The74HC14and74HCT14arehigh-speedSi-gateCMOS
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.
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
=25°C; tr= tf= 6 ns
amb
SYMBOLPARAMETERCONDITIONS
t
PHL/tPLH
C
I
C
PD
propagation delay nA to nYCL= 15 pF; VCC=5V1217ns
input capacitance3.53.5pF
power dissipation capacitance per gate notes 1 and 278pF
Notes
1. C
is used to determine the dynamic power dissipation (PDin µW):
PD
PD=CPD× V
2
× fi× N+Σ(CL× V
CC
2
× fo) where:
CC
fi= input frequency in MHz;
fo= output frequency in MHz;
= output load capacitance in pF;
C
L
VCC= supply voltage in Volts;
N = total load switching outputs;
Σ(CL× V
2
× fo) = sum of the outputs.
CC
2. For type 74HC14 the condition is VI= GND to VCC.
For type 74HCT14 the condition is VI= GND to VCC− 1.5 V.
TYPICAL
UNIT
HCHCT
2003 Oct 302
Philips SemiconductorsProduct specification
Hex inverting Schmitt trigger74HC14; 74HCT14
FUNCTION TABLE
INPUTOUTPUT
nAnY
LH
HL
Note
1. H = HIGH voltage level;
L = LOW voltage level.
ORDERING INFORMATION
TYPE NUMBER
74HC14D−40 to +125 °C14SO14plasticSOT108-1
74HCT14D−40 to +125 °C14SO14plasticSOT108-1
74HC14DB−40 to +125 °C14SSOP14plasticSOT337-1
74HCT14DB−40 to +125 °C14SSOP14plasticSOT337-1
74HC14N−40 to +125 °C14DIP14plasticSOT27-1
74HCT14N−40 to +125 °C14DIP14plasticSOT27-1
74HC14PW−40 to +125 °C14TSSOP14plasticSOT402-1
74HCT14PW−40 to +125 °C14TSSOP14plasticSOT402-1
74HC14BQ−40 to +125 °C14DHVQFN14plasticSOT762-1
74HCT14BQ−40 to +125 °C14DHVQFN14plasticSOT762-1
In accordance with the Absolute Maximum System (IEC 60134); voltages are referenced to GND (ground = 0 V).
SYMBOLPARAMETERCONDITIONSMIN.MAX.UNIT
V
CC
I
IK
I
OK
I
O
supply voltage−0.5+7V
input diode currentVI< −0.5 V or VI>VCC+ 0.5 V−±20mA
output diode currentVO< −0.5 V or VO>VCC+ 0.5 V−±20mA
output source or sink
−0.5V<VO<VCC+ 0.5 V−±25mA
current
I
CC;IGNDVCC
T
stg
P
tot
or GND current−50mA
storage temperature−65+150°C
power dissipationT
= −40 to +125 °C
amb
DIP14 packages; note 1−750mW
Other packages; note 2−500mW
Notes
1. For DIP14 packages: above 70 °C the value of PD derates linearly with 12 mW/K.
2. For SO14 packages: above 70 °C the value of PD derates linearly with 8 mW/K.
For (T)SSOP14 packages: above 60 °C the value of PD derates linearly with 5.5 mW/K.
For DHVQFN14 packages: above 60 °C the value of PD derates linearly with 4.5 mW/K.
2003 Oct 306
Philips SemiconductorsProduct specification
Hex inverting Schmitt trigger74HC14; 74HCT14
DC CHARACTERISTICS
Type 74HC14
At recommended operating conditions; voltages are referenced to GND (ground=0V).
SYMBOLPARAMETER
T
=25°C
amb
V
OH
HIGH-level output
voltage
V
OL
LOW-level output
voltage
I
LI
input leakage
current
I
CC
quiescent supply
current
T
= −40 to +85 °C
amb
V
OH
HIGH-level output
voltage
V
OL
LOW-level output
voltage
I
LI
input leakage
current
I
CC
quiescent supply
current
TEST CONDITIONS
MIN.TYP.
(1)
MAX.UNIT
OTHERVCC (V)
VI=VIHor V
IL
IO= −20 µA2.01.92.0−V
= −20 µA4.54.44.5−V
I
O
I
= −20 µA6.05.96.0−V
O
I
= −4.0 mA4.53.984.32−V
O
I
= −5.2 mA6.05.485.81−V
O
VI=VIHor V
IL
IO=20µA2.0−00.1V
I
=20µA4.5−00.1V
O
I
=20µA6.0−00.1V
O
I
= 4.0 mA4.5−0.150.26V
O
I
= 5.2 mA6.0−0.160.26V
O
VI=VCCor GND6.0−−0.1µA
VI=VCCor GND; IO= 0 6.0−−2.0µA
VI=VIHor V
IL
IO= −20 µA2.01.9−−V
I
=−20 µA4.54.4−−V
O
=−20 µA6.05.9−−V
I
O
I
=−4.0 mA4.53.84−−V
O
I
=−5.2 mA6.05.34−−V
O
VI=VIHor V
IL
IO=20µA2.0−−0.1V
I
=20µA4.5−−0.1V
O
I
=20µA6.0−−0.1V
O
I
= 4.0 mA4.5−−0.33V
O
I
= 5.2 mA6.0−−0.33V
O
VI=VCCor GND6.0−−1.0µA
VI=VCCor GND; IO= 0 6.0−−20µA
2003 Oct 307
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