74ACTQ652 Datasheet, PDF (1/9 Pages) Fairchild Semiconductor – Quiet Series™ Transceiver/Register

June 1991
Revised November 1999
74ACTQ652
Quiet Series Transceiver/Register
General Description
The ACTQ652 consists of bus transceiver circuits with D-
type flip-flops, and control circuitry arranged for multiplexed
transmission of data directly from the input bus or from
internal registers. Data on the A or B bus will be clocked
into the registers as the appropriate clock pin goes to the
HIGH logic level. Output Enable pins (OEAB, OEBA) are
provided to control the transceiver function.
The ACTQ652 utilizes Fairchild FACT Quiet Series tech-
nology to guarantee quiet output switching and improved
dynamic threshold performance. FACT Quiet Series fea-
tures GTO output control and undershoot corrector in
addition to 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 Independent registers for A and B buses
s Multiplexed real-time and stored data
s Outputs source/sink 24 mA
s TTL-compatible inputs
Ordering Code:
Order Number Package Number
Package Description
74ACTQ652SC
M24B
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body
74ACTQ652MTC
MTC24
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74ACTQ652SPC
N24C
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-100, 0.300” Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
Pin Descriptions
Pin Names
A₀–A₇, B₀–B₇
CPAB, CPBA
SAB, SBA
OEAB, OEBA
Description
A and B Inputs/3-STATE Outputs
Clock Inputs
Select Inputs
Output Enable Inputs
FACT, Quiet Series, FACT Quiet Series and GTO are trademarks of Fairchild Semiconductor Corporation.
© 1999 Fairchild Semiconductor Corporation DS010933
www.fairchildsemi.com