74HCT14D.pdf

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INTEGRATED CIRCUITS
DATA SHEET
74HC14; 74HCT14
Hex inverting Schmitt trigger
Product specification
Supersedes data of 1997 Aug 26
2003 Oct 30
323060679.059.png
Philips Semiconductors
Product specification
Hex inverting Schmitt trigger
74HC14; 74HCT14
FEATURES
DESCRIPTION
·
Applications:
– Wave and pulse shapers
– Astable multivibrators
– Monostable multivibrators.
The 74HC14 and 74HCT14 are high-speed Si-gate CMOS
devices and are pin compatible with low power Schottky
TTL (LSTTL). They are specified in compliance with
JEDEC standard no. 7A.
The 74HC14 and 74HCT14 provide six inverting buffers
with Schmitt-trigger action. They are capable of
transforming slowly changing input signals into sharply
defined, jitter-free output signals.
·
Complies with JEDEC standard no. 7A
·
ESD protection:
HBM EIA/JESD22-A114-A exceeds 2000 V
MM EIA/JESD22-A115-A exceeds 200 V.
·
Specified from - 40 to +85 ° C and - 40 to +125 ° C.
QUICK REFERENCE DATA
GND = 0 V; T amb =25
C; t r = t f = 6 ns
TYPICAL
SYMBOL
PARAMETER
CONDITIONS
UNIT
HC
HCT
t PHL /t PLH
propagation delay nA to nY
C L = 15 pF; V CC = 5 V 12
17
ns
C I
input capacitance
3.5
3.5
pF
C PD
power dissipation capacitance per gate notes 1 and 2
7
8
pF
Notes
1. C PD is used to determine the dynamic power dissipation (P D in
m
W):
P D =C PD ´
V CC 2
´
f i ´
N+
S
(C L ´
V CC 2
´
f o ) where:
f o ) = sum of the outputs.
2. For type 74HC14 the condition is V I = GND to V CC .
For type 74HCT14 the condition is V I = GND to V CC -
f i = input frequency in MHz;
f o = output frequency in MHz;
C L = output load capacitance in pF;
V CC = supply voltage in Volts;
N = total load switching outputs;
S
(C L ´
V CC 2
´
1.5 V.
2003 Oct 30
2
°
323060679.070.png 323060679.081.png
Philips Semiconductors
Product specification
Hex inverting Schmitt trigger
74HC14; 74HCT14
FUNCTION TABLE
INPUT
OUTPUT
nA
nY
L
H
H
L
Note
1. H = HIGH voltage level;
L = LOW voltage level.
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
TEMPERATURE RANGE
PINS
PACKAGE
MATERIAL
CODE
74HC14D
-
40 to +125
°
C
14
SO14
plastic
SOT108-1
74HCT14D
- 40 to +125 ° C
14
SO14
plastic
SOT108-1
74HC14DB
-
40 to +125
°
C
14
SSOP14
plastic
SOT337-1
74HCT14DB
-
40 to +125
°
C
14
SSOP14
plastic
SOT337-1
74HC14N
-
40 to +125
°
C
14
DIP14
plastic
SOT27-1
74HCT14N
- 40 to +125 ° C
14
DIP14
plastic
SOT27-1
74HC14PW
-
40 to +125
°
C
14
TSSOP14
plastic
SOT402-1
74HCT14PW
-
40 to +125
°
C
14
TSSOP14
plastic
SOT402-1
74HC14BQ
-
40 to +125
°
C
14
DHVQFN14
plastic
SOT762-1
74HCT14BQ
- 40 to +125 ° C
14
DHVQFN14
plastic
SOT762-1
PINNING
PIN
SYMBOL
DESCRIPTION
1
1A
data input
2
1Y
data output
3
2A
data input
4
2Y
data output
5
3A
data input
6
3Y
data output
7
GND
ground (0 V)
8
4Y
data output
9
4A
data input
10
5Y
data output
11
5A
data input
12
6Y
data output
13
6A
data input
14
V CC
supply voltage
2003 Oct 30
3
323060679.092.png 323060679.001.png
Philips Semiconductors
Product specification
Hex inverting Schmitt trigger
74HC14; 74HCT14
handbook, halfpage
handbook, halfpage
1A V CC
1A
1
14
V CC
1
14
1Y
2
13
6A
1Y
2
13
6A
2A
3
12
6Y
2A
3
12
6Y
2Y
4
14
11
5A
2Y
4
GND (1)
11
5A
3A
5
10
5Y
3Y
6
9
4A
3A
5
10
5Y
GND
7
8
4Y
3Y
6
9
4A
MNA839
7
8
Top view
GND
4Y
MBL760
(1) The die substrate is attached to this pad using conductive die
attach material. It can not be used as a supply pin or input.
Fig.1 Pin configuration.
Fig.2 Pin configuration DHVQFN14.
handbook, halfpage
1
2
handbook, halfpage
1
1A
1Y
2
2A
2Y
3
4
3
4
5
3A
3Y
6
5
6
9
4A
4Y
8
9
8
11
5A
5Y
10
11
10
13
6A
6Y
12
13
12
MNA840
MNA841
Fig.3 Logic symbol.
Fig.4 IEC logic symbol.
2003 Oct 30
4
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Philips Semiconductors
Product specification
Hex inverting Schmitt trigger
74HC14; 74HCT14
handbook, halfpage
1
1A
1Y
2
3
2A
2Y
4
5
3A
3Y
6
handbook, halfpage
Y
4A
4Y
9
8
MNA843
11
5A
5Y
10
13
6A
6Y
12
MNA842
Fig.5 Functional diagram.
Fig.6 Logic diagram (one Schmitt trigger).
2003 Oct 30
5
A
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