HEF4519BD Philips Semiconductors, HEF4519BD Datasheet - Page 2

• Manufacturer Part Number: HEF4519BD
• Description: Quadruple 2-input multiplexer
• Manufacturer: Philips Semiconductors

Philips Semiconductors
DESCRIPTION
The HEF4519B provides four multiplexing circuits with
common select inputs (S
inputs (A
select four bits of information from one of two sources.
The ‘A’ inputs are selected when S
when S
(O
B
January 1995
HEF4519BP(N):
HEF4519BD(F):
HEF4519BT(D):
( ): Package Designator North America
n
Quadruple 2-input multiplexer
n
inputs (O
) is the logical EXCLUSIVE-NOR of the A
B
n
is HIGH. When S
, B
n
n
) and one output (O
= A
Fig.2 Pinning diagram.
n
16-lead DIL; plastic (SOT38-1)
16-lead DIL; ceramic (cerdip)
(SOT74)
16-lead SO; plastic (SOT109-1)
B
n
A
).
, S
A
and S
B
); each circuit contains two
n
A
). It may be used to
B
is HIGH, the ‘B’ inputs
are HIGH, the output
n
and
Fig.1 Functional diagram.
2
When S
independent of the multiplexer inputs (A
The HEF4519B cannot be used to multiplex analogue
signals. The outputs utilize standard buffers for best
performance.
PINNING
FAMILY DATA, I
See Family Specifications
S
A
B
O
A
0
o
0
, S
to A
to B
to O
B
3
3
A
3
and S
B
DD
are LOW, the output (O
selects inputs (active HIGH)
multiplexer inputs
multiplexer inputs
multiplexer outputs
LIMITS category MSI
Product specification
HEF4519B
n
n
and B
) is LOW,
n
).
MSI