SN74GTLPH1645DGGR

The SN74GTLPH1645DGGR from Texas Instruments is a 16-bit bus transceiver designed for high-speed backplane applications. It facilitates bidirectional signal translation between GTLP signal levels and LVTTL logic levels. This device is partitioned into two 8-bit transceivers, offering flexibility in system design.

Key features include LVTTL interfaces that are 5-V tolerant, high-drive GTLP outputs rated at 100 mA, and LVTTL outputs capable of ±24 mA. It also incorporates Variable Edge-Rate Control (ERC) to optimize data transfer rates and signal integrity in distributed loads. The transceiver supports I off, Power-Up 3-State, and BIAS V CC, along with live insertion capabilities. Bus hold is provided on A-port data inputs, and distributed V CC and GND pins help minimize switching noise.

Designed for demanding environments, the SN74GTLPH1645DGGR operates within a temperature range of -40°C to 85°C. Its latch-up performance exceeds 100 mA per JESD 78, Class II, ensuring robust operation. The component is supplied in a 56-TSSOP package, suitable for surface mounting.

This transceiver is part of the Texas Instruments Widebus family, utilizing TI-OPC and OEC circuitry to limit ringing and improve signal integrity on unevenly loaded backplanes. Its high drive capability allows for incident-wave switching in heavily loaded backplanes.