74F14 Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
Fabricante
74F14 Datasheet PDF : 8 Pages
| |||
Philips Semiconductors
Hex inverter Schmitt trigger
Product specification
74F14
FEATURE
• Industrial temperature range available (–40°C to +85°C)
TYPE
74F14
TYPICAL
PROPAGATION
DELAY
5.0ns
TYPICAL SUPPLY
CURRENT
(TOTAL)
18mA
DESCRIPTION
The 74F14 contains six logic inverters which accept standard TTL
input signals and provide standard TTL output levels. They are
capable of transforming slowly changing input signals into sharply
defined, jitter free output signals. In addition, they have greater noise
margin than conventional inverters. Each circuit contains a Schmitt
trigger followed by a Darlington level shifter and a phase splitter
driving a TTL totem-pole output. The Schmitt trigger uses positive
feedback to effectively speed-up slow input transitions, and provide
different input threshold voltages for positive-going and negative-going
input threshold (typically 800mV) is determined internally by resistor
ratios and is insensitive to temperature and supply voltage variations.
PIN CONFIGURATION
D0 1
Q0 2
D1 3
Q1 4
D2 5
Q2 6
GND 7
14 VCC
13 D5
12 Q5
11 D4
10 Q4
9 D3
8 Q3
SF00028
ORDERING INFORMATION
ORDER CODE
DESCRIPTION
14-pin plastic DIP
COMMERCIAL RANGE
VCC = 5V ±10%, Tamb = 0°C to +70°C
N74F14N
INDUSTRIAL RANGE
VCC = 5V ±10%, Tamb = –40°C to +85°C
I74F14N
14-pin plastic SO
N74F14D
I74F14D
PKG DWG #
SOT27-1
SOT108-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74F (U.L.) HIGH/LOW
Dn
Data inputs
1.0/1.0
Qn
Data output
50/33
NOTE:
1 One (1.0) FAST unit load is defined as: 20µA in the High state and 0.6mA in the Low state.
LOGIC DIAGRAM
VCC = Pin 14
GND = Pin 7
D0
1
D1
3
D2
5
D3
9
D4
11
D5
13
2
Q0
4
Q1
6
Q2
8
Q3
10
Q4
12
Q5
SF00029
FUNCTION TABLE
INPUTS
Dn
L
H
NOTES:
H = High voltage level
L = Low voltage level
LOAD VALUE HIGH/LOW
20µA/0.6mA
1.0mA/20mA
OUTPUT
Qn
H
L
November 26, 1990
2
853 0331 01123
Share Link: 