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M74HC4543
BCD T O 7 SEGM ENT LATCH/D ECODER/LCD DRIVER
■ HIGH SPEED:
t
= 14ns (TYP.) at VCC = 6V
PD
■ LOW POWER DISSIPATION:
I
= 4µA(MAX.) at TA=25°C
CC
■ HIGH NOISE IMMUNITY:
V
= V
NIH
■ SYMMETRICAL OUTPUT IMPEDANCE:
|I
| = IOL = 4mA (MIN)
OH
■ BALANCED PROPAGATION DELAYS:
t
≅ t
PLH
■ WIDE OPERATING VOLTAGE RANGE:
V
(OPR) = 2V to 6V
CC
■ PIN AND FUNCTION COMPATIBLE WITH
= 28 % VCC (MIN.)
NIL
PHL
74 SERIES 4543
DESCRIPTION
The M74HC4543 is an high speed CMOS
BCD-TO-7 SEGMENT DECODER WITH LCD
DRIVER fabricated with silicon gate C
2
MOS
technology.
This device consists of BCD-TO-7 segment
decoder with a BCD input latch and a 7-s egment
driver for a liquid crystal display (LCD). When any
illegal BCD input signal is applied or input BI is
held high, the display is blanked. When driving
TSSOPDIP SOP
ORDER CODES
PACKAGE TUBE T & R
DIP M74HC4543B1R
SOP M74HC4543M1R M74HC4543RM13TR
TSSOP M74HC4543TTR
LCDs, a commo n square wave signal should be
applied not only to the PH input of this device but
also to the electrically common backplan e of the
display. For other types of readouts, such as
light-emitting diode (LED), some additional
drivers, such as a transistor array is required. All
inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
1/10July 2001
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M74HC4543
INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
PIN No SYMBOL NAME AND FUNCTION
1 LD Latch Disable Input
5, 3, 2, 4 A to D Address (Data) Inputs
6 PH Phase Input (Active
7 BI Blanking Input (Active
9, 10, 11, 12,
13, 15, 14
8 GND Ground (0V)
16 V
TRUTH TABLE
a to g Segment Outputs
CC
(Active HIGH)
HIGH)
HIGH)
Positive Supply Voltage
INPUT OUTPUT
DISPLAY MODE
LD BI PH D C B A a b c d e f g
X H L X X X X L L L L L L L BLANK
HLLLLLLHHHHHHL 0
HLLLLLHLHHLLLL 1
HLLLLHLHHLHHLH 2
HLLL LHHHHHHL LH 3
HLLLHLLLHHLLHH 4
HLLLHLHHLHHLHH 5
HLLLHHLHLHHHHH 6
HLLLHHHHHHLLLL 7
HLLHLLLHHHHHHH 8
HLLHLLHHHHHLHH 9
H L L H L H X L L L L L L L BLANK
H L L H H X X L L L L L L L BLANK
L L L X X X X ##### #####
↑↑H ↑ INVERSE OF ABOVE OUTPUT LEVEL
X : Don’t Care
↑ : Same as above com bi nations
### : Depends upon the BC D code previously applied when LD =’H’
DISPLAY AS
ABOVE
2/10
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LOGIC DIAGRAM
M74HC4543
This log i c diagram has not be used to est i m at e propagation delays
DISPLAY MODE
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
V
V
I
I
OK
I
I
or I
CC
P
T
T
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
(*) 500mW at 65
Supply Voltage
CC
DC Input Voltage -0.5 to VCC + 0.5
I
DC Output Voltage -0.5 to VCC + 0.5
O
DC Input Diode Current
IK
DC Output Diode Current
DC Output Current
O
DC VCC or Ground Current
GND
Power Dissipation
D
Storage Temperature
stg
Lead Temperature (10 sec)
L
°C; derate to 300mW by 10mW/°C from 65°C to 85°C
-0.5 to +7 V
V
V
± 20 mA
± 20 mA
± 25 mA
± 50 mA
500(*) mW
-65 to +150 °C
300 °C
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M74HC4543
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Value Unit
V
V
V
T
t
r
DC SPECIFICATIONS
Symbol Parameter
V
IH
V
IL
V
OH
V
OL
I
I
I
CC
Supply Voltage
CC
Input Voltage 0 to V
I
Output Voltage 0 to V
O
Operating Temperature
op
Input Rise and Fall Time VCC = 2.0V
, t
f
V
V
CC
CC
= 4.5V
= 6.0V
Test Condition Value
= 25°C
T
A
Min. Typ. Max. Min. Max. Min. Max.
High Level Input
V
CC
(V)
2.0 1.5 1.5 1.5
Voltage
6.0 4.2 4.2 4.2
Low Level Input
2.0 0.5 0.5 0.5
Voltage
6.0 1.8 1.8 1.8
High Level Output
Voltage
Low Level Output
Voltage
Input Leakage
Current
Quiescent Supply
Current
2.0
4.5
6.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
6.0
6.0
IO=-20 µA
I
=-20 µA
O
I
=-20 µA
O
I
=-4.0 mA
O
I
=-5.2 mA
O
IO=20 µA
I
=20 µA
O
I
=20 µA
O
I
=4.0 mA
O
I
=5.2 mA
O
= VCC or GND
V
I
= VCC or GND
V
I
1.9 2.0 1.9 1.9
4.4 4.5 4.4 4.4
5.9 6.0 5.9 5.9
4.18 4.31 4.13 4.10
5.68 5.8 5.63 5.60
0.0 0.1 0.1 0.1
0.0 0.1 0.1 0.1
0.0 0.1 0.1 0.1
0.17 0.26 0.37 0.40
0.18 0.26 0.37 0.40
± 0.1 ± 1 ± 1 µA
44080µA
2 to 6 V
CC
CC
-55 to 125 °C
0 to 1000 ns
0 to 500 ns
0 to 400 ns
-40 to 85°C -55 to 125°C
V
V
Unit
V4.5 3.15 3.15 3.15
V4.5 1.35 1.35 1.35
V
V
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AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Test Condition Value
T
Symbol Parameter
t
TLH tTHL
t
PLH tPHL
t
PLH tPHL
t
PLH tPHL
t
PLH tPHL
t
W(H)
Output Transition
Time
Propagation Delay
Time (BCD - OUT)
Propagation Delay
Time (BI - OUT)
Propagation Delay
Time (PH - OUT)
Propagation Delay
Time (LD - OUT)
Minimum Pulse
Width (LD)
Minimum Set Up
t
s
Time
Minimum Hold
t
h
Time
V
CC
(V)
2.0 30 75 95 110
6.0 7131619
2.0 160 300 375 450
6.0 30 51 64 76
2.0 80 175 220 265
6.0 17 30 37 45
2.0 58 130 165 195
6.0 14 22 28 33
2.0 130 265 335 400
6.0 16 45 56 68
2.0 30 75 95 110
6.0 7132619
2.0 15 75 95 110
6.0 3131619
2.0 0 0 0
6.0 0 0 0
= 25°C
A
Min. Typ. Max. Min. Max. Min. Max.
M74HC4543
-40 to 85°C -55 to 125°C
Unit
ns4.5 8151922
ns4.5 40 60 75 90
ns4.5 23 35 44 53
ns4.5 17 26 33 39
ns4.5 35 53 66 80
ns4.5 8152922
ns4.5 4151922
ns4.5 0 0 0
CAPACITIVE CHARACTERISTICS
Test Condition Value
T
Symbol Parameter
V
CC
(V)
C
C
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (R ef er to Test Circui t). Averag e operating current can be obtained by the following equation. I
FLIP/FLOP)
Input Capacitance
IN
Power Dissipation
PD
Capacitance (note 1)5.0 115 pF
5.0 5101010pF
= 25°C
A
Min. Typ. Max. Min. Max. Min. Max.
-40 to 85°C -55 to 125°C
= CPD x VCC x fIN + ICC/2 (per
CC(opr)
Unit
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M74HC4543
TEST CIRCUIT
CL = 50pF or equivalent (includes jig and p robe capacit ance)
R
= Z
of pulse generator (typically 50Ω)
T
OUT
WAVEFORM : PROPAGATION DELAY, SETUP AND HOLD TIMES, MINIMUM PULSE WIDTH (LD)
(f=1MHz; 50% duty cycle)
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M74HC4543
Plastic DIP-16 (0.25) MECHANICAL DATA
mm. inch
DIM.
MIN. TYP MAX. MIN. TYP. MAX.
a1 0.51 0.020
B 0.77 1.65 0.030 0.065
b 0.5 0.020
b1 0.25 0.010
D 20 0.787
E 8.5 0.335
e 2.54 0.100
e3 17.78 0.700
F 7.1 0.280
I 5.1 0.201
L 3.3 0.130
Z 1.27 0.050
P001C
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M74HC4543
SO-16 MECHANICAL DATA
DIM.
A 1.75 0.068
a1 0.1 0.2 0.003 0.007
a2 1.65 0.064
b 0.35 0.46 0.013 0.018
b1 0.19 0.25 0.007 0.010
C 0.5 0.019
c1 45° (typ.)
D 9.8 10 0.385 0.393
E 5.8 6.2 0.228 0.244
e 1.27 0.050
e3 8.89 0.350
F 3.8 4.0 0.149 0.157
G 4.6 5.3 0.181 0.208
L 0.5 1.27 0.019 0.050
M 0.62 0.024
S8° (max.)
MIN. TYP MAX. MIN. TYP. MAX.
mm. inch
8/10
PO13H
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M74HC4543
TSSOP16 MECHANICAL DATA
mm. inch
DIM.
MIN. TYP MAX. MIN. TYP. MAX.
A 1.2 0.047
A1 0.05 0.15 0.002 0.004 0.006
A2 0.8 1 1.05 0.031 0.039 0.041
b 0.19 0.30 0.007 0.012
c 0.09 0.20 0.004 0.0089
D 4.9 5 5.1 0.193 0.197 0.201
E 6.2 6.4 6.6 0.244 0.252 0.260
E1 4.3 4.4 4.48 0.169 0.173 0.176
e 0.65 BSC 0.0256 BSC
K0° 8°0° 8°
L 0.45 0.60 0.75 0.018 0.024 0.030
A2
A
A1
b
e
c
K
L
E
D
E1
PIN 1 IDENTIFICATION
1
0080338D
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M74HC4543
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mentioned in this publication ar e subject to change without notice. This publication supersedes and replaces all information
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systems without express written approval of STMicroelectronics.
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