V Datasheet, PDF (1/13 Pages) Continental Device India Limited – SOT-23 Formed SMD Package

HCF4532B
8-BIT PRIORITY ENCODER
s CONVERTS FROM 1 TO 8 TO INPUTS
BINARY
s PROVIDES CASCADING FEATURE TO
HANDLE ANY NUMBER OF INPUTS
s GROUP SELECT INDICATES ONE OR
MORE PRIORITY INPUTS
s QUIESCENT CURRENT SPECIFIED UP TO
20V
s STANDARDIZED SYMMETRICAL OUTPUT
CHARACTERISTICS
s 5V, 10V AND 15V PARAMETRIC RATINGS
s INPUT LEAKAGE CURRENT
I_I = 100nA (MAX) AT V_DD = 18V T_A = 25°C
s 100% TESTED FOR QUIESCENT CURRENT
s MEETS ALL REQUIREMENTS OF JEDEC
JESD13B "STANDARD SPECIFICATIONS
FOR DESCRIPTION OF B SERIES CMOS
DEVICES"
DESCRIPTION
HCF4532B is a monolithic integrated circuit
fabricated in Metal Oxide Semiconductor
technology available in DIP and SOP packages.
HCF4532B consists of a combinational logic that
encodes the highest priority input (D7-D0) to a
3-bit binary code. The eight inputs, D7 through D0,
DIP
SOP
ORDER CODES
PACKAGE
TUBE
DIP
SOP
HCF4532BEY
HCF4532BM1
T&R
HCF4532M013TR
each have an assigned priority. D7 is the highest
priority and D0 is the lowest. The priority encoder
is inhibited when the chip enable input E_I is low.
When E_I is high, the binary representation of the
highest priority input appears on output lines
Q2-Q0, and the group select line GS is high to
indicate that priority inputs are present. The
enable out (E_O) is high when no priority inputs are
present. If any input is high, E_O is low and all
cascaded lower order stages are disabled.
PIN CONNECTION
May 2004
Rev. 2
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