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PCA9507D
+BOM2-WIRE SERIAL BUS EXTENDER FOR H
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メーカーパナソニック電子部品
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メーカー品番 #PCA9507D
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データシート PCA9507D DataSheet
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パッケージ SOP-8
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在庫状況4998
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Package | Bulk |
| ProductStatus | Active |
概要
Description
One key feature of the PCA9507D is its ability to enable level shifting, allowing it to connect a low-voltage processor or microcontroller to higher voltage I2C devices. The device features two open-drain I/O pins, SDA and SCL, which are used for connecting to the I2C bus. These pins are capable of handling different voltage levels on each side, supporting voltage translation between 1.0 V and 5.5 V.
Additionally, the PCA9507D offers robust ESD protection and has a low power consumption, making it suitable for battery-operated devices. It is typically used in applications like smartphones, tablets, and other embedded systems requiring reliable I2C communication across different voltage domains.
Equivalent
Features
1. Voltage Translation: Supports bidirectional voltage level translation between 0.9 V and 5.5 V, facilitating communication between different voltage domains.
2. Frequency: Operates at standard, fast, and fast-mode plus (Fm+) I²C speeds, up to 1 MHz.
3. Bus Drive Capability: Provides strong drive capability on the A-side and B-side, supporting larger bus line capacitances, which enables longer communication lines.
4. Capacitance Isolation: Isolates bus capacitance on both sides, allowing systems to communicate over longer distances without degrading signal quality.
5. Rise Time Accelerator: Integrated accelerators improve rise times on both sides of the bus, enhancing performance.
6. Enable Pin: Includes an enable pin for isolating the A-side from the B-side, which can help in power saving and system control.
7. Low Propagation Delay: Offers fast response times with minimal delay, which is crucial for maintaining high data integrity across the bus.
These features make the PCA9507D suitable for complex I²C applications that require reliable communication over extended distances.
Pinout
1. VCC(A): Power supply for the A-side, typically connected to 3.3V or 5V.
2. SDA(A): Serial Data for A-side; acts as a bidirectional data line for the I²C bus.
3. SCL(A): Serial Clock for A-side; clock line for the I²C bus.
4. GND: Ground reference for both A-side and B-side.
5. SDA(B): Serial Data for B-side; connects to the B-side I²C bus data line.
6. SCL(B): Serial Clock for B-side; connects to the B-side I²C bus clock line.
7. EN: Enable pin; used to enable or disable the buffer function.
8. VCC(B): Power supply for the B-side, can be different from VCC(A) to allow level shifting.
The PCA9507D enables communication between I²C devices operating at different voltage levels, making it useful for mixed-voltage applications.
Manufacturer
Application
1. Consumer Electronics: Enhances communication between I2C devices in TVs, set-top boxes, and gaming consoles.
2. Computing: Facilitates data transfer in desktops, laptops, and servers.
3. Industrial Automation: Supports robust I2C communication in control systems and sensors.
4. Automotive: Used in infotainment systems and electronic control units.
5. Telecommunications: Aids in network equipment for efficient data routing.
6. Medical Devices: Ensures reliable data exchange in diagnostic and monitoring equipment.
Its ability to handle high-speed signals makes it suitable for any application requiring efficient I2C communication over long distances or in electrically noisy environments.