Texas Instruments SN74VMEH22501A 8-Bit Universal Bus Transceiver and Two 1-Bit Bus Transceivers with 3-State Outputs SN74VMEH22501ADGVR

The SN74VMEH22501A is an 8-bit universal bus transceiver that includes two integral 1-bit bus transceivers, designed for operation at 3.3 V with 5-V tolerant inputs. This device supports multiple modes of data transfer, including transparent, latched, and clocked modes, making it versatile for various applications. It features a split LVTTL port that provides a feedback path for control and diagnostics monitoring, enhancing system reliability. The transceiver is compliant with VME64, 2eVME, and 2eSST protocols, making it suitable for high-speed backplane communication. It is optimized for driving large capacitive loads and includes active bus-hold circuitry to maintain valid logic states on unused inputs. The device is specified for live insertion applications, with features such as I_{off} protection and power-up 3-state outputs to prevent driver conflicts during power transitions. Operating over a temperature range of -40¬8C to 85¬8C, the SN74VMEH22501A is designed for robust performance in demanding environments. Its flow-through architecture simplifies PCB layout, and the distributed V_{CC} and GND pins help minimize high-speed switching noise. This product is available in a 48-pin TVSOP package, making it suitable for compact designs.