74FR543 Datasheet, PDF (1/6 Pages) Fairchild Semiconductor – Octal Latched Transceiver with 3-STATE Outputs

January 1991
Revised August 1999
74FR543
Octal Latched Transceiver with 3-STATE Outputs
General Description
The 74FR543 octal transceiver contains two sets of D-type
latches for temporary storage of data flowing in either
direction. Separate Latch Enable and Output Enable inputs
are provided for each register to permit independent con-
trol of inputting and outputting in either direction of data
flow. Both the A and B outputs will source 15 mA and sink
64 mA.
Features
s Functionally equivalent to 74F543
s Back-to-back registers for storage
s Bidirectional data path
s A and B outputs have current sourcing capability of
15 mA and current sinking capability of 64 mA
s Separate controls for data flow in each direction
s Guaranteed pin-to-pin skew
s Guaranteed 4000V minimum ESD protection
Ordering Code:
Order Number Package Number
Package Description
74FR543SC
M24B
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74FR543SPC
N24C
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-100, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagram
© 1999 Fairchild Semiconductor Corporation DS010902
www.fairchildsemi.com