N74F538N View Datasheet(PDF) - Philips Electronics
Part Name
Description
View to exact match
N74F538N Datasheet PDF : 10 Pages
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Philips Semiconductors
1-of-8 decoder (3-State)
Product specification
74F538
LOGIC DIAGRAM
A2 17
A1 7
A0 6
16
E0
E1 15
14
E2
E3 13
12
P
VCC = Pin 20
GND = Pin 10
4
OE0
OE1 5
3
2
1
19
18
8
9
11
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
SF00999
FUNCTION TABLE
INPUTS
OUTPUTS
OE0 OE1 E0 E1 E2 E3 A2 A1 A0 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
HXXXXXXXXZ Z Z Z Z Z Z Z
XHXXXXXXXZ Z Z Z Z Z Z Z
L LHXXXXXX
L LXHXXXXX
L LXXLXXXX
L LXXXLXXX
Outputs equal P input
L L L LHHL L LHL L L L L L L
L L L LHHL LHLHL L L L L L
L L L LHHLHL L LHL L L L L
L L L LHHLHHL L LHL L L L
L L L LHHHL L L L L LHL L L
L L L LHHHLHL L L L LHL L
L L L LHHHHL L L L L L LHL
L L L LHHHHHL L L L L L LH
L L L LHHL L L LHHHHHHH
L L L LHHL L HH LHHHHHH
L L L LHHLHLHHLHHHHH
L L L LHHLHHHHHLHHHH
L L L LHHHL LHHHHLHHH
L L L LHHHL HHHHHHLHH
L L L LHHHHLHHHHHHLH
L L L LHHHHHHHHHHHH L
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High impedance “off” state
OPERATING MODE
High Impedance
Disable
Active High output
(P = L)
Active Low output
(P = H)
1989 Apr 06
3
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