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SN74LS273NE4 Datasheet(PDF) 3 Page - Texas Instruments

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Part # SN74LS273NE4
Description  OCTAL D-TYPE FLIP-FLOP WITH CLEAR
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

SN74LS273NE4 Datasheet(HTML) 3 Page - Texas Instruments

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SN54273, SN54LS273, SN74273, SN74LS273
OCTAL D-TYPE FLIP-FLOP WITH CLEAR
SDLS090 – OCTOBER 1976 – REVISED MARCH 1988
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC (see Note 1)
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage
5.5 V
. . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA: SN54273
– 55
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74273
0
°C to 70°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range
– 65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NOTE 1: Voltage values are with respect to network ground terminal.
recommended operating conditions
SN54273
SN74273
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
– 800
– 800
µA
Low-level output current, IOL
16
16
mA
Clock frequency, fclock
0
30
0
30
MHz
Width of clock or clear pulse, tw
16.5
16.5
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.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS†
MIN
TYP‡
MAX
UNIT
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
VIK
Input clamp voltage
VCC = MIN,
II = – 12 mA
–1.5
V
VOH
High-level output voltage
VCC = MIN,
VIL = 0.8 V,
VIH = 2 V,
IOH = – 800 µA
2.4
3.4
V
VOL
Low-level output voltage
VCC = MIN,
VIL = 0.8 V,
VIH = 2 V,
IOH = 16 mA
0.4
V
II
Input current at maximum input voltage
VCC = MAX,
VI = 5.5 V
1
mA
IIH
High level input current
Clear
VCC = MAX
VI =2 4V
80
µA
IIH
High-level input current
Clock or D
VCC = MAX,
VI = 2.4 V
40
µA
IIL
Low level input current
Clear
VCC = MAX
VI =0 4V
– 3.2
mA
IIL
Low-level input current
Clock or D
VCC = MAX,
VI = 0.4 V
– 1.6
mA
IOS
Short-circuit output current§
VCC = MAX
–18
–57
mA
ICC
Supply current
VCC = MAX,
See Note 2
62
94
mA
† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
‡ All typical values are at VCC = 5 V, TA = 25°C.
§ Not more than one output should be shorted at a time.
NOTE 2: With all outputs open and 4.5 V applied to all data and clear inputs, ICC is measured after a momentary ground, then 4.5 V, is applied
to clock.


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