74ACT563

74ACT563 Octal Latch with 3-STATE Outputs November 1988 Revised December 1998 74ACT563 Octal Latch with 3-STATE Outputs General Description The ACT563 is a high-speed octal latch with buffered common Latch Enable (LE) and buffered common Output Enable (OE) inputs. The ACT563 device is functionally identical to the ACT573, but with inverted outputs. Features s ICC and IOZ reduced by 50% s Inputs and outputs on opposite sides of package allow easy interface with microprocessors s Useful as input or output port for microprocessors s Functionally identical to ACT573 but with inverted outputs s Outputs source/sink 24 mA s ACT563 has TTL-compatible inputs Ordering Code: Order Number 74ACT563SC Package Number M20B Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Logic Symbols Connection Diagram Pin Assignment for SOIC 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™ is a trademark of Fairchild Semiconductor Corporation. © 1999 Fairchild Semiconductor Corporation DS009970.prf www.fairchildsemi.com 74ACT563 Functional Description The ACT563 contains eight D-type latches with 3-STATE complementary outputs. When the Latch Enable (LE) input is HIGH, data on the Dn inputs enters the latches. In this condition the latches a...