HCC40147B HCF40147B 10 TO 4 LINE BCD PRIORITY ENCODER
.. . . .. . .. .
ENCODES 10 LINE TO 4 LINE BCD ACTIVE LOW INPUTS AND OUTPUTS STANDARDIZED, SYMMETRICAL OUTPUT CHARACTERIZATION 100 % TESTED FOR QUIESCENT CURRENT AT 20 V 5V, 10V AND 15V PARAMETRIC RATINGS MAXIMUM INPUT CURREENT OF 1 µA AT 18V OVER FULL PACKAGE TEMPERATURE o RANGE; 100 nA AT 18 V AND 25 C NOISE MARGIN (FULL PACKAGE TEMPERATURE RANGE): 1V AT VDD = 5V, 2V AT VDD = 10V, 2.5V AT VDD = 15V
APPLICATIONS: KEYBOARD ENCODING 10 LINE TO BCD ENCODING RANGE SELECTION
EY (Plastic Package)
F (Ceramic Package)
M1 (Micro Package)
C1 (Chip Carrier)
ORDER CODES : HCC40147BF HCF40147BM1 HCF40147BEY HCF40147BC1
PIN CONNECTIONS
DESCRIPTION The HCC/HCF40147B CMOS encoder features priority encoding of the inputs to ensure that only the highest order data line is encoded. Ten data input lines (0-9) are encoded to four line (8, 4, 2, 1) BCD. The highest priority line is line 9. All four output lines are logic 1 (VSS) when all input lines are logic 0. All inputs and outputs are buffered, and each output can drive one TTL Low Power Schottky load. The HCC/HCFF40147 is functionally similar to the T54/T74LS147 if pin 15 is tied low. The HCC/HCF40147B types are supplied in 16 lead plastic or ceramic and plastic micropackage. April 1991
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HCC/HCF40147B ABSOLUTE MAXIMUM RATING Symbol VDD *
Parameter
Value
Unit
-0.5 to +20 -0.5 to +18 -0.5 to VDD + 0.5
V V V
Vi
Supply Voltage: HCC Types HCF Types Input Voltage
II
DC Input Current (any one input)
± 10
mA
Ptot
Total Power Dissipation (per package) Dissipation per Output Transistor for Top = Full Package Temperature Range
200
mW
100
mW
Top
Operating Temperature: HCC Types HCF Types
-55 to +125 -40 to +85
o
Tstg
Storage Temperature
-65 to +150
o
o
C C C
Stresses above those listed under ”Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress ratingonly 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. * All voltage values are referred to VSS pin voltage.
RECOMMENDED OPERATING CONDITIONS Symbol VDD VI Top
Parameter Supply Voltage: HCC Types HCF Types Input Voltage
Value 3 to 18 3 to 15 0 to VDD
Operating Temperature: HCC Types HCF Types
Unit V V V o
-55 to +125 -40 to +85
o
C C
TRUTH TABLE INPUT 0 0
1 0
2 0
3 0
4 0
OUTPUTS 5 0
6 0
7 0
8 0
9 0
D 1
C 1
B 1
A 1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
X
1
0
0
0
0
0
0
0
0
0
0
0
1
X
X
1
0
0
0
0
0
0
0
0
0
1
0
X X
X X
X X
1 X
0 1
0 0
0 0
0 0
0 0
0 0
0 0
0 1
1 0
1 0
X
X
X
X
X
1
0
0
0
0
0
1
0
1
X X
X X
X X
X X
X X
X X
1 X
0 1
0 0
0 0
0 0
1 1
1 1
0 1
X
X
X
X
X
X
X
X
1
0
1
0
0
0
X
X
X
X
X
X
X
X
X
1
1
0
0
1
0 = High Level, 1 = Low Level, X = Don’t Care
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HCC/HCF40147B LOGIC DIAGRAM
3/12
HCC/HCF40147B STATIC ELECTRICAL CHARACTERISTICS (over recommended operating conditions) Test Conditios Symbol IL
ABSOLUTE MAXIMUM RATING. Symbol. Parameter. Value. Unit. VDD *. Supply Voltage: HCC Types. HCF Types. -0.5 to +20. -0.5 to +18. V. V. Vi. Input Voltage.
are RâS type flip-flops, which hold the last input data pre- sented prior to the strobe transition ... Connection Diagram. Top View. Order Number Package Number.
by using the 4 input lines to address the output line passing ... b55 C to a125 C ... 56. Note 1 All typicals are at VCC e 5V TA e 25 C. Note 2 Not more than one ...
mA. IOL. Low Level Output Current. 4. mA. TA. Free Air Operating Temperature b55. 125. C. Electrical Characteristics over recommended operating free air ...
light transmission. We provide ... more resolution at a lower cost than their absolute ... Absolute encoders are used in applica- ... determine if the encoder is turning clockwise ... two-channel quadrature input without further ... To measure distan
Olli Lehtoranta, Erno Salminen, Ari Kulmala, Marko Hännikäinen, and Timo D. Hämäläinen. Tampere University of Technology, Institute of Digital and Computer ...
Max. VCC. Supply Voltage. 4 75. 5. 5 25. V. VIH. High Level Input Voltage. 2. V. VIL. Low Level ... 2 4. 3 7. V. Voltage (BI RBO). IOH e Max. ICEX. High Level Output. VCC e Max VO e 30V .... Deutsch Tel (a49) 0-180-530 85 85. Tsimshatsui ...
MSVU 265 boasts an all-hardware compression chip for real time encoding with advanced audio â all packaged ... MPEG-H HEVC (ISO/IEC 23008-2). · Bit Rate: ...
ABSOLUTE MAXIMUM RATINGS. Symbol. Parameter. Value. Unit. VDD .... stream. The samples represent a succession of CB/Y/CR/Y component values and are latched on the ..... REGISTERS MAPPING AND DESCRIPTION (continued).
Keep your intrusion detection and prevention systems, protocol analyzers, ... For extra uptime protection, Net Optics Taps offer redundant power connections.
Apr 2, 1993 - DATA SHEET. Preliminary ... luminance input signal 1 V nominal without sync ... CVBS. 16 composite PAL or NTSC output, 2 V (p-p) nominal ...
