74F14 Philips Semiconductors, 74F14 Datasheet - Page 2

• Manufacturer Part Number: 74F14
• Description: 8-input priority encoder
• Manufacturer: Philips Semiconductors

1 One (1.0) FAST unit load is defined as: 20 A in the High state and 0.6mA in the Low state.
Philips Semiconductors
FEATURE
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.
ORDERING INFORMATION
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
NOTE:
LOGIC DIAGRAM
November 26, 1990
V
GND = Pin 7
Industrial temperature range available (–40 C to +85 C)
CC
Hex inverter Schmitt trigger
14-pin plastic DIP
14-pin plastic SO
74F14
TYPE
DESCRIPTION
= Pin 14
PINS
Dn
Qn
PROPAGATION
D0
D1
D2
D3
D4
D5
TYPICAL
DELAY
5.0ns
1
3
5
9
11
13
V
CC
= 5V 10%, T
COMMERCIAL RANGE
N74F14N
N74F14D
2
4
6
8
10
12
SF00029
DESCRIPTION
amb
TYPICAL SUPPLY
Data inputs
Data output
Q0
Q1
Q2
Q3
Q4
Q5
CURRENT
= 0 C to +70 C
(TOTAL)
18mA
ORDER CODE
V
2
CC
PIN CONFIGURATION
FUNCTION TABLE
NOTES:
H = High voltage level
L = Low voltage level
= 5V 10%, T
INDUSTRIAL RANGE
74F (U.L.) HIGH/LOW
INPUTS
I74F14N
I74F14D
Dn
amb
H
1.0/1.0
L
50/33
GND
= –40 C to +85 C
D0
Q0
D1
Q1
D2
Q2
1
2
3
4
5
6
7
LOAD VALUE HIGH/LOW
SF00028
14
13
12
11
10
9
8
V
D5
Q5
D4
Q4
D3
Q3
CC
OUTPUT
1.0mA/20mA
Product specification
20 A/0.6mA
Qn
PKG DWG #
H
L
SOT108-1
SOT27-1
853 0331 01123
74F14