參數(shù)資料
型號： SN74LV245ARGYRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 總線收發(fā)器
英文描述： LV/LV-A/LVX/H SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PQCC20
封裝： GREEN, PLASTIC, MO-241BC, QFN-20
文件頁數(shù)： 21/25頁
文件大小： 892K
代理商： SN74LV245ARGYRG4
SN54LV245A, SN74LV245A
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS382N
SEPTEMBER 1997
REVISED AUGUST 2010
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
V
SN54LV245A
SN74LV245A
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
IOH = 50 μA
2 V to 5.5 V
VCC 0.1
V
IOH = 2 mA
2.3 V
2
V
VOH
IOH = 8 mA
3 V
2.48
V
IOH = 16 mA
4.5 V
3.8
IOL = 50 μA
2 V to 5.5 V
0.1
V
IOL = 2 mA
2.3 V
0.4
V
VOL
IOL = 8 mA
3 V
0.44
V
IOL = 16 mA
4.5 V
0.55
II
Control inputs
VI = 5.5 V or GND
0 to 5.5 V
±1
μA
IOZ
A or B port
VO = VCC or GND
5.5 V
±5
μA
ICC
VI = VCC or GND,
IO = 0
5.5 V
20
μA
Ioff
VI or VO = 0 to 5.5 V
0
5
μA
C
Control inputs
V
or GND
3.3 V
3
pF
Ci
Control inputs
VI = VCC or GND
5 V
3
pF
C
A or B port
VO =VCC or GND
3.3 V
5.5
pF
Cio
A or B port
VO = VCC or GND
5 V
5.5
pF
switching
characteristics
over
recommended
operating
free-air
temperature
range,
VCC = 2.5 V ± 0.2 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
TA = 25°C
SN54LV245A
SN74LV245A
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tpd
A or B
B or A
8.3*
13*
1*
15*
1
15
ten
OE
A or B
CL = 15 pF
11.8*
19.9*
1*
22*
1
22
ns
tdis
OE
A or B
CL
15 pF
11.8*
18.1*
1*
20*
1
20
ns
tpd
A or B
B or A
11.2
15.9
1
18
1
18
ten
OE
A or B
C50 pF
14.1
22.7
1
26
1
26
ns
tdis
OE
A or B
CL = 50 pF
17.6
23.1
1
25
1
25
ns
tsk(o)
2
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
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
SN54LV245A
SN74LV245A
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tpd
A or B
B or A
5.9*
8.4*
1*
10*
1
10
ten
OE
A or B
CL = 15 pF
8.2*
13.2*
1*
15.5*
1
15.5
ns
tdis
OE
A or B
CL
15 pF
9.6*
16.5*
1*
19.5*
1
19.5
ns
tpd
A or B
B or A
7.9
11.9
1
13.5
1
13.5
ten
OE
A or B
C50 pF
9.9
16.7
1
19
1
19
ns
tdis
OE
A or B
CL = 50 pF
13.9
19.8
1
22
1
22
ns
tsk(o)
1.5
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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