MC14543BCL Motorola, MC14543BCL Datasheet

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MC14543BCL

Manufacturer Part Number
MC14543BCL
Description
BCD-to-seven segment latch/decoder/driver for liquid crystals
Manufacturer
Motorola
Datasheet

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MC14543BCL
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
BCD-to-Seven Segment
Latch/Decoder/Driver for
Liquid Crystals
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.
computer/calculator display driver, cockpit display driver, and various clock,
watch, and timer uses.
* P OHmax = I OH (V OH – V DD ) and P OLmax = I OL (V OL – V SS )
* Maximum Ratings are those values beyond which damage to the device may occur.
†Temperature Derating:
REV 3
1/94
MAXIMUM RATINGS*
DC Supply Voltage
Input Voltage, All Inputs
DC Input Current per Pin
Operating Temperature Range
Power Dissipation, per Package†
Storage Temperature Range
Maximum Continuous Output Drive
Current (Source or Sink) per Output
Maximum Continuous Output Power*
(Source or Sink) per Output
MOTOROLA CMOS LOGIC DATA
The MC14543B BCD–to–seven segment latch/decoder/driver is designed
Applications include instrument (e.g., counter, DVM etc.) display driver,
Motorola, Inc. 1995
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
Pin–for–Pin Replacement for CD4056A (with Pin 7 Tied to V SS ).
Chip Complexity: 207 FETs or 52 Equivalent Gates
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
Rating
(Voltages referenced to V SS )
P OHmax
P OLmax
I OHmax
Symbol
I OLmax
V DD
T stg
V in
P D
T A
I in
– 0.5 to V DD + 0.5
– 55 to + 125
– 65 to + 150
– 0.5 to + 18
Value
500
10
70
10
Unit
mW
mW
mA
mA
_ C
_ C
V
V
** = Depends upon the BCD code previously applied when
X = Don’t care
† = Above Combinations
* = For liquid crystal readouts, apply a square wave to Ph
LD BI Ph* D C
X
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
T A = – 55 to 125 C for all packages.
For common cathode LED readouts, select Ph = 0
For common anode LED readouts, select Ph = 1
LD = 1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ORDERING INFORMATION
MC14XXXBCP
MC14XXXBCL
MC14XXXBD
MC14543B
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Inputs
X X
X X
0 0
0 0
0 0
0 0
0 1
0 1
0 1
0 1
1 0
1 0
1 0
1 0
1 1
1 1
1 1
1 1
TRUTH TABLE
B A a b c d e f g
X X 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 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
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
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
X X
Inverse of Output
Combinations
Above
Outputs
CASE 751B
CERAMIC
CASE 620
CASE 648
D SUFFIX
L SUFFIX
P SUFFIX
**
PLASTIC
Plastic
Ceramic
SOIC
SOIC
MC14543B
as above
Display
Display
Blank
Blank
Blank
Blank
Blank
Blank
Blank
**
0
1
2
3
4
5
6
7
8
9
1

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MC14543BCL Summary of contents

Page 1

... Maximum Ratings are those values beyond which damage to the device may occur. †Temperature Derating: Plastic “P and D/DW” Packages: – 7.0 mW From 125 _ C Ceramic “L” Packages: – From 100 125 _ C REV 3 1/94 MOTOROLA CMOS LOGIC DATA Motorola, Inc. 1995 Symbol Value Unit V DD – ...

Page 2

... Adc 5.0 7.5 — — pF 0.005 5.0 — 150 Adc 0.010 10 — 300 0.015 20 — 600 Adc MOTOROLA CMOS LOGIC DATA ...

Page 3

... PHL = (1.7 ns/pF 420 ns t PHL = (0.66 ns/pF 172 ns t PHL = (0.5 ns/pF 130 ns Setup Time Hold Time Latch Disable Pulse Width (Strobing Data) * The formulas given are for the typical characteristics only PIN PIN MOTOROLA CMOS LOGIC DATA ( pF Symbol TLH 5 THL 5 PLH 5.0 ...

Page 4

... Inputs D, Ph, and BI low, and Inputs A, B, and LD high PHL g (b) Inputs D, Ph, and BI low, and Inputs A and B high. 90 (c) Data DCBA strobed into latches Figure 4. Dynamic Signal Waveforms Vdc Vdc P OLmax = 70 mWdc Vdc 4.0 8 Characteristics 90% 50% 10 PLH V OH 90% 50% 10 THL t TLH 50% 10 50 MOTOROLA CMOS LOGIC DATA ...

Page 5

... NOTE: Bipolar transistors may be added for gain (for V DD PIN ASSIGNMENT MOTOROLA CMOS LOGIC DATA COMMON BACKPLANE SQUARE WAVE ( COMMON ANODE LED MC14543B OUTPUT out 10 mA). CONNECTIONS TO SEGMENTS INCANDESCENT READOUT APPROPRIATE VOLTAGE MC14543B OUTPUT GAS DISCHARGE READOUT APPROPRIATE VOLTAGE MC14543B OUTPUT ...

Page 6

... C 0.145 0.175 3.69 4.44 D 0.015 0.021 0.39 0.53 F 0.040 0.70 1.02 1.77 G 0.100 BSC 2.54 BSC H 0.050 BSC 1.27 BSC J 0.008 0.015 0.21 0.38 K 0.110 0.130 2.80 3.30 L 0.295 0.305 7.50 7. 0.020 0.040 0.51 1.01 MOTOROLA CMOS LOGIC DATA ...

Page 7

... Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur ...

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