Philips Semiconductors Product specification
74F5371-of-10 decoder (3-State)
11989 Jan 20 853–0873 95586
DESCRIPTION
The 74F537 is a one-of-ten decoder/demultiplexer with four active
High BCD inputs and ten mutually exclusive outputs. A Polarity
control (P) input determines whether the outputs are active Low or
active High. The 74F537 has 3-State outputs and a High signal on
the Output Enables (OE) input forces all outputs to the high
impedance state. Two input Enables, active High (E1) and active
Low (E0), are available for demultiplexing data to the selected
output in either non-inverted or inverted form. Input codes greater
than BCD nine causes all outputs to go to the inactive state (i.e.,
same polarity as the P input).
TYPE
TYPICAL
PROPAGATION DELAY
TYPICAL SUPPLY
CURRENT
(TOTAL)
74F537 9ns 44mA
ORDERING INFORMATION
DESCRIPTION COMMERCIAL RANGE
V
CC
= 5V ±10%, T
amb
= 0°C to +70°C
20-Pin Plastic DIP N74F537N
20-Pin Plastic SOL N74F537D
PIN CONFIGURATION
20
19
18
17
16
15
14
13
12
10 11
9
8
7
6
5
4
3
2
1
VCC
Q3
Q4
A3
Q9
Q8
Q7
Q2
Q1
Q0
A0
A1
Q5
Q6
GND
E0
E1
OE
P
SF01004
A2
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS DESCRIPTION
74F(U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
A0 - A3 Data inputs 1.0/1.0 20µA/0.6mA
E0 Enable input (active Low) 1.0/1.0 20µA/0.6mA
E1 Enable input (active High) 1.0/1.0 20µA/0.6mA
P Polarity control input 1.0/1.0 20µA/0.6mA
OE Output Enable input 1.0/1.0 20µA/0.6mA
Q0 - Q9 Data outputs 150/40 3.0mA/24mA
NOTE: One (1.0) FAST Unit Load is defined as: 20µA in the High state and 0.6mA in the Low state.
LOGIC SYMBOL
6716
VCC = Pin 20
GND = Pin 10
3211918891
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
P
E0
E1
OE
4
15
14
5
A0 A1 A2
SF01005
17
A3
12 13
Q8 Q9
LOGIC SYMBOL (IEEE/IEC)
6
7
17
13
19
DMUX
1
2
3
5
0,10
0
3
10G
0
9
SF01006
11
9
8
18
1,10
2,10
3,10
4,10
5,10
6,10
7,10
14
15
4
&
&
N10
8,10
9,10
13
12
EN