The 74F539 contains two independent decoders. Each accepts two
address (A0 - A1) input signals and decodes them to select one of
four mutually exclusive outputs. A Polarity control (P) input
determines whether the outputs are active Low (P=H) or active High
(P=L). An active-Low Enable (E
) is available for data demultiplexing.
Data is routed to the selected output in non-inverted or inverted form
in the active-Low mode or inverted form in the active-High mode. A
High signal on the Output Enable (OE
A0a - A1aDecoder A Address inputs1.0/1.020µA/0.6mA
A0b - A1bDecoder B Address inputs1.0/1.020µA/0.6mA
Ea, EbEnable inputs (active Low)1.0/1.020µA/0.6mA
OEa, OEbOutput Enable inputs (active Low)1.0/1.020µA/0.6mA
Pa, PbPolarity control inputs1.0/1.020µA/0.6mA
Q0a–Q3aDecoder A Data outputs150/403.0mA/24mA
Q0b–Q3bDecoder A Data outputs150/403.0mA/24mA
NOTE: One (1.0) FAST Unit Load is defined as: 20µA in the High state and 0.6mA in the Low state.
LOAD VALUE
HIGH/LOW
SF01013
LOGIC SYMBOL
6717
13
15
14
4
16
5
VCC = Pin 20
GND = Pin 10
Pa
Ea
OEa
Pb
Eb
OEb
Q0a Q1a Q2a Q3a Q0b Q1b Q2b Q3b
A0aA1aA0b
12119832119
1990 Feb 23853–1274 98905
18
A1b
SF01014
LOGIC SYMBOL (IEEE/IEC)
4
5
17
18
16
13
14
6
7
15
1
DMUX
N4
EN
0
G
1
0,4
1,4
0
2,4
3
3,4
3
2
1
19
12
11
9
8
SF01015
Page 2
Philips Semiconductors Product specification
OPERATING MODE
74F539Dual 1-of-4 decoder (3-State)
LOGIC DIAGRAM
7, 18
A1n
6, 17
A0n
15, 16
En
13, 4
Pn
14, 5
V
= Pin 20
CC
GND = Pin 10
OEn
12, 311, 29, 18, 19
Q0nQ1nQ2nQ3n
SF01016
FUNCTION TABLE
INPUTSOUTPUTS
OE
n
EnA1nA0nQ0nQ1nQ2nQ3n
HXXXZZZZHigh Impedance
LHXXQn=PDisable
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
H
L
L
H
H
L
H
L
H
L
H
L
H
H
L
L
L
L
H
H
H
L
H
L
L
H
L
H
H
L
L
H
L
H
H
L
H
L
L
Active High output
L
H
H
H
Active Low output
H
L
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High impedance “off” state
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limits set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free-air temperature range.)
SYMBOL
V
CC
V
IN
I
IN
V
OUT
I
OUT
T
amb
T
stg
Supply voltage–0.5 to +7.0V
Input voltage–0.5 to +7.0V
Input current–30 to +5mA
Voltage applied to output in High output state–0.5 to +V
Current applied to output in Low output state48mA
Operating free-air temperature range0 to +70°C
Storage temperature–65 to +150°C
PARAMETERRATINGUNIT
(P = L)
(P = H)
CC
V
1990 Feb 23
2
Page 3
Philips Semiconductors Product specification
SYMBOL
PARAMETER
UNIT
SYMBOL
PARAMETER
TEST CONDITIONS
1
UNIT
V
CC
MIN, V
IL
MAX
VOLL
V
CC
MIN, V
IL
MAX
74F539Dual 1-of-4 decoder (3-State)
RECOMMENDED OPERATING CONDITIONS
LIMITS
MINNOMMAX
V
CC
V
IH
V
IL
I
IK
I
OH
I
OL
T
amb
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
V
OH
V
IK
I
I
I
IH
I
IL
I
OZH
I
OZL
I
OS
I
CC
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value under the recommended operating conditions for the applicable type.
2. All typical values are at V
3. Not more than one output should be shorted at a time. For testing I
techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting
of a High output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any
sequence of parameter tests, I