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參數(shù)資料
| 型號(hào)： | SN54AHCT27 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Triple 3-Input Positive-NOR Gates(三3輸入正或非門(mén)) |
| 中文描述： | 三3輸入正和或非門(mén)（三3輸入正或非門(mén)） |
| 文件頁(yè)數(shù)： | 3/5頁(yè) |
| 文件大?。?/td> | 104K |
| 代理商： | SN54AHCT27 |
SN54AHCT27, SN74AHCT27
TRIPLE 3-INPUT POSITIVE-NOR GATES
SCLS364 – 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
SN54AHCT27
MIN
4.4
SN74AHCT27
MIN
4.4
UNIT
MIN
4.4
MAX
MAX
MAX
VOH
IOH = –50 A
IOH = –8 mA
IOL = 50 A
IOL = 8 mA
VI = VCC or GND
VI = VCC or GND,
One input at 3.4 V,
Other inputs at VCC or GND
VI = 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
0.44
±
1
20
0.44
±
1
20
II
ICC
5.5 V
A
IO = 0
5.5 V
2
A
ICC
5.5 V
1.35
1.5
1.5
mA
Ci
5 V
2
10
10
pF
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
SN54AHCT27
TA = 25
°
C
TYP
4.1
UNIT
(OUTPUT)
CAPACITANCE
MIN
MAX
MIN
MAX
5.9
tPLH
tPHL
tPLH
tPHL
A B or C
A, B, or C
Y
CL= 15 pF
CL = 15 pF
1
7
ns
4.1
5.9
1
7
A B or C
A, B, or C
Y
CL= 50 pF
CL = 50 pF
5.6
5.6
7.9
7.9
1
1
9
9
ns
* On products compliant to MIL-PRF-38535, this parameter is ensured but not production tested.
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
SN74AHCT27
TA = 25
°
C
TYP
4.1
UNIT
(OUTPUT)
CAPACITANCE
MIN
MAX
MIN
MAX
5.9
tPLH
tPHL
tPLH
tPHL
A B or C
A, B, or C
Y
CL= 15 pF
CL = 15 pF
1
7
ns
4.1
5.9
1
7
A B or C
A, B, or C
Y
CL= 50 pF
CL = 50 pF
5.6
5.6
7.9
7.9
1
1
9
9
ns
noise characteristics, V
CC
= 5 V, C
L
= 50 pF, T
A
= 25
°
C (see Note 4)
PARAMETER
SN74AHCT27
MIN
TYP
UNIT
MAX
VOL(P)
VOL(V)
VOH(V)
VIH(D)
VIL(D)
NOTE 4: Characteristics are determined during product characterization and ensured by design 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
V
2
V
Low-level dynamic input voltage
0.8
V
P
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