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參數(shù)資料
| 型號： | SN54AHCT125J |
| 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)： | 4/18頁 |
| 文件大?。?/td> | 636K |
| 代理商： | SN54AHCT125J |
SN54AHCT125, SN74AHCT125
QUADRUPLE BUS BUFFER GATES
WITH 3-STATE OUTPUTS
SCLS264O
–
DECEMBER 1995
–
REVISED JULY 2003
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
TYP
SN54AHCT125
MIN
4.4
SN74AHCT125
MIN
4.4
UNIT
MIN
4.4
MAX
MAX
MAX
VOH
IOH =
–
50 A
IOH =
–
8 mA
IOL = 50 A
IOL = 8 mA
VI = 5.5 V or GND
VO = VCC or GND
VI = VCC or GND,
One input at 3.4 V,
Other inputs at VCC or GND
VI = VCC or GND
VO = VCC or GND
4 5 V
4.5 V
4.5
V
3.94
3.8
3.8
VOL
4 5 V
4.5 V
0.1
0.1
0.1
V
0.36
±
0.1
±
0.25
0.44
±
1*
±
2.5
20
0.44
±
1
±
2.5
20
II
IOZ
ICC
0 V to 5.5 V
A
5.5 V
A
IO = 0
5.5 V
2
A
ICC
5.5 V
1.35
1.5
1.5
mA
Ci
Co
5 V
4
10
10
pF
5 V
15
pF
* On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.
This is the increase in supply current for each input at one of the specified TTL voltage levels, rather than 0 V or VCC.
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V
±
0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
LOAD
TA = 25
°
C
TYP
3.8**
SN54AHCT125
MIN
1**
SN74AHCT125
MIN
1
UNIT
(OUTPUT)
CAPACITANCE
MIN
MAX
5.5**
MAX
6.5**
MAX
6.5
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tsk(o)
A
Y
CL= 15 pF
CL = 15 pF
ns
3.8**
5.5**
1**
6.5**
1
6.5
OE
Y
CL= 15 pF
CL = 15 pF
3.6**
5.1**
1**
6**
1
6
ns
3.6**
5.1**
1**
6**
1
6
OE
Y
CL= 15 pF
CL = 15 pF
4.6**
4.6**
6.8**
6.8**
1**
1**
8**
8**
1
1
8
8
ns
A
Y
CL= 50 pF
CL = 50 pF
5.3
7.5
1
8.5
1
8.5
ns
5.3
7.5
1
8.5
1
8.5
OE
Y
CL= 50 pF
CL = 50 pF
5.1
7.1
1
8
1
8
ns
5.1
7.1
1
8
1
8
OE
Y
CL= 50 pF
6.1
6.1
8.8
8.8
1
1
10
10
1
1
10
10
ns
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.
noise characteristics, V
CC
= 5 V, C
L
= 50 pF, T
A
= 25
°
C (see Note 5)
PARAMETER
SN74AHCT125
UNIT
MIN
MAX
VOL(P)
VOL(V)
VOH(V)
VIH(D)
VIL(D)
NOTE 5: Characteristics are for surface-mount packages only.
Quiet output, maximum dynamic VOL
Quiet output, minimum dynamic VOL
Quiet output, minimum dynamic VOH
High-level dynamic input voltage
0.8
V
–
0.8
V
4.4
V
2
V
Low-level dynamic input voltage
0.8
V
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