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SN74AHC245QDWRG4 Folha de dados(PDF) 4 Page - Texas Instruments

Nome de Peças SN74AHC245QDWRG4
Descrição Electrónicos  OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS
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Fabricante Electrônico  TI1 [Texas Instruments]
Página de início  http://www.ti.com
Logo TI1 - Texas Instruments

SN74AHC245QDWRG4 Folha de dados(HTML) 4 Page - Texas Instruments

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SN74AHC245Q
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SGDS018 – FEBRUARY 2002
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
MIN
MAX
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
UNIT
2 V
1.9
2
1.9
IOH = –50 mA
3 V
2.9
3
2.9
VOH
4.5 V
4.4
4.5
4.4
V
IOH = –4 mA
3 V
2.58
2.48
IOH = –8 mA
4.5 V
3.94
3.8
2 V
0.1
0.1
IOL = 50 mA
3 V
0.1
0.1
VOL
4.5 V
0.1
0.1
V
IOL = 4 mA
3 V
0.36
0.5
IOL = 8 mA
4.5 V
0.36
0.5
I
A or B inputs
V
5 5VorGND
5.5 V
±0.1
±1
A
II
OE or DIR
VI = 5.5 V or GND
0 V to 5.5 V
±0.1
±1
mA
IOZ†
VO = VCC or GND,
VI (OE) = VIL or VIH
5.5 V
±0.25
±2.5
mA
ICC
VI = VCC or GND,
IO = 0
5.5 V
4
40
mA
Ci
OE or DIR
VI = VCC or GND
5 V
2.5
10
pF
Cio
A or B inputs
VI = VCC or GND
5 V
4
pF
† The parameter IOZ includes the input leakage current.
switching
characteristics
over
recommended
operating
free-air
temperature
range,
VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
TA = 25°C
MIN
MAX
UNIT
PARAMETER
(INPUT)
(OUTPUT)
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
UNIT
tPLH
AorB
BorA
CL =15 pF
5.8
8.4
1
10
ns
tPHL
A or B
B or A
CL = 15 pF
5.8
8.4
1
10
ns
tPZH
OE
AorB
CL =15 pF
8.5
13.2
1
15.5
ns
tPZL
OE
A or B
CL = 15 pF
8.5
13.2
1
15.5
ns
tPHZ
OE
AorB
CL =15 pF
8.9
12.5
1
15.5
ns
tPLZ
OE
A or B
CL = 15 pF
8.9
12.5
1
15.5
ns
tPLH
AorB
BorA
CL =50 pF
8.3
11.9
1
13.5
ns
tPHL
A or B
B or A
CL = 50 pF
8.3
11.9
1
13.5
ns
tPZH
OE
AorB
CL =50 pF
11
16.7
1
19
ns
tPZL
OE
A or B
CL = 50 pF
11
16.7
1
19
ns
tPHZ
OE
AorB
CL =50 pF
11.5
15.8
1
18
ns
tPLZ
OE
A or B
CL = 50 pF
11.5
15.8
1
18
ns


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