© 1999 Fairchild Semiconductor Corporation DS009553 www.fairchildsemi.com
April 1988
Revised August 1999
7
4F540
•
74F541

Octa
l Buff
er/
L
ine Dri
ver wit
h

3-
ST
A
T
E Output
s
74F540 • 74F541
Octal Buffer/Line Driver with 3-STATE Outputs
General Description
The 74F540 and 74F541 are similar in function to the
74F240 and 74F244 respectively, except that the inputs
and outputs are on opposite sides of the package (see
Connection Diagrams). This pinout arrangement makes
these devices especially useful as output ports for micro-
processors, allowing ease of layout and greater PC board
density.
Features
a73 3-STATE outputs drive bus lines
a73 Inputs and outputs opposite side of package, allowing
easier interface to microprocessors

Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
IEEE/IEC
74F540
IEEE/IEC
74F541
Connection Diagrams
74F540
74F541
Order Number Package Number Package Description
74F540SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74F540SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F540PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
74F541SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74F541SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F541PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide