AT16646G

AT16646 Features Fastest Propagation Speeds in the Industry TPD (F grade) = 2.5 ns, TPD (G grade) = 2.0 ns Maximum derating for capacitive loads 1.5ns/100 pF (F grade) and 1.1ns/100 pF (G grade) Very low ground bounce < 0.6 V @ VCC =5.00 V, Ta=25°C Typical output skew ≤0.25ns Bus Hold circuitry to retain last active state during Tri-State™ Available in SSOP and TSSOP packages Description Atmel’s AT16646 devices are 16-bit high speed, low power Tri-statable D type registers, ideal for use in systems requiring both transparent and registered mode functions. They are organized as two separate 8-bit bus transceivers. Data flow is bi-directional, and can be controlled for multiplexed transmission between A bus and B bus either directly or from the D registers by use of the direction control pin (xDir), output enable (xOE), and select lines (xSAB and xSBA). Storage of data on the A bus and B bus is controlled by the output pins. They have very low ground bounce and excellent input noise rejection, giving the user stable signals in a high speed environment. The Bus Hold feature eliminates the need for pull-up or pull-down resistors and retains the last active state during a Tri-State event. AT16646 Fast Logic™ 16-Bit Tri-State™ Register AT16646F AT16646G Functional Block Diagram Pin Configurations 1DIR SSOP/TSSOP 1SAB 1A1 VCC 1A4 GND 1A7 2A1 2A3 2A4 2A6 2A7 GND 2CLKAB 1CLKAB GND 1A2 1A3 1A5 1A6 1A8 2A2 GND 2A5 VCC 2A8 2SAB 2DIR 1 3 5 7 9 11 13 15 17 19 21 23 25 27...