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SN74LVC8T245DWR
+BOMIC TRANSLATION TXRX 5.5V 24SOIC
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Nhà sản xuấtTexas Dụng cụ
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Ông. Phần #SN74LVC8T245DWR
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Bảng dữ liệu SN74LVC8T245DWR DataSheet
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Gói SOIC-24
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | 74LVC |
| Part Status | Active |
| Logic Type | Translation Transceiver |
| Number of Elements | 2 |
| Number of Bits per Element | 8 |
| Output Type | 3-State |
| Current - Output High Low | 32mA, 32mA |
| Voltage - Supply | 1.65V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Tổng quan
Description
This transceiver features a direction control pin (DIR) for determining the data flow direction and an output enable pin (OE) for disabling outputs, thus placing the device in a high-impedance state. This functionality is useful in bus-oriented systems to prevent contention. The SN74LVC8T245DWR is characterized by its high-speed performance, low power consumption, and robust signal integrity. It also includes ESD protection and is packaged in a space-saving SOIC-24 (DWR) form factor.
Typical applications include interfacing components with different voltage requirements, such as processors and peripheral devices in communications, computing, and consumer electronics.
Equivalent
Features
1. Voltage Level Translation: Operates from 1.65 V to 5.5 V on A-port and from 2.3 V to 5.5 V on B-port, allowing for translation between different voltage levels.
2. Direction Control: Provides bidirectional data flow, controlled by a direction-control input.
3. High-Speed Operation: Designed for high-speed applications, supporting up to 380 Mbps.
4. Low Power Consumption: Incorporates power-saving features like low static power dissipation and partial power-down mode.
5. Ioff Support: Allows for partial power-down, preventing backflow current when the device is powered off.
6. Bus Hold: Includes bus hold on data inputs to eliminate the need for external pull-up resistors.
7. Robustness: Offers over-voltage tolerant inputs and outputs, with high drive capability.
8. Package: Available in a 24-pin SOIC package, making it suitable for various applications.
These features make it ideal for applications requiring data buffering, level shifting, and bus interfacing across different logic-level families.
Pinout
Key features include:
- Pin Count: 20 pins.
- Function: It acts as an 8-bit non-inverting bus transceiver with two separate power-supply rails. The device can translate voltages from 1.65 V to 5.5 V on either A or B ports, allowing bidirectional voltage level translation.
- Direction Control: A control pin (DIR) determines the direction of data flow between the buses.
- Outputs: The outputs are 3-state, allowing for bus sharing and minimization of signal contention on the data paths.
This device is widely used in applications where voltage-level translation is needed, such as interfacing between microcontrollers operating at different voltages.
Manufacturer
Application
1. Voltage Level Shifting: It is used to interface between devices with different voltage levels, such as 3.3V and 5V systems.
2. Digital Signal Buffering: Enhances signal integrity in digital communication by buffering weak signals.
3. Data Bus Isolation: Provides isolation and protection for data buses in complex systems.
4. Microcontroller Interfacing: Useful in connecting microcontrollers to peripherals with different voltage standards.
5. Portable Electronics: Used in battery-powered devices requiring efficient power management and interfacing.
These features make it suitable for various applications in computing, consumer electronics, and communication systems.