HCC40147B Datasheet PDF - STMicroelectronics
| Part Number | HCC40147B | |
| Description | 10 TO 4 LINE BCD PRIORITY ENCODER | |
| Manufacturers | STMicroelectronics | |
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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
RANGE; 100 nA AT 18 V AND 25 oC
NOISE MARGIN (FULL PACKAGE TEMPERA-
TURE 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)
M1
(Micro Package)
F
(Ceramic Package)
C1
(Chip Carrier)
ORDER CODES :
HCC40147BF
HCF40147BM1
HC F 4 0147 BE Y
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
1/12
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HCC/HCF40147B
DYNAMIC ELECTRICAL CHARACTERISTICS (Tamb = 25 oC, CL = 50 pF, RL = 200 KΩ,
typical temperature coefficent for all VDD values is 03 %/oC, all input rise and fall times= 20 ns)
Symbol
Parameter
tPLH Propagation Delay Time
tPHL In Phase Output
tPLH Propagation Delay Time
tPHL Out of Phase Output
tTLH Transition Time
tTHL
CI Input Capacitance
Test Conditions
VDD (V)
5
10
15
5
10
15
5
10
15
Min.
Value
Typ.
450
200
150
425
175
125
100
50
40
5
Max.
900
400
300
850
350
250
200
100
80
7.5
Unit
ns
ns
ns
pF
Typical Output Low (source) Current Charac-
teristics
Minimum Output Low (source) Current Charac-
teristics
Typical Output High (source) Current Charac-
teristics
Minimum Output High (source) Current Charac-
teristics
5/12
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for HCC40147B electronic component. |
| Information | Total 12 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ HCC40147B.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| HCC40147B | The function is 10 TO 4 LINE BCD PRIORITY ENCODER. STMicroelectronics | |
| HCC40147BF | The function is 10 TO 4 LINE BCD PRIORITY ENCODER. STMicroelectronics | |
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