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參數(shù)資料
| 型號： | SN54HCT125FK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | QUADRUPLE BUS BUFFER GATES WITH 3-STATE OUTPUTS |
| 中文描述： | 翻兩番總線緩沖器門，三態(tài)輸出 |
| 文件頁數(shù)： | 3/5頁 |
| 文件大小： | 95K |
| 代理商： | SN54HCT125FK |
SN54HCT125, SN74HCT125
QUADRUPLE BUS BUFFER GATES
WITH 3-STATE OUTPUTS
SCLS069C – NOVEMBER 1988 – REVISED MAY 1997
3
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
TYP
4.499
SN54HCT125
MIN
4.4
SN74HCT125
MIN
4.4
UNIT
MIN
4.4
MAX
MAX
MAX
VOH
VI= VIHor VIL
VI = VIH or VIL
IOH = –20
μ
A
IOH = –6 mA
IOL = 20
μ
A
IOL = 6 mA
4 5 V
4.5 V
V
3.98
4.3
3.7
3.84
VOL
VI= VIHor VIL
VI = VIH or VIL
4 5 V
4.5 V
0.001
0.1
0.1
0.1
V
0.17
±
0.1
±
0.01
0.26
±
100
±
0.5
0.4
0.33
±
1000
II
IOZ
ICC
VI = VCC or 0
VO = VCC or 0,
VI = VCC or 0,
One input at 0.5 V or 2.4 V,
Other inputs at 0 or VCC
5.5 V
±
1000
±
10
160
nA
μ
A
μ
A
VI = VIH or VIL
IO = 0
5.5 V
±
5
80
5.5 V
8
ICC
5.5 V
1.4
2.4
3
2.9
mA
Ci
4.5 V
to 5.5 V
3
10
10*
10
pF
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or VCC.
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
VCC
TA = 25
°
C
TYP
SN54HCT125
MIN
SN74HCT125
MIN
UNIT
(OUTPUT)
MIN
MAX
MAX
MAX
td
tpd
A
Y
4.5 V
15
26
39
33
ns
5.5 V
12
23
35
30
ten
OE
Y
4.5 V
18
28
42
35
ns
5.5 V
15
25
38
31
tdis
OE
Y
4.5 V
15
26
39
33
ns
5.5 V
13
23
35
30
tt
Any
4.5 V
5.5 V
8
7
15
14
22
21
19
17
ns
switching characteristics over recommended operating free-air temperature range, C
L
= 150 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
VCC
TA = 25
°
C
TYP
SN54HCT125
MIN
SN74HCT125
MIN
UNIT
(OUTPUT)
MIN
MAX
MAX
MAX
td
tpd
A
Y
4.5 V
19
36
58
46
ns
5.5 V
16
32
48
42
ten
OE
Y
4.5 V
25
40
60
50
ns
5.5 V
21
35
53
43
tt
Any
4.5 V
5.5 V
17
14
42
38
63
57
53
48
ns
operating characteristics, T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance
No load
35
pF
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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