HCC4532BF [STMICROELECTRONICS]
8-BIT PRIORITY ENCODER; 8位优先编码器
| 型号： | HCC4532BF |
| 厂家： | 
ST |
| 描述： | 8-BIT PRIORITY ENCODER |
| 文件： | 总15页 (文件大小：314K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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 OF100 nA AT 18V AND 25°C
FOR HCC DEVICE
100% TESTED FOR QUIESCENT CURRENT
MEETS ALLREQUIREMENTS OF JEDECTEN-
TATIVE STANDARD No 13A, ”STANDARD
SPECIFICATIONS FOR DESCRIPTION OF ”B”
SERIES CMOS DEVICES”
.
.
.
EY
F
(Plastic Package)
(Ceramic Frit Seal Package)
.
.
.
.
M1
C1
(Micro Package)
(Plastic Chip Carrier)
ORDER CODES :
HCC4532BF
HCF4532BEY
HCF4532BM1
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 islow. 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
inputsare present. The enable-out (EO) ishigh when
no priority inputs are present. If anyone input ishigh,
EO is low and all cascaded lower-order stages are
disabled.
June 1989
1/15
HCC/HCF4532B
FUNCTIONAL DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VDD
*
Supply Voltage : HCC Types
HCF Types
– 0.5 to + 20
– 0.5 to + 18
V
V
Vi
II
Input Voltage
– 0.5 to VDD + 0.5
V
DC Input Current (any one input)
± 10
mA
mW
Pt ot
Total Power Dissipation (per package)
Dissipation per Output Transistor
200
for Top = Full Package-temperature Range
100
mW
To p
Tstg
Operating Temperature : HCC Types
HCF Types
– 55 to + 125
– 40 to + 85
°C
°C
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 sec-
tions of this specification is not implied. Exposure to absolute maximum rating conditions for external periods may affect device
reliability.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Supply Voltage : HCC Types
HCF Types
Value
Unit
VDD
3 to 18
3 to 15
V
V
VI
Input Voltage
0 to VDD
V
Top
Operating Temperature : HCC Types
HCF Types
– 55 to + 125
– 40 to + 85
°C
°C
2/15
HCC/HCF4532B
LOGIC DIAGRAM
TRUTH TABLE
Input
D4
Output
E I
D7
D6
D5
D3
D2
D1
D0
GS
Q 2
Q 1
Q 0
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
Value
Symbol
Parameter
Unit
VI
VO
|IO
|
V D D
T Lo w
*
25°C
T High*
(V)
(V)
(µA) (V)
Min. Max. Min. Typ. Max. Min. Max.
IL
Quiescent
Current
0/ 5
0/10
0/15
0/20
0/ 5
0/10
0/15
0/ 5
0/10
0/15
5/0
5
5
10
20
100
20
40
80
0.04
0.04
0.04
5
150
300
600
3000
150
300
600
10
15
20
5
10
20
HCC
Types
µA
0.08 100
0.04
0.04
0.04
20
40
80
HCF
Types
10
15
VO H
VO L
VIH
Output High
Voltage
< 1
< 1
< 1
< 1
< 1
< 1
5
4.95
4.95
9.95
4.95
9.95
V
V
10 9.95
15 14.95
14.95
14.95
Output Low
Voltage
5
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
10/0
15/0
10
15
Input High
Voltage
0.5/4.5 < 1
1/9 < 1
5
10
15
5
3.5
7
3.5
7
3.5
7
V
V
1.5/13.5 < 1
4.5/0.5 < 1
11
11
11
VIL
Input Low
Voltage
1.5
3
1.5
3
1.5
3
9/1
< 1
10
15
5
13.5/1.5 < 1
4
4
4
IOH
Output
Drive
Current
0/ 5
0/ 5
0/10
0/15
0/ 5
0/ 5
0/10
0/15
0/ 5
0/10
0/15
0/ 5
0/10
0/15
2.5
4.6
9.5
13.5
2.5
4.6
9.5
13.5
0.4
0.5
1.5
0.4
0.5
1.5
– 2
– 1.6 – 3.2
– 0.51 – 1
– 1.3 – 2.6
– 3.4 – 6.8
– 1.36 – 3.2
– 0.44 – 1
– 1.1 – 2.6
– 3.0 – 6.8
– 1.15
– 0.36
– 0.9
– 2.4
– 1.1
– 0.36
– 0.9
– 2.4
0.36
0.9
5
– 0.64
HCC
Types
10 – 1.6
15 – 4.2
mA
5
5
– 1.53
– 0.52
HCF
Types
10 – 1.3
15 – 3.6
IOL
Output
Sink
Current
5
0.64
1.6
0.51
1.3
1
HCC
Types
10
15
5
2.6
6.8
1
4.2
3.4
2.4
mA
0.52
1.3
0.44
1.1
0.36
0.9
HCF
Types
10
15
2.6
6.8
3.6
3.0
2.4
I
IH, IIL Input
HCC
Types
0/18
0/15
± 0.1
± 0.3
±10–5 ± 0.1
± 1
± 1
18
15
Leakage
Current
Any Input
Any Input
µA
HCF
Types
±10–5 ± 0.3
CI
Input Capacitance
5
7.5
pF
* TLow = – 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
HCC/HCF4532B
DYNAMIC ELECTRICAL CHARACTERISTICS (Tamb = 25°C, CL = 50pF, RL = 200kΩ,
typical temperature coefficient for all VDD values is 0.3%/°C, all input rise and fall times = 20ns)
Test Conditions
Value
Symbol
Parameter
Unit
V DD (V) Min. Typ. Max.
tPLH
tP HL
,
Propagation Delay Time
(EI to EO , EI to GS)
5
110
55
220
110
85
ns
10
15
5
45
tPLH
tP HL
,
Propagation Delay Time
(EI to Qm, Dn to GS)
170
85
340
170
125
440
220
160
200
100
80
ns
ns
ns
10
15
5
65
tPLH
tP HL
,
Propagation Delay Time
(Dn to QM)
220
110
85
10
15
5
tTLH
tTHL
,
Transition Time
100
50
10
15
40
Minimum Output Low (sink) Current Charac-
teristics.
Typical Output High (source) Current Charac-
teristics.
5/15
HCC/HCF4532B
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 (E to GS, E to E ) vs.
I I O
Load Capacitance.
Typical Propagation Delay (Dn to Qm) vs. Load Ca-
pacitance.
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
Q2’
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
GS
Q3’
Q1’ 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
8/15
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.
Dynamic Power Dissipation.
10/15
HCC/HCF4532B
Plastic DIP16 (0.25) MECHANICAL DATA
mm
inch
DIM.
MIN.
0.51
0.77
TYP.
MAX.
MIN.
0.020
0.030
TYP.
MAX.
a1
B
b
1.65
0.065
0.5
0.020
0.010
b1
D
E
e
0.25
20
0.787
8.5
2.54
17.78
0.335
0.100
0.700
e3
F
7.1
5.1
0.280
0.201
I
L
3.3
0.130
Z
1.27
0.050
P001C
11/15
HCC/HCF4532B
Ceramic DIP16/1 MECHANICAL DATA
mm
inch
TYP.
DIM.
MIN.
TYP.
MAX.
20
MIN.
MAX.
0.787
0.276
A
B
7
D
E
3.3
0.130
0.700
0.38
0.015
e3
F
17.78
2.29
0.4
2.79
0.55
1.52
0.31
1.27
10.3
8.05
5.08
0.090
0.016
0.046
0.009
0.020
0.110
0.022
0.060
0.012
0.050
0.406
0.317
0.200
G
H
L
1.17
0.22
0.51
M
N
P
7.8
0.307
Q
P053D
12/15
HCC/HCF4532B
SO16 (Narrow) MECHANICAL DATA
mm
inch
DIM.
MIN.
TYP.
MAX.
1.75
0.2
MIN.
TYP.
MAX.
0.068
0.007
0.064
0.018
0.010
A
a1
a2
b
0.1
0.004
1.65
0.46
0.25
0.35
0.19
0.013
0.007
b1
C
0.5
0.019
c1
D
45° (typ.)
9.8
5.8
10
0.385
0.228
0.393
0.244
E
6.2
e
1.27
8.89
0.050
0.350
e3
F
3.8
4.6
0.5
4.0
5.3
0.149
0.181
0.019
0.157
0.208
0.050
0.024
G
L
1.27
0.62
M
S
8° (max.)
P013H
13/15
HCC/HCF4532B
PLCC20 MECHANICAL DATA
mm
inch
TYP.
DIM.
MIN.
9.78
8.89
4.2
TYP.
MAX.
10.03
9.04
MIN.
0.385
0.350
0.165
MAX.
0.395
0.356
0.180
A
B
D
4.57
d1
d2
E
2.54
0.56
0.100
0.022
7.37
8.38
0.290
0.330
0.004
e
1.27
5.08
0.38
0.050
0.200
0.015
e3
F
G
0.101
M
M1
1.27
1.14
0.050
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. Specificationsmentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronicsproductsare notauthorized foruse ascritical componentsin 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
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15/15
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