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SN74AHC245PWRE4 数据表(PDF) 4 Page - Texas Instruments

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部件名 SN74AHC245PWRE4
功能描述  OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
Download  18 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

SN74AHC245PWRE4 数据表(HTML) 4 Page - Texas Instruments

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SN54AHC245, SN74AHC245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS230I – OCTOBER 1995 – REVISED JULY 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
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
SN54AHC245
SN74AHC245
UNIT
PARAMETER
(INPUT)
(OUTPUT)
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
AorB
BorA
CL =15 pF
5.8**
8.4**
1**
10**
1
10
ns
tPHL
A or B
B or A
CL = 15 pF
5.8**
8.4**
1**
10**
1
10
ns
tPZH
OE
AorB
CL =15 pF
8.5**
13.2**
1**
15.5**
1
15.5
ns
tPZL
OE
A or B
CL = 15 pF
8.5**
13.2**
1**
15.5**
1
15.5
ns
tPHZ
OE
AorB
CL =15 pF
8.9**
12.5**
1**
15.5**
1
15.5
ns
tPLZ
OE
A or B
CL = 15 pF
8.9**
12.5**
1**
15.5**
1
15.5
ns
tPLH
AorB
BorA
CL =50 pF
8.3
11.9
1
13.5
1
13.5
ns
tPHL
A or B
B or A
CL = 50 pF
8.3
11.9
1
13.5
1
13.5
ns
tPZH
OE
AorB
CL =50 pF
11
16.7
1
19
1
19
ns
tPZL
OE
A or B
CL = 50 pF
11
16.7
1
19
1
19
ns
tPHZ
OE
AorB
CL =50 pF
11.5
15.8
1
18
1
18
ns
tPLZ
OE
A or B
CL = 50 pF
11.5
15.8
1
18
1
18
ns
tsk(o)
CL = 50 pF
1.5***
1.5
ns
** On products compliant to MIL-PRF-38535, this parameter is not production tested.
*** On products compliant to MIL-PRF-38535, this parameter does not apply.
switching
characteristics
over
recommended
operating
free-air
temperature
range,
VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
TA = 25°C
SN54AHC245
SN74AHC245
UNIT
PARAMETER
(INPUT)
(OUTPUT)
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
AorB
BorA
CL =15 pF
4*
5.5*
1*
6.5*
1
6.5
ns
tPHL
A or B
B or A
CL = 15 pF
4*
5.5*
1*
6.5*
1
6.5
ns
tPZH
OE
AorB
CL =15 pF
5.8*
8.5*
1*
10*
1
10
ns
tPZL
OE
A or B
CL = 15 pF
5.8*
8.5*
1*
10*
1
10
ns
tPHZ
OE
AorB
CL =15 pF
5.6*
7.8*
1*
9.2*
1
9.2
ns
tPLZ
OE
A or B
CL = 15 pF
5.6*
7.8*
1*
9.2*
1
9.2
ns
tPLH
AorB
BorA
CL =50 pF
5.5
7.5
1
8.5
1
8.5
ns
tPHL
A or B
B or A
CL = 50 pF
5.5
7.5
1
8.5
1
8.5
ns
tPZH
OE
AorB
CL =50 pF
7.3
10.6
1
12
1
12
ns
tPZL
OE
A or B
CL = 50 pF
7.3
10.6
1
12
1
12
ns
tPHZ
OE
AorB
CL =50 pF
7
9.7
1
11
1
11
ns
tPLZ
OE
A or B
CL = 50 pF
7
9.7
1
11
1
11
ns
tsk(o)
CL = 50 pF
1**
1
ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
** On products compliant to MIL-PRF-38535, this parameter does not apply.


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