HCC/HCF4532B
8BIT PRIORITY ENCODER
DESCRIPTION
.
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 JEDEC TEN-
TATIVE STANDARD N
o
13A, "STANDARD
SPECIFICATIONS FOR DESCRIPTION OF "B"
SERIES CMOS DEVICES"
June 1989
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 E
l
is low. When
E
l
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 one input is high,
E
O
is low and all cascaded lower-order stages are
disabled.
EY
(Plastic Package)
F
(Ceramic Frit Seal Package)
M1
(Micro Package)
ORDER CODES :
HCC4532BF
HCF4532BM1
HCF4532BEY
HCF4532BC1
PIN CONNECTIONS
C1
(Plastic Chip Carrier)
1/15
FUNCTIONAL DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
DD
*
Supply Voltage : H CC Types
H C F Types
0.5 to + 20
0.5 to + 18
V
V
V
i
Input Voltage
0.5 to V
DD
+ 0.5
V
I
I
DC Input Current (any one input)
10
mA
P
t o t
Total Power Dissipation (per package)
Dissipation per Output Transistor
for T
o p
= Full Package-temperature Range
200
100
mW
mW
T
o p
Operating Temperature : H CC Types
H C F Types
55 to + 125
40 to + 85
C
C
T
s t g
Storage Temperature
65 to + 150
C
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Val ue
Unit
V
DD
Supply Voltage : HC C Types
H C F Types
3 to 18
3 to 15
V
V
V
I
Input Voltage
0 to V
DD
V
T
o p
Operating Temperature : HCC Types
HC F Types
55 to + 125
40 to + 85
C
C
Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress
rating only and functional operation of the device at these or any other conditions above those indicated in the operational sec-
tions of this specifi cation is not implied. Exposure to absolute maximum rating conditions for external periods may affect device
reliability.
HCC/HCF4532B
2/15
LOGIC DIAGRAM
TRUTH TABLE
Input
Output
E
I
D 7
D 6
D 5
D 4
D 3
D 2
D 1
D 0
G S
Q 2
Q 1
Q 0
E
O
0
1
X
0
X
0
X
0
X
0
X
0
X
0
X
0
X
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
X
1
0
0
X
X
1
0
X
X
X
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
1
1
1
1
1
1
1
1
1
0
0
0
1
0
1
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
X
1
0
0
X
X
1
0
X
X
X
1
1
1
1
1
0
0
0
0
1
1
0
0
1
0
1
0
0
0
0
0
X
Don't Care
Logic 1
High
Logic 0
Low
HCC/HCF4532B
3/15
STATIC ELECTRICAL CHARACTERISTICS (over recommended operating conditions)
Test Conditions
Value
V
I
V
O
|I
O
|
V
D D
T
L o w
*
25
C
T
Hig h
*
Symbol
Parameter
(V)
(V)
(
A)
(V)
Min. Max. Min. Typ. Max. Min. Max.
Unit
I
L
Quiescent
Current
HCC
Types
0/ 5
5
5
0.04
5
150
A
0/10
10
10
0.04
10
300
0/15
15
20
0.04
20
600
0/20
20
100
0.08
100
3000
HCF
Types
0/ 5
5
20
0.04
20
150
0/10
10
40
0.04
40
300
0/15
15
80
0.04
80
600
V
O H
Output High
Voltage
0/ 5
< 1
5
4.95
4.95
4.95
V
0/10
< 1
10
9.95
9.95
9.95
0/15
< 1
15
14.95
14.95
14.95
V
O L
Output Low
Voltage
5/0
< 1
5
0.05
0.05
0.05
V
10/0
< 1
10
0.05
0.05
0.05
15/0
< 1
15
0.05
0.05
0.05
V
IH
Input High
Voltage
0.5/4.5
< 1
5
3.5
3.5
3.5
V
1/9
< 1
10
7
7
7
1.5/13.5
< 1
15
11
11
11
V
IL
Input Low
Voltage
4.5/0.5
< 1
5
1.5
1.5
1.5
V
9/1
< 1
10
3
3
3
13.5/1.5
< 1
15
4
4
4
I
O H
Output
Drive
Current
HCC
Types
0/ 5
2.5
5
2
1.6 3.2
1.15
mA
0/ 5
4.6
5
0.64
0.51 1
0.36
0/10
9.5
10
1.6
1.3 2.6
0.9
0/15
13.5
15
4.2
3.4 6.8
2.4
HCF
Types
0/ 5
2.5
5
1.53
1.36 3.2
1.1
0/ 5
4.6
5
0.52
0.44 1
0.36
0/10
9.5
10
1.3
1.1 2.6
0.9
0/15
13.5
15
3.6
3.0 6.8
2.4
I
O L
Output
Sink
Current
HCC
Types
0/ 5
0.4
5
0.64
0.51
1
0.36
mA
0/10
0.5
10
1.6
1.3
2.6
0.9
0/15
1.5
15
4.2
3.4
6.8
2.4
HCF
Types
0/ 5
0.4
5
0.52
0.44
1
0.36
0/10
0.5
10
1.3
1.1
2.6
0.9
0/15
1.5
15
3.6
3.0
6.8
2.4
I
IH
, I
IL
Input
Leakage
Current
HCC
Types
0/18
Any Input
18
0.1
10
5
0.1
1
A
HCF
Types
0/15
15
0.3
10
5
0.3
1
C
I
Input Capacitance
Any Input
5
7.5
pF
* T
Lo w
= 55
C for HCC device : 40
C for HCF device.
* T
High
= + 125
C for HCC device : + 85
C for HCF device.
The Noise Margin for both "1" and "0" level is : 1V min. with V
DD
= 5V, 2V min. with V
DD
= 10V, 2.5 V min. with V
DD
= 15V.
HCC/HCF4532B
4/15
DYNAMIC ELECTRICAL CHARACTERISTICS (T
amb
= 25
C, C
L
= 50pF, R
L
= 200k
,
typical temperature coefficient for all V
DD
values is 0.3%/
C, all input rise and fall times = 20ns)
Test Conditions
Val ue
Symbol
Parameter
V
D D
(V)
Min.
Typ.
Max.
Unit
t
PL H
,
t
P HL
Propagation Delay Time
(E
I
to E
O
, E
I
to GS)
5
110
220
ns
10
55
110
15
45
85
t
PL H
,
t
P HL
Propagation Delay Time
(E
I
to Qm, Dn to GS)
5
170
340
ns
10
85
170
15
65
125
t
PL H
,
t
P HL
Propagation Delay Time
(Dn to Q
M
)
5
220
440
ns
10
110
220
15
85
160
t
T L H
,
t
T HL
Transition Time
5
100
200
ns
10
50
100
15
40
80
Minimum Output Low (sink) Current
Charac-
teristics.
Typical
Output High (source) Current
Charac-
teristics.
HCC/HCF4532B
5/15
Minimum Output High (source) Current Charac-
teristics.
Typical Output Low (sink) Current Characteristics.
Typical Propagation Delay (Dn to Qm) vs. Supply
Voltage.
Typical Propagation Delay (EI to GS, EI to EO) vs.
Load Capacitance.
Typical Transition Time vs. Load Capacitance.
Typical Propagation Delay (Dn to Qm) vs. Load Ca-
pacitance.
HCC/HCF4532B
6/15
Typical Dynamic Power Dissipation vs. Frequency.
APPLICATIONS
16-LEVEL PRIORITY ENCODER
HCC/HCF4532B
7/15
0-TO-9 KEYBOARD ENCODER
APPLICATIONS (continued)
TRUTH TABLE
Input
Output
D 9
D 8
D 7
D 6
D 5
D 4
D 3
D 2
D 1
D 0
G S
Q 3'
Q2 '
Q 1'
Q 0
1
0
X
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
X
1
0
0
X
X
1
0
X
X
X
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
1
1
1
0
0
0
0
1
1
1
1
1
1
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
X
1
0
0
X
X
1
0
X
X
X
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
0
0
1
0
1
0
X = Don't Care
Logic 1
High
Logic 0
Low
HCC/HCF4532B
8/15
DIGITAL TO ANALOG CONVERSION
TEST CIRCUITS
Noise Immunity.
Input Leakage Current.
APPLICATIONS (continued)
HCC/HCF4532B
9/15
Quiescent Device Current.
Dynamic Power Dissipation.
TEST CIRCUITS (continued)
HCC/HCF4532B
10/15
Plastic DIP16 (0.25) MECHANICAL DATA
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
a1
0.51
0.020
B
0.77
1.65
0.030
0.065
b
0.5
0.020
b1
0.25
0.010
D
20
0.787
E
8.5
0.335
e
2.54
0.100
e3
17.78
0.700
F
7.1
0.280
I
5.1
0.201
L
3.3
0.130
Z
1.27
0.050
P001C
HCC/HCF4532B
11/15
Ceramic DIP16/1 MECHANICAL DATA
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
20
0.787
B
7
0.276
D
3.3
0.130
E
0.38
0.015
e3
17.78
0.700
F
2.29
2.79
0.090
0.110
G
0.4
0.55
0.016
0.022
H
1.17
1.52
0.046
0.060
L
0.22
0.31
0.009
0.012
M
0.51
1.27
0.020
0.050
N
10.3
0.406
P
7.8
8.05
0.307
0.317
Q
5.08
0.200
P053D
HCC/HCF4532B
12/15
SO16 (Narrow) MECHANICAL DATA
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
1.75
0.068
a1
0.1
0.2
0.004
0.007
a2
1.65
0.064
b
0.35
0.46
0.013
0.018
b1
0.19
0.25
0.007
0.010
C
0.5
0.019
c1
45
(typ.)
D
9.8
10
0.385
0.393
E
5.8
6.2
0.228
0.244
e
1.27
0.050
e3
8.89
0.350
F
3.8
4.0
0.149
0.157
G
4.6
5.3
0.181
0.208
L
0.5
1.27
0.019
0.050
M
0.62
0.024
S
8
(max.)
P013H
HCC/HCF4532B
13/15
PLCC20 MECHANICAL DATA
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
9.78
10.03
0.385
0.395
B
8.89
9.04
0.350
0.356
D
4.2
4.57
0.165
0.180
d1
2.54
0.100
d2
0.56
0.022
E
7.37
8.38
0.290
0.330
e
1.27
0.050
e3
5.08
0.200
F
0.38
0.015
G
0.101
0.004
M
1.27
0.050
M1
1.14
0.045
P027A
HCC/HCF4532B
14/15
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectonics.
1994 SGS-THOMSON Microelectronics - All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands -
Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A
HCC/HCF4532B
15/15
PDF 
ZIP