HCF4532B Datasheet PDF - STMicroelectronics
| Part Number | HCF4532B | |
| Description | 8-BIT PRIORITY ENCODER | |
| Manufacturers | STMicroelectronics | |
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There is a preview and HCF4532B download ( pdf file ) link at the bottom of this page. Total 15 Pages | ||
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HCC/HCF4532B
. CONVERTS FROM 1 OF 8 TO BINARY
. PROVIDES CASCADING FEATURE TO
HANDLE ANY NUMBER OF INPUTS
. GROUP SELECT INDICATES ONE OR MORE
PRIORITY INPUTS
. QUIESCENT CURRENT SPECIFIED TO 20V
FOR HCC DEVICE
. STANDARDIZED SYMMETRICAL OUTPUT
CHARACTERISTICS
. 5V, 10V, AND 15V PARAMETRIC RATINGS
. INPUT CURRENT OF 100 nA AT 18V AND 25°C
FOR HCC DEVICE
. 100% TESTED FOR QUIESCENT CURRENT
. MEETS ALL REQUIREMENTS OF JEDECTEN-
TATIVE STANDARD No 13A, ”STANDARD
SPECIFICATIONS FOR DESCRIPTION OF ”B”
SERIES CMOS DEVICES”
8–BIT PRIORITY ENCODER
EY
(Plastic Package)
F
(Ceramic Frit Seal Package)
M1
(Micro Package)
C1
(Plastic Chip Carrier)
ORDER CODES :
HCC4532BF HCF4532BM1
HCF4532BEY HCF4532BC1
PIN CONNECTIONS
DESCRIPTION
The HCC4532B (extended temperature range) and
HCF4532B (intermediate temperature range) are
monolithic integrated circuit, available in 16-lead
dual in-line plastic or ceramic package and plastic
micro package.
The HCC/HCF4532 consists of combinational logic
that encodes the highest priority input (D7-D0) to a
3-bit binary code. The eight inputs, D7 through D0,
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 El is low. When
El 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 (EO) is high when
no priority inputs are present. If any one input is high,
EO is low and all cascaded lower-order stages are
disabled.
June 1989
1/15
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HCC/HCF4532B
DYNAMIC ELECTRICAL CHARACTERISTICS (T amb = 25°C, CL = 50pF, RL = 200kΩ,
typical temperature coefficient for all VDD values is 0.3%/°C, all input rise and fall times = 20ns)
Symbol
Parameter
t PLH,
tP HL
Propagation Delay Time
(E I to EO , EI to GS)
Test Conditions
V al ue
V D D (V) Min. Typ. Max.
5 110 220
10 55 110
t PLH,
tP HL
Propagation Delay Time
(E I to Qm, Dn to GS)
t PLH,
tP HL
Propagation Delay Time
(Dn to QM)
t T L H,
tT HL
Transition Time
15 45 85
5 170 340
10 85 170
15 65 125
5 220 440
10 110 220
15 85 160
5 100 200
10 50 100
15 40 80
Unit
ns
ns
ns
ns
Minimum Output Low (sink) Current Charac-
teristics.
Typical Output High (source) Current Charac-
teristics.
5/15
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for HCF4532B electronic component. |
| Information | Total 15 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ HCF4532B.PDF Datasheet ] | |
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