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4511B 반도체 회로 부품 판매점

BCD-to-7 Segment Latch/Decoder/Driver



Fairchild Semiconductor Corp 로고
Fairchild Semiconductor Corp
4511B 데이터시트, 핀배열, 회로
October 1987
Revised April 2002
CD4511BC
BCD-to-7 Segment Latch/Decoder/Driver
General Description
The CD4511BC BCD-to-seven segment latch/decoder/
driver is constructed with complementary MOS (CMOS)
enhancement mode devices and NPN bipolar output driv-
ers in a single monolithic structure. The circuit provides the
functions of a 4-bit storage latch, an 8421 BCD-to-seven
segment decoder, and an output drive capability. Lamp test
(LT), blanking (BI), and latch enable (LE) inputs are used to
test the display, to turn-off or pulse modulate the brightness
of the display, and to store a BCD code, respectively. It can
be used with seven-segment light emitting diodes (LED),
incandescent, fluorescent, gas discharge, or liquid crystal
readouts either directly or indirectly.
Applications include instrument (e.g., counter, DVM, etc.)
display driver, computer/calculator display driver, cockpit
display driver, and various clock, watch, and timer uses.
Features
s Low logic circuit power dissipation
s High current sourcing outputs (up to 25 mA)
s Latch storage of code
s Blanking input
s Lamp test provision
s Readout blanking on all illegal input combinations
s Lamp intensity modulation capability
s Time share (multiplexing) facility
s Equivalent to Motorola MC14511
Ordering Code:
Order Number Package Number
Package Description
CD4511BCWM
M16B
16-Lead Small Outline Intergrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
CD4511BCN
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Connection Diagrams
Segment Identification
Top View
© 2002 Fairchild Semiconductor Corporation DS005991
www.fairchildsemi.com


4511B 데이터시트, 핀배열, 회로
Truth Table
Inputs
Outputs
LE BI LT D C B A a b c d e f g Display
X X 0 XX X X 1 1 11 1 1 1
B
X 0 1 X X XX 0 0 0 0 00 0
01 1 0 0 0 01 1 1 1 1 10
0
0 11 0 0 0 1 01 1 0 0 0 0
1
0 1 10 0 1 0 1 10 1 1 0 1
2
0 1 1 00 1 1 1 1 11 0 0 1
3
0 1 1 0 1 00 0 1 1 0 01 1
4
01 1 0 1 0 11 0 1 1 0 11
5
0 11 0 1 1 0 00 1 1 1 1 1
6
0 1 10 1 1 1 1 11 0 0 0 0
7
0 1 1 10 0 0 1 1 11 1 1 1
8
0 1 1 1 0 01 1 1 1 0 01 1
9
01 1 1 0 1 00 0 0 0 0 00
0 11 1 0 1 1 00 0 0 0 0 0
0 1 11 1 0 0 0 00 0 0 0 0
0 1 1 1 10 1 0 0 0 00 0 0
01 1 1 1 1 00 0 0 0 0 00
0 11 1 1 1 1 00 0 0 0 0 0
1 1 1XXXX
X = Don’t Care
*Depends upon the BCD code applied during the 0 to 1 transition of LE.
*
*
Display
www.fairchildsemi.com
2




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4511B driver

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