54F 74F540
54F 74F541 Octal Buffer Line Driver with TRI-STATE Outputs
May 1995
54F 74F540
54F 74F541
Octal Buffer Line Driver with TRI-STATE Outputs
General Description
The 鈥橣540 and 鈥橣541 are similar in function to the 鈥橣240 and
鈥橣244 respectively except that the inputs and outputs are
on opposite sides of the package (see Connection Dia-
grams) This pinout arrangement makes these devices es-
pecially useful as output ports for microprocessors allowing
ease of layout and greater PC board density
Features
Y
Y
TRI-STATE outputs drive bus lines
Inputs and outputs opposite side of package allowing
easier interface to microprocessors
Commercial
74F540PC
Military
Package
Number
N20A
Package Description
20-Lead (0 300 Wide) Molded Dual-In-Line
20-Lead Ceramic Dual-In-Line
20-Lead (0 300 Wide) Molded Small Outline JEDEC
20-Lead (0 300 Wide) Molded Small Outline EIAJ
20-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier Type C
20-Lead (0 300 Wide) Molded Dual-In-Line
20-Lead Ceramic Dual-In-Line
20-Lead (0 300 Wide) Molded Small Outline JEDEC
20-Lead (0 300 Wide) Molded Small Outline EIAJ
20-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier Type C
54F540DM (Note 2)
74F540SC (Note 1)
74F540SJ (Note 1)
54F540FM (Note 2)
54F540LM (Note 2)
74F541PC
54F541DM (Note 2)
74F541SC (Note 1)
74F541SJ (Note 1)
54F541FM (Note 2)
54F541LM (Note 2)
J20A
M20B
M20D
W20A
E20A
N20A
J20A
M20B
M20D
W20A
E20A
Note 1
Devices also available in 13 reel Use suffix
e
SCX and SJX
Note 2
Military grade device with environmental and burn-in processing Use suffix
e
DMQB FMQB and LMQB
Connection Diagrams
Pin Assignment for
DIP SOIC and Flatpak
鈥橣540
Pin Assignment
for LCC
TL F 9553 鈥?2
TL F 9553 鈥?1
TRI-STATE is a registered trademark of National Semiconductor Corporation
C
1995 National Semiconductor Corporation
TL F 9553
RRD-B30M75 Printed in U S A