參數(shù)資料
型號(hào)： HEF4532B
廠商： NXP Semiconductors N.V.
英文描述： RAM LIFT PIN
中文描述： 8輸入優(yōu)先級(jí)編碼器
文件頁數(shù)： 2/8頁
文件大?。?/td> 99K
代理商： HEF4532B
January 1995
2
Philips Semiconductors
Product specification
8-input priority encoder
HEF4532B
MSI
DESCRIPTION
The HEF4532B is an 8-input priority encoder with eight
active HIGH priority inputs (I
0
to I
7
), three active HIGH
outputs (O
0
to O
2
), an active HIGH enable input (E
in
), an
active HIGH enable output (E
out
) and an active HIGH
group select output (GS).
Data is accepted on inputs I
0
to I
7
. The binary code
corresponding to the highest priority input (I
0
to I
7
) which is
HIGH, is generated on O
0
to O
2
if E
in
is HIGH. Input I
7
is
assigned the highest priority.
GS is HIGH when one or more priority inputs and E
in
are
HIGH. E
out
is HIGH when I
0
to I
7
are LOW and E
in
is HIGH.
E
in
, when LOW, forces all outputs (O
0
to O
2
, GS, E
out
)
LOW.
Fig.1 Functional diagram.
Fig.2 Pinning diagram.
PINNING
FAMILY DATA, I
DD
LIMITS category MSI
See Family Specifications
HEF4532BP(N):
16-lead DIL; plastic
(SOT38-1)
16-lead DIL; ceramic (cerdip)
(SOT74)
16-lead SO; plastic
(SOT109-1)
HEF4532BD(F):
HEF4532BT(D):
( ): Package Designator North America
I
0
to I
7
E
in
E
out
GS
O
0
to O
2
priority inputs
enable input
enable output
group select output
outputs
相關(guān)PDF資料
PDF描述
HEF4532BD 8-input priority encoder
HEF4532BF 8-input priority encoder
HEF4532BN 8-input priority encoder
HEF4532BP 8-input priority encoder
HEF4532BT 8-input priority encoder
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