74ACTQ843

74ACTQ843 Quiet Series 9-Bit Transparent Latch with 3-STATE Outputs

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74ACTQ843 Quiet Series 9-Bit Transparent Latch with 3-STATE Outputs

March 1990 Revised September 2000

74ACTQ843 Quiet Series 9-Bit Transparent Latch with 3-STATE Outputs
General Description
The ACTQ843 bus interface latch is designed to eliminate the extra packages required to buffer existing latches and provide extra data width for wider address/data paths. The ACTQ843 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 Inputs and outputs on opposite sides of package for easy interface with microprocessors s Improved latch-up immunity s Outputs source/sink 24 mA s 3-STATE outputs for bus interfacing s TTL compatible inputs

Ordering Code:
Order Number 74ACTQ843SC 74ACTQ843SPC Package Number 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

Device also available in Tape and Reel. Specify by appending suffix letter "X" to the ordering code.

Logic Symbols

Connection Diagram

Pin Descriptions
Pin Names D0 D8 O0 O8 OE LE CLR PRE Description Data Inputs Data Outputs Output Enable Latch Enable Clear Preset

FACT, Quiet Series, FACT Quiet Series and GTO are trademarks of Fairchild Semiconductor Corporation.

2000 Fairchild Semiconductor Corporation

DS010689

www.fairchildsemi.com