Texas Instruments SN74HC14ADBR, SN74HC14APWR, SN74HC14D, SN74HC14DR, SN74HC14N Datasheet
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SN54HC14, SN74HC14
HEX SCHMITT-TRIGGER INVERTERS
SCLS085B – DECEMBER 1982 – REVISED MA Y 1997
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D
Package Options Include Plastic
Small-Outline (D), Thin Shrink
Small-Outline (PW), and Ceramic Flat (W)
Packages, Ceramic Chip Carriers (FK), and
Standard Plastic (N) and Ceramic (J)
300-mil DIPs
description
These Schmitt-trigger devices contain six
independent inverters. They perform the Boolean
function Y = A in positive logic.
The SN54HC14 is characterized for operation
over the full military temperature range of –55°C
to 125°C. The SN74HC14 is characterized for
operation from –40°C to 85°C.
FUNCTION TABLE
(each inverter)
INPUTAOUTPUT
Y
H L
L H
logic symbol
†
1
1A
3
2A
1Y
2
5
3A
9
4A
2Y
4
11
5A
13
6A
3Y
6
4Y
8
5Y
10
6Y
12
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
Pin numbers shown are for the D, J, N, PW, and W packages.
logic diagram (positive logic)
AY
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1A
1Y
2A
2Y
3A
3Y
GND
V
CC
6A
6Y
5A
5Y
4A
4Y
SN54HC14 . . . J OR W PACKAGE
SN74HC14 . . . D, N, OR PW PACKAGE
(TOP VIEW)
3212019
910111213
4
5
6
7
8
18
17
16
15
14
6Y
NC
5A
NC
5Y
2A
NC
2Y
NC
3A
1Y1ANC
4Y
4A
V
6A
3Y
GND
NC
SN54HC14 . . . FK PACKAGE
(TOP VIEW)
CC
NC – No internal connection
Copyright 1997, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
SN54HC14, SN74HC14
HEX SCHMITT-TRIGGER INVERTERS
SCLS085B – DECEMBER 1982 – REVISED MA Y 1997
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range
†
Supply voltage range, V
CC
–0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0 or VI > VCC) (see Note 1) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0 or VO > VCC) (see Note 1) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, IO (VO = 0 to VCC) ±25 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through VCC or GND ±50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θ
JA
(see Note 2): D package 127°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package 78°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package 170°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–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.
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, except for through-hole packages, which use a trace
length of zero.
recommended operating conditions
SN54HC14 SN74HC14
MIN NOM MAX MIN NOM MAX
UNIT
V
CC
Supply voltage 2 5 6 2 5 6 V
VCC = 2 V 1.5 1.5
V
IH
High-level input voltage
VCC = 4.5 V
3.15 3.15
V
VCC = 6 V 4.2 4.2
VCC = 2 V 0 0.5 0 0.5
V
IL
Low-level input voltage
VCC = 4.5 V
0 1.35 0 1.35
V
VCC = 6 V 0 1.8 0 1.8
V
I
Input voltage 0 V
CC
0 V
CC
V
V
O
Output voltage 0 V
CC
0 V
CC
V
T
A
Operating free-air temperature –55 125 –40 85 °C
SN54HC14, SN74HC14
HEX SCHMITT-TRIGGER INVERTERS
SCLS085B – DECEMBER 1982 – REVISED MA Y 1997
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
TA = 25°C SN54HC14 SN74HC14
PARAMETER
TEST CONDITIONS
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
2 V 1.9 1.998 1.9 1.9
IOH = –20 µA
4.5 V 4.4 4.499 4.4 4.4
V
OH
VI = VIH or V
IL
6 V 5.9 5.999 5.9 5.9
V
IOH = –4 mA 4.5 V 3.98 4.3 3.7 3.84
IOH = –5.2 mA 6 V 5.48 5.8 5.2 5.34
2 V 0.002 0.1 0.1 0.1
IOL = 20 µA
4.5 V 0.001 0.1 0.1 0.1
V
OL
VI = VIH or V
IL
6 V 0.001 0.1 0.1 0.1
V
IOL = 4 mA 4.5 V 0.17 0.26 0.4 0.33
IOL = 5.2 mA 6 V 0.15 0.26 0.4 0.33
2 V 0.7 1.2 1.5 0.7 1.5 0.7 1.5
V
T+
4.5 V 1.55 2.5 3.15 1.55 3.15 1.55 3.15
V
6 V 2.1 3.3 4.2 2.1 4.2 2.1 4.2
2 V 0.3 0.6 1 0.3 1 0.3 1
V
T–
4.5 V 0.9 1.6 2.45 0.9 2.45 0.9 2.45
V
6 V 1.2 2 3.2 1.2 3.2 1.2 3.2
2 V 0.2 0.6 1.2 0.2 1.2 0.2 1.2
VT+ – V
T–
4.5 V 0.4 0.9 2.1 0.4 2.1 0.4 2.1
V
6 V 0.5 1.3 2.5 0.5 2.5 0.5 2.5
I
I
VI = VCC or 0 6 V ±0.1 ±100 ±1000 ±1000 nA
I
CC
VI = VCC or 0, IO = 0 6 V 2 40 20 µA
C
i
2 V to 6 V 3 10 10 10 pF
switching characteristics over recommended operating free-air temperature range, CL = 50 pF
(unless otherwise noted) (see Figure 1)
FROM TO
TA = 25°C SN54HC14 SN74HC14
PARAMETER
(INPUT) (OUTPUT)
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
2 V 55 125 190 155
t
pd
A Y
4.5 V 12 25 38 31
ns
6 V 11 21 32 26
2 V 38 75 110 95
t
t
Y
4.5 V 8 15 22 19
ns
6 V 6 13 19 16
operating characteristics, TA = 25°C
PARAMETER TEST CONDITIONS TYP UNIT
C
pd
Power dissipation capacitance per inverter No load 20 pF
SN54HC14, SN74HC14
HEX SCHMITT-TRIGGER INVERTERS
SCLS085B – DECEMBER 1982 – REVISED MA Y 1997
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
VOLTAGE WAVEFORM
INPUT RISE AND FALL TIMES
50%50%
10%10%
90% 90%
V
CC
0 V
t
r
t
f
Input
VOLTAGE WAVEFORMS
PROPAGATION DELAY AND OUTPUT TRANSITION TIMES
50%
50%50%
10%10%
90% 90%
V
CC
V
OH
V
OL
0 V
t
r
t
f
Input
In-Phase
Output
50%
t
PLH
t
PHL
50% 50%
10% 10%
90%90%
V
OH
V
OL
t
r
t
f
t
PHL
t
PLH
Out-of-Phase
Output
Test
Point
From Output
Under Test
CL = 50 pF
(see Note A)
LOAD CIRCUIT
NOTES: A. CL includes probe and test-fixture capacitance.
B. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following
characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr = 6 ns, tf = 6 ns.
C. The outputs are measured one at a time with one input transition per measurement.
D. t
PLH
and t
PHL
are the same as tpd.
Figure 1. Load Circuit and Voltage Waveforms
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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
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Copyright 1998, Texas Instruments Incorporated
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