P82B96DRG4 - 2-15V Dual I2C Buffer | Texas Instruments
料号： P82B96DRG4 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
P82B96DRG4 概述
An I2C bus buffer is an interface IC that regenerates or isolates a bidirectional serial bus while preserving clock and data signaling. The P82B96 belongs to the broader bus-buffer and signal-buffer hierarchy, supporting the I2C/SMBus ecosystem. Its two channels can support level translation or cable extension where the connected devices do not share identical logic voltage conditions.
The P82B96DRG4 is specified for a 400 kHz bus frequency and a 2 V to 15 V operating supply range. The verified distributor and manufacturer listings identify it as a dual bidirectional bus buffer, while the product page identifies it as a 2-bit I2C/SMBus buffer/cable extender. The SOIC-8 package is surface-mount and is identified in distributor listings as an 8-SOIC device. Exact pin names, pinout details, electrical limits, and capacitance values are not supplied in the verified snippets and are therefore not inferred here.
Its main engineering value is bus isolation and extension rather than high-speed differential signal conditioning. Bidirectional operation allows the same connection to carry data in either direction, which is required by I2C clock and data lines. The 400 kHz rating makes the device relevant to standard-speed I2C systems, while the broad supply range supports systems spanning multiple common logic domains when the associated datasheet limits are respected.
Typical uses include extending an I2C bus between a controller and remote sensors, isolating a noisy or high-capacitance bus section, connecting I2C devices operating at different logic levels, and reducing loading on a host bus. Designers should verify signal timing, pull-up resistor placement, supply sequencing, logic thresholds, and the maximum supported bus capacitance against the manufacturer datasheet before production use.
This page synthesizes verified manufacturer and distributor information, package identifiers, purchasing references, and design guidance. It does not invent missing electrical parameters, pin names, pricing values, or alternative cross-references that were not present in the supplied data.
直接替换替代料： P82B96DRG4 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： P82B96DRG4 （相同外形与封装尺寸） ——差异在于 Package, Number of Channels, RoHS Status, Function, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
P82B96DR
✅ 直接替换📋 参考替代料（不在目录中）
P82B96DP
✅ 直接替换✓ 有现货
$0.72 / 个
查看数据手册 →P82B96DG4
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →P82B96TD,118
✅ 直接替换📋 参考替代料（不在目录中）
PCA9600D,118
✅ 直接替换✓ 有现货
$1.02 / 个
查看数据手册 →PCA9600D,118
✅ 直接替换✓ 有现货
$1.02 / 个
查看数据手册 →P82B96DRG4 规格参数
| Product Type | Dual bidirectional I2C/SMBus bus buffer and cable extender |
| Number of Channels | 2 |
| Operating Power-Supply Voltage Range | 2 V to 15 V |
| Maximum I2C Bus Frequency | 400 kHz |
| Data Direction | Bidirectional |
| Supported Bus | I2C/SMBus |
| 封装 | 8-pin SOIC |
| 安装类型 | Surface mount |
| Manufacturer Product Classification | Buffer, ReDriver |
| Logic-Level Interface | Supports communication between buses operating at different logic levels |
| Cable Extension | Supported |
| RoHS 状态 | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | unknown |
P82B96DRG4 8-pin soic 引脚配置指南
P82B96DRG4（8-pin soic 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： P82B96DRG4.
请参阅 数据手册 以查看完整引脚配置。
典型应用
P82B96DRG4 适用于 6 应用s: I2C Bus Cable Extension, Different-Logic-Level I2C Interfacing, Remote Sensor and Actuator Bus, I2C Bus Isolation, Embedded Controller Bus Conditioning, Industrial Control Module Expansion.
I2C Bus Cable Extension
The P82B96DRG4 fits when a controller must reach remote I2C peripherals over a longer bus section. Its dual bidirectional channels can buffer the clock and data paths while the verified 400 kHz rating supports standard-speed operation. The device is intended to reduce the loading effect of a remote capacitive bus, although the actual allowable capacitance, pull-up values, rise time, and cable length must be verified from the datasheet. Pull-ups should remain associated with the correct bus section, and the remote device voltage levels must be compatible with the buffer’s supported logic thresholds.
推荐
Different-Logic-Level I2C Interfacing
The P82B96DRG4 is suitable for separating I2C devices that use different logic levels. Texas Instruments describes the part as capable of interfacing between buses operating at different logic levels, which helps prevent signal incompatibility between independently supplied domains. The two bidirectional channels support both clock and data paths. Before selecting the device, verify the exact input and output thresholds, supply combinations, timing margin, and pull-up arrangement in the manufacturer datasheet; the supplied search results do not provide those detailed thresholds.
推荐
Remote Sensor and Actuator Bus
The P82B96DRG4 can place a buffered boundary between a central controller and remote sensors or actuators. Bidirectional buffering helps preserve clock and data communication while isolating the main bus from a longer or more capacitive branch. Its verified 400 kHz maximum frequency is suitable for many conventional I2C sensor networks, but the design must account for pull-up resistance, total bus capacitance, cable rise time, and the electrical limits of each connected peripheral. A scope measurement at the remote bus is recommended during prototype validation.
推荐
I2C Bus Isolation
The P82B96DRG4 is appropriate for isolating a main I2C bus from a remote bus section when capacitive loading or wiring length is a concern. The buffer’s dual-channel, bidirectional architecture is suited to SCL and SDA, while its 2 V to 15 V supply range covers several common logic environments. Isolation does not eliminate the need for correct pull-up placement or common-ground design, so those network details should be reviewed against the datasheet. The verified data does not establish an isolation voltage rating, so do not interpret this as a safety-isolated interface.
推荐
Embedded Controller Bus Conditioning
The P82B96DRG4 can be used between an embedded microcontroller and an I2C peripheral group when the direct bus load is high or the wiring is less than ideal. The two buffered channels preserve bidirectional communication, and the 400 kHz rating aligns with common embedded I2C peripherals. Use the buffer as a bus-conditioning element rather than as a substitute for correct signal-integrity design. Confirm the controller’s I2C voltage, pull-up values, peripheral timing, and the maximum bus capacitance before layout release.
推荐
Industrial Control Module Expansion
The P82B96DRG4 is useful in industrial control modules that distribute I2C-controlled sensors, I/O expanders, or actuators across multiple wiring sections. Buffering can help isolate the controller from a remote branch while retaining bidirectional clock and data operation. The 2 V to 15 V operating supply range gives designers flexibility across common logic rails, but industrial temperature, EMC, and regulatory requirements are not stated in the supplied verified data. Confirm those requirements separately and validate the complete bus network in the final enclosure and cable environment.
推荐
推荐产品汇总
工程参考数据： P82B96DRG4 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | P82B96DR | P82B96D | P82B96DG4 | P82B96TD,118 | PCA9600D,118 |
|---|---|---|---|---|---|---|
| Package | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | NXP Semiconductors |
| Product Type | Dual bidirectional I2C/SMBus bus buffer and cable extender | P82B96 family buffer | P82B96 family buffer | P82B96 family buffer | P82B96 family buffer | I2C logic buffer |
| Bidirectional Operation | Yes | Yes, same family | Yes, same family | Yes, same family | Yes, same family | I2C logic buffer; verify datasheet |
| Manufacturer Price | Not provided | Not provided | Not provided | Not provided | Not provided | Not provided |
关键差异点
- Verified dual bidirectional bus-buffer function （对比 PCA9600D,118)
- Verified 400 kHz operating specification （对比 PCA9600D,118)
- Verified 2 V to 15 V operating supply range （对比 PCA9600D,118)
设计说明
Place the P82B96DRG4 close to the boundary between the main and remote I2C bus sections. Keep SCL and SDA routing symmetrical where practical, provide a continuous ground reference, and route away from high-current switching nodes. The verified data identifies an 8-pin SOIC package but does not provide a detailed land pattern, so use the official TI package drawing and pinout before releasing the PCB.
Design the pull-up network as part of the bus, not as an afterthought. I2C rise time depends on pull-up resistance, bus capacitance, cable length, and the buffer’s electrical characteristics. The supplied data confirms 400 kHz operation and cable-extension capability but does not provide the allowable capacitance or recommended resistor values. Confirm those values in the datasheet and measure clock rise time at the remote bus during validation.
Do not treat the P82B96DRG4 as a galvanic safety isolator. The verified description supports bidirectional I2C bus buffering and communication between different logic levels, but no isolation-voltage rating is provided. Also avoid assuming that every 8-pin I2C buffer is pin-compatible: the complete pin functions, supply requirements, and logic thresholds must be checked against the target schematic and the official TI datasheet.
合规信息
The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred.