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PCA9548ADBR
+NomenclatureIC INTERFACE SPECIALIZED 24SSOP
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FabricantTexas Instruments
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Pièce fabricant #PCA9548ADBR
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Package SSOP (DB)-24
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En stock1348
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Spécifications
| Attribut | Valeur |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| Applications | Translating Switch |
| Interface | I²C, SMBus |
| Voltage-Supply | 2.3V ~ 5.5V |
| Package/Case | 24-SSOP (0.209, 5.30mm Width) |
| SupplierDevicePackage | 24-SSOP |
Présentation
Description
The PCA9548ADBR supports standard and fast I²C bus speeds of up to 400 kHz, making it versatile for various applications. Controlled by an I²C master device, it uses a unique I²C slave address to select which downstream channel is active at any given time. This allows complex systems to manage multiple sensors, peripherals, or other I²C devices without address conflicts.
Housed in a compact SSOP (Shrink Small Outline Package), the PCA9548ADBR is ideal for applications in consumer electronics, industrial systems, and embedded computing where space-saving and efficient bus management are crucial. Its low power consumption and wide operating voltage range enhance its suitability for battery-powered and high-density circuit designs.
Equivalent
Features
1. I2C Interface: Compatible with I2C and SMBus standards, supporting 100 kHz and 400 kHz data transfer rates.
2. Eight Channels: Allows access to multiple I2C buses, each with its unique address for different device communication lines.
3. Voltage Range: Operates with a supply voltage from 2.3 V to 5.5 V, making it versatile for various applications.
4. Non-Volatile Registers: Channel selection is controlled via internal registers, retaining settings between accesses.
5. Low Power Consumption: Designed to minimize power usage, making it suitable for battery-operated devices.
6. ESD Protection: Built-in electrostatic discharge protection for robust operation.
7. Compact Package: Available in a small TSSOP package, optimizing board space in compact designs.
8. Crosspoint Switch Architecture: Provides flexibility and isolation between channels to prevent interference.
These features make the PCA9548ADBR ideal for expanding I2C bus capabilities in complex systems.
Pinout
Key functions include:
- 8-channel I²C switch: The PCA9548ADBR can route the I²C signals to one of the eight downstream channels.
- I²C addressability: Multiple devices can be accessed through the same I²C bus by enabling only one channel at a time.
- Programmable control: Selection of the channels is controlled through the I²C-bus, using a programmable control register.
- Voltage translation: The device can be used to interface I²C-bus systems operating at different voltage levels.
These features make it suitable for applications where multiple identical I²C devices need to be connected to a single I²C bus master, allowing for flexible system design and scalability.