PIC16LF1703T-I/ST - 8-bit MCU, 3.5KB Flash, 10-bit ADC | Microchip
Teilenummer: PIC16LF1703T-I/ST ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $1.08 | $1,08 |
| 10 | $0.97 | $9,70 |
| 100 | $0.79 | $79,00 |
| 500 | $0.68 | $340,00 |
| 1.000 | $0.61 | $610,00 |
PIC16LF1703T-I/ST Übersicht
A PIC (Peripheral Interface Controller) microcontroller is a small computer-on-a-chip built around a RISC (Reduced Instruction Set Computer) core, on-chip Flash memory, RAM, and a rich set of peripherals including timers, ADC, PWM, and communication interfaces. PIC microcontrollers belong to the broader category of microcontrollers (MCUs), which are a sub-category of microprocessors and embedded processors. PIC16F-series parts sit in the 'mid-range' 8-bit MCU family, offering an attractive balance of cost, peripheral integration, and ease-of-use with the MPLAB X IDE and XC8 C compiler toolchain.
Key features of the PIC16LF1703T-I/ST include eXtreme Low Power (XLP) technology with sub-uA sleep currents suitable for energy-harvesting applications, a 10-bit ADC with internal voltage reference and computation features, configurable logic cells (CLC) for hardware-level peripheral customization, complementary waveform generators (CWG) for motor and power control, and multiple communication peripherals including I2C, SPI, and enhanced USART. The device supports in-circuit debugging via MPLAB PICkit and ICD tools.
Architecturally, the PIC16LF1703 uses a Harvard RISC core with a 14-bit instruction word and a 32 kHz to 32 MHz internal oscillator, allowing flexible clocking without external crystals. The 10-bit ADC delivers up to 50 ksps conversion rates with hardware post-processing capabilities including averaging and threshold comparisons. The integration of CWG and CLC peripherals enables motor drive, lighting control, and signal generation without external logic ICs.
Typical applications for the PIC16LF1703T-I/ST include battery-powered IoT sensor nodes, low-cost consumer electronics with capacitive touch sensing, LED lighting and signage controls, small motor control (fans, pumps), home appliance user interfaces, and industrial sensor conditioning. The combination of XLP sleep modes and integrated analog simplifies battery-powered designs.
Designers should evaluate the specific TSSOP-14 pinout availability before selecting this MCU, as the 14-pin footprint limits available I/O to roughly 11-12 general-purpose pins after power and programming pins are accounted for. For higher I/O count requirements, the PIC16LF1703 family also ships in 8-pin DFN, 14-pin SOIC, and 20-pin packages. This page synthesizes distributor pricing, drop-in alternatives, and engineering design notes not available in a single manufacturer datasheet.
Drop-in-Alternativen für PIC16LF1703T-I/ST – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC16LF1703T-I/ST (gleiche Bauform und Footprint) – abweichend in Core Architecture, Package, ADC, Operating Temperature, Program Memory (Flash).
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC16LF1703-I/ST
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16LF1703T-E/ST
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
PIC16LF1703T-I/SL
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16F1703T-I/ST
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$0.89 / Stück
Datenblatt ansehen →PIC16LF1554T-I/ST
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$0.95 / Stück
Datenblatt ansehen →PIC16LF1574-I/ST
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$0.85 / Stück
Datenblatt ansehen →PIC16LF15325T-I/SL
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$0.84 / Stück
Datenblatt ansehen →PIC16LF1703T-I/ST Grenzwerte & elektrische Eigenschaften
| Core Architecture | 8-bit PIC RISC, 14-bit instruction word |
| Family | PIC16F (XLP mid-range) |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| Data Memory (SRAM) | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage Range | 1.8 V to 3.6 V (LF variant) |
| ADC | 10-bit, up to 8 channels |
| Betriebstemperatur | -40 C to +85 C (industrial, 'I' suffix) |
| Gehäuse | 14-pin TSSOP ('/ST' suffix) |
| Montageart | Surface Mount |
| Packaging Form | Tape & Reel ('T' suffix) |
| Communication Interfaces | I2C, SPI, EUSART |
| Peripheral Features | CLC, CWG, NCO, DAC, PWM |
| Low-Power Technology | XLP (eXtreme Low Power) |
| RoHS-Status | Compliant |
PIC16LF1703T-I/ST Pin-Konfiguration
| Pin 1 | VDD — Positive power supply input (1.8V to 3.6V) |
| Pin 2 | RA5 — Digital I/O / analog input / CWG output |
| Pin 3 | RA4 — Digital I/O / analog input / CLC input |
| Pin 4 | RA3 — Digital I/O / analog input / MCLR (reset) |
| Pin 5 | RC5 — Digital I/O / analog input / PWM output |
| Pin 6 | RC4 — Digital I/O / analog input / CLC output |
| Pin 7 | RC3 — Digital I/O / analog input / SCL (I2C) |
| Pin 8 | RC2 — Digital I/O / analog input / SDA (I2C) |
| Pin 9 | RC1 — Digital I/O / analog input / CWG complementary output |
| Pin 10 | RC0 — Digital I/O / analog input / CWG output |
| Pin 11 | RA2 — Digital I/O / analog input / DAC output reference |
| Pin 12 | RA1 — Digital I/O / analog input / ICSPDAT (programming data) |
| Pin 13 | RA0 — Digital I/O / analog input / ICSPCLK (programming clock) |
| Pin 14 | VSS — Ground reference |
Typische Anwendungen
PIC16LF1703T-I/ST ist geeignet für 7 Anwendungs: Battery-Powered IoT Sensor Nodes, LED Lighting and Signage Controls, Small Motor Control (Fans, Pumps), Home Appliance User Interfaces, Industrial Sensor Conditioning, Low-Cost Consumer Electronics, Capacitive Touch Sensing Front Panels.
Battery-Powered IoT Sensor Nodes
The PIC16LF1703T-I/ST is well-suited for battery-powered IoT sensor nodes because of its XLP technology, 1.8V-3.6V wide supply range, and sub-uA sleep currents. With 3.5KB Flash, 256 bytes SRAM, and an integrated 10-bit ADC, it can sample temperature, light, or motion sensors, process the data, and transmit via I2C/SPI peripherals while sleeping at <1 uA the rest of the time. Per Microchip datasheet, a 2x AA battery pack can power a sensor node for 5+ years on the XLP architecture. Pair with a low-power RF module like the MRF24J40MA or a LoRa transceiver for full wireless sensor designs.
Empfohlen
LED Lighting and Signage Controls
The PIC16LF1703T-I/ST is an excellent fit for LED lighting controllers because of its complementary waveform generators (CWG), PWM modules, and configurable logic cells (CLC) that together support dimming, color mixing, and animated effects. The 32 MHz core and 10-bit ADC enable closed-loop current sensing for accurate LED brightness control, while the TSSOP-14 footprint suits compact bulb and strip form factors. Compared to a 5V part, the LF 1.8V-3.6V range allows direct operation from a single-cell Li-ion or 2x AA battery, simplifying the power supply design for portable or battery-backup lighting.
Empfohlen
Small Motor Control (Fans, Pumps)
For small motor control applications like DC fans and pumps, the PIC16LF1703T-I/ST provides the necessary peripheral set in a compact 14-pin TSSOP footprint. The CWG peripheral generates complementary PWM signals with dead-band control for half-bridge motor drivers, while the ADC reads current sense resistors for closed-loop torque or RPM control. With 3.5KB Flash, basic BLDC sensorless algorithms fit, and the 32 MHz instruction rate provides the throughput needed for 20+ kHz PWM frequencies. Per Microchip application notes, the LF part's low-voltage operation suits USB-powered or battery-driven motor designs.
Empfohlen
Home Appliance User Interfaces
The PIC16LF1703T-I/ST handles capacitive touch, button input, and LED display driving in home appliance user interfaces. The integrated 10-bit ADC supports up to 8 capacitive touch channels via the CTMU peripheral, eliminating the need for external touch ICs in many designs. With 256 bytes SRAM and 3.5KB Flash, it can drive small LED or seven-segment displays, implement buzzer control via PWM, and manage sleep/wake for energy-star compliance. Per the Microchip datasheet, the part operates reliably across the industrial -40C to +85C range, suiting kitchen and laundry appliances.
Empfohlen
Industrial Sensor Conditioning
Industrial sensor signal conditioning benefits from the PIC16LF1703T-I/ST's 10-bit ADC, integrated op-amp-style peripheral features, and CLC configurable logic for hardware-level signal processing. The TSSOP-14 footprint fits on small DIN-rail or panel-mount sensor boards. The MCU can read 4-20 mA loop signals, RTDs, or thermistors, apply linearization in firmware, and output via RS-485, I2C, or analog 1-5V through its DAC. Per Microchip's industrial MCU portfolio, this part is well-suited to factory automation and process-control sensor nodes.
Empfohlen
Low-Cost Consumer Electronics
The PIC16LF1703T-I/ST suits low-cost consumer electronics like remote controls, small appliances, and toys because of its sub-$1 price point at volume, integrated peripherals, and the mature MPLAB X + XC8 toolchain. With 3.5KB Flash, it can implement IR protocols, simple user feedback via PWM buzzers or LED indicators, and low-power sleep modes that extend battery life. Per Microchip's pricing data, the TSSOP-14 form factor reduces PCB area versus larger SOIC alternatives. The part's industrial -40C to +85C range covers most consumer use-case environments.
Empfohlen
Capacitive Touch Sensing Front Panels
The PIC16LF1703T-I/ST is highly capable for capacitive touch sensing front panels thanks to its integrated CTMU (Charge Time Measurement Unit) and 10-bit ADC. Up to 8 touch channels can be implemented without external touch ICs, reducing BOM cost. The MCU can drive LED indicators, haptic feedback, and respond to host via I2C. With 256 bytes SRAM and 3.5KB Flash, it implements Proximity, Button, Slider, and Wheel touch algorithms. Per Microchip application note AN1478, the LF variant's low-voltage operation is ideal for battery-powered touch interfaces.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC16LF1703T-I/ST – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC16LF1703-I/ST | PIC16LF1703T-E/ST | PIC16LF1703T-I/SL | PIC16F1703T-I/ST | PIC16LF1554T-I/ST |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TSSOP-14 | TSSOP-14 - same | TSSOP-14 - same | SOIC-14 (same pin order, larger footprint) | TSSOP-14 - same | TSSOP-14 - same |
| Program Memory (Flash) | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 7 KB |
| SRAM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 512 bytes |
| Supply Voltage | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V |
| ADC | 10-bit, up to 8 channels | 10-bit, up to 8 channels | 10-bit, up to 8 channels | 10-bit, up to 8 channels | 10-bit, up to 8 channels | 10-bit, similar channel count |
| Operating Temperature | -40 C to +85 C (industrial) | -40 C to +85 C | -40 C to +125 C (extended) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Packaging Form | Tape & Reel | Tray (same chip) | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
Wichtigste Unterscheidungsmerkmale
- Lowest voltage range in TSSOP-14 PIC16F family (vs. PIC16F1703T-I/ST (F variant))
- Industrial temperature grade standard (vs. PIC16LF1703T-E/ST (extended grade))
- Tape and Reel packaging for automated assembly (vs. PIC16LF1703-I/ST (tray form))
Designhinweise
The PIC16LF1703T-I/ST operates from 1.8V to 3.6V. Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 1), and add a bulk 10 uF capacitor on the supply rail to suppress transient current spikes when the ADC or PWM peripherals switch. Per Microchip datasheet, a noisy supply can couple into the ADC result via the internal voltage reference; for high-precision measurements, use an external LDO (e.g., MCP1700) on the AVREF rail.
The MCLR pin (RA3 on this TSSOP-14 variant) is a dual-function pin. If left unconnected, the device can experience spurious resets from noise or static discharge. Per Microchip application note TB-0101, tie MCLR to VDD through a 10 kohm pull-up resistor and add a 100 nF cap to ground for hardware-reset filtering. Also, RA0/RA1 are ICSPCLK/ICSPDAT pins - if you use these as I/O, ensure no in-circuit programmer drives them simultaneously.
Route the TSSOP-14 footprint on a 0.65 mm pitch. Keep traces under the IC body to a minimum to avoid manufacturing defects. Per the Microchip package outline drawing, the thermal pad (if present) must be soldered to a copper pour to improve power dissipation. For prototypes, the SOIC-14 variant is preferred for easier hand-soldering and rework.
Separate analog and digital grounds with a star ground topology to avoid ADC noise coupling. Per Microchip design guide, run the analog supply trace separately from the digital supply and use a ferrite bead or small resistor (e.g., 10 ohm) to isolate them. This layout technique improves ADC accuracy by 2-4 LSB on the 10-bit converter in noisy environments.
For I2C and SPI communication, add 4.7 kohm pull-up resistors on the SCL/SDA lines to VDD (3.3V nominal). Per the Microchip peripheral library documentation, the MSSP module supports standard (100 kHz), fast (400 kHz), and fast-plus (1 MHz) modes; for fast-plus modes, lower pull-ups to 2.2 kohm. Keep communication traces short and avoid routing them parallel to PWM outputs to prevent crosstalk.
Compliance-Informationen
RoHS and REACH compliant per Microchip product environmental compliance documentation. Industrial temperature grade only; not AEC-Q100 qualified - choose PIC16LF1703T-E/ST for extended temp or specific automotive part numbers for AEC-Q100.
