參數(shù)資料
型號(hào)： SNJ54AHCT14FKR
廠商： TEXAS INSTRUMENTS INC
元件分類： 門電路
英文描述： AHCT/VHCT/VT SERIES, HEX 1-INPUT INVERT GATE, CQCC20
封裝： CERAMIC, LCC-20
文件頁(yè)數(shù)： 17/23頁(yè)
文件大小： 1025K
代理商： SNJ54AHCT14FKR
SN54AHCT14, SN74AHCT14
HEX SCHMITT-TRIGGER INVERTERS
SCLS246P OCTOBER 1995 REVISED JULY 2003
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
V
TA = 25°C
SN54AHCT14
SN74AHCT14
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
VT+
Positive going input
4.5 V
0.9
1.9
0.9
1.9
0.9
1.9
V
Positive-going input
threshold voltage
5.5 V
1
2.1
1
2.1
1
2.1
V
VT
Negative going input
4.5 V
0.5
1.5
0.5
1.5
0.5
1.5
V
Negative-going input
threshold voltage
5.5 V
0.6
1.7
0.6
1.7
0.6
1.7
V
ΔVT
Hysteresis
4.5 V
0.4
1.4
0.4
1.4
0.4
1.4
V
Hysteresis
(VT+ VT)
5.5 V
0.4
1.5
0.4
1.5
0.4
1.5
V
IOH = 50 mA
4.5 V
4.4
4.5
4.4
V
VOH
IOH = 8 mA
4.5 V
3.94
3.8
V
IOL = 50 mA
4.5 V
0.1
V
VOL
IOL = 8 mA
4.5 V
0.36
0.44
V
II
VI = 5.5 V or GND
0 V to 5.5 V
±0.1
±1*
±1
mA
ICC
VI = VCC or GND,
IO = 0
5.5 V
2
20
mA
ΔICC
One input at 3.4 V,
Other inputs at VCC or GND
5.5 V
1.35
1.5
mA
Ci
VI = VCC or GND
5 V
2
10
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
VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
TA = 25°C
SN54AHCT14
SN74AHCT14
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
A
Y
C
15 pF
4**
7**
1**
8**
1
8
ns
tPHL
A
Y
CL = 15 pF
4**
7**
1**
8**
1
8
ns
tPLH
A
Y
C =50pF
5.5
8
1
9
1
9
ns
tPHL
A
Y
CL = 50 pF
5.5
8
1
9
1
9
ns
** On products compliant to MIL-PRF-38535, this parameter is not production tested.
noise characteristics, VCC = 5 V, CL = 50 pF, TA = 25°C (see Note 5)
PARAMETER
SN74AHCT14
UNIT
PARAMETER
MIN
TYP
MAX
UNIT
VOL(P)
Quiet output, maximum dynamic VOL
0.9
V
VOL(V)
Quiet output, minimum dynamic VOL
0.7
V
VOH(V)
Quiet output, minimum dynamic VOH
4.3
V
VIH(D)
High-level dynamic input voltage
2.1
V
VIL(D)
Low-level dynamic input voltage
0.5
V
NOTE 5: Characteristics are for surface-mount packages only.
operating characteristics, VCC = 5 V, TA = 25°C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance
No load,
f = 1 MHz
12
pF
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