Overview
The SN74LVCH245ADWR is an octal bus transceiver produced by Texas Instruments. This component is designed to operate within a voltage range of 1.65 V to 3.6 V, making it versatile for various system environments. It is particularly useful in mixed 3.3-V/5-V systems, as it can accept input voltages up to 5.5 V. The SN74LVCH245ADWR is packaged in a 20-pin SOIC (Small Outline Integrated Circuit) package and supports surface mount technology.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage Range | 1.65 V to 3.6 V |
| Input Voltage Range | Up to 5.5 V |
| Maximum Propagation Delay (tpd) at 3.3 V | 6.3 ns |
| Output Ground Bounce (VOLP) at VCC = 3.3 V, TA = 25°C | < 0.8 V |
| Output Undershoot (VOHV) at VCC = 3.3 V, TA = 25°C | > 2 V |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | 20-SOIC (0.295", 7.50mm Width) |
| Number of Bits per Element | 8 |
| Output Type | 3-State |
| ESD Protection | 2000-V Human-Body Model, 200-V Machine Model |
Key Features
- Operates from 1.65 V to 3.6 V, allowing for use in a wide range of voltage environments.
- Inputs can accept voltages up to 5.5 V, making it suitable for mixed 3.3-V/5-V systems.
- Supports live insertion, partial-power-down mode, and back-drive protection.
- Bus hold on data inputs eliminates the need for external pullup or pulldown resistors.
- Latch-up performance exceeds 250 mA per JESD 17.
- ESD protection exceeds JESD 22 standards.
- Compliant with MIL-PRF-38535 for certain parameters.
Applications
The SN74LVCH245ADWR is ideal for various applications requiring signal translation and buffering in mixed-voltage systems. It is particularly useful in:
- Mixed 3.3-V/5-V system environments where signal translation is necessary.
- High-speed data transmission systems requiring low propagation delay.
- Systems that require live insertion and partial-power-down capabilities.
- Applications needing robust ESD protection and latch-up performance.
Q & A
- What is the operating voltage range of the SN74LVCH245ADWR?
The operating voltage range is from 1.65 V to 3.6 V.
- Can the inputs of the SN74LVCH245ADWR be driven by 5-V devices?
- What is the maximum propagation delay at 3.3 V?
The maximum propagation delay at 3.3 V is 6.3 ns.
- Does the SN74LVCH245ADWR support live insertion and partial-power-down mode?
- What type of ESD protection does the SN74LVCH245ADWR have?
- What is the operating temperature range of the SN74LVCH245ADWR?
- What is the package type of the SN74LVCH245ADWR?
- Does the SN74LVCH245ADWR require external pullup or pulldown resistors?
- Is the SN74LVCH245ADWR compliant with any military standards?
- What is the number of bits per element in the SN74LVCH245ADWR?
