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參數資料
| 型號： | MC14543BD |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | Single Channel (1.2V) SVS w/ Watchdog and /MR in 5/SOT23 5-SOT-23 -40 to 85 |
| 中文描述： | 4000/14000/40000 SERIES, SEVEN SEGMENT DECODER/DRIVER, CONFIGURABLE OUTPUT, PDSO16 |
| 封裝： | PLASTIC, SOIC-16 |
| 文件頁數： | 1/7頁 |
| 文件大小： | 232K |
| 代理商： | MC14543BD |
MOTOROLA CMOS LOGIC DATA
Motorola, Inc. 1995
1
MC14543B
!# !
!#
" $ !
The MC14543B BCD–to–seven segment latch/decoder/driver is designed
for use with liquid crystal readouts, and is constructed with complementary
MOS (CMOS) enhancement mode devices. The circuit provides the
functions of a 4–bit storage latch and an 8421 BCD–to–seven segment
decoder and driver. The device has the capability to invert the logic levels of
the output combination. The phase (Ph), blanking (BI), and latch disable (LD)
inputs are used to reverse the truth table phase, blank the display, and store
a BCD code, respectively. For liquid crystal (LC) readouts, a square wave is
applied to the Ph input of the circuit and the electrically common backplane
of the display. The outputs of the circuit are connected directly to the
segments of the LC readout. For other types of readouts, such as
light–emitting diode (LED), incandescent, gas discharge, and fluorescent
readouts, connection diagrams are given on this data sheet.
Applications include instrument (e.g., counter, DVM etc.) display driver,
computer/calculator display driver, cockpit display driver, and various clock,
watch, and timer uses.
Latch Storage of Code
Blanking Input
Readout Blanking on All Illegal Input Combinations
Direct LED (Common Anode or Cathode) Driving Capability
Supply Voltage Range = 3.0 V to 18 V
Capable of Driving Two Low–power TTL Loads, One Low–power
Schottky TTL Load or Two HTL Loads Over the Rated Temperature
Range
DC Supply Voltage
VDD
Vin
Iin
TA
PD
Tstg
IOHmax
IOLmax
– 0.5 to + 18
V
Input Voltage, All Inputs
– 0.5 to VDD + 0.5
±
10
V
DC Input Current per Pin
mA
Operating Temperature Range
– 55 to + 125
C
Power Dissipation, per Package
500
mW
Storage Temperature Range
– 65 to + 150
C
Maximum Continuous Output Drive
Current (Source or Sink) per Output
10
mA
Maximum Continuous Output Power*
(Source or Sink) per Output
POHmax
POLmax
70
mW
* POHmax = IOH (VOH – VDD) and POLmax = IOL (VOL – VSS)
* Maximum Ratings are those values beyond which damage to the device may occur.
Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/ C From 65 C To 125 C
Ceramic “L” Packages: – 12 mW/ C From 100 C To 125 C
TRUTH TABLE
Inputs
Outputs
LD BI Ph* D C
B A a b c d e
f
g
Display
X
1
0
X
X
X X 0 0 0 0 0 0 0
Blank
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 0 1 1 1 1 1 1 0
0 1 0 1 1 0 0 0 0
1 0 1 1 0 1 1 0 1
1 1 1 1 1 1 0 0 1
0
1
2
3
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0 0 0 1 1 0 0 1 1
0 1 1 0 1 1 0 1 1
1 0 1 0 1 1 1 1 1
1 1 1 1 1 0 0 0 0
4
5
6
7
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
0 0 1 1 1 1 1 1 1
0 1 1 1 1 1 0 1 1
1 0 0 0 0 0 0 0 0
1 1 0 0 0 0 0 0 0
8
9
Blank
Blank
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0 0 0 0 0 0 0 0 0
0 1 0 0 0 0 0 0 0
1 0 0 0 0 0 0 0 0
1 1 0 0 0 0 0 0 0
Blank
Blank
Blank
Blank
0
0
0
X
X
X X
**
**
Inverse of Output
Combinations
Above
Display
as above
X = Don’t care
= Above Combinations
* = For liquid crystal readouts, apply a square wave to Ph
For common cathode LED readouts, select Ph = 0
For common anode LED readouts, select Ph = 1
** = Depends upon the BCD code previously applied when
LD = 1
SEMICONDUCTOR TECHNICAL DATA
REV 3
1/94
L SUFFIX
CERAMIC
CASE 620
ORDERING INFORMATION
MC14XXXBCP
MC14XXXBCL
MC14XXXBD
TA = – 55
°
to 125
°
C for all packages.
Plastic
Ceramic
SOIC
P SUFFIX
PLASTIC
CASE 648
D SUFFIX
SOIC
CASE 751B
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