PIC16F631-I/P - 20MHz 8-Bit Flash MCU | Microchip Technology
MPN: PIC16F631-I/P ✓ AktifPIC16F631-I/P Genel Bakış
An 8-bit microcontroller is a programmable control IC that integrates a CPU core, program memory, data memory, I/O, timers, and communication peripherals on one semiconductor device. PIC16 devices use the mid-range PIC architecture with a compact instruction set and flash-based programming, placing them between simple fixed-function controllers and larger general-purpose microcontrollers. The PIC16F631 is specifically suited to industrial, consumer, appliance, sensor, and small motor-control designs.
Key features include 20 MHz operation, 1.75 KB of flash program memory, 64 bytes of RAM, on-chip EEPROM data memory, 11 I/O ports, and an operating supply range stated as 4.5 V to 5.5 V in the retrieved product data. The -I grade indicates the industrial-temperature ordering variant, while /P identifies the PDIP package. The 20-pin through-hole format supports prototyping, repairability, and conventional PCB assembly.
The PIC16F631-I/P combines a simple 35-instruction architecture with 200 ns instruction execution, as stated in the retrieved FindIC description. Its integrated peripherals reduce external component count, while flash memory permits firmware updates without replacing the device. Engineers should verify exact peripheral, electrical, timer, and programming details against the Microchip manufacturer datasheet before final schematic and firmware release.
Typical uses include digital control panels, sensor interfaces, small motor controllers, LED sequencing, battery-powered devices, industrial automation modules, and compact consumer appliances. Its 20 MHz performance and modest memory footprint make it suitable for real-time state machines and modest protocol handling, but not complex graphics, high-bandwidth connectivity, or large data logging.
For PCB design, preserve the manufacturer’s recommended decoupling and programming interface, and do not assume that a same-package related PIC is automatically firmware- or peripheral-compatible. This page combines distributor references, the Microchip datasheet link, and explicitly marked data gaps to support engineering selection.
Drop-in alternatifler için PIC16F631-I/P — aynı paket, pin-başına uyumlu. PCB yeniden montajı gerektiren farklı paket bileşenleri dışlanmıştır.
Bu Serideki Variantlar
Yedek parça uyumlu olan aynı serideki modeller PIC16F631-I/P (aynı form faktörü ve ayağa oturma) — farklı olan Package, Architecture, Program Memory, Timers, Data RAM.
PIC16F631-E/P
✅ Yerleştirme ⚠️ Onaylanmamış ÖzelliklerFiyat için iletişime geçin
Veri Şablonunu Görüntüle →PIC16F677-I/P
✅ YerleştirmeFiyat için iletişime geçin
Veri Şablonunu Görüntüle →PIC16F689-I/P
✅ YerleştirmeFiyat için iletişime geçin
Veri Şablonunu Görüntüle →PIC16F690-I/P
✅ YerleştirmeFiyat için iletişime geçin
Veri Şablonunu Görüntüle →PIC16F631-I/SO
✅ YerleştirmeFiyat için iletişime geçin
Veri Şablonunu Görüntüle →PIC16F631-I/P Maksimum Değerlendirmeler & Elektriksel Özellikler
| Product Type | 8-bit CMOS flash-based microcontroller |
| Maximum Clock Speed | 20 MHz |
| Program Memory | 1.75 KB |
| Program Memory Organization | 1K x 14 words |
| RAM | 64 bytes |
| Data Memory | On-chip EEPROM |
| I/O Ports | 11 |
| Besleme Gerilimi | 4.5 V to 5.5 V |
| Instruction Execution | 200 ns |
| Instruction Set | 35 single-word instructions |
| Architecture | PIC RISC |
| Paket | 20-pin PDIP |
| Montaj Türü | Through-hole |
| Temperature Grade | Industrial temperature |
| Process Technology | CMOS |
| Bellek Türü | Flash |
| Lifecycle Stage | Active |
PIC16F631-I/P 20-pin pdip Pin Yapısı Kılavuzu
PIC16F631-I/P (20-pin pdip paket) için pin yapısı. Bu dijital IC, GPIO, iletişim arayüzleri (UART, SPI, I2C) ve güç pinleri içerir. Alternatif pin işlevleri ve yapılandırma seçenekleri için üretici veri kitapçığını referans alın. Tünel sistem tasarımı ve PCB yerleşimi için temel bir bileşendir.
Ayrıntılı pin çıkış verisi mevcut değil: PIC16F631-I/P.
Aşağıdaki veri sayfası tam pin konfigürasyonu için.
Tipik Uygulamalar
PIC16F631-I/P için uygundur 6 uygulamas: Compact Industrial Sensor Interface, LED Sequencing and Display Control, Small Motor and Relay Control, Battery-Powered Measurement Node, Appliance and Embedded Control Panel, Remote Communication Controller.
Compact Industrial Sensor Interface
PIC16F631-I/P fits compact sensor-interface modules because its 20 MHz execution rate provides deterministic control timing, while 11 I/O ports can connect digital sensors, switches, alarm inputs, and status indicators. The 1.75 KB flash program memory is sufficient for small acquisition loops, debounce logic, threshold checks, calibration constants, and communication routines. Its 20-pin PDIP package is particularly useful during industrial prototyping because through-hole assembly is easy to inspect and replace. The design should add proper input protection and verify the exact ADC, comparator, watchdog, and communication peripheral requirements in the Microchip datasheet.
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LED Sequencing and Display Control
PIC16F631-I/P can drive LED sequencing, status panels, and low-power indicator systems using its 11 available I/O ports and 20 MHz clock. Firmware can implement timers, debounce handling, animation patterns, button input, and nonvolatile settings in the 1.75 KB flash memory. The 64 bytes of RAM and on-chip EEPROM make it practical for compact controls that store brightness, mode, or calibration values. External current-limiting resistors, transistor drivers, or constant-current LED drivers remain necessary when indicator current exceeds the MCU’s specified GPIO limits, and timing accuracy should be checked against the exact oscillator configuration.
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Small Motor and Relay Control
PIC16F631-I/P is appropriate for small DC motor, relay, solenoid, or actuator-control boards when the application fits 11 I/O ports and a compact firmware footprint. The MCU can sequence motor states, enforce time limits, monitor limit switches, and provide safety interlocks, while the 20 MHz clock supports responsive control loops. Power transistors or logic-level MOSFETs should provide the actual load drive, and flyback protection is required for inductive outputs. The exact timer, PWM, brown-out, and output-drive specifications must be verified before using it in a new motor-control design.
Önerilen
Battery-Powered Measurement Node
PIC16F631-I/P can serve as the control core for a low-power measurement node when the design uses its EEPROM for calibration data and its flash firmware for configuration logic. The small memory footprint supports periodic sampling, threshold evaluation, data averaging, sleep/wake control, and status reporting without requiring a large processor. A measurement node should account for MCU current, oscillator start-up behavior, sensor standby current, and battery leakage; those values were not supplied here. Confirm the exact low-power modes, wake-up sources, and brown-out behavior in the Microchip datasheet.
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Appliance and Embedded Control Panel
PIC16F631-I/P is well matched to compact appliance controls, keypad scanners, timers, and simple user-interface controllers. Its 11 I/O ports can support keys, indicators, relays, and interlocks, while EEPROM can retain settings such as operating mode or calibration offsets. The 20-pin PDIP package makes the device accessible for cost-sensitive prototypes and field-serviceable assemblies. Designers should define startup behavior, watchdog requirements, brown-out response, and maximum GPIO loading before layout, because those details determine whether the MCU remains reliable across power transients and user-accessible interfaces.
Önerilen
Remote Communication Controller
PIC16F631-I/P can act as a small protocol and control controller in a sensor node or remote actuator interface when the firmware and data rate fit its 20 MHz CPU and 1.75 KB flash memory. UART-style communication, status reporting, command parsing, and local I/O control are practical uses for this device, with an external transceiver selected for the physical layer. Communication timing, baud-rate support, peripheral availability, and buffer requirements were not fully specified in the retrieved data, so engineers should confirm them in the datasheet and account for protocol latency in the control design.
Önerilen
Önerilen Ürünler Özeti
Mühendislik referans verileri: PIC16F631-I/P — karşılaştırma, tasarım rehberi ve uyumluluk bilgileri.
Seçim Kılavuzu
Alternatiflerle Karşılaştırma
| Parametre | Bu Ürün | PIC16F631-E/P | PIC16F677-I/P | PIC16F689-I/P | PIC16F690-I/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin PDIP | 20-pin PDIP | 20-pin PDIP | 20-pin PDIP | 20-pin PDIP |
Ana Farklılayıcılar
- Exact target resource profile (karşılaştırma:PIC16F677-I/P)
- Small-programming-system suitability (karşılaştırma:PIC16F631-E/P)
- Integrated nonvolatile data storage (karşılaştırma:PIC16F689-I/P)
Tasarım Notları
Place the MCU’s supply decoupling exactly where the manufacturer datasheet recommends, using short, low-loop-inductance connections from each power pin to the ground reference. The retrieved data specifies a 4.5 V to 5.5 V operating range for the exact -I/P ordering code; do not substitute the family’s broader voltage statement without checking peripheral and brown-out limits. Add local bulk capacitance near the supply source and separate noisy actuator return currents from the MCU ground path.
Design the 20-pin PDIP footprint from the official package drawing rather than from a generic DIP footprint. Confirm pin pitch, row spacing, drill dimensions, solderable lead length, and pin-1 orientation. Keep programming-test pads accessible, route sensitive reset and oscillator traces away from switching nodes, and place interface protection close to external connectors so surge current does not travel through the MCU ground path.
Do not assume that a related PIC16F631 or PIC16F6xx device is pin-compatible merely because it is available in a 20-pin PDIP package. Verify the exact pin names, multiplexed functions, interrupt sources, configuration bits, programming interface, and electrical limits for each candidate. Also confirm that 1.75 KB of flash and 64 bytes of RAM are sufficient after reserving bootloader, configuration, stack, library, and interrupt overhead.
Uyumluluk Bilgisi
The supplied distributor snippets mention lead-free packaging for the product family, but no explicit RoHS, REACH, AEC-Q100, halogen-free, or conflict-minerals declaration was verified for PIC16F631-I/P. Compliance fields are therefore left unknown rather than inferred.
