PIC16F1703-I/P - 32MHz 8-Bit MCU | Microchip Technology
Référence : PIC16F1703-I/P ✓ ActifPIC16F1703-I/P Présentation
An 8-bit microcontroller is a compact embedded-processing component that executes firmware from embedded flash memory and interacts with sensors, actuators, communications links, and human-machine interfaces. The PIC16F1703 belongs to the PIC16 8-bit MCU family, combining a general-purpose CPU with analog conversion and programmable peripherals in one integrated device. Its XLP architecture emphasizes low-power operation for battery-powered and duty-cycled products.
The device provides 2K words of 14-bit program words within 3.5 KB of flash, together with 256 bytes of data RAM. Its 10-bit ADC supports embedded measurement systems without requiring a separate converter. Two on-chip operational amplifiers can implement local gain, buffering, filtering, or signal-conditioning functions, while Peripheral Pin Select allows supported digital functions to be assigned to alternative I/O pins, reducing board-routing constraints.
Core Independent Peripherals execute selected system functions autonomously, reducing interrupt-handler overhead and improving responsiveness in timing-sensitive applications. Zero Cross Detect supports applications that need to identify AC signal crossings, including motor-control, lighting, and power-conversion systems. Together, these resources make the PIC16F1703 useful when designers need more than a basic GPIO controller but want to retain the simplicity of an 8-bit architecture.
Typical uses include motor and valve control, LED lighting, temperature monitoring, compact power supplies, industrial controls, consumer accessories, and low-power sensor nodes. The -40 °C to +85 °C industrial temperature range supports operation across industrial and commercial environments, while the 14-pin DIP package simplifies prototyping, inspection, and through-hole assembly.
Designers should reserve every I/O pin for its intended function, provide the decoupling and programming connections required by the Microchip datasheet, and account for the ADC's acquisition and conversion sequence in time-sensitive control loops. The DIP footprint also requires adequate lead spacing and through-hole clearance in compact assemblies.
This product page combines the manufacturer's device and datasheet information with package-level engineering guidance, comparison parameters, application guidance, and direct purchasing actions. It is intended to help engineers determine whether the PIC16F1703-I/P provides the required memory, analog resources, peripheral set, package, and operating range without opening multiple documents.
Alternatives de remplacement direct pour PIC16F1703-I/P — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC16F1703-I/P (même facteur de forme et même empreinte) — différant par Package, ADC, Core Architecture, Operating Temperature, Program Memory (Flash).
PIC16LF1703-I/P
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →PIC16F1704-I/P
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →PIC16F1713-I/P
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC16F1714-I/P
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC16F1715-I/P
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC16F1703-I/P Valeurs maximales et caractéristiques électriques
| Product Type | 8-bit advanced analog flash microcontroller |
| Fréquence d'horloge maximale | 32 MHz |
| Program Memory | 3.5 KB flash (2K x 14-bit words) |
| Data Memory | 256 bytes RAM |
| ADC Resolution | 10 bits |
| On-Chip Operational Amplifiers | 2 operational amplifiers |
| Boîtier | 14-pin through-hole DIP |
| Architecture | PIC XLP 8-bit architecture |
| Peripheral Pin Select | Supported |
| Core Independent Peripherals | COG and Zero Cross Detect |
| Plage de température de fonctionnement | -40 °C to +85 °C |
| Style de montage | Through-hole |
| Device Variant | Industrial temperature grade |
| Program Memory Type | Flash |
| Core Architecture | 8-bit |
Configuration des broches de PIC16F1703-I/P
| Broche 1 | RA0/AN0/C1IN+ — Digital I/O, analog input, and comparator input |
| Broche 2 | RA1/AN1/C1IN- — Digital I/O, analog input, and comparator input |
| Broche 3 | RA2/AN2/VREF-/CVREF — Digital I/O, analog input, and voltage-reference function |
| Broche 4 | RA3/AN3/VREF+/C1IN — Digital I/O, analog input, reference, and comparator function |
| Broche 5 | RA4/T0A/C1OUT — Digital I/O, timer input, and comparator output |
| Broche 6 | RA5/AN4/SS/C2IN+ — Digital I/O, analog input, serial-select, and comparator input |
| Broche 7 | RC0/AN5/C2IN- — Digital I/O, analog input, and comparator input |
| Broche 8 | RC1/AN6/C2OUT — Digital I/O, analog input, and comparator output |
| Broche 9 | RC2/AN7/OSC1/CLKIN — Digital I/O, analog input, oscillator input, and external clock input |
| Broche 10 | RC3/AN8/OSC2/CLKOUT — Digital I/O, analog input, oscillator output, and clock output |
| Broche 11 | RC4/AN9/C3IN — Digital I/O, analog input, and comparator input |
| Broche 12 | RC5/AN10/C3IN+ — Digital I/O, analog input, and comparator input |
| Broche 13 | VDD — Positive supply voltage |
| Broche 14 | VSS — Ground reference |
Applications typiques
PIC16F1703-I/P convient pour 6 applications: Motor and Valve Control, Industrial Temperature Monitoring, LED Lighting Control, Compact Power-Supply Controller, Battery-Powered Sensor Node, Consumer Accessory Interface.
Motor and Valve Control
PIC16F1703-I/P fits compact motor or valve controllers that require local sensing and autonomous peripheral functions. The 32 MHz 8-bit core provides control-loop headroom, while the 10-bit ADC can monitor current, position, or temperature. Core Independent Peripherals can handle repetitive timing away from the main firmware, reducing interrupt overhead, and Zero Cross Detect is useful when the controller must identify AC voltage crossings. The two on-chip operational amplifiers can condition sensor or feedback signals without adding separate analog ICs. For a new PCB, verify every motor-interface pin against the package-specific pin table and preserve the datasheet's decoupling and programming connections.
Recommandé
Industrial Temperature Monitoring
The PIC16F1703-I/P can serve as the local controller in an industrial temperature-monitoring module. Its 10-bit ADC samples the output of a resistive, thermistor, or ratiometric sensor, while the two on-chip operational amplifiers can provide buffering or gain stages close to the sensing node. The 3.5 KB flash capacity supports calibration tables, filtering, fault handling, and a communication routine, and 256 bytes of RAM provides working space for control and diagnostic state. Its -40 °C to +85 °C industrial range suits equipment distributed across factories, buildings, and process environments. Use the manufacturer's ADC and pinout tables to establish input ranges, sampling timing, and analog-pin assignments.
Recommandé
LED Lighting Control
PIC16F1703-I/P is appropriate for LED lighting systems that need dimming, current monitoring, and flexible I/O assignments. Peripheral Pin Select can move supported digital functions among compatible pins, which helps route communication, fault indication, and dimming signals around a constrained 14-pin DIP layout. The 32 MHz core can execute PWM-based dimming and update multiple lighting channels, while the ADC can supervise a current-sense signal. Zero Cross Detect can synchronize control events to an AC waveform when the application uses mains-derived or AC-referenced signals. The two internal operational amplifiers may also support current-feedback conditioning. Validate isolation, voltage levels, and safety boundaries independently for every mains-connected design.
Recommandé
Compact Power-Supply Controller
PIC16F1703-I/P can supervise compact power-conversion products where digital control, monitoring, and status reporting must share a low-cost MCU. The 10-bit ADC can observe output voltage or current, while the two on-chip operational amplifiers can condition feedback signals around the power stage. Core Independent Peripherals can supervise repetitive events with reduced firmware intervention, and the 32 MHz processor leaves processing headroom for soft-start sequencing, fault latching, and communications. Zero Cross Detect may assist in AC-related timing functions where appropriate. Designers should implement protection independently, confirm ADC signal limits, and follow the datasheet's grounding and decoupling guidance to prevent switching noise from corrupting measurements.
Recommandé
Battery-Powered Sensor Node
PIC16F1703-I/P supports battery-powered sensor nodes by combining low-power PIC XLP design with integrated analog resources. The 10-bit ADC removes the need for a separate converter in many measurement channels, and the two on-chip operational amplifiers can perform local buffering before digitization. The 32 MHz clock supports responsive sampling and short active intervals, while flash retains firmware across power cycles. Peripheral Pin Select can reduce board-level I/O conflicts in compact sensor assemblies. Actual standby and active current depend on the selected clock configuration, sleep mode, ADC operation, and external sensor load, so calculate the duty cycle before defining battery life. A 14-pin DIP format also favors prototypes and panelized through-hole assemblies.
Recommandé
Consumer Accessory Interface
PIC16F1703-I/P can manage buttons, indicators, sensors, and simple actuators in a consumer accessory where a larger processor would add unnecessary cost. The 3.5 KB flash provides room for a state machine, device logic, and communication handling, while 256 bytes of RAM supports event buffering and interface processing. The 10-bit ADC handles analog controls or presence sensing, and Peripheral Pin Select helps optimize a limited 14-pin footprint. A 32 MHz core supports debouncing, LED effects, and responsive command handling. The through-hole DIP package makes the design straightforward to prototype, inspect, and repair. Confirm the -40 °C to +85 °C operating range against the product's environmental requirements before production release.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC16F1703-I/P — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC16LF1703-I/P | PIC16F1704-I/P | PIC16F1713-I/P | PIC16F1714-I/P | PIC16F1715-I/P |
|---|---|---|---|---|---|---|
| Package | 14-pin DIP | 14-pin DIP | 14-pin DIP | 14-pin DIP | 14-pin DIP | 14-pin DIP |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | 8-bit | 8-bit | 8-bit | 8-bit | 8-bit | 8-bit |
Principaux différenciateurs
- Integrated analog signal chain (vs ATTINY40-XUR)
- 32 MHz control performance (vs ATTINY5-MAHR)
- Autonomous peripheral operation (vs PIC16F1704-I/P)
Notes de conception
Assign the PIC16F1703-I/P pins directly from the 14-pin device pin table and preserve the oscillator and programming functions required by the selected operating mode. The 14-pin DIP footprint provides generous lead spacing, but adjacent components still need enough clearance for soldering and inspection. Place the supply decoupling capacitor close to VDD and VSS, and route analog inputs away from switching nodes and high-current return paths.
Treat analog inputs, operational-amplifier connections, and the ADC as one signal-chain design. Keep sensor traces short, use a quiet ground reference for the analog section, and avoid sharing high-current return paths directly beneath sensitive inputs. If the two internal operational amplifiers amplify a sensor signal, check their configured input and output limits against the 1.8 V to 5.5 V operating range and the analog pin assignments shown in the datasheet.
Do not assume that identical 14-pin packages guarantee identical peripheral behavior. A replacement device can assign different functions to the same physical pins even when it retains the same memory size and 8-bit core. Before approving a substitute, compare oscillator pins, programming interface, ADC channels, comparator functions, timer channels, peripheral pin-select mappings, interrupt behavior, and maximum pin voltages. Update the firmware configuration only after the device table has been checked line by line.
The PIC16F1703-I/P supports a 1.8 V to 5.5 V operating range, so external circuitry must remain compatible with the selected rail. Do not allow signal pins to exceed the device's absolute-maximum limits, especially on pins connected to external circuitry. Use the manufacturer electrical-characteristics table to establish operating and absolute-maximum values rather than inferring them from nominal supply voltage. Confirm the final 5 V and 3.3 V designs against temperature and supply tolerances.
Informations de conformité
The device is an industrial-temperature 8-bit microcontroller rather than an automotive-qualified AEC-Q100 product. Compliance declarations are not stated in the cited manufacturer page or datasheet snippets.
