Jan 1, 1995 - DESCRIPTION. The HEF4539B is a dual 4-input multiplexer with common select logic. Each multiplexer has four multiplexer inputs. (I0 and I3) ...
Dual 4-input multiplexer DESCRIPTION The HEF4539B is a dual 4-input multiplexer with common select logic. Each multiplexer has four multiplexer inputs (I0 and I3), an active LOW enable input (E) and a multiplexer output (O). When HIGH, E forces O of the respective multiplexer LOW, independent of the select inputs (S0 to S1) and I0 to I3. When E is LOW, S0 and S1 determine which multiplexer input (I0 to I3) on each of the multiplexers is routed to the respective multiplexer output (O).
Fig.1 Functional diagram.
PINNING
Fig.2 Pinning diagram.
I0A, I1A, I2A, I3A
multiplexer inputs
I0B, I1B, I2B, I3B
multiplexer inputs
S0, S1
select inputs
EA, EB
enable inputs (active LOW)
OA, OB
multiplexer outputs
FAMILY DATA, IDD LIMITS category MSI See Family Specifications
HEF4539BP(N):
16-lead DIL; plastic (SOT38-1)
HEF4539BD(F):
16-lead DIL; ceramic (cerdip)
HEF4539BT(D):
16-lead SO; plastic
(SOT74) (SOT109-1) ( ): Package Designator North America
January 1995
2
Philips Semiconductors
Product specification
HEF4539B MSI
Dual 4-input multiplexer
Fig.3 Logic diagram.
Notes
FUNCTION TABLE INPUTS S0
S1
En
On
X
X
H
L
L
L
L
I0
H
L
L
I1
L
H
L
I2
H
H
L
I3
January 1995
1. H = HIGH state (the more positive voltage) L = LOW state (the less positive voltage) X = state is immaterial
Jan 1, 1995 - January 1995. 2. Philips Semiconductors. Product specification. Dual 4-input multiplexer. HEF4539B. MSI. DESCRIPTION. The HEF4539B is a ...
Side B Data Inputs. 1.0/1.0. 20 µA/â0.6 mA. S0, S1. Common Select Inputs. 1.0/1.0. 20 µA/â0.6 mA. Ea. Side A Enable Input (Active LOW). 1.0/1.0. 20 µA/â0.6 mA.
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