Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Bulk,Tube |
| Series | 74AVC |
| 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 | 12mA, 12mA |
| Voltage - Supply | 1.2V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Tổng quan
Description
The SN74AVC8T245PW is a dual-supply, 8-bit non-inverting bus transceiver from Texas Instruments. It’s designed for asynchronous communication between data buses and can operate with separate supply voltages ranging from 1.2 V to 3.6 V on either side, making it ideal for voltage level translation between different logic levels. This device is part of the AVC family, known for its low power consumption and high-speed performance.
The SN74AVC8T245PW features direction control (DIR) and output-enable (OE) inputs, allowing for bidirectional data flow and active bus management. It supports partial power-down applications using Ioff circuitry, preventing backflow current when the device is powered down. The device operates with a wide temperature range, making it suitable for various industrial applications.
Housed in a TSSOP (Thin Shrink Small Outline Package), it provides a compact solution for space-constrained designs. The SN74AVC8T245PW is extensively used in applications requiring efficient data transfer and voltage translation, such as portable electronics, communication devices, and computing equipment.
The SN74AVC8T245PW features direction control (DIR) and output-enable (OE) inputs, allowing for bidirectional data flow and active bus management. It supports partial power-down applications using Ioff circuitry, preventing backflow current when the device is powered down. The device operates with a wide temperature range, making it suitable for various industrial applications.
Housed in a TSSOP (Thin Shrink Small Outline Package), it provides a compact solution for space-constrained designs. The SN74AVC8T245PW is extensively used in applications requiring efficient data transfer and voltage translation, such as portable electronics, communication devices, and computing equipment.
Equivalent
The SN74AVC8T245PW is an 8-bit dual-supply bus transceiver with configurable voltage-level shifting. Equivalent products include:
1. NXP 74AVC8T245 - Offers similar functionality with level shifting.
2. ON Semiconductor FXLA104 - Provides voltage-level translation with similar features.
3. Microchip Technology MCP23017 - Similar I/O expander, though broader in function.
4. Fairchild’s FXL4TD245 - Another dual-supply voltage-level translating transceiver.
Always verify datasheets for compatibility as specifications can vary.
1. NXP 74AVC8T245 - Offers similar functionality with level shifting.
2. ON Semiconductor FXLA104 - Provides voltage-level translation with similar features.
3. Microchip Technology MCP23017 - Similar I/O expander, though broader in function.
4. Fairchild’s FXL4TD245 - Another dual-supply voltage-level translating transceiver.
Always verify datasheets for compatibility as specifications can vary.
Features
The SN74AVC8T245PW is a dual-supply bus transceiver with configurable voltage-level translation and is part of Texas Instruments' AVC family. Key features include:
1. Voltage-Level Translation: Supports translation between 1.2 V to 3.6 V on A port and 1.2 V to 3.6 V on B port, making it versatile for interfacing different logic levels.
2. Eight-Bit Transceiver: Supports bidirectional data flow, ideal for applications requiring data transfer between two buses.
3. Direction Control: Features a direction control input to determine the direction of data flow.
4. Low Power Consumption: Designed for low dynamic power consumption.
5. High-Speed Operation: Offers high data rates, suitable for applications requiring fast data transfer.
6. Partial Power-Down Mode: Includes Ioff support, which prevents damaging current backflow during power-off states.
7. Bus-Hold Data Inputs: Prevents floating inputs and eliminates the need for external pull-up or pull-down resistors.
8. Small Package: Comes in TSSOP (Thin Shrink Small-Outline Package), which saves board space.
These features make the SN74AVC8T245PW suitable for a wide range of applications in computing and communication devices.
1. Voltage-Level Translation: Supports translation between 1.2 V to 3.6 V on A port and 1.2 V to 3.6 V on B port, making it versatile for interfacing different logic levels.
2. Eight-Bit Transceiver: Supports bidirectional data flow, ideal for applications requiring data transfer between two buses.
3. Direction Control: Features a direction control input to determine the direction of data flow.
4. Low Power Consumption: Designed for low dynamic power consumption.
5. High-Speed Operation: Offers high data rates, suitable for applications requiring fast data transfer.
6. Partial Power-Down Mode: Includes Ioff support, which prevents damaging current backflow during power-off states.
7. Bus-Hold Data Inputs: Prevents floating inputs and eliminates the need for external pull-up or pull-down resistors.
8. Small Package: Comes in TSSOP (Thin Shrink Small-Outline Package), which saves board space.
These features make the SN74AVC8T245PW suitable for a wide range of applications in computing and communication devices.
Pinout
The SN74AVC8T245PW is a dual-supply, 8-bit, non-inverting bus transceiver with configurable voltage-level shifting and 3-state outputs. It comes in a TSSOP (Thin Shrink Small-Outline Package) with 24 pins.
Here's a brief overview of its pin functions:
1. VCCA: Supply voltage for A-side (lower voltage level).
2. VCCB: Supply voltage for B-side (higher voltage level).
3. OE: Output Enable, active-low. When low, the device is enabled; when high, it is disabled.
4. DIR: Direction control. This pin controls the direction of data flow. When DIR is low, data flows from A to B; when high, data flows from B to A.
5. A1–A8: Data inputs/outputs for the A-side.
6. B1–B8: Data inputs/outputs for the B-side.
7. GND: Ground reference.
The SN74AVC8T245PW is used to interface between different voltage levels in digital circuits, allowing for bidirectional data transfer with direction control, which is ideal for mixed-voltage applications.
Here's a brief overview of its pin functions:
1. VCCA: Supply voltage for A-side (lower voltage level).
2. VCCB: Supply voltage for B-side (higher voltage level).
3. OE: Output Enable, active-low. When low, the device is enabled; when high, it is disabled.
4. DIR: Direction control. This pin controls the direction of data flow. When DIR is low, data flows from A to B; when high, data flows from B to A.
5. A1–A8: Data inputs/outputs for the A-side.
6. B1–B8: Data inputs/outputs for the B-side.
7. GND: Ground reference.
The SN74AVC8T245PW is used to interface between different voltage levels in digital circuits, allowing for bidirectional data transfer with direction control, which is ideal for mixed-voltage applications.
Manufacturer
The SN74AVC8T245PW is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components. TI is known for its development of analog chips and embedded processors, which are used in various applications across different industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. The company focuses on innovation and efficiency, aiming to help engineers design and develop new technologies. TI is headquartered in Dallas, Texas, and has a substantial presence worldwide, with a commitment to research and development, manufacturing excellence, and customer support.
Application
The SN74AVC8T245PW is a dual-supply, 8-bit voltage level translator used in a variety of applications. Key areas include interfacing between different voltage levels in communication systems, microcontrollers, and microprocessors. It is particularly useful in portable electronics, such as smartphones and tablets, due to its low power consumption and high data throughput capabilities. Additionally, it is employed in automotive electronics, industrial control systems, and consumer electronics where voltage level adjustments are needed for reliable data transfer between components operating at different voltage levels. Its high-speed bidirectional signal translation makes it suitable for modern computing and networking applications.
Package
The SN74AVC8T245PW is a bidirectional voltage-level translator from Texas Instruments. It is packaged in a TSSOP-24 (Thin Shrink Small Outline Package) type.
