare/PWM |
| Pin 23 | RC2/CCP1/P1A — Bidirectional I/O, capture/compare/PWM, PWM output |
| Pin 24 | RC3/P1B/SCK/SCL — Bidirectional I/O, PWM output, SPI clock, I2C clock |
| Pin 25 | RC4/P1C/SDI/SDA — Bidirectional I/O, PWM output, SPI data in, I2C data |
| Pin 26 | RC5/SDO — Bidirectional I/O, SPI data out |
| Pin 27 | RC6/TX/CK — Bidirectional I/O, EUSART transmit, EUSART clock |
| Pin 28 | RC7/RX/DT — Bidirectional I/O, EUSART receive, EUSART data |
| Pin 29 | RE3/MCLR/VPP — Master clear (reset), programming voltage |
| Pin 30 | RE0/AN6 — Bidirectional I/O, analog channel 6 |
| Pin 31 | RE1/AN7 — Bidirectional I/O, analog channel 7 |
| Pin 32 | RE2/AN21 — Bidirectional I/O, analog channel 21 |
| Pin 33 | VDD — Positive supply voltage |
| Pin 34 | VSS — Ground reference |
| Pin 35 | RD0/AN16/P3D — Bidirectional I/O, analog channel 16, PWM output |
| Pin 36 | RD1/AN17/P3C — Bidirectional I/O, analog channel 17, PWM output |
| Pin 37 | RD2/AN18/P3B — Bidirectional I/O, analog channel 18, PWM output |
| Pin 38 | RD3/AN19/P3A/CCP2 — Bidirectional I/O, analog channel 19, PWM output, capture/compare/PWM |
| Pin 39 | RD4/AN20 — Bidirectional I/O, analog channel 20 |
| Pin 40 | RD5/P2B — Bidirectional I/O, PWM output |
Typical Applications
PIC16LF724T-I/MV is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF724T-I/MV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- Mid-density 7 KB Flash with full nanoWatt XLP and industrial-temperature grade (vs PIC16LF722T-I/MV)
- Smaller footprint drop-in with more peripherals versus the original PIC16F722 baseline (vs PIC16LF722T-I/MV)
- Balanced Flash vs RAM; the 724 is the sweet spot for battery-powered control loops (vs PIC16LF727T-I/MV)
Design Notes
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.
Compliance Information
RoHS compliant per Microchip product page; Pb-free NiPdAu lead finish. Not AEC-Q100 qualified - choose PIC16F/dsPIC automotive parts for vehicle applications.
