PIC16F685-E/P - 20MHz 8-Bit Flash MCU | Microchip
N.º da peça: PIC16F685-E/P ✓ AtivoPIC16F685-E/P Visão geral
A PIC microcontroller is a compact programmable controller built around the PIC16 mid-range x14 architecture. Within the product hierarchy, it is an 8-bit RISC microcontroller, a member of the PIC family, and an embedded processing platform used for digital control, data acquisition, and peripheral management. Its flash-based program memory supports field reprogramming, while its integrated EEPROM retains calibration, configuration, or other nonvolatile data without consuming RAM.
Key features include 7 KB of flash program memory, 256 bytes of SRAM, 256 bytes of EEPROM, and a 12-channel 10-bit ADC. The 20 MHz clock capability supports faster instruction execution than lower-speed members of the same device family, while the 2.0 V to 5.5 V operating range accommodates common low-voltage embedded systems. The PIC16F685-E/P is identified as an active product in the supplied lifecycle information.
The device uses the mid-range x14 instruction architecture and integrates digital I/O with analog measurement. Its 18 I/O pins provide interfaces for switches, sensors, indicators, actuators, and communication peripherals, while the ADC permits direct acquisition of up to 12 analog channels. Onboard EEPROM separates persistent parameter storage from volatile working memory, simplifying designs that must retain setup information through a power cycle.
Typical applications include industrial control panels, environmental monitoring, appliance controllers, instrumentation, low-voltage sensor nodes, and compact embedded products requiring a conventional 8-bit control architecture. The 20-pin PDIP package is also well suited to prototypes, educational platforms, through-hole assemblies, and repair-oriented designs where socketed or manually assembled parts are preferred.
Designers should verify the exact pin functions, analog-channel mapping, oscillator options, and required decoupling against the manufacturer datasheet before layout. The 2.0 V to 5.5 V device range does not imply that every peripheral or I/O pin has identical voltage limits, so external-interface constraints must be checked separately.
This page consolidates the supplied manufacturer and distributor information with lifecycle status, sourcing details, application guidance, and verified same-family replacement information. It is intended to help engineers locate the datasheet, compare the MCU with its industrial-temperature counterpart, and evaluate the PIC16F685-E/P for an embedded control design.
Alternativas drop-in para PIC16F685-E/P — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC16F685-E/P (mesmo formato e footprint) — diferindo em Package, Mounting Type, Operating Temperature, Program Memory (Flash), Timers.
PIC16F685-I/P
✅ Drop-InConsulte o preço
Ver ficha técnica →PIC16F685-E/P Classificações máximas e características elétricas
| Microcontroller Type | 8-bit Flash PIC mid-range microcontroller |
| Maximum Clock Speed | 20 MHz |
| Program Memory | 7 KB (4K x 14) |
| Data Memory | 256 x 8 bytes EEPROM |
| RAM | 256 x 8 bytes |
| General-Purpose I/O Pins | 18 pins |
| ADC Resolution | 10 bits |
| ADC Channels | 12 channels |
| Tensão de alimentação de operação | 2.0 V to 5.5 V |
| Encapsulamento | 20-pin PDIP |
| Process Technology | CMOS |
| Program Memory Type | Flash |
| Low-Power Technology | nanoWatt Technology |
| Architecture | Mid-range x14 |
| Status do ciclo de vida | Active |
| Lead-Free Packaging | Lead free |
Guia de Configuração de Pinos do PIC16F685-E/P 20-pin pdip
Configuração de pinos para PIC16F685-E/P (pacote 20-pin pdip). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para PIC16F685-E/P.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
PIC16F685-E/P é adequado para 6 aplicaçãos: Industrial Control and Sensor Interface, Environmental Monitoring Controller, Appliance and Embedded System Controller, Battery-Powered Instrumentation, Data Acquisition and Analog Monitoring, Educational and Rapid Prototyping Platform.
Industrial Control and Sensor Interface
PIC16F685-E/P fits compact industrial control boards that combine digital inputs, analog measurement, and persistent configuration. Its 18 general-purpose I/O pins can connect switches, status indicators, relays, and discrete sensors, while the integrated 12-channel 10-bit ADC measures analog process signals. The 256 bytes of EEPROM are useful for storing calibration or setup data separately from the 256 bytes of RAM. Operation from 2.0 V to 5.5 V supports common industrial logic rails. Designers should select the temperature grade required by the product specification and confirm ADC, oscillator, and I/O limits against the current datasheet.
Recomendado
Environmental Monitoring Controller
PIC16F685-E/P is suitable for a low-cost environmental monitor that periodically measures sensors and controls indicators or a communications interface. The 12-channel 10-bit ADC supports multiple analog inputs, and the 18 I/O pins provide room for digital sensor triggers, alarm outputs, and status LEDs. Its 7 KB of flash program memory accommodates embedded control firmware, while EEPROM can preserve sampling intervals, calibration coefficients, or installation settings. The 2.0 V to 5.5 V operating range permits operation from low-voltage regulated supplies. Firmware should include appropriate settling, averaging, and sensor-conditioning routines because raw ADC readings alone do not provide calibrated environmental measurements.
Recomendado
Appliance and Embedded System Controller
PIC16F685-E/P can serve as the central controller in a small appliance or embedded product requiring discrete control and analog monitoring. Its 18 I/O pins can operate buttons, indicator lamps, latches, and discrete actuators, while the 20 MHz flash microcontroller provides a conventional 8-bit execution platform. Onboard EEPROM allows operating modes, calibration values, or counters to survive power loss without consuming the limited 256-byte RAM. The 20-pin PDIP package is particularly convenient for through-hole prototypes, educational hardware, and serviceable assemblies. Designers should account for motor or relay transients with suitable external protection and verify that every selected I/O pin remains valid at the chosen supply voltage.
Recomendado
Battery-Powered Instrumentation
PIC16F685-E/P is applicable to battery-powered instrumentation where a low-voltage 8-bit controller must balance processing capability, analog input, and nonvolatile data retention. Its 2.0 V minimum operating voltage allows use with low-voltage regulated power systems, and the nanoWatt technology designation identifies the family’s low-power design focus. The 12-channel ADC can acquire several sensor outputs, while EEPROM preserves user settings or calibration information across battery replacement. Because the supplied data does not provide detailed sleep-mode currents or wake-up timing, those values must be checked in the manufacturer datasheet before estimating operational life. Firmware should disable unused peripherals and place the device into an appropriate low-power state between measurements.
Recomendado
Data Acquisition and Analog Monitoring
PIC16F685-E/P supports small data-acquisition systems that require more than a binary logic controller but do not need a high-performance digital processor. Its 12-channel 10-bit ADC can sample multiple analog inputs, while 7 KB of flash provides space for acquisition sequencing, filtering, and local data handling. The 18 I/O pins can implement digital triggers, range selection, or communication signaling, and 256 bytes of EEPROM can retain instrument setup data. A practical design should define the ADC reference, acquisition time, input impedance, and signal bandwidth because those details are not specified in the supplied distributor snippets. The 20-pin PDIP package also simplifies prototyping and through-hole inspection.
Recomendado
Educational and Rapid Prototyping Platform
PIC16F685-E/P is well suited to educational circuits and rapid prototypes because it combines flash programmability, EEPROM, ADC, and ample I/O in a conventional 20-pin PDIP package. Students can connect switches and LEDs to the 18 I/O pins while using the 12-channel 10-bit ADC for potentiometers or analog sensors. EEPROM provides a simple way to demonstrate persistent data storage, and the 20 MHz clock rate supports real-time control examples. Through-hole construction makes breadboard or socket-based assembly straightforward. Developers should avoid inferring every peripheral or pin function from search snippets and should use the official package drawing for schematic and layout work. The active lifecycle status reported in the supplied data also favors prototype designs that may progress toward small production runs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16F685-E/P — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16F685-I/P |
|---|---|---|
| Package | 20-pin PDIP | 20-pin PDIP - same |
| Brand | Microchip Technology | Microchip Technology |
| Architecture | Mid-range x14 | Mid-range x14 |
| Maximum Clock Speed | 20 MHz | 20 MHz |
| Program Memory | 7 KB (4K x 14) Flash | 7 KB (4K x 14) Flash |
| RAM | 256 x 8 bytes | 256 x 8 bytes |
| EEPROM | 256 x 8 bytes | 256 x 8 bytes |
| ADC | 12-channel, 10-bit | 12-channel, 10-bit |
| Operating Supply Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Temperature-Grade Code | E/P | I/P - industrial-temperature ordering code |
Principais diferenciais
- Same-package temperature-grade option (vs PIC16F685-I/P)
- Integrated analog acquisition with ample control I/O (vs PIC16F685-I/P)
- Persistent configuration storage without external memory (vs PIC16F685-I/P)
Notas de projeto
Design the supply network around the verified 2.0 V to 5.5 V operating range, but do not assume every I/O or peripheral has identical voltage-domain limits. Place the device’s required supply and ground connections directly beside their package pins according to the official datasheet layout. Confirm the reference configuration, decoupling values, and brownout behavior in the manufacturer document rather than deriving them solely from distributor summaries.
Keep analog inputs and ADC-capable I/O pins away from fast-switching nodes and noisy return paths. Use a compact ground reference for analog circuitry, route sensor inputs away from high-current switching loops, and minimize copper area around sensitive inputs. The supplied data establishes a 12-channel 10-bit ADC but does not provide acquisition-time or layout guidance, so the manufacturer’s analog layout instructions remain the controlling reference.
Do not treat a shared PDIP footprint as proof that every ordering suffix is interchangeable. PIC16F685-I/P matches the package, but the I and E ordering codes denote different temperature grades, and temperature limits are not supplied here. Before substitution, compare operating-temperature requirements, oscillator configuration, peripheral availability, and the programming interface. Also verify the complete 20-pin assignment from the official datasheet because the supplied snippets do not list all pin names.
Informações de conformidade
The supplied search result identifies the package as lead free, but the provided data does not explicitly confirm RoHS, REACH, halogen-free, or conflict-minerals status. AEC-Q100 is not applicable because this is a general-purpose microcontroller rather than an automotive-qualified device in the supplied data.
