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Details, datasheet, quote on part number: 74F399SJ
 
 
Part number74F399SJ
Category
TitleBipolar->F Family
DescriptionQuad 2-Port Register
CompanyFairchild Semiconductor
DatasheetDownload 74F399SJ datasheet
Request For QuoteFind where to buy 74F399SJ
 


 
Specifications, Features, Applications

The 74F398 and 74F399 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 74F399 is the 16-pin version of the 74F398, with only the Q outputs of the flip-flops available.

Features

s Select inputs from two data sources s Fully positive edge-triggered operation s Both true and complement outputs--74F398

Order Number 74F399SJ 74F399PC Package Number M16D N16E Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 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.

U.L. Pin Names I0aI0d I1aI1d QaQd Description HIGH/LOW Common Select Input Clock Pulse Input (Active Rising Edge) Data Inputs from Source 0 Data Inputs from Source 1 Register True Outputs Register Complementary Outputs (74F398) Input IIH/IIL Output IOH/IOL A/-0.6 mA

The 74F398 and 74F399 are high-speed quad 2-port registers. They select four bits of data from either of two sources (Ports) under control of a common Select input (S). The selected data is transferred a 4-bit output register synchronous with the LOW-to-HIGH transition of the Clock input (CP). The 4-bit D-type output register is fully edgetriggered. The Data inputs (I0x, I1x) and Select input (S) must be stable only a setup time prior to and hold time after the LOW-to-HIGH transition of the Clock input for predictable operation. The 74F398 has both Q and Q outputs.

H = HIGH Voltage Level L = LOW Voltage Level h = HIGH Voltage Level one setup time prior to the LOW-to-HIGH clock transition I = LOW Voltage Level one setup time prior to the LOW-to-HIGH clock transition X = Immaterial Note 1: 74F398 only

*F398 Only Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.




Related products with the same datasheet
74F399PC   74F399SC   74F399SCX   74F399SJX  


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