Overview
The SN74LVC8T245RHLR is an eight-bit non-inverting bus transceiver produced by Texas Instruments. This device is designed for bidirectional voltage level translation and features configurable dual power supply rails. It operates with supply voltages ranging from 1.65 V to 5.5 V, making it versatile for various low-voltage applications. The SN74LVC8T245RHLR is optimized for asynchronous communication between two data buses and includes control inputs for direction and output enable, allowing for flexible data transmission between the A and B ports.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 24-VFQFN Exposed Pad |
| Pins | 24 |
| Operating Temperature Range | -40°C to 85°C |
| Voltage - VCCA | 1.65 V to 5.5 V |
| Voltage - VCCB | 1.65 V to 5.5 V |
| Output Type | Tri-State, Non-Inverted |
| Channel Type | Bidirectional |
| Number of Circuits | 1 |
| Channels per Circuit | 8 |
| ESD Protection | 4000-V Human-Body Model, 100-V Machine Model, 1000-V Charged-Device Model |
Key Features
- Control inputs VIH/VIL levels are referenced to VCCA voltage.
- VCC isolation feature – if either VCC input is at GND, all outputs are in the high-impedance state.
- Fully configurable dual-rail design allows each port to operate over the full 1.65-V to 5.5-V power-supply range.
- Latch-up performance exceeds 100 mA per JESD 78, class II.
- ESD protection exceeds JESD 22.
- Input circuitry on both A and B ports is always active.
- Designed for partial-power-down applications using Ioff circuitry.
Applications
- Personal electronic devices.
- Industrial applications.
- Enterprise systems.
- Telecom equipment.
Q & A
- What is the primary function of the SN74LVC8T245RHLR? The SN74LVC8T245RHLR is an eight-bit non-inverting bus transceiver designed for bidirectional voltage level translation.
- What is the operating voltage range for VCCA and VCCB? Both VCCA and VCCB operate within the range of 1.65 V to 5.5 V.
- What type of output does the SN74LVC8T245RHLR have? The output is tri-state and non-inverted.
- How many channels does the SN74LVC8T245RHLR have? It has 8 channels per circuit.
- What is the ESD protection level of the SN74LVC8T245RHLR? It exceeds 4000-V Human-Body Model, 100-V Machine Model, and 1000-V Charged-Device Model.
- What is the purpose of the VCC isolation feature? The VCC isolation feature ensures that if either VCC input is at GND, all outputs are in the high-impedance state.
- Can the SN74LVC8T245RHLR be used in partial-power-down applications? Yes, it is designed for partial-power-down applications using Ioff circuitry.
- What is the operating temperature range of the SN74LVC8T245RHLR? The operating temperature range is -40°C to 85°C.
- How does the direction-control (DIR) input and output-enable (OE) input function? The DIR and OE inputs control the direction of data transmission and the output state (high-impedance or active).
- What package type is the SN74LVC8T245RHLR available in? It is available in a 24-VFQFN Exposed Pad package.
