Overview
The SN74LVC245APWRG3, produced by Texas Instruments, is an octal bus transceiver with 3-state outputs. This device is designed for asynchronous communication between data buses and supports mixed-mode signal operation on all ports. It operates over a wide voltage range from 1.65 V to 3.6 V, making it versatile for various applications. The SN74LVC245A is particularly useful in systems where data needs to be transmitted between different voltage domains, such as 3.3 V and 5 V systems.
Key Specifications
| Parameter | Min | Max | Unit | Conditions |
|---|---|---|---|---|
| VCC Supply Voltage | 1.65 | 3.6 | V | |
| Input Voltage Range | -0.5 | 6.5 | V | |
| Propagation Delay Time (tpd) | 6.3 | ns | VCC = 3.3 V, CL = 50 pF | |
| 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 | 85 | °C |
Key Features
- Operates from 1.65 V to 3.6 V, allowing for mixed-mode signal operation on all ports.
- Inputs accept voltages up to 5.5 V.
- Maximum propagation delay time of 6.3 ns at 3.3 V.
- Supports partial-power-down mode operation (Ioff).
- ESD protection exceeds JESD 22 – 2000-V Human-Body Model and 1000-V Charged-Device Model.
- Latch-up performance exceeds 250 mA per JESD 17.
- Typical output ground bounce (VOLP) < 0.8 V at VCC = 3.3 V, TA = 25°C.
- Typical output VOH undershoot (VOHV) > 2 V at VCC = 3.3 V, TA = 25°C.
Applications
- Cable Modem Termination Systems.
- Servers.
- LED Displays.
- Systems requiring data transmission between different voltage domains (e.g., 3.3 V and 5 V systems).
Q & A
- What is the operating voltage range of the SN74LVC245A?
The SN74LVC245A operates from 1.65 V to 3.6 V.
- What is the maximum propagation delay time of the SN74LVC245A at 3.3 V?
The maximum propagation delay time is 6.3 ns at 3.3 V.
- Does the SN74LVC245A support mixed-mode signal operation?
- What is the ESD protection level of the SN74LVC245A?
The ESD protection exceeds 2000-V Human-Body Model and 1000-V Charged-Device Model.
- What is the latch-up performance of the SN74LVC245A?
The latch-up performance exceeds 250 mA per JESD 17.
- Can the SN74LVC245A operate in partial-power-down mode?
- What are some common applications of the SN74LVC245A?
Common applications include cable modem termination systems, servers, LED displays, and systems requiring data transmission between different voltage domains.
- What is the typical output ground bounce (VOLP) at 3.3 V and 25°C?
The typical output ground bounce (VOLP) is less than 0.8 V.
- What is the typical output VOH undershoot (VOHV) at 3.3 V and 25°C?
The typical output VOH undershoot (VOHV) is greater than 2 V.
- What are the available package options for the SN74LVC245A?
The available packages include VQFN, SSOP, TSSOP, TVSOP, SOIC, and others as listed in the datasheet.
