STMicroelectronics HCF4532B 8-bit priority encoder Datasheet

HCC/HCF4532B
8–BIT PRIORITY ENCODER
..
.
.
.
..
..
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 TENo
TATIVE STANDARD N 13A, ”STANDARD
SPECIFICATIONS FOR DESCRIPTION OF ”B”
SERIES CMOS DEVICES”
EY
(Plastic Package)
M1
(Micro Package)
F
(Ceramic Frit Seal 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 highestpriority 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
HCC/HCF4532B
FUNCTIONAL DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
V DD*
Parameter
Supply Voltage : H CC Types
H C F Types
Vi
Input Voltage
II
Value
Unit
– 0.5 to + 20
– 0.5 to + 18
V
V
– 0.5 to V DD + 0.5
V
DC Input Current (any one input)
± 10
mA
Pt ot
Total Power Dissipation (per package)
Dissipation per Output Transistor
for T o p = Full Package-temperature Range
200
mW
100
mW
Top
Operating Temperature : H CC Types
H C F Types
– 55 to + 125
– 40 to + 85
°C
°C
Tstg
Storage Temperature
– 65 to + 150
°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 sections of this specification is not implied. Exposure to absolute maximum rating conditions for external periods may affect device
reliability.
RECOMMENDED OPERATING CONDITIONS
Symbol
V DD
VI
T op
2/15
Parameter
Supply Voltage : HC C Types
H C F Types
Input Voltage
Operating Temperature : HCC Types
HC F Types
Value
Unit
3 to 18
3 to 15
V
V
0 to V DD
V
– 55 to + 125
– 40 to + 85
°C
°C
HCC/HCF4532B
LOGIC DIAGRAM
TRUTH TABLE
Input
Output
EI
D7
D6
D5
D4
D3
D2
D1
D0
GS
Q2
Q1
Q0
EO
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
3/15
HCC/HCF4532B
STATIC ELECTRICAL CHARACTERISTICS (over recommended operating conditions)
Test Conditions
Symbol
IL
VO H
VO L
Parameter
Quiescent
Current
VI
(V)
VO
(V)
V IL
I OH
0/ 5
5
5
0.04
5
150
HCC
Types 0/15
10
10
0.04
10
300
15
20
0.04
20
600
0/20
20
100
0.08
100
3000
0/ 5
HCF
0/10
Types
0/15
5
20
0.04
20
150
10
40
0.04
40
300
15
80
0.04
80
600
Output High
Voltage
Output Low
Voltage
0/ 5
< 1
5
4.95
4.95
4.95
0/10
< 1
10
9.95
9.95
9.95
0/15
< 1
15
14.95
5/0
< 1
5
0.05
0.05
0.05
10/0
< 1
10
0.05
0.05
0.05
I OL
Input High
Voltage
Input Low
Voltage
Output
Drive
Current
Output
Sink
Current
CI
Input
Leakage
Current
14.95
< 1
15
0.5/4.5
< 1
5
0.05
1/9
< 1
10
7
7
7
1.5/13.5 < 1
15
11
11
11
3.5
0.05
3.5
< 1
5
1.5
1.5
1.5
< 1
10
3
3
3
13.5/1.5 < 1
15
4
4
4
5
–2
– 1.6 – 3.2
– 1.15
HCC
Types 0/10
4.6
5
– 0.64
– 0.51 – 1
– 0.36
9.5
10
– 1.6
– 1.3 – 2.6
– 0.9
0/15
13.5
15
– 4.2
– 3.4 – 6.8
– 2.4
0/ 5
2.5
5
– 1.53
– 1.36 – 3.2
– 1.1
0/ 5
HCF
Types 0/10
4.6
5
– 0.52
– 0.44 – 1
– 0.36
9.5
10
– 1.3
– 1.1 – 2.6
– 0.9
0/15
13.5
15
– 3.6
– 3.0 – 6.8
– 2.4
0/ 5
0.4
5
0.64
0.51
1
0.36
HCC
0/10
Types
0/15
0.5
10
1.6
1.3
2.6
0.9
1.5
15
4.2
3.4
6.8
2.4
0/ 5
0.4
5
0.52
0.44
1
0.36
0.5
10
1.3
1.1
2.6
0.9
1.5
15
3.6
3.0
6.8
2.4
18
± 0.1
±10 – 5 ± 0.1
15
± 0.3
±10
V
mA
mA
± 1
µA
Any Input
5
–5
± 0.3
7.5
* TLo w = – 55°C for HCC device : – 40°C for HCF device.
* THigh = + 125°C for HCC device : + 85°C for HCF device.
The Noise Margin for both ”1” and ”0” level is : 1V min. with VDD = 5V, 2V min. with VDD = 10V, 2.5 V min. with VDD = 15V.
4/15
V
9/1
Any Input
V
0.05
2.5
Input Capacitance
V
4.5/0.5
HCF 0/15
Types
µA
3.5
0/ 5
HCC 0/18
Types
Unit
14.95
0/ 5
HCF
0/10
Types
0/15
I IH, I IL
|I O | V D D
T L o w*
25 °C
T Hig h *
(µA) (V) Min. Max. Min. Typ. Max. Min. Max.
0/10
15/0
V IH
Value
±1
pF
HCC/HCF4532B
DYNAMIC ELECTRICAL CHARACTERISTICS (T amb = 25°C, C L = 50pF, R L = 200kΩ,
typical temperature coefficient for all V DD values is 0.3%/°C, all input rise and fall times = 20ns)
Symbol
t PL H,
t P HL
t PL H,
t P HL
Parameter
Test Conditions
V D D (V) Min.
Propagation Delay Time
(E I to E O , E I to GS)
Propagation Delay Time
(E I to Qm, Dn to GS)
t PL H,
t P HL
Propagation Delay Time
(Dn to Q M )
t T L H,
t T HL
Transition Time
Minimum Output Low (sink) Current
teristics.
Value
Charac-
Typ.
Max.
5
110
220
10
55
110
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
Typical Output High (source) Current Characteristics.
5/15
HCC/HCF4532B
Minimum Output High (source) Current Characteristics.
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 Propagation Delay (Dn to Qm) vs. Load Capacitance.
Typical Transition Time vs. Load Capacitance.
6/15
HCC/HCF4532B
Typical Dynamic Power Dissipation vs. Frequency.
APPLICATIONS
16-LEVEL PRIORITY ENCODER
7/15
HCC/HCF4532B
APPLICATIONS (continued)
0-TO-9 KEYBOARD ENCODER
TRUTH TABLE
Input
Output
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
GS
Q 3’
Q2 ’
Q 1’
Q0
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
8/15
Logic 1 ≡ High
Logic 0 ≡ Low
HCC/HCF4532B
APPLICATIONS (continued)
DIGITAL TO ANALOG CONVERSION
TEST CIRCUITS
Input Leakage Current.
Noise Immunity.
9/15
HCC/HCF4532B
TEST CIRCUITS (continued)
Quiescent Device Current.
10/15
Dynamic Power Dissipation.
HCC/HCF4532B
Plastic DIP16 (0.25) MECHANICAL DATA
mm
DIM.
MIN.
a1
0.51
B
0.77
TYP.
inch
MAX.
MIN.
TYP.
MAX.
0.020
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
Z
3.3
0.130
1.27
0.050
P001C
11/15
HCC/HCF4532B
Ceramic DIP16/1 MECHANICAL DATA
mm
DIM.
MIN.
TYP.
inch
MAX.
MIN.
TYP.
MAX.
A
20
0.787
B
7
0.276
D
E
3.3
0.130
0.38
e3
0.015
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
P
Q
10.3
7.8
8.05
5.08
0.406
0.307
0.317
0.200
P053D
12/15
HCC/HCF4532B
SO16 (Narrow) MECHANICAL DATA
mm
DIM.
MIN.
TYP.
A
a1
inch
MAX.
MIN.
TYP.
1.75
0.1
0.068
0.2
a2
MAX.
0.004
0.007
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
E
5.8
10
0.385
6.2
0.228
0.393
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
S
0.62
0.024
8° (max.)
P013H
13/15
HCC/HCF4532B
PLCC20 MECHANICAL DATA
mm
DIM.
MIN.
TYP.
inch
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
14/15
HCC/HCF4532B
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 ascritical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectonics.
 1994 SGS-THOMSON Microelectronics - All Rights Reserved
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15/15