74ACTQ16646

74ACTQ16646 16-Bit Transceiver/Register with 3-STATE Outputs

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74ACTQ16646 16-Bit Transceiver/Register with 3-STATE Outputs

June 1991 Revised January 1999

74ACTQ16646 16-Bit Transceiver/Register with 3-STATE Outputs
General Description
The ACTQ16646 contains sixteen non-inverting bidirectional registered bus transceivers providing multiplexed transmission of data directly from the input bus or from the internal storage registers. Each byte has separate control inputs which can be shorted together for full 16-bit operation. The DIR inputs determine the direction of data flow through the device. The CPAB and CPBA inputs load data into the registers on the LOW-to-HIGH transition. The ACTQ16646 utilizes Fairchild Quiet SeriesTM technology to guarantee quiet output switching and improved dynamic threshold performance. FACT Quiet SeriesTM features GTOTM output control and undershoot corrector for superior performance.

Features
s Utilizes Fairchild FACT Quiet Series technology s Guaranteed simultaneous switching noise level and dynamic threshold performance s Guaranteed pin-to-pin output skew s Independent registers for A and B buses s Multiplexed real-time and stored data transfers s Separate control logic for each byte s 16-bit version of the ACTQ646 s Outputs source/sink 24 mA s Additional specs for Multiple Output Switching s Output loading specs for both 50 pF and 250 pF loads

Ordering Code:
Order Number 74ACTQ16646SSC 74ACTQ16646MTD Package Number MS56A MTD56 Package Description 56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300" Wide 56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide

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

Logic Symbol

Connection Diagram
Pin Assignment for SSOP and TSSOP

FACTTM, Quiet SeriesTM, FACT Quiet SeriesTM and GTOTM are trademarks of Fairchild Semiconductor Corporation.

1999 Fairchild Semiconductor Corporation

DS010937.prf

www.fairchildsemi.com