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SN74HC245PWE4 Scheda tecnica(PDF) 3 Page - Texas Instruments

Il numero della parte SN74HC245PWE4
Spiegazioni elettronici  OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
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Produttore elettronici  TI [Texas Instruments]
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SN74HC245PWE4 Scheda tecnica(HTML) 3 Page - Texas Instruments

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SN54HC245, SN74HC245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS131D – DECEMBER 1982 – REVISED AUGUST 2003
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54HC245
SN74HC245
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
2
5
6
2
5
6
V
V
High-level input voltage
VCC = 2 V
1.5
1.5
V
VIH
High-level input voltage
VCC = 4.5 V
3.15
3.15
V
IH
VCC = 6 V
4.2
4.2
V
Low-level input voltage
VCC = 2 V
0.5
0.5
V
VIL
Low-level input voltage
VCC = 4.5 V
1.35
1.35
V
IL
VCC = 6 V
1.8
1.8
VI
Input voltage
0
VCC
0
VCC
V
VO
Output voltage
0
VCC
0
VCC
V
t/ v
Input transition rise/fall time
VCC = 2 V
1000
1000
ns
∆t/∆v
Input transition rise/fall time
VCC = 4.5 V
500
500
ns
VCC = 6 V
400
400
TA
Operating free-air temperature
–55
125
–40
85
°C
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
SN54HC245
SN74HC245
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
V
V = V
or V
I
= –20 A
2 V
1.9
1.998
1.9
1.9
V
V
V = V
or V
IOH = –20 µA
4.5 V
4.4
4.499
4.4
4.4
V
VOH
VI = VIH or VIL
OH
6 V
5.9
5.999
5.9
5.9
V
OH
IIH
IL
IOH = –6 mA
4.5 V
3.98
4.3
3.7
3.84
IOH = –7.8 mA
6 V
5.48
5.8
5.2
5.34
V
V = V
or V
I
= 20 A
2 V
0.002
0.1
0.1
0.1
V
V
V = V
or V
IOL = 20 µA
4.5 V
0.001
0.1
0.1
0.1
V
VOL
VI = VIH or VIL
OL
6 V
0.001
0.1
0.1
0.1
V
OL
IIH
IL
IOL = 6 mA
4.5 V
0.17
0.26
0.4
0.33
IOL = 7.8 mA
6 V
0.15
0.26
0.4
0.33
II
DIR or OE
VI = VCC or 0
6 V
±0.1
±100
±1000
±1000
nA
IOZ
A or B
VO = VCC or 0
6 V
±0.01
±0.5
±10
±5
µA
ICC
VI = VCC or 0,
IO = 0
6 V
8
160
80
µA
Ci
DIR or OE
2 V to 6 V
3
10
10
10
pF


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