74F398 Datasheet PDF - Fairchild
Part Number | 74F398 | |
Description | Quad 2-Port Register | |
Manufacturers | Fairchild | |
Logo | ||
There is a preview and 74F398 download ( pdf file ) link at the bottom of this page. Total 8 Pages |
Preview 1 page No Preview Available ! April 1988
Revised August 1999
74F398 • 74F399
Quad 2-Port Register
General Description
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
Ordering Code:
Order Number Package Number
Package Description
74F398SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body
74F398PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
74F399SC
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body
74F399SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F399PC
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.
Connection Diagrams
74F398
74F399
© 1999 Fairchild Semiconductor Corporation DS009533
www.fairchildsemi.com
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AC Electrical Characteristics
Symbol
Parameter
fMAX
tPLH
Input Clock Frequency
Propagation Delay
tPHL CP to Q or Q
Note 4: 74F398 3.3 ns
AC Operating Requirements
Symbol
Parameter
tS(H)
tS(L)
tH(H)
tH(L)
tS(H)
tS(L)
tS(H)
tS(L)
tH(H)
tH(L)
tW(H)
tW(L)
Setup Time, HIGH or LOW
In to CP
Hold Time, HIGH or LOW
In to CP
Setup Time, HIGH or LOW
S to CP (F398)
Setup Time, HIGH or LOW
S to CP (F399)
Hold Time, HIGH or LOW
S to CP
CP Pulse Width
HIGH or LOW
TA = +25°C
VCC = +5.0V
CL = 50 pF
Min Typ
100 140
3.0
(Note 4)
5.7
3.0 6.8
Max
7.5
9.0
TA = 0°C to +70°C
VCC = +5.0V
CL = 50 pF
Min Max
100
3.0 8.5
3.0 10.0
Units
MHz
ns
TA = +25°C
VCC = +5.0V
Min Max
3.0
3.0
1.0
1.0
7.5
7.5
7.5
7.5
0
0
4.0
5.0
TA = 0°C to +70°C
VCC = +5.0V
Min Max
3.0
3.0
1.0
1.0
8.5
8.5
8.5
8.5
0
0
4.0
5.0
Units
ns
ns
ns
5 www.fairchildsemi.com
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for 74F398 electronic component. |
Information | Total 8 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Download | [ 74F398.PDF Datasheet ] |
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