74ACTQ563 Datasheet | Fairchild Semiconductor

Description The ACTQ563 is a high speed octal latch with buffered mon Latch Enable (LE) and buffered mon Output Enable (OE) inputs. The ACTQ563 is functionally identical to the ACTQ573, but with inverted outputs. The ACTQ563 utilizes Fairchild FACT Quiet Series™ technology to guarantee quiet output switching and improved dynamic threshold performance. FACT Quiet Series features GTO™ output control and undershoot corrector in addition to a split ground bus for superior performance. Features s ICC and IOZ reduced by 50% s Guaranteed simultaneous switching noise level and dynamic threshold performance s Guaranteed pin-to-pin skew AC performance s Improved latch-up immunity s Inputs and outputs on opposite sides of package allow easy interface with microprocessors s Outputs source/sink 24 m A s Faster prop delays than standard ACT563 s Functionally identical to the ACTQ573 but with inverted outputs Ordering Code: Order Number 74ACTQ563PC Package Number N20A Package Description 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Logic Symbols Connection Diagram Pin Assignment for DIP IEEE/IEC Pin Descriptions Pin Names D0- D7 LE OE O0- O7 Data Inputs Latch Enable Input 3-STATE Output Enable Input 3-STATE Latch Outputs Description FACT™, Quiet Series™, FACT Quiet Series™ and GTO™ are trademarks of Fairchild Semiconductor Corporation. © 1999 Fairchild Semiconductor Corporation DS010631.prf .fairchildsemi. Functional Description The ACTQ563 contains eight D-type latches with 3-STATE plementary outputs. When the Latch Enable (LE) input is HIGH, data on the Dn inputs enters the latches. In this condition the latches are transparent, i.e., a latch output will change state each time its D input changes. When LE is LOW the latches store the information that was present on the D inputs a setup time preceding the HIGH-to-LOW transition of LE....