MC145027P - 5-Address CMOS Remote-Control Decoder | NXP
Артикул: MC145027P ✓ АктивенMC145027P Обзор
An encoder-and-decoder pair belongs to the remote-control IC category, where the encoder converts multiple logic states into a serial bit stream and the decoder reconstructs the data at the receiver. In the MC145026/27/28 family, the transmitter accepts multiple input lines and encodes them when its transmit-enable signal is active. The decoder then performs address comparison and data recovery, allowing a remote system to reject commands intended for other receivers.
The MC145027P is identified as an encoder and decoder-pair CMOS device in the manufacturer datasheet family. Its listed electrical operating range of 4.5 V to 18 V makes it suitable for legacy remote-control equipment designed around broad CMOS supply rails. The 16-DIP package supports through-hole assembly and is also available in related suffix variants for different production or package requirements.
Remote-control systems benefit from the decoder architecture because address selection prevents unintended actuation when several receivers share the same transmission medium. The MC145027P provides five address inputs, 243 supported address codes, a valid-output indication, and a 16-pin interface. Its principal application is a fixed-address receiver used in garage-door operators, access controls, industrial remote systems, consumer equipment, and security devices.
When laying out a receiver, treat every supply and signal trace as a potentially noisy digital line even though the device is CMOS. Keep the decoder and its companion encoder electrically compatible, configure the address pins according to the manufacturer’s truth table, and verify that the logic family driving the serial input cannot exceed the decoder’s supply rail.
This page combines device identification, supply and package specifications, functional family context, application guidance, and engineering notes for the MC145027P. The comparison and selection material focuses on the distinctions that matter when repairing or redesigning a legacy remote-control receiver without assuming that similarly named decoder ICs are automatically interchangeable.
Аналоги без доработки для MC145027P — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
MC145027PG
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
MC145027P2
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
MC145027P Характеристики
| Device Type | Encoder and decoder pair CMOS device |
| Primary Function | Remote-control decoder |
| Application | Remote control |
| Analog Supply Voltage Range | 4.5 V to 18 V |
| Address Input Count | 5 inputs |
| Address Code Count | 243 codes |
| Radio-Frequency Classification | RF decoder |
| Radio-Frequency Mode | Simplex |
| Тип монтажа | Through hole |
| Корпус | 16-DIP (0.300 in, 7.62 mm pitch) |
| Число выводов | 16 pins |
| Process Technology | CMOS |
Руководство по цоколевке MC145027P в корпусе 16-dip (0.300 in, 7.62 mm pitch)
Цоколевка для MC145027P (корпус 16-dip (0.300 in, 7.62 mm pitch)). Нумерация выводов, функции и схемы подключения определены в техническом описании производителя. Обратитесь к нему для точного посадочного места и рекомендаций по пайке.
Нет подробных данных о распиновке для MC145027P.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
MC145027P подходит для 6 применениеs: Garage-Door Remote Receiver, Wired Access-Control Receiver, Industrial Remote-Control Terminal, Security and Alarm Control Panel, Consumer Remote-Control Receiver, Remote Actuation and Equipment Control.
Garage-Door Remote Receiver
The MC145027P fits a legacy garage-door receiver because its five address inputs can distinguish commands intended for separate door operators, while its 243-code capability supports multiple assignments within the family protocol. The decoder can sit behind an optically isolated receiver and act only when the incoming serial sequence matches the configured address. Its 4.5 V to 18 V supply range is useful in systems using a legacy regulated rail, and the 16-DIP package simplifies repair of through-hole receiver boards. During replacement, verify the address-input truth table, valid-output behavior, reset timing, and transmitter waveform against the manufacturer data sheet before energizing the receiver.
Рекомендуется
Wired Access-Control Receiver
The MC145027P can decode fixed-address commands in a legacy wired access-control installation. Five address inputs allow a receiver to ignore traffic addressed to another unit, and the 243-code range provides multiple valid command assignments when supported by the associated encoder. A practical implementation places the decoder after receiver isolation and line conditioning, then uses its valid indication to qualify the downstream door or barrier actuator. Because address decoding is not equivalent to cryptographic authentication, the system should retain any separate credential-validation stage. The 16-DIP format supports repair of existing through-hole designs, but the supply rail and serial timing must remain within the manufacturer limits.
Рекомендуется
Industrial Remote-Control Terminal
The MC145027P is appropriate for a legacy industrial remote terminal that uses addressable, low-cost command codes rather than a modern fieldbus. Its five address inputs let multiple receivers share a hardwired command line without all responding to the same address, and the 243-code set permits distinct functions such as enable, select, or reset. The 4.5 V to 18 V supply span accommodates established industrial control boards. For reliable deployment, add line protection and isolation outside the IC, verify the valid-output polarity, and use the data-sheet timing limits to avoid interpreting reflections or noise as valid commands.
Рекомендуется
Security and Alarm Control Panel
The MC145027P can serve as a legacy alarm-panel command decoder when the panel already uses an MC145026/27/28-style transmission scheme. The address inputs provide basic receiver discrimination, and the valid-data indication can gate an acknowledgement path after a complete code has been checked. Its 16-DIP package is practical for maintaining older through-hole control boards, and its 4.5 V to 18 V operating range supports established supply designs. Security is stronger only when address selection is combined with appropriate physical protection and a separate authentication mechanism. Before upgrading a panel, confirm the encoder waveform, bit timing, reset behavior, and output-drive requirements in the manufacturer documentation.
Рекомендуется
Consumer Remote-Control Receiver
The MC145027P suits a legacy consumer appliance or audio receiver with a wired, addressable remote-control interface. Five address lines allow separate decoders to be assigned to different functions or rooms, while 243 supported codes provide enough combinations for common command sets. The through-hole 16-DIP package makes the part convenient for service replacement rather than new ultra-miniaturized designs. The decoder should be placed where the serial input has adequate noise margin, and its valid indication should be debounced according to the system timing requirements. Supply, address, and signal pins must follow the exact 16-pin assignment rather than relying on the physical position alone.
Рекомендуется
Remote Actuation and Equipment Control
The MC145027P can implement an addressable command receiver for pumps, lights, test equipment, or small actuators controlled over a wired remote link. The decoder separates valid remote traffic from unrelated activity by comparing the received address and code before presenting a valid-data result. Its 4.5 V to 18 V supply range and 16-DIP footprint suit established control boards, but they do not replace output-driver isolation or actuator protection. A robust implementation should use the decoder indication to qualify a safe actuator path, maintain defined reset timing after power-up, and isolate long external wiring from the CMOS input. Validate timing and logic levels with the associated MC145026 encoder.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для MC145027P — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | MC145027PG | MC145027P2 |
|---|---|---|---|
| Brand | NXP | NXP | NXP |
| Package | 16-DIP | 16-DIP | 16-DIP |
| Device Type | Remote-control decoder | Remote-control decoder | Remote-control decoder |
| Supply Voltage Range | 4.5 V to 18 V | 4.5 V to 18 V | 4.5 V to 18 V |
| Address Inputs | 5 inputs | 5 inputs | 5 inputs |
| Address Codes | 243 codes | 243 codes | 243 codes |
| Process Technology | CMOS | CMOS | CMOS |
| Mounting Type | Through hole | Through hole | Through hole |
Ключевые отличия
- Defined address-selection capability (против MC145028)
- Broad legacy CMOS supply range (против MC145027PG)
- Drop-in footprint for family-oriented repairs (против MC145027P2)
Заметки по проектированию
Do not substitute a decoder solely because its package has 16 pins. Confirm that the replacement has the same pin numbers for supply, ground, address inputs, serial input, valid indication, and any reset-related signal. The HT12D is not a footprint-compatible substitute for an MC145027P because its pin assignment differs. For a repair, also compare the associated encoder’s waveform, bit timing, address truth table, and supply levels with the manufacturer data sheet before installing a related suffix.
Route the serial data and address lines away from switching supplies, relay drivers, mains wiring, and long parallel antenna or speaker routes. A wired remote receiver should use an appropriately conditioned input stage so transitions reaching the CMOS decoder remain within the documented limits. Keep the input trace short, provide a stable ground reference, and place any required bypass capacitor close to the device pins. Validate the received waveform at the pin rather than relying only on measurements at the connector.
The MC145027P uses a 16-DIP through-hole footprint with 7.62 mm pin pitch. When modifying an existing board, inspect the socket and copper pads for bent pins, contamination, annular-ring damage, and solder bridges. Maintain clearance between the decoder and heat-producing or inductive components. If replacing a socketed device, confirm that the socket orientation matches the manufacturer pin-1 convention and that no adjacent signal is driven above the device supply voltage during startup.
The documented 4.5 V to 18 V operating range is not a recommendation to operate at 18 V without checking every absolute maximum rating and system margin. Provide a supply that starts up and remains stable within the valid range, including during reset. Decouple the supply locally, keep return-current paths short, and account for voltage transients from connected relays or solenoids. The data-sheet power and ground pins must follow the exact MC145027P pin description rather than a generic 16-DIP numbering assumption.
Address pins are part of the decoder identity and must be configured only from the family data-sheet truth table. An open or incorrectly strapped address input can cause the receiver to ignore valid commands or respond to an unintended address. Before energizing a repaired unit, inspect every address input for soldering debris, verify continuity to the intended straps, and power the receiver with the transmitter disconnected. Then confirm that the valid-data indication remains inactive until the complete compatible code is received.
Информация о соответствии
The available product records do not state the exact suffix-specific environmental or material-compliance declarations. Confirm RoHS, REACH, lead-free, halogen-free, and conflict-minerals status with the manufacturer for the ordered MPN.
