hef4028b NXP Semiconductors, hef4028b Datasheet - Page 2

• Manufacturer Part Number: hef4028b
• Description: 1-of-10 Decoder
• Manufacturer: NXP Semiconductors

Philips Semiconductors
DESCRIPTION
The HEF4028B is a 4-bit BCD to 1-of-10 active HIGH
decoder. A 1-2-4-8 BCD code applied to inputs A
causes the selected output to be HIGH, the other nine will
be LOW. If desired, the device may be used as a 1-of-8
decoder with enable; 3-bit octal inputs are applied to inputs
A
becomes an active LOW enable, forcing the selected
output LOW when A
be used as an 8-output (O
A
The outputs are fully buffered for best performance.
January 1995
0
2
, A
1-of-10 decoder
as address inputs and A
1
and A
2
selecting an output O
Fig.2 Pinning diagram.
3
is HIGH. The HEF4028B may also
0
3
to O
as an active LOW data input.
7
) demultiplexer with A
0
to O
7
. Input A
Fig.1 Functional diagram.
0
to A
3
then
0
3
to
2
PINNING
FAMILY DATA, I
See Family Specifications
HEF4028BP(N):
HEF4028BD(F):
HEF4028BT(D):
( ): Package Designator North America
A
O
0
0
to A
to O
3
9
address inputs, 1-2-4-8 BCD
outputs (active HIGH)
DD
LIMITS category MSI
16-lead DIL; plastic
16-lead DIL; ceramic (cerdip)
16-lead SO; plastic
(SOT38-1)
(SOT74)
(SOT109-1)
Product specification
HEF4028B
MSI