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參數(shù)資料
| 型號： | SN54HCT126 |
| 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)： | 2/5頁 |
| 文件大?。?/td> | 92K |
| 代理商： | SN54HCT126 |
SN54HCT126, SN74HCT126
QUADRUPLE BUS BUFFER GATES
WITH 3-STATE OUTPUTS
SCLS070A – NOVEMBER 1988 – REVISED NOVEMBER 1990
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range
Supply voltage range, V
CC
Input clamp current, I
IK
(V
I
< 0 or V
I
> V
CC
)
Output clamp current, I
OK
(V
O
< 0 or V
O
> V
CC
)
Continuous output current, I
O
(V
O
= 0 to V
CC
)
Continuous current through V
CC
or GND pins
Lead temperature 1,6 mm (1/16 in) from case for 60 s: FK or J package
Lead temperature 1,6 mm (1/16 in) from case for 10 s: DW or N package
Storage temperature range
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–0.5 V to 7 V
±
20 mA
±
20 mA
±
35 mA
±
70 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
300
°
C
260
°
C
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
–65
°
C to 150
°
C
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
SN54HCT126
MIN
NOM
SN74HCT126
MIN
NOM
UNIT
MAX
MAX
VCC
VIH
VIL
VI
VO
tt
TA
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
High-level input voltage
VCC = 4.5 V to 5.5 V
VCC = 4.5 V to 5.5 V
2
2
V
Low-level input voltage
0
0.8
0
0.8
V
Input voltage
0
VCC
VCC
500
0
VCC
VCC
500
V
Output voltage
0
0
V
Input transition (rise and fall) time
0
0
ns
°
C
Operating free-air temperature
–55
125
–40
85
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25
°
C
TYP
4.499
SN54HCT126
MIN
4.4
SN74HCT126
MIN
4.4
UNIT
MIN
4.4
MAX
MAX
MAX
VOH
VI = VIH or VIL, IOH = –20
μ
A
VI = VIH or VIL, IOH = –6 mA
VI = VIH or VIL, IOL = 20
μ
A
VI = VIH or VIL, IOL = 6 mA
VI = VCC or 0
VO = VCC or 0, VI = VIH or VIL
VI = VCC or 0, IO = 0
One input at 0.5 V or 2.4 V,
Other inputs at 0 or VCC
4 5 V
4.5 V
V
3.98
4.3
3.7
3.84
VOL
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
5.5 V
±
1000
±
10
160
nA
μ
A
μ
A
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-STD-883C, Class B, 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.
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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