PIC16F57-E/SO - 20MHz 3KB 8-Bit Flash MCU | Microchip
N.º da peça: PIC16F57-E/SO ✓ AtivoPIC16F57-E/SO Visão geral
A microcontroller is a programmable semiconductor that integrates a CPU, nonvolatile program memory, data memory, and peripheral interfaces into one device. The PIC16F57 belongs to the PIC16 family and uses the PIC16 CPU architecture. Compared with larger 32-bit microcontrollers, its simpler instruction set and smaller memory organization can reduce firmware complexity in cost-sensitive control systems while preserving the peripheral integration needed for standalone operation.
The verified headline specifications include 20 MHz maximum operating frequency, 3 KB of Flash memory organized as 2K × 12, 72 bytes of on-chip data RAM, and 20 I/O lines. Flash memory supports in-circuit reprogramming and is appropriate for firmware that must be updated during production or field maintenance. The 20 MHz clock supports faster control-loop execution and reduces execution time compared with lower-speed PIC16 devices, although the final system timing still depends on the selected oscillator and peripheral configuration.
PIC16F57 devices use Microchip’s 8-bit PIC architecture with single-word instructions and a 200 ns instruction execution capability. The device provides general-purpose digital I/O for switches, relays, indicators, sensors, and discrete actuators. Because the verified source set does not expose the complete peripheral list, detailed timer, comparator, interrupt, and electrical limits should be checked in the manufacturer’s PIC16F57 documentation before final schematic or firmware sign-off.
Typical uses include industrial control modules, appliance controllers, small motor-control boards, instrumentation interfaces, and embedded automation products. Its 20 I/O lines allow a board to connect multiple digital inputs and outputs without requiring an external I/O expander. The 3 KB Flash space is best suited to compact control logic rather than large protocol stacks, graphical interfaces, or data-intensive workloads.
Designers should verify the exact operating-voltage limits, temperature grade, oscillator configuration, programming interface, and all peripheral pin assignments from the manufacturer datasheet. PCB layouts should route the programming and reset functions for reliable field programming, and firmware should include brownout, startup, and unused-pin handling appropriate to the selected configuration.
This page combines verified distributor pricing, package information, temperature-grade alternatives, parameter comparisons, and practical selection guidance. It also distinguishes true same-package drop-in choices from related PIC16 devices that require different footprints, helping engineers avoid mechanically incompatible replacements.
Alternativas drop-in para PIC16F57-E/SO — 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 PIC16F57-E/SO (mesmo formato e footprint) — diferindo em Package, Program Memory Size, Timers, Mounting Type, Operating Temperature.
PIC16F57-I/SO
✅ Drop-InConsulte o preço
Ver ficha técnica →PIC16F57T-I/SO
✅ Drop-InConsulte o preço
Ver ficha técnica →PIC16F57T-E/SO
✅ Drop-In ⚠️ Especificações não verificadasConsulte o preço
Ver ficha técnica →PIC16F57-E/SO Classificações máximas e características elétricas
| Microcontroller Type | 8-bit RISC microcontroller |
| CPU Architecture | PIC16 8-bit RISC |
| Frequência máxima de clock | 20 MHz |
| Instruction Execution Time | 200 ns |
| Instruction Set | 33 single-word instructions |
| Program Memory Type | Flash |
| Program Memory Size | 3 KB (2K × 12) |
| Data Memory Size | 72 bytes RAM |
| General-Purpose I/O | 20 lines |
| Encapsulamento | 28-pin SOIC |
| Tipo de montagem | Surface mount |
| Lifecycle Stage | Active |
| Automotive Application | Supported according to manufacturer product-page snippet |
Guia de Configuração de Pinos do PIC16F57-E/SO 28-pin soic
Configuração de pinos para PIC16F57-E/SO (pacote 28-pin soic). 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 PIC16F57-E/SO.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
PIC16F57-E/SO é adequado para 6 aplicaçãos: Industrial Control Modules, Appliance and Household Controllers, Small Motor and Stepper Control, Instrumentation and Sensor Interfaces, Embedded Automation and Auxiliary Control, Automotive and Vehicle Accessories.
Industrial Control Modules
The PIC16F57-E/SO fits compact industrial control modules because it combines 20 general-purpose I/O lines with a 20 MHz clock and 200 ns instruction execution in a 28-pin SOIC package. Its 3 KB Flash space can hold deterministic sequencing, input scanning, and output-control logic without requiring a larger microcontroller. The 20 I/O pins reduce the need for an external I/O expander when the module handles switches, status indicators, relays, and discrete sensors. Before release, engineers should verify the device's exact supply-voltage and temperature limits against the industrial environment, as well as confirm reset, oscillator, and programming behavior in the manufacturer documentation.
Recomendado
Appliance and Household Controllers
PIC16F57-E/SO is appropriate for appliance controllers where a dedicated MCU must operate user interfaces, switches, lamps, and small electromechanical loads. Its 20 I/O lines provide ample digital connections for panel inputs and discrete outputs, while 3 KB of Flash supports compact state-machine firmware rather than a large application framework. A 20 MHz clock provides more timing headroom than lower-speed 8-bit devices when multiple interrupts and periodic outputs are active. The 28-pin SOIC footprint supports automated assembly, but the final design must validate supply tolerance, brownout behavior, and all peripheral pin functions from the PIC16F57 documentation.
Recomendado
Small Motor and Stepper Control
The PIC16F57-E/SO can serve as the sequencing controller for small motors, solenoids, stepper systems, and valve actuators where accurate I/O timing is more important than high processor throughput. Its 20 MHz maximum clock and 200 ns instruction execution allow rapid pulse and direction updates, while 20 general-purpose I/O lines can accommodate control signals and feedback inputs. The 72-byte RAM is sufficient for short motion tables and state variables but not large buffering workloads. Designers should preserve timing margin for driver latency and verify every motor-interface signal against the actual pinout before releasing the PCB.
Recomendado
Instrumentation and Sensor Interfaces
PIC16F57-E/SO is useful in compact instrumentation where the controller reads discrete sensors, evaluates operating conditions, and drives displays or alarm outputs. Its 20 I/O lines can accommodate digital sensors, switches, status LEDs, and interface signals, while the 200 ns instruction execution supports timely input sampling and control responses. The 3 KB Flash capacity favors concise measurement sequencing and calibration logic, while the 72-byte RAM is suitable for temporary values rather than large sample buffers. Because the verified data does not enumerate every analog peripheral, designers should use the complete manufacturer datasheet to determine whether the required sensor interface belongs on this MCU or requires an external converter.
Recomendado
Embedded Automation and Auxiliary Control
PIC16F57-E/SO can act as an auxiliary controller in embedded automation equipment, managing discrete signals alongside a higher-level processor. Its 28-pin SOIC package and 20 I/O lines permit a dedicated local controller for relays, interlocks, indicators, and machine-state inputs without consuming a large processor package. The 20 MHz clock offers adequate responsiveness for coordination logic, and Flash memory permits repeatable firmware updates during manufacturing or maintenance. The principal design limitation is the 3 KB program-memory capacity, so the firmware should remain focused on deterministic I/O coordination rather than networking, large data logging, or user-interface rendering.
Recomendado
Automotive and Vehicle Accessories
The PIC16F57-E/SO can be evaluated for auxiliary vehicle electronics because the manufacturer product-page snippet identifies adaptability to automotive applications, while the device provides 20 I/O lines for switches, lamps, sensors, and accessory controls. Its 20 MHz clock and 200 ns instruction execution support responsive sequential control, and its 3 KB Flash is sufficient for compact accessory logic. Automotive deployment requires more than basic I/O capability: engineers must confirm the exact temperature grade, supply limits, transient immunity, qualification status, and any application-specific requirements in the official Microchip documentation before using the E suffix as evidence of qualification.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16F57-E/SO — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16F57-I/SO | PIC16F57T-I/SO | PIC16F57T-E/SO |
|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Architecture | 8-bit PIC16 RISC | 8-bit PIC16 RISC | 8-bit PIC16 RISC | 8-bit PIC16 RISC |
| Maximum Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Flash Program Memory | 3 KB (2K × 12) | 3 KB | 3 KB | 3 KB |
| Data RAM | 72 bytes | 72 bytes | 72 bytes | 72 bytes |
| General-Purpose I/O | 20 lines | 20 lines | 20 lines | 20 lines |
| Instruction Execution Time | 200 ns | 200 ns | 200 ns | 200 ns |
| Temperature and Voltage Grade | E/SO device grade | I/SO device grade | T-I/SO device grade | T-E/SO device grade |
Principais diferenciais
- Identical core resources across the same-package grade variants (vs PIC16F57-I/SO)
- Extended-grade configuration for environments beyond the I grade (vs PIC16F57-I/SO)
- Compact embedded-control integration (vs PIC16F57T-I/SO)
Notas de projeto
Reserve the complete 28-SOIC footprint and follow the manufacturer land pattern rather than adapting a generic 28-pin drawing without checking lead pitch, body width, and exposed-pad details. Keep programming, reset, oscillator, and decoupling connections accessible for production programming. Because the supplied excerpts do not contain the complete pin table, verify every routed signal against the official PIC16F57 package drawing before fabrication.
Confirm the target device's exact operating-voltage range from the Microchip datasheet before selecting capacitors, regulator headroom, and level-shifting components. The source excerpts contain conflicting third-party voltage summaries, so neither 4.5–5.5 V nor 2.5/3.3/5 V was adopted as a verified specification. Place the required local bypass capacitors next to the supply and ground pins and maintain the manufacturer's recommended startup conditions.
Do not treat every related PIC16F57 suffix as an automatic substitute. The /SO package must remain 28-pin SOIC, while /P, /SS, and /SP options can use different package dimensions or lead layouts even when their memory sizes match. Confirm the exact suffix, operating range, oscillator configuration, peripheral set, programming method, and qualification before approving a drop-in replacement.
Use 3 KB of Flash and 72 bytes of RAM as firm firmware-sizing limits rather than assuming capacity from a larger PIC16 family member. A code-size audit should include bootloader options, interrupt vectors, configuration settings, calibration data, and repeated library routines. The 20 I/O lines also require deliberate port-state initialization so unused pins do not float during reset or while firmware is not yet executing.
Informações de conformidade
The supplied excerpts do not provide extractable RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. The manufacturer snippet says the device can be adapted for automotive applications, but that statement alone was not treated as evidence of AEC-Q100 qualification.
