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CD74HC4543 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. CD74HC4543
Description  High-Speed CMOS Logic BCD to 7-Segment Latch/Decoder/Driver for LCDs
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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CD74HC4543 Datasheet(HTML) 1 Page - Texas Instruments

 
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Data sheet acquired from Harris Semiconductor
SCHS217B
Features
• Input Latches for BCD Code Storage
• Blanking Capability
• Phase Input for Complementing Outputs
• Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
• Wide Operating Temperature Range . . . -55oC to 125oC
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL
Logic ICs
• HC Types
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC
at VCC = 5V
Description
The CD74HC4543 high-speed silicon-gate device is a BCD
to 7-segment latch/decoder/driver designed primarily for
directly driving liquid-crystal displays. It has an active-high
disable input (LD), an active-high blanking input (BI) and a
phase input (PH) to which a square wave is applied for
liquid-crystal applications. This square wave also is applied
to the backplane of the liquid-crystal display.
This device also can be used, in conjunction with current
amplifying
devices,
for
driving
LEDs,
incandescent,
fluorescent,
and
gas-discharge
displays.
For
these
applications the phase input provides a means to obtain
active-high or active-low segment outputs. (See the Function
Table.)
Pinout
CD74HC4543
(PDIP)
TOP VIEW
Ordering Information
PART NUMBER
TEMP. RANGE
(oC)
PACKAGE
CD74HC4543E
-55 to 125
16 Ld PDIP
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
LD
D2
D1
D3
D0
PH
GND
BI
VCC
g
e
d
c
b
a
f
7-SEGMENT
OUTPUTS
BCD
INPUTS
February 1998 - Revised July 2003
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
© 2003, Texas Instruments Incorporated
CD74HC4543
High-Speed CMOS Logic BCD to 7-Segment
Latch/Decoder/Driver for LCDs
[ /Title
(CD74
HC454
3)
/Sub-
ject
(High-
Speed
CMOS
Logic
BCD-
to-7


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