規格
| 屬性 | 價值 |
| Package | Tube |
| Series | 74LVCH |
| ProductStatus | Active |
| LogicType | Translation Transceiver |
| NumberofElements | 2 |
| NumberofBitsperElement | 8 |
| OutputType | 3-State |
| Current-OutputHighLow | 32mA, 32mA |
| Voltage-Supply | 1.65V ~ 5.5V |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 24-TSSOP (0.173, 4.40mm Width) |
概述
Description
The SN74LVCH8T245PW is a dual-supply bus transceiver from Texas Instruments designed for high-performance applications. It operates as an 8-bit non-inverting bus transceiver with configurable voltage level shifting, making it suitable for interfacing between devices operating at different voltage levels. It supports a wide range of input and output voltages, from 1.65 V to 3.6 V on the A-side and 2.3 V to 5.5 V on the B-side, providing flexibility for various applications.
Key features include direction control (DIR) and output enable (OE) pins for managing data flow, allowing for bidirectional data transfer. The device is part of the LVCH series, known for its low power consumption and high-speed operation. It also includes features like partial power-down mode to prevent backflow current when the device is powered down, and it is designed to protect against excessive current with its drive strength capabilities.
Housed in a TSSOP-24 package, the SN74LVCH8T245PW is ideal for use in digital systems requiring a reliable and efficient translation between different voltage domains.
Key features include direction control (DIR) and output enable (OE) pins for managing data flow, allowing for bidirectional data transfer. The device is part of the LVCH series, known for its low power consumption and high-speed operation. It also includes features like partial power-down mode to prevent backflow current when the device is powered down, and it is designed to protect against excessive current with its drive strength capabilities.
Housed in a TSSOP-24 package, the SN74LVCH8T245PW is ideal for use in digital systems requiring a reliable and efficient translation between different voltage domains.
Equivalent
The SN74LVCH8T245PW is a dual-supply octal bus transceiver with 3-state outputs from Texas Instruments. Equivalent products from other manufacturers may include:
1. NXP's 74LVC8T245 - An octal dual-supply translating transceiver.
2. ON Semiconductor's NLVX8T245 - A similar dual-supply translating transceiver.
3. Microchip's 74ALVC164245 - A low-voltage bidirectional transceiver with similar functionality.
Always verify voltage levels, pin compatibility, and specific features before substituting components.
1. NXP's 74LVC8T245 - An octal dual-supply translating transceiver.
2. ON Semiconductor's NLVX8T245 - A similar dual-supply translating transceiver.
3. Microchip's 74ALVC164245 - A low-voltage bidirectional transceiver with similar functionality.
Always verify voltage levels, pin compatibility, and specific features before substituting components.
Features
The SN74LVCH8T245PW is an 8-bit bus transceiver with configurable voltage-level translation and a direction control pin. It belongs to Texas Instruments' family of logic devices. Key features include:
1. Voltage-Level Translation: Supports dual-supply operation, allowing level translation between 1.65 V to 5.5 V for VCCA and 1.65 V to 5.5 V for VCCB.
2. High-Speed Operation: Capable of handling high data rates up to 380 Mbps (push-pull) or 100 Mbps (open-drain), making it suitable for a variety of high-speed digital interfacing applications.
3. Low Power Consumption: Features low dynamic power consumption and supports partial power-down with Ioff, preventing backflow current when the device is powered down.
4. Latch-Up Performance: Meets JEDEC standard JESD 78, Class II, offering good robustness against latch-up.
5. Control and Directionality: Includes an output enable (OE) and a direction control pin (DIR) for selecting the direction of data flow.
6. Package Type: Available in TSSOP (Thin Shrink Small Outline Package), which makes it suitable for space-constrained applications.
These features make the SN74LVCH8T245PW versatile for various communication interfaces between components operating at different voltage levels.
1. Voltage-Level Translation: Supports dual-supply operation, allowing level translation between 1.65 V to 5.5 V for VCCA and 1.65 V to 5.5 V for VCCB.
2. High-Speed Operation: Capable of handling high data rates up to 380 Mbps (push-pull) or 100 Mbps (open-drain), making it suitable for a variety of high-speed digital interfacing applications.
3. Low Power Consumption: Features low dynamic power consumption and supports partial power-down with Ioff, preventing backflow current when the device is powered down.
4. Latch-Up Performance: Meets JEDEC standard JESD 78, Class II, offering good robustness against latch-up.
5. Control and Directionality: Includes an output enable (OE) and a direction control pin (DIR) for selecting the direction of data flow.
6. Package Type: Available in TSSOP (Thin Shrink Small Outline Package), which makes it suitable for space-constrained applications.
These features make the SN74LVCH8T245PW versatile for various communication interfaces between components operating at different voltage levels.
Pinout
The SN74LVCH8T245PW is a dual-supply bus transceiver with configurable voltage translation and three-state outputs, designed for communication between data buses of different voltage levels. It features 20 pins in its TSSOP package. The primary function is bidirectional voltage translation, allowing data transfer between buses ranging from 1.65 V to 3.6 V on one side and 1.65 V to 5.5 V on the other.
Key pin functions include:
- A and B Ports (A1-A8, B1-B8): 8-bit data bus ports for input/output.
- DIR (Direction Control): Determines data flow direction between buses (A to B or B to A).
- OE (Output Enable): When low, enables the output buffers, allowing data transfer; when high, places the outputs in a high-impedance state.
- VCCA and VCCB: Power supply pins for A and B ports, respectively.
- GND: Ground connection.
These features make the SN74LVCH8T245PW suitable for mixed-signal environments where voltage levels between communicating devices differ.
Key pin functions include:
- A and B Ports (A1-A8, B1-B8): 8-bit data bus ports for input/output.
- DIR (Direction Control): Determines data flow direction between buses (A to B or B to A).
- OE (Output Enable): When low, enables the output buffers, allowing data transfer; when high, places the outputs in a high-impedance state.
- VCCA and VCCB: Power supply pins for A and B ports, respectively.
- GND: Ground connection.
These features make the SN74LVCH8T245PW suitable for mixed-signal environments where voltage levels between communicating devices differ.
Manufacturer
The SN74LVCH8T245PW is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and manufactures a wide range of electronic components and integrated circuits. Headquartered in Dallas, Texas, TI is a leading player in the electronics industry, particularly known for its analog and embedded processing products. The company serves diverse markets, including automotive, industrial, personal electronics, communications, and enterprise systems. TI is recognized for its innovation and contributions to the advancement of semiconductor technology.
Application
The SN74LVCH8T245PW is a dual-supply bus transceiver primarily used for voltage level translation and bidirectional data transfer in mixed-voltage systems. Its application areas include:
1. Communication Interfaces: Facilitating data exchange between components operating at different voltage levels.
2. Microcontroller Interfacing: Connecting microcontrollers with peripherals operating at different supply voltages.
3. Memory Modules: Enabling data transfer between memory devices and processors with varying voltage requirements.
4. Portable Electronics: Used in devices like smartphones and tablets due to its low power consumption.
5. Industrial Automation: Supporting robust communication in systems with varied voltage standards.
6. Consumer Electronics: Ensuring compatibility among components in TVs, gaming consoles, etc.
1. Communication Interfaces: Facilitating data exchange between components operating at different voltage levels.
2. Microcontroller Interfacing: Connecting microcontrollers with peripherals operating at different supply voltages.
3. Memory Modules: Enabling data transfer between memory devices and processors with varying voltage requirements.
4. Portable Electronics: Used in devices like smartphones and tablets due to its low power consumption.
5. Industrial Automation: Supporting robust communication in systems with varied voltage standards.
6. Consumer Electronics: Ensuring compatibility among components in TVs, gaming consoles, etc.
Package
The SN74LVCH8T245PW is a dual-supply bus transceiver with configurable voltage translation and 3-state outputs. It comes in a TSSOP (Thin Shrink Small Outline Package) with a 24-pin configuration.
