Overview
The SN74LVC245APWRE4, produced by Texas Instruments, is an octal bus transceiver with 3-state outputs designed for asynchronous communication between data buses. This device operates within a voltage range of 1.65 V to 3.6 V and supports mixed-mode signal operation, allowing it to handle 5-V input/output voltages with a 3.3-V VCC. It is particularly useful in applications requiring high-speed data transfer and robust signal integrity.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | –0.5 to 6.5 | V |
| Input Voltage Range | –0.5 to 6.5 | V |
| Operating Temperature Range | –40 to 125 | °C |
| Propagation Delay Time (tpd) at 3.3 V | 6.3 | ns |
| ESD Protection | 2000-V Human-Body Model, 1000-V Charged-Device Model | |
| Latch-Up Performance | Exceeds 250 mA per JESD 17 | |
| Package Types | TSSOP (20), TVSOP (20), SOIC (20), VQFN (20), SSOP (20) |
Key Features
- Operates from 1.65 V to 3.6 V
- Inputs accept voltages up to 5.5 V
- Maximum propagation delay time of 6.3 ns at 3.3 V
- Supports mixed-mode signal operation on all ports
- Latch-up performance exceeds 250 mA per JESD 17
- ESD protection exceeds JESD 22 (2000-V Human-Body Model, 1000-V Charged-Device Model)
- Live insertion, partial-power-down mode, and back drive protection supported
- Typical output ground bounce (VOLP) < 0.8 V at VCC = 3.3 V, TA = 25°C
- Typical output voltage overshoot (VOHV) > 2 V at VCC = 3.3 V, TA = 25°C
Applications
- Cable Modem Termination Systems
- Servers
- LED Displays
- Asynchronous communication between data buses in various digital systems
Q & A
- What is the operating voltage range of the SN74LVC245APWRE4? The operating voltage range is from 1.65 V to 3.6 V.
- What is the maximum propagation delay time at 3.3 V? The maximum propagation delay time is 6.3 ns.
- Does the SN74LVC245APWRE4 support mixed-mode signal operation? Yes, it supports mixed-mode signal operation on all ports.
- What is the ESD protection level of the SN74LVC245APWRE4? It exceeds JESD 22 with a 2000-V Human-Body Model and 1000-V Charged-Device Model.
- What are the package types available for the SN74LVC245APWRE4? The available package types include TSSOP (20), TVSOP (20), SOIC (20), VQFN (20), and SSOP (20).
- What is the typical output ground bounce (VOLP) at VCC = 3.3 V and TA = 25°C? The typical output ground bounce is less than 0.8 V.
- Does the SN74LVC245APWRE4 support live insertion and partial-power-down mode? Yes, it supports live insertion, partial-power-down mode, and back drive protection.
- What is the operating temperature range of the SN74LVC245APWRE4? The operating temperature range is from –40°C to 125°C.
- What are some common applications of the SN74LVC245APWRE4? Common applications include cable modem termination systems, servers, LED displays, and asynchronous communication between data buses in various digital systems.
- How does the direction control work in the SN74LVC245APWRE4? The direction control (DIR) pin determines the direction of signal propagation. When high, the signal propagates from A to B, and when low, it propagates from B to A.
