P82B96DG4 - 2-15V 400kHz I2C Bus Buffer | Texas Instruments
Артикул: P82B96DG4 ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
P82B96DG4 Обзор
What is an I2C bus buffer? An I2C buffer is an interface IC that helps extend, isolate, or level-translate a two-wire serial bus. The P82B96 belongs to the broader bus-buffer and interface-IC hierarchy and is used when cable length, bus capacitance, or different logic domains make a direct connection unreliable. Its 400 kHz operating point targets standard-speed I2C systems rather than higher-speed I2C designs.
Key features include a 2 V to 15 V operating power-supply range, bidirectional transfer on two bus bits, and compatibility with I2C and SMBus signaling. The manufacturer product page specifically describes the P82B96 as a 2-bit, bidirectional, 2 V to 15 V, 400 kHz I2C/SMBus buffer/cable extender. The 8-SOIC package is a conventional surface-mount package that supports standard PCB assembly and rework processes. Heisener lists 5,568 pieces in stock, but its lead time and price require a quotation.
The device is useful when a controller and peripheral bus must be separated by cable distance, connectors, or different voltage domains. It is also appropriate for industrial modules, test equipment, and embedded systems where bus loading and level compatibility are important. The manufacturer documentation also references additional low-period timing of 1,060 ns and a 425 ns I2C bus rise-time allowance, which are relevant when validating system timing.
For a robust design, confirm the actual bus voltage levels, capacitance, pull-up resistors, and required rise time against the manufacturer datasheet. Do not treat the quoted stock count as a guaranteed XAIPART inventory position, and obtain a current quote before purchasing. This page combines manufacturer information, distributor listings, and verified comparison data while distinguishing unavailable pricing and lifecycle details.
Аналоги без доработки для P82B96DG4 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с P82B96DG4 (тот же форм-фактор и посадочное место) — отличается по Package, Product Type, RoHS Status, Supported Bus.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
P82B96DP
✅ Прямая замена✓ В наличии
$0.72 / шт.
Открыть даташит →P82B96DRG4
✅ Прямая замена✓ В наличии
Уточнить цену
Открыть даташит →P82B96DG4 Характеристики
| Product Type | 2-bit bidirectional I2C/SMBus buffer and cable extender |
| Operating Power-Supply Voltage Range | 2 V to 15 V |
| Bus Operating Frequency | 400 kHz |
| Number of Buffered Bits | 2 bits |
| Data Direction | Bidirectional |
| Supported Bus | I2C and SMBus |
| Корпус | 8-SOIC |
| Тип монтажа | Surface mount |
| Distributor Channel Description | Dual bidirectional bus buffer |
| Heisener Listed Stock | 5,568 pieces |
| DigiKey Category Description | Signal Buffers, Repeaters, Splitters |
| DigiKey Product Description | Buffer, Redriver 2 Channel 400 kHz 8-SOIC |
| Additional Low Period | 1,060 ns |
| I2C Bus Rise-Time Allowance | 425 ns for a worst-case 0% to 70% bus rise time |
Руководство по цоколевке P82B96DG4 в корпусе 8-soic
Цоколевка для P82B96DG4 (корпус 8-soic). 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 P82B96DG4.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
P82B96DG4 подходит для 6 применениеs: I2C Cable Extension, Industrial I2C Bus Partitioning, Embedded Sensor Hub, Board-to-Board Interface, Test and Measurement Equipment, Portable and Wearable Electronics.
I2C Cable Extension
The P82B96DG4 fits cable-extension use because it is a dedicated 2-bit bidirectional I2C/SMBus buffer with a stated 400-kHz operating point. Placing it between a host bus and a remote bus can reduce the electrical loading seen by the host and provide a defined interface boundary across connectors or longer wiring. The design must still verify cable capacitance, pull-up values, rise time, and the voltage levels on both sides. The device is intended for standard-speed I2C communication, not as a substitute for a high-speed differential transceiver.
Рекомендуется
Industrial I2C Bus Partitioning
Use P82B96DG4 when an industrial module contains a controller bus and a separate peripheral bus that should not be electrically tied together. Its 2 V to 15 V operating range supports multiple supply environments, while bidirectional operation allows each side to drive and receive according to the I2C protocol. The buffer can simplify cable routing and reduce loading, but it does not automatically translate arbitrary logic levels. Confirm pull-up locations, bus capacitance, fault behavior, and timing against the connected equipment and TI datasheet.
Рекомендуется
Embedded Sensor Hub
The P82B96DG4 can organize I2C sensor traffic when a microcontroller or processor board connects to remote sensors through a board-to-board cable. Its two buffered channels preserve SDA and SCL bidirectionality, and the 400-kHz rating aligns with many conventional embedded sensor buses. Keep pull-up resistors on the correct bus sections and verify that the cable does not create excessive capacitance or ringing. The part is most appropriate when standard-speed operation and bus partitioning are more important than very high clock rates.
Рекомендуется
Board-to-Board Interface
P82B96DG4 is useful on a board-to-board interconnect where two SDA/SCL domains need a defined bidirectional buffer between connectors. The 8-SOIC package is straightforward to route in a conventional surface-mount design, and the 2 V to 15 V range provides broad supply compatibility. Designers should still inspect the exact pin assignment from the manufacturer datasheet, maintain the required power and ground layout, and account for connector and cable capacitance. The device is a bus buffer, not a general-purpose logic-level translator.
Рекомендуется
Test and Measurement Equipment
The P82B96DG4 can be used in test fixtures and measurement systems that distribute a 400-kHz I2C control bus to remote instrument modules. Bidirectional buffering helps isolate fixture loading and lets a controller communicate through a cable without tying every node to one large capacitive network. Validate rise time with the actual pull-up resistance and cable length, and provide local decoupling and grounding. Because the supplied data does not include complete timing limits or pin assignments, final implementation must rely on the TI datasheet rather than distributor summaries.
Рекомендуется
Portable and Wearable Electronics
The device may fit portable equipment that separates a low-power host bus from a peripheral or charging-related I2C domain. Its small 8-SOIC footprint and 2 V minimum operating supply are useful for compact boards, while bidirectional SDA/SCL operation preserves standard bus behavior. Battery-powered designs must check quiescent current, which is not provided in the verified data, and should account for bus-level pull-ups. Confirm that the target system does not require I2C speeds above the verified 400-kHz target.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для P82B96DG4 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | P82B96D | P82B96DRG4 |
|---|---|---|---|
| Product Function | 2-bit bidirectional I2C/SMBus buffer and cable extender | 2-bit bidirectional bus buffer | 2-bit bidirectional bus buffer |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 8-SOIC | 8-SOIC according to supplied comparison context | 8-SOIC according to supplied comparison context |
| Data Direction | Bidirectional | Bidirectional according to comparison context | Bidirectional according to comparison context |
Ключевые отличия
- Dedicated I2C/SMBus cable-extension function (против P82B96D)
- Bidirectional two-channel bus buffering (против P82B96DRG4)
- Standard surface-mount 8-SOIC implementation (против P82B96D)
Заметки по проектированию
Treat the P82B96 as a 400-kHz-class I2C/SMBus interface, not as a universal level translator. Validate SDA and SCL rise times at the far end of the cable with the final pull-up resistors, connector, and cable capacitance. The verified manufacturer material notes a 425 ns allowance for a worst-case 0% to 70% I2C bus rise time; use that guidance together with the complete datasheet timing specification when selecting resistor values.
Place the buffer close to the interface boundary and route SDA and SCL as a compact, matched pair. Keep ground return paths continuous and place local supply bypassing near the device pins. Because the supplied data confirms an 8-SOIC package but does not provide the complete pin map, verify the TI pin numbering before routing power, ground, SDA, and SCL. Avoid long unprotected traces between the buffer and connector.
Do not assume that a 2 V to 15 V supply range guarantees arbitrary voltage-level translation. Check the high and low levels generated by each bus, ensure pull-ups reference the correct rail, and confirm that the remote bus capacitance remains within the device and connected-device requirements. Also verify the exact P82B96 ordering suffix, since the supplied cross-reference evidence uses several related P82B96 designations.
Decoupling, supply-current limits, and power sequencing are not fully specified in the retrieved distributor data. Before layout release, obtain the manufacturer datasheet values for supply current, recommended capacitors, absolute maximum ratings, and startup behavior. Keep the supply and ground planes low-impedance and verify the rail during cable insertion or fault conditions so that the bus buffer does not create unsafe logic states.
Информация о соответствии
The supplied verified snippets do not provide conclusive compliance declarations for P82B96DG4. Check current TI material-compliance documentation for the exact ordering code.
