Part Number : SN74GTL16616DL
Function : 17-BIT LVTTL-TO-GTL/GTLPLUS UNIVERSAL BUS TRANSCEIVER
Package : SSOP 56 Pin Type
Maker : Texas Instruments
Pinouts : 
Description :
The SN74GTL16616DL, SN74GTL16616 is a 17-bit UBT transceiver that provides LVTTL-to-GTL/GTL+ and GTL/GTL+-to-LVTTL signal-level translation. Combined D-type flip-flops and D-type latches allow for transparent, latched, clocked, and clocked-enabled modes of data transfer identical to the '16601 function.
Additionally, this device provides for a copy of CLKAB at GTL/GTL+ signal levels (CLKOUT) and conversion of a GTL/GTL+ clock to LVTTL logic levels (CLKIN). This device provides an interface between cards operating at LVTTL logic levels and a backplane operating at GTL/GTL+ signal levels.
Higher-speed operation is a direct result of the reduced output swing (<1 V), reduced input threshold levels, and OEC circuitry.
Logic Diagram
Features
1. Member of Texas Instruments' Widebus Family
2. UBT Transceiver Combines D-Type Latches and D-Type Flip-Flops for Operation in Transparent, Latched, Clocked, or Clock-Enabled Modes
3. OEC Circuitry Improves Signal Integrity and Reduces Electromagnetic Interference
4. GTL Buffered CLKAB Signal (CLKOUT)
5. Translates Between GTL/GTL+ Signal Levels and LVTTL Logic Levels
Official Homepage : https://www.ti.com/product/SN74GTL16616
Datasheet PDF Download : 
Others datasheet of same file :
74GTL16616DGGRE4, 74GTL16616DGGRG4,
GTL16616, SN74GTL16616, SN74GTL16616DGGR
