PIC16F1703-I/ST - 8-Bit 32MHz 3.5KB Flash MCU | Microchip
Teilenummer: PIC16F1703-I/ST ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $1.62 | $1,62 |
| 10 | $1.46 | $14,60 |
| 100 | $1.15 | $115,00 |
| 500 | $0.96 | $480,00 |
| 1.000 | $0.84 | $840,00 |
PIC16F1703-I/ST Übersicht
A microcontroller (MCU) is an integrated circuit that combines a CPU, program memory, RAM, and peripherals on a single die. Within the product taxonomy, the PIC16F1703 sits in the 8-bit MCU tier (PIC16 family -> 8-bit MCU -> microcontroller -> embedded IC -> semiconductor), positioned between Microchip's baseline PIC10/PIC12 devices and the 16-bit PIC24/dsPIC families. Its enhanced mid-range core executes most instructions in a single 200 ns cycle at 32 MHz and supports 49 instructions with hardware multiply, making it suitable for general-purpose control with deterministic interrupt latency.
Key differentiating features include eXtreme Low Power (XLP) operation with currents as low as , a 10-bit ADC with up to 28 channels, 8-bit and 5-bit DACs, two op-amps with configurable gain stages, two 10-bit PWM modules, an 8-bit timer, and two comparators. Communication interfaces include EUSART, MSSP (I2C/SPI), and an integrated temperature indicator. PPS remaps digital peripherals to virtually any I/O pin, a critical advantage when designing on the 14-pin TSSOP.
Typical applications span consumer white goods, IoT sensor nodes, LED lighting control, battery-powered instruments, and low-cost motor control. The combination of COG and ZCD enables zero-cross switching for TRIAC dimmers and AC line sensing without external circuitry. In a 14-pin TSSOP, the PIC16F1703 targets designs that need more analog integration than a PIC16F1503 but fewer pins than a 20-pin PIC16F1705 variant.
When designing with this part, leverage PPS to route peripherals after PCB layout is finalized and use the on-chip op-amps to eliminate external analog components. The COG/ZCD combination can replace dedicated dimmer ASICs, while the ADC's hardware Capacitive Voltage Divider (CVD) simplifies touch and proximity sensing without software overhead.
Drop-in-Alternativen für PIC16F1703-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 PIC16F1703-I/ST (gleiche Bauform und Footprint) – abweichend in Core Architecture, Package, Operating Temperature, ADC, Timers.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC16F1703T-I/ST
✅ Drop-In✓ Auf Lager
$0.89 / Stück
Datenblatt ansehen →PIC16F1703-E/ST
✅ Drop-In✓ Auf Lager
$0.78 / Stück
Datenblatt ansehen →PIC16F1503-I/ST
✅ Drop-In✓ Auf Lager
$0.94 / Stück
Datenblatt ansehen →PIC16F1575-I/ST
✅ Drop-In✓ Auf Lager
$1.62 / Stück
Datenblatt ansehen →PIC16F1703-I/ST Grenzwerte & elektrische Eigenschaften
| Core Architecture | PIC16 enhanced mid-range 8-bit RISC |
| CPU Speed | 32 MHz (200 ns instruction cycle) |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| SRAM | 256 bytes |
| EEPROM | 128 bytes |
| Operating Voltage Range | 2.3 V to 5.5 V |
| I/O Pins | 12 |
| ADC | 10-bit, up to 11 channels |
| DAC | 8-bit and 5-bit |
| Op-Amps (on-chip) | 2 |
| Comparators | 2 |
| PWM Modules | 2 x 10-bit |
| Timers | 8-bit Timer0/Timer2, 16-bit Timer1 |
| Communication | EUSART, MSSP (I2C/SPI) |
| Core Independent Peripherals | CLC, COG, ZCD, PPS |
| Gehäuse | 14-pin TSSOP (ST) |
| Betriebstemperatur | -40C to +85C (industrial) |
| Montageart | Surface Mount |
| RoHS-Status | Compliant |
PIC16F1703-I/ST Pin-Konfiguration
| Pin 1 | VDD — Positive power supply (2.3V to 5.5V) |
| Pin 2 | RA5 — Digital I/O / PWM / analog input |
| Pin 3 | RA4 — Digital I/O / analog input |
| Pin 4 | RA3/MCLR/VPP — Master Clear (reset) / programming voltage input |
| Pin 5 | RC5 — Digital I/O / analog input |
| Pin 6 | RC4 — Digital I/O / analog input |
| Pin 7 | RC3 — Digital I/O / analog input |
| Pin 8 | RC2 — Digital I/O / analog input |
| Pin 9 | RC1 — Digital I/O / analog input |
| Pin 10 | RC0 — Digital I/O / analog input |
| Pin 11 | RA2 — Digital I/O / analog input |
| Pin 12 | RA1 — Digital I/O / analog input / OPA1IN+ |
| Pin 13 | RA0 — Digital I/O / analog input / OPA1IN- |
| Pin 14 | VSS — Ground reference |
Typische Anwendungen
PIC16F1703-I/ST ist geeignet für 6 Anwendungs: LED Lighting Control / TRIAC Dimmer, Battery-Powered IoT Sensor Node, Capacitive Touch Sensing Interface, Small Motor Control (Brushed DC / Stepper), Consumer White Goods / Appliance Control, Portable Medical / Health Monitoring.
LED Lighting Control / TRIAC Dimmer
The PIC16F1703-I/ST is well suited for AC mains dimmer designs because of its integrated Complementary Output Generator (COG) and Zero-Cross Detect (ZCD) peripherals, which eliminate the need for external dimming ASICs. The COG generates non-overlapping complementary PWM outputs at programmable dead-band delays, ideal for driving a TRIAC or MOSFET pair synchronized to the AC line. The ZCD detects zero-cross events with hardware triggering, allowing the MCU to wake from sleep at the AC line edge for sub-milliwatt standby power. With 32 MHz CPU and 10-bit ADC for current/voltage feedback, the part supports leading-edge and trailing-edge dimming topologies. The 14-pin TSSOP footprint fits inside GU10 lamp housings and small driver boxes.
Empfohlen
Battery-Powered IoT Sensor Node
The PIC16F1703-I/ST combines XLP extreme-low-power technology with on-chip op-amps for direct sensor signal conditioning, making it ideal for battery-powered wireless sensor nodes. The integrated op-amps can amplify thermocouple, strain-gauge, or photodiode signals without external analog components, while the 10-bit ADC with computation handles oversampling and averaging. The MSSP (I2C/SPI) connects to digital sensors or radio modules, and the EUSART supports LIN or wired communication. Core Independent Peripherals (CLC, COG) handle timing-critical tasks in hardware, allowing the CPU to remain in sleep for extended periods. The 2.3 V minimum operating voltage supports 2x AA alkaline cells down to 2.0 V under load, maximizing battery life.
Empfohlen
Capacitive Touch Sensing Interface
The PIC16F1703-I/ST supports Microchip's mTouch Capacitive Voltage Divider (CVD) technique through its 10-bit ADC with computation, enabling reliable touch/proximity sensing on PCB electrodes without external components. The CVD peripheral handles charge balancing and averaging in hardware, reducing firmware complexity and improving noise immunity. Peripheral Pin Select (PPS) allows touch channels to be remapped to virtually any I/O pin, simplifying PCB layout for multi-button panels. The COG peripheral can drive an LED indicator synchronized with touch events, and the CLC (Configurable Logic Cell) implements custom logic for wake-on-touch without CPU intervention. The TSSOP-14 footprint suits front-panel modules in appliances and industrial controls.
Empfohlen
Small Motor Control (Brushed DC / Stepper)
The PIC16F1703-I/ST is appropriate for low-cost brushed DC and stepper motor control in appliances and small equipment. Two 10-bit PWM modules provide complementary outputs for H-bridge drive, while the COG (Complementary Output Generator) adds hardware dead-band insertion to prevent shoot-through in half-bridges. The on-chip op-amps amplify shunt-resistor current-sense signals directly to the ADC, and the comparators provide hardware cycle-by-cycle overcurrent protection without CPU latency. Peripheral Pin Select (PPS) lets the designer reassign PWM outputs to optimize PCB routing around motor connectors. The 14-pin TSSOP package fits inside motor housings for integrated designs.
Empfohlen
Consumer White Goods / Appliance Control
The PIC16F1703-I/ST targets cost-sensitive consumer appliance designs that need rich analog integration and minimal external components. The on-chip op-amps condition sensor signals (temperature, humidity, current), the 10-bit ADC digitizes them, and the DACs generate reference voltages for sensor bridges. The MSSP and EUSART connect to user-interface displays and communication modules. Core Independent Peripherals (CLC, COG, ZCD) handle AC line synchronization and timing-critical events without CPU load, improving EMI performance. The industrial -40C to +85C temperature range covers appliance environments, and the TSSOP-14 package fits standard white-goods control board form factors.
Empfohlen
Portable Medical / Health Monitoring
The PIC16F1703-I/ST supports low-power portable medical and wellness devices where analog integration and battery life matter. Its on-chip op-amps amplify bioelectric signals (pulse, SpO2 photodiode currents) directly without external instrumentation amplifiers, reducing BOM cost and PCB area. The 10-bit ADC with computation performs averaging and threshold detection in hardware, while the CLC implements custom logic for heart-rate detection without CPU wakeup. XLP sleep currents extend battery life on coin cells or rechargeable Li-ion. The TSSOP-14 package supports compact wrist-worn or handheld form factors. Note: For FDA-regulated medical devices, validate the MCU's documented reliability under the device's specific use-case conditions.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC16F1703-I/ST – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC16F1703T-I/ST | PIC16F1703-E/ST | PIC16F1503-I/ST | PIC16F1575-I/ST |
|---|---|---|---|---|---|
| Package | 14-pin TSSOP (ST) | 14-pin TSSOP (ST) - same | 14-pin TSSOP (ST) - same | 14-pin TSSOP (ST) - same | 14-pin TSSOP (ST) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 14 KB |
| RAM | 256 B | 256 B | 256 B | 256 B | 1 KB |
| On-Chip Op-Amps | 2 | 2 | 2 | 0 | 0 |
| COG / ZCD | Yes | Yes | Yes | No | No |
| PWM Resolution | 2 x 10-bit | 2 x 10-bit | 2 x 10-bit | 2 x 10-bit | 4 x 16-bit |
| PPS | Yes | Yes | Yes | No | Yes |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Temperature Range | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) |
Wichtigste Unterscheidungsmerkmale
- On-chip op-amps eliminate external analog ICs (vs. PIC16F1503-I/ST)
- 16-bit PWM resolution not available (vs. PIC16F1575-I/ST)
- COG and ZCD for AC line dimming (vs. PIC16F1575-I/ST)
- Peripheral Pin Select for flexible PCB layout (vs. PIC16F1503-I/ST)
Designhinweise
Place a 0.1 uF decoupling capacitor as close as possible to the VDD pin (pin 1) of the PIC16F1703-I/ST, with a trace length under 5 mm. Add a bulk 10 uF capacitor on the same rail near the MCU. The TSSOP-14 ground pad (VSS, pin 14) should connect directly to a low-impedance ground plane via a short, wide trace or via-in-pad if the design permits. PPS allows you to remap peripherals after layout is finalized, reducing pinout-related rework.
Configure the PIC16F1703-I/ST to use Sleep mode between sensor reads to achieve XLP currents. According to the Microchip datasheet, typical sleep current is in the sub-microampere range. Estimated: at 3.3 V VDD with watchdog disabled, sleep current is below 1 uA. Use the RTCC with a 32.768 kHz external crystal for timekeeping during sleep, allowing periodic wake-ups without a high-power timer running.
When using the on-chip op-amps for high-impedance sensor signals, route the op-amp inputs (RA0/RA1) with short traces and guard the inputs from digital switching noise. The TSSOP-14 package has limited pin spacing; place analog input traces on an inner layer with ground shielding if the application has high di/dt noise (such as motor control or TRIAC dimming). Use the CLC peripheral to gate digital signals during sensitive analog measurements.
Do not leave the MCLR pin (pin 4) floating - always tie it to VDD via a 10 kohm pull-up resistor, or to the output of a reset supervisor for improved noise immunity. Configure unused I/O pins as outputs low to minimize power consumption and noise injection. When using COG to drive an H-bridge, set the dead-band delay to at least 200 ns to prevent shoot-through during FET transitions.
Compliance-Informationen
RoHS and REACH compliance per Microchip product page. Industrial temperature grade (-40C to +85C). Not AEC-Q100 qualified; for automotive designs select the AEC-Q100 equivalent or add appropriate qualification documentation. Lead-free and halogen-free per Microchip environmental compliance statements.