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SN74273N Datasheet(Fiches technique) 4 Page - Texas Instruments

Numéro de pièce SN74273N
Description  OCTAL D-TYPE FLIP-FLOP WITH CLEAR
Télécharger  6 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

SN74273N Datasheet(HTML) 4 Page - Texas Instruments

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SN54273, SN54LS273, SN74273, SN74LS273
OCTAL D-TYPE FLIP-FLOP WITH CLEAR
SDLS090 ? OCTOBER 1976 ? REVISED MARCH 1988
4
POST OFFICE BOX 655303
? DALLAS, TEXAS 75265
switching characteristics, VCC = 5 V, TA = 25C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
fmax
Maximum clock frequency
C
30
40
MHz
tPHL
Propagation delay time, high-to-low-level output from clear
CL = 15 pF,
RL = 400 ?
18
27
ns
tPLH
Propagation delay time, low-to-high-level output from clock
RL = 400 ?,
See Note 3
17
27
ns
tPHL
Propagation delay time, high-to-low-level output from clock
See Note 3
18
27
ns
NOTE 3: Load circuits and voltage waveforms are shown in Section 1.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC (see Note 1)
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage
7 V
. . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA: SN54LS273
? 55
C to 125C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74LS273
0
C to 70C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range
? 65
C to 150C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NOTE 1: Voltage values are with respect to network ground terminal.
recommended operating conditions
SN54LS273
SN74LS273
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
Supply voltage, VCC
4.5
5
5.5
4.75
5
5.25
V
High-level output current, IOH
? 400
? 400
A
Low-level output current, IOL
4
8
mA
Clock frequency, fclock
0
30
0
30
MHz
Width of clock or clear pulse, tw
20
20
ns
Setup time t
Data input
20
?
20
?
ns
Setup time, tsu
Clear inactive state
25
?
25
?
ns
Data hold time, th
5
?
5
?
ns
Operating free-air temperature, TA
?55
125
0
70
C
? The arrow indicates that the rising edge of the clock pulse is used for reference.


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