Overview
The SN74LVC245ANSR, produced by Texas Instruments, is an octal bus transceiver with 3-state outputs. This device is designed for asynchronous communication between data buses and operates over a wide voltage range from 1.65 V to 3.6 V. It is particularly useful in applications where mixed-mode signal operation is required, supporting both 5-V input/output voltage with a 3.3-V VCC. The SN74LVC245ANSR is known for its high-speed operation, with a maximum propagation delay of 6.3 ns at 3.3 V, making it suitable for various high-performance applications.
Key Specifications
| Parameter | Min | Max | Unit | Conditions |
|---|---|---|---|---|
| VCC Supply Voltage Range | 1.65 | 3.6 | V | |
| Input Voltage Range | -0.5 | 6.5 | V | |
| 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 VOH Undershoot (VOHV) at VCC = 3.3 V, TA = 25°C | 2 | V | ||
| ESD Protection | 2000 V | Human-Body Model | ||
| ESD Protection | 1000 V | Charged-Device Model | ||
| Latch-Up Performance | 250 mA | Per JESD 17 | ||
| Operating Temperature Range | -40 | 125 | °C |
Key Features
- Operates from 1.65 V to 3.6 V VCC, making it versatile for various voltage environments.
- Inputs accept voltages up to 5.5 V, allowing for mixed-mode signal operation.
- Maximum propagation delay of 6.3 ns at 3.3 V, ensuring high-speed data transfer.
- Typical output ground bounce (VOLP) less than 0.8 V and output VOH undershoot (VOHV) greater than 2 V at VCC = 3.3 V, TA = 25°C.
- Supports partial-power-down mode operation and live insertion with back drive protection.
- ESD protection exceeds JESD 22 standards – 2000-V Human-Body Model and 1000-V Charged-Device Model.
- Latch-up performance exceeds 250 mA per JESD 17.
Applications
- Cable Modem Termination Systems
- Servers
- LED Displays
- Network Switches
- Telecom Infrastructure
- Motor Drivers
- I/O Expanders
Q & A
- What is the operating voltage range of the SN74LVC245ANSR? The SN74LVC245ANSR operates from 1.65 V to 3.6 V.
- What is the maximum propagation delay at 3.3 V? The maximum propagation delay at 3.3 V is 6.3 ns.
- Can the inputs handle voltages higher than the VCC? Yes, the inputs can accept voltages up to 5.5 V.
- What is the typical output ground bounce (VOLP) at VCC = 3.3 V? The typical output ground bounce (VOLP) is less than 0.8 V at VCC = 3.3 V, TA = 25°C.
- Does the SN74LVC245ANSR support partial-power-down mode? Yes, it supports partial-power-down mode operation.
- What is the ESD protection level of the SN74LVC245ANSR? The ESD protection exceeds JESD 22 standards – 2000-V Human-Body Model and 1000-V Charged-Device Model.
- What is the latch-up performance of the SN74LVC245ANSR? The latch-up performance exceeds 250 mA per JESD 17.
- In what types of applications is the SN74LVC245ANSR commonly used? It is commonly used in cable modem termination systems, servers, LED displays, network switches, telecom infrastructure, motor drivers, and I/O expanders.
- What are the available package types for the SN74LVC245ANSR? The available packages include VQFN, SSOP, TSSOP, TVSOP, and SOIC.
- What is the operating temperature range of the SN74LVC245ANSR? The operating temperature range is from -40°C to 125°C.
