Philips Semiconductors Product specification
74F14Hex inverter Schmitt trigger
2
November 26, 1990 853 0331 01123
FEATURE
• Industrial temperature range available (–40°C to +85°C)
TYPE
TYPICAL
PROPAGATION
DELAY
TYPICAL SUPPLY
CURRENT
(TOTAL)
74F14 5.0ns 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
14
13
12
11
10
9
87
6
5
4
3
2
1
GND
V
CC
Q4
D3
Q3
D4
D5
Q
5
D0
Q
0
Q
2
D1
Q
1
D2
SF00028
ORDERING INFORMATION
ORDER CODE
DESCRIPTION
COMMERCIAL RANGE
V
CC
= 5V ±10%, T
amb
= 0°C to +70°C
INDUSTRIAL RANGE
V
CC
= 5V ±10%, T
amb
= –40°C to +85°C
PKG DWG #
14-pin plastic DIP N74F14N I74F14N SOT27-1
14-pin plastic SO N74F14D I74F14D SOT108-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS DESCRIPTION 74F (U.L.) HIGH/LOW LOAD VALUE HIGH/LOW
Dn Data inputs 1.0/1.0 20µA/0.6mA
Qn Data output 50/33 1.0mA/20mA
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
V
CC
= Pin 14
GND = Pin 7
SF00029
2
4
6
8
10
12
Q
0
Q
1
Q
2
Q3
Q
4
Q
5
1
3
5
9
11
13
D0
D1
D2
D3
D4
D5
FUNCTION TABLE
INPUTS OUTPUT
Dn Qn
L H
H L
NOTES:
H = High voltage level
L = Low voltage level
