74ACQ544 Datasheet | Fairchild Semiconductor

Description The ACQ/ACTQ544 is an inverting octal transceiver containing two sets of D-type registers for temporary storage of data flowing in either direction. Separate Latch Enable and Output Enable inputs are provided for each register to permit independent input and output control in either direction of data flow. The 544 inverts data in both directions. The ACQ/ACTQ 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 Guaranteed simultaneous switching noise level and dynamic threshold performance s Guaranteed pin-to-pin skew AC performance s 8-bit inverting octal latched transceiver s Separate controls for data flow in each direction s Back-to-back registers for storage s Outputs source/sink 24 m A Ordering Code: Order Number 74ACQ544SC .. Package Number M24B N24C M24B N24C Package Description 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide 74ACQ544SPC 74ACTQ544SC 74ACTQ544SPC Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Connection Diagram Pin Descriptions Pin Names OEAB OEBA CEAB CEBA LEAB LEBA A0 - A7 Description A-to-B Output Enable Input (Active LOW) B-to-A Output Enable Input (Active LOW) A-to-B Enable Input (Active LOW) B-to-A Enable Input (Active LOW) A-to-B Latch Enable Input (Active LOW) B-to-A Latch Enable Input (Active LOW) A-to-B Data Inputs or B-to-A 3-STATE Outputs B0 - B7 B-to-A Data Inputs or A-to-B 3-STATE Outputs FACT, Quiet Series, FACT Quiet Series and GTO are trademarks of Fairchild Semiconductor Corporation. © 2000...