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Part Number: AT16646

 

 

 

 

Description: Atmel's AT16646 devices are 16-bit high speed, low power Tri-statable D type registers, ideal for use in systems requir...


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AT16646 General 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 tran-sceivers. Data flow is bidirectional, 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 gr-ound 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 Maximum Ratings

Operating Temperature...........................0°C to +70°C

Storage Temperature ...................... -65°C to +150°C

Voltage on any Pin
with Respect to Ground.......................-2.0V to +7.0V(1)

Maximum Operating Voltage...................................6.0V

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-StateTM
` Available in SSOP and TSSOP packages

AT16646 Connection Diagram

AT16646 Connection Diagram

AT16646 datasheet

AT16646F
PDF/DataSheet Download

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