Details, datasheet, quote on part number: 74F398SCX
TitleBipolar->F Family
DescriptionQuad 2-Port Register
CompanyFairchild Semiconductor
DatasheetDownload 74F398SCX datasheet
Find where to buy


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.


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
Some Part number from the same manufacture Fairchild Semiconductor
74F399 Quad 2-Port Register
74F401 CRC Generator/checker
74F402 Serial Data Polynomial Generator/checker
74F403A First-in First-out (FIFO) Buffer Memory
74F413 64 X 4 First-in First-out Buffer Memory With Parallel I/o
74F433 First-in First-out (FIFO) Buffer Memory
74F51 Dual 2-Wide 2-Input; 2-Wide 3-Input And-or-invert Gate
74F521 8-Bit Identity Comparator
74F524 8-Bit Registered Comparator
74F533 Octal Transparent Latch With 3-STATE Outputs
74F534 Octal D-type Flip-flop With 3-STATE Outputs
74F537 1-of-10 Decoder With 3-STATE Outputs
74F538 1-of-8 Decoder With 3-STATE Outputs
74F539 Dual 1-of-4 Decoder With 3-STATE Outputs
74F540 Octal Buffer/line Driver With 3-STATE Outputs (Inverting)
74F541 Octal Buffer/line Driver With 3-STATE Outputs
74F543 Octal Registered Transceiver
74F545 Octal Bidirectional Transceiver With 3-STATE Inputs/outputs
74F552 Octal Registered Transceiver With Parity And Flags
74F563 Octal D-type Latch With 3-STATE Outputs

FM1233DFS3X : 4.62V, Active Low Precision Reset Generator Circuit

FOD817SD : 4-Pin Dip Phototransistor Output Optocoupler

FQA6N90C : FQA6N90C - 900V N-channel Advanced QFET C-series

HMHAA280_06 : Half Pitch Mini-flat Package 4-pin Optocouplers

RB520S-40 : Schottky Barrier Diodes

NM24C16UFLZM8 : 16k-bit Serial Eeprom 2-wire Bus Interface

DM74AS02N : Logic - Gate And Inverter Integrated Circuit (ics) NOR Gate Tube - -; IC QUAD 2-INPUT NOR GATE 14DIP Specifications: Number of Circuits: 4 ; Package / Case: 14-DIP (0.300", 7.62mm) ; Logic Type: NOR Gate ; Packaging: Tube ; Mounting Type: Through Hole ; Number of Inputs: 2 ; Current - Output High, Low: - ; Operating Temperature: -40C ~ 85C ; Voltage - Supply: - ; Lead Free Status: Contains Lead ;

LM78T12CT : Pmic - Voltage Regulator - Linear (ldo) Integrated Circuit (ics); IC REG POS 3A 12V TO-220 Specifications: Lead Free Status: Lead Free ; RoHS Status: RoHS Compliant

KSH112TF : Transistor (bjt) - Single Discrete Semiconductor Product 2A 100V 1.75W NPN - Darlington; TRANSISTOR NPN 100V 2A DPAK Specifications: Transistor Type: NPN - Darlington ; Voltage - Collector Emitter Breakdown (Max): 100V ; Current - Collector (Ic) (Max): 2A ; Power - Max: 1.75W ; DC Current Gain (hFE) (Min) @ Ic, Vce: 1000 @ 2A, 3V ; Vce Saturation (Max) @ Ib, Ic: 3V @ 40mA, 4A ; Frequency - Transition: 25MHz ; Curr

FDMS5352 : MOSFET N-CH 60V 13.6A POWER56 Fairchild Semiconductor PowerTrench® MOSFET technology enables high power density for high-efficiency solutions providing the lowest RDS(ON) available, improved FOM and lower power dissipation. Features Superior switching performance and low switching noise Lower switch node

0-C     D-L     M-R     S-Z