PIC16F677-I/P - 8-Bit 20MHz Flash MCU | Microchip Technology
MPN: PIC16F677-I/P ✓ Hoạt độngPIC16F677-I/P Tóm tắt
What is an 8-bit Flash microcontroller? An 8-bit Flash microcontroller is a compact embedded-processing semiconductor that executes instructions from nonvolatile Flash program memory. PIC16 devices use the mid-range x14 architecture and provide a simple register-based programming model for control, sensing, communications, and embedded automation. In the system hierarchy, the PIC16F677-I/P is a microcontroller, a programmable controller, and a semiconductor used inside larger embedded products.
The verified distributor data identifies 20 MHz operation, 3.5 KB Flash, 128 bytes of data RAM, 11 I/O ports, and a 20-pin PDIP package. The manufacturer product page also identifies on-board EEPROM Data Memory and the 2.0 V to 5.5 V operating range. These features make the device suitable for designs that need modest program storage, low-voltage operation, and a conventional through-hole microcontroller package.
Its architecture is based on the PIC16 mid-range x14 family rather than a high-performance application processor. This favors straightforward control-loop firmware and low component count. The 20 MHz clock provides useful timing headroom for digital I/O, timers, and communication tasks, while the 3.5 KB Flash capacity limits the complexity of embedded applications. Exact peripheral details, memory organization, and electrical limits should be confirmed against the Microchip PIC16F677 datasheet before production release.
Typical applications include industrial control panels, sensor-conditioning systems, small motor or actuator controllers, instrumentation interfaces, and low-power embedded control products. The PDIP package is particularly useful for prototypes, educational platforms, through-hole assembly, and designs where a socketed controller is convenient. Because the verified data does not provide a complete peripheral or pin-level specification set, designers should not infer unavailable features.
For a new design, first confirm the exact pinout, oscillator configuration, I/O direction, reset requirements, and programming interface from the manufacturer datasheet. Keep the controller supply decoupling close to the device, use a stable clock source, and leave programming and test access available on assembled boards. Verify operating current, temperature limits, and all timing assumptions against the authoritative device documentation.
Bộ thay thế dễ dàng lắp đặt cho PIC16F677-I/P — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16F677-I/P (cùng hình factor và footprint) — khác nhau ở Package, Comparators, Timers, ADC, I/O Pins.
Không có bộ thay thế dễ dàng lắp đặt sẵn có cho sản phẩm này.
Yêu cầu các bộ thay thếPIC16F677-I/P Tỷ lệ tối đa & tính chất điện
| Product Type | 8-bit Flash microcontroller |
| Architecture | PIC16 mid-range x14 architecture |
| Tần số xung maksimum | 20 MHz |
| Program Memory | 3.5 KB Flash (2K x 14) |
| Data RAM | 128 bytes |
| EEPROM Data Memory | On-chip EEPROM Data Memory |
| Operating Voltage Range | 2.0 V to 5.5 V |
| Low-Power Operation | Operation at 2 V and 8 MHz |
| I/O Ports | 11 |
| Hộp | 20-PDIP |
| Lead-Free Package | Lead-free plastic package |
| Kiểu lắp đặt | Through-hole |
| Instruction Execution | 200 ns |
| Instruction Set | 35 single-word instructions |
| Technology | CMOS Flash technology with nanoWatt technology |
Hướng dẫn cấu hình chân PIC16F677-I/P lead-free plastic package
Cấu hình chân cho PIC16F677-I/P (lead-free plastic package gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho PIC16F677-I/P.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
PIC16F677-I/P phù hợp cho 6 Áp dụngs: Compact Industrial Control Panel, Sensor Conditioning and Digital Acquisition, Low-Voltage Embedded Instrument, Small Actuator and Relay Sequencer, Educational PIC16 Development Platform, Battery-Powered Sensor Node.
Compact Industrial Control Panel
The PIC16F677-I/P fits compact control-panel tasks that require an 8-bit controller, up to 20 MHz operation, 128 bytes of RAM, and 3.5 KB of Flash program memory. Its 2.0 V to 5.5 V operating range can simplify low-voltage logic distribution, while the on-chip EEPROM Data Memory supports parameters or calibration data that must survive power removal. The controller can read discrete inputs, scan indicators, and sequence relays through its 11 I/O ports. The 20-PDIP package is useful when the panel uses a through-hole PCB or socketed assembly. Firmware sizing should remain within the verified memory capacity, and the final design must confirm oscillator, reset, electrical, and environmental details from the Microchip datasheet.
Được đề xuất
Sensor Conditioning and Digital Acquisition
PIC16F677-I/P is appropriate for small sensor-conditioning systems where a microcontroller must supervise analog or discrete sensor inputs, apply calibration values, and publish results through digital interfaces. The verified 3.5 KB Flash limit makes compact, organized firmware important, while 128 bytes of RAM is suitable for modest buffering and state management. EEPROM Data Memory can retain calibration constants or configuration records between power cycles. The 20 MHz clock gives designers more timing margin for input sampling, filtering, and protocol handling than slower control-only solutions. The exact ADC, comparator, timer, and communication resources must be verified in the device datasheet before selecting the MCU for a specific sensor node.
Được đề xuất
Low-Voltage Embedded Instrument
The PIC16F677-I/P suits low-voltage embedded instruments that need local control, nonvolatile configuration, and a small through-hole footprint. Its operating range begins at 2.0 V, and the verified information confirms operation at 2 V and 8 MHz for low-power use cases. A designer can use the MCU to manage front-panel inputs, set operating modes, monitor a system fault, and retain configuration data in EEPROM. The device should be paired with regulator and clock components whose specifications are compatible with the selected voltage and frequency. Because the supplied data does not identify all analog peripherals or absolute maximum ratings, sensor accuracy, regulator noise, and timing margins must be checked in the manufacturer documentation.
Được đề xuất
Small Actuator and Relay Sequencer
The PIC16F677-I/P can serve as the sequencing controller in a compact actuator or relay system because it provides 11 I/O ports, 8-bit processing, and up to 20 MHz operation. Firmware can implement state machines, debounce logic, interlocks, timing delays, and fault reporting without relying on a larger processor. The 20-PDIP package simplifies through-hole assembly and makes the controller convenient for prototype boards or socketed maintenance designs. Relay drivers, flyback protection, isolation, and power supplies should be placed outside the MCU and selected for the actual load. Before production use, verify timer, I/O, reset, and electrical limits directly from the Microchip PIC16F677 datasheet.
Được đề xuất
Educational PIC16 Development Platform
PIC16F677-I/P is well suited to education and prototype development because it combines a recognizable 8-bit PIC16 architecture with Flash program memory, 128 bytes of RAM, and a 20-PDIP package. Students can learn GPIO operation, timing, interrupts, serial communication, EEPROM retention, and low-voltage operation without adopting a complex high-performance MCU. The through-hole package permits socket mounting and easy replacement on development boards. The verified 3.5 KB Flash capacity encourages disciplined firmware organization and makes memory usage visible during instruction. Ensure that the development board's oscillator, programming connector, supply rails, and I/O expansion follow the official package and application requirements before applying power.
Được đề xuất
Battery-Powered Sensor Node
PIC16F677-I/P can be evaluated for a small battery-powered sensor node because its verified low-voltage operation reaches 2.0 V and the family is associated with nanoWatt technology. The MCU can manage periodic sensor readings, local threshold decisions, and EEPROM-backed configuration while remaining within the 20 MHz maximum clock limit. Its 128 bytes of RAM is modest, so applications should use short buffers and a lean state machine. Power availability, sleep currents, wake-up timing, and regulator efficiency are not fully provided in the verified snippets and must be checked in the datasheet. Use a regulator and battery protection network that preserve the controller's required voltage during load transients.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F677-I/P — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16F677-I/P |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Package | 20-PDIP | 20-PDIP |
| Architecture | PIC16 mid-range x14 | PIC16 mid-range x14 |
| Maximum Clock | 20 MHz | 20 MHz |
| Flash Memory | 3.5 KB | 3.5 KB |
| Data RAM | 128 bytes | 128 bytes |
| Operating Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| EEPROM Data Memory | On-chip | On-chip EEPROM Data Memory |
| I/O Ports | 11 | 11 |
| Unit Price | $2.8354 starting price as of 2026-10-23 | $2.8354 starting price as of 2026-10-23 |
Bảo phân biệt quan trọng
- Verified 20 MHz PIC16 control with compact Flash memory (vsPIC16F631-I/P)
- On-chip EEPROM Data Memory (vsPIC16F677-I/SO)
- Through-hole 20-PDIP package (vsPIC16F677-I/SO)
- Low-voltage operation range (vsPIC16F684)
Ghi chú thiết kế
Design the supply around the verified 2.0 V to 5.5 V operating range rather than assuming a fixed 5 V rail. Place the regulator and decoupling network close to the PIC16F677-I/P, maintain a stable return path, and verify the controller's required voltage at the pins under oscillator startup and I/O load. The verified data does not provide absolute maximum, input-current, or detailed power-consumption values, so those limits must be taken from the Microchip datasheet before finalizing the power tree.
Use a PCB footprint that matches the 20-PDIP package and confirm pin 1 orientation against the official package drawing. Keep the oscillator components, programming interface, reset network, and decoupling capacitor placement consistent with the manufacturer reference layout. Because the supplied data confirms a 20-PDIP package but not individual pin names, do not assign signals to pins solely from distributor metadata; verify every connection against the PIC16F677 datasheet.
Do not treat PIC16F677-I/P as interchangeable with PIC16F684, PIC16F628A, or a SOIC package solely because they are PIC16 devices. The supplied results do not prove identical memory, peripheral mapping, electrical limits, pinout, or package geometry. Before substituting any part, check the Microchip pin-and-code compatibility chart, programming model, oscillator requirements, and board-level pin assignments. The 3.5 KB Flash limit should also be checked early because firmware changes may not fit after peripheral libraries are added.
Keep sensitive clock and programming traces short, provide a clean ground reference around the controller, and separate relay or actuator drive paths from low-level control signals. If the board includes sensors or analog measurements, use controlled grounding and short analog routes, but confirm the actual peripheral pin assignment from the datasheet. A prototyping footprint can preserve a socket and programming header, making firmware iteration and replacement easier in the 20-PDIP format.
Thông tin tuân thủ
The verified distributor snippet identifies PIC16F677-I/P as a lead-free plastic package, but the supplied data does not explicitly establish RoHS, REACH, halogen-free, conflict-minerals, or AEC-Q100 status.
