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74ACT399SJX(1999) View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
View to exact match
74ACT399SJX
(Rev.:1999)
Fairchild
Fairchild Semiconductor Fairchild
74ACT399SJX Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
June 1988
Revised November 1999
74AC399 • 74ACT399
Quad 2-Port Register
General Description
The AC/ACT399 is the logical equivalent 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-flop on
the rising edge of the clock.
Features
s ICC reduced by 50%
s Select inputs from two data sources
s Fully positive edge-triggered operation
s Outputs source/sink 24 mA
s AC/ACT399 has TTL-compatible inputs
Ordering Code:
Order Number Package Number
Package Description
74AC399SC
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body
74AC399PC
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
74ACT399SC
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body
74ACT399SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACT399PC
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 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
S
CP
I0a–I0d
I1a–I1d
Qa–Qd
Description
Common Select Input
Clock Pulse Input
Data Inputs from Source 0
Data Inputs from Source 1
Register True Outputs
FACTis a trademark of Fairchild Semiconductor Corporation.
© 1999 Fairchild Semiconductor Corporation DS009789
www.fairchildsemi.com
 

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