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PCA9548ADGVR
Switch ICs - Various 8-Channel I2C Switch
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製造商零件號 # : PCA9548ADGVR
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包裝/封裝: TVSOP-24
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零件狀態 : NRND
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製造商: Texas Instruments
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產品分類 : Specialized
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PCA9548ADGVR 數據表
價格 (USD)
| 數量 | 單價 | 總價 |
|---|---|---|
| 1 | $1.315 | $1.32 |
| 10 | $1.182 | $11.82 |
| 30 | $1.057 | $31.71 |
| 100 | $0.963 | $96.30 |
| 500 | $0.926 | $463.00 |
| 1000 | $0.906 | $906.00 |
這些價格會受到市場波動的影響，需要提交報價才能取得最新價格。
詳細說明
Featuring eight bidirectional translating switches, the PCA9548ADGVR is designed to facilitate seamless control through the I2C bus. With the ability to fan out the SCL/SDA upstream pair to eight downstream channels, this device offers a practical solution for managing multiple channels and resolving I2C slave address conflicts. The built-in reset function allows the system master to easily reset the device in the event of improper operation, ensuring smooth and reliable functionality. Additionally, the pass gates of the switches enable the use of different bus voltages on each pair, eliminating the need for additional protection. With 5-V tolerant I/O pins and the capability to communicate between different voltage parts, the PCA9548ADGVR offers versatility and convenience for a wide range of applications
主要特徵
- Compact Package Design
- Ease of Integration
- High Reliability Performance
- No Glitch on Power Up
應用
- Enabling efficient communication
- Managing multiple I2C devices
- Streamlining data transfer
規格
以下是所選零件的基本參數，涉及零件的特性及其所屬類別。
| Pbfree Code | Yes | Rohs Code | Yes |
| Part Life Cycle Code | Lifetime Buy | Part Package Code | SOIC |
| Pin Count ! | 24 | Reach Compliance Code | compliant |
| ECCN Code | EAR99 | HTS Code ! | 8542.39.00.01 |
| Interface IC Type | INTERFACE CIRCUIT | JESD-30 Code | R-PDSO-G24 |
| JESD-609 Code | e4 | Length | 5 mm |
| Moisture Sensitivity Level | 1 | Number of Channels | 8 |
| Number of Functions | 1 | Number of Terminals | 24 |
| Operating Temperature-Max | 85 °C | Operating Temperature-Min | -40 °C |
| Package Body Material | PLASTIC/EPOXY | Package Code | SOP |
| Package Shape | RECTANGULAR | Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 | Qualification Status ! | Not Qualified |
| Seated Height-Max | 1.2 mm | Supply Voltage-Max | 5.5 V |
| Supply Voltage-Min | 2.3 V | Supply Voltage-Nom | 2.5 V |
| Surface Mount ! | YES | Temperature Grade ! | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD | Terminal Form ! | GULL WING |
| Terminal Pitch ! | 0.4 mm | Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | Width | 4.4 mm |
| Addresses | 8 | Supply voltage (max) (V) | 5.5 |
| Supply voltage (min) (V) | 2.3 | Features | Reset pin |
| Rating | Catalog | Frequency (max) (MHz) | 0.4 |
| Operating temperature range (°C) | -40 to 85 | Number of channels | 8 |
Specification Comparison
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is PCA9548ADGVR?
The PCA9548ADGVR is an 8-channel I2C-bus multiplexer designed by NXP Semiconductors. It allows a single I2C bus to control multiple devices or to isolate segments of an I2C bus, enabling efficient communication with various I2C devices in a system.
How Does PCA9548ADGVR Work?
The PCA9548ADGVR operates by selecting one of its 8 channels at a time to connect the common I2C bus to a specific I2C device. This enables the master controller to communicate with different devices sequentially by switching the channel selection. The multiplexer helps in reducing bus contention and addressing conflicts in complex I2C systems.
How Many Pins does PCA9548ADGVR have and What are the Functions of the Pinout Configuration?
The PCA9548ADGVR is housed in a 24-lead TSSOP (Thin Shrink Small Outline Package) package. The pinout configuration includes:
- VCC: Power supply pin for the device.
- GND: Ground pin.
- S0-S2: Channel selection pins for choosing one of the 8 channels.
- SCL, SDA: I2C serial clock and data lines for communication.
- EN: Enables or disables the device.
- A0, A1: Device address configuration pins.
What are the Pros and Cons of PCA9548ADGVR?
Pros:
- Expand I2C Capability: Allows multiple I2C devices to share a common bus efficiently.
- Addressing Flexibility: Enables the addressing of individual I2C devices with channel selection.
- Bus Isolation: Helps in isolating bus segments to avoid communication conflicts.
- Low Standby Current: Consumes low power in standby mode.
- Simple Integration: Provides a straightforward solution for managing multiple I2C peripherals.
Cons:
- Channel Limitation: Limited to 8 channels, may not be suitable for systems requiring more channels.
- Complexity: Requires careful configuration of channel selection and addressing for proper functionality.
- Dependency on I2C: Works specifically for I2C communication, not suitable for other bus protocols.
Are There Any Equivalents/Alternatives to PCA9548ADGVR for Recommendation?
- The ADG725 from Analog Devices is a similar I2C multiplexer with 4 channels.
- Alternatives to the PCA9548ADGVR include the TCA9548A from Texas Instruments and the LTC4316 from Linear Technology.
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