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74F399 Datasheet(PDF) 2 Page - Texas Instruments

Part No. 74F399
Description  54F398 54F399 74F398 74F399 Quad 2-Port Register
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo TI1 - Texas Instruments

74F399 Datasheet(HTML) 2 Page - Texas Instruments

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TLF9533
May 1995
54F74F398
 54F74F399
Quad 2-Port Register
General Description
The ’F398 and ’F399 are the logical equivalents of a quad
2-input multiplexer feeding into four edge-triggered flip-
flops A common Select input determines which of the two
4-bit words is accepted The selected data enters the flip-
flops on the rising edge of the clock The ’F399 is the 16-pin
version of the ’F398 with only the Q outputs of the flip-flops
available
Features
Y
Select inputs from two data sources
Y
Fully positive edge-triggered operation
Y
Both true and complement outputs’F398
Y
Guaranteed 4000V minimum ESD protection’F399
Commercial
Military
Package
Package Description
Number
74F398PC
N20A
20-Lead (0300 Wide) Molded Dual-In-Line
54F398DM (Note 2)
J20A
20-Lead Ceramic Dual-In-Line
74F398SC (Note 1)
M20B
20-Lead (0300 Wide) Molded Small Outline JEDEC
54F398FM (Note 2)
W20A
20-Lead Cerpack
54F398LM (Note 2)
E20A
20-Lead Ceramic Leadless Chip Carrier Type C
74F399PC
N20A
20-Lead (0300 Wide) Molded Dual-In-Line
54F399DM (Note 2)
J20A
20-Lead Ceramic Dual-In-Line
74F399SC (Note 1)
M20B
20-Lead (0300 Wide) Molded Small Outline JEDEC
74F399SJ (Note 1)
M20D
20-Lead (0300 Wide) Molded Small Outline EIAJ
54F399FM (Note 2)
W20A
20-Lead Cerpack
54F399LM (Note 2)
E20A
20-Lead Ceramic Leadless Chip Carrier Type C
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
’F398
Pin Assignment
for LCC
TLF9533 – 5
Pin Assignment
for DIP SOIC and Flatpak
TLF9533 – 6
TRI-STATE
is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation
RRD-B30M75Printed in U S A


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