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SN54AHC14, SN74AHC14
HEX SCHMITT-TRIGGER INVERTERS
SCLS238I
–
OCTOBER 1995
–
REVISED JULY 2003
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
FUNCTION TABLE
(each inverter)
INPUT
A
OUTPUT
Y
H
L
L
H
logic diagram (positive logic)
Y
A
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
CC
Input voltage range, V
I
(see Note 1)
Output voltage range, V
O
(see Note 1)
Input clamp current, I
IK
(V
I
< 0)
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
Package thermal impedance,
θ
JA
(see Note 2): D package
–
0.5 V to 7 V
–
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 2): DB package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 2): DGV package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 2): N package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 2): NS package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 2): PW package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 3): RGY package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
NOTES:
1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
3. The package thermal impedance is calculated in accordance with JESD 51-5.
–
0.5 V to V
CC
+ 0.5 V
–
20 mA
±
20 mA
±
25 mA
±
50 mA
86
°
C/W
96
°
C/W
127
°
C/W
80
°
C/W
76
°
C/W
113
°
C/W
47
°
C/W
–
65
°
C to 150
°
C
recommended operating conditions (see Note 4)
SN54AHC14
MIN
SN74AHC14
MIN
UNIT
MAX
MAX
VCC
VI
VO
Supply voltage
2
5.5
2
5.5
V
Input voltage
0
5.5
0
5.5
V
Output voltage
0
VCC
–
50
0
VCC
–
50
V
VCC = 2 V
VCC = 3.3 V
±
0.3 V
VCC = 5 V
±
0.5 V
VCC = 2 V
VCC = 3.3 V
±
0.3 V
VCC = 5 V
±
0.5 V
A
IOH
High-level output current
–
4
–
4
mA
–
8
–
8
50
50
A
IOL
Low-level output current
4
4
mA
8
8
TA
Operating free-air temperature
–
55
125
–
40
85
°
C
NOTE 4: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs
, literature number SCBA004.