ST M74HC4543 datasheet
Contents
1. M74HC4543 BCD TO 7 SEGMENT LATCH DECODER LCD DRIVER HIGH SPEED tpp 1405 TYP at Voc 6V LOW POWER DISSIPATION Icc 4uA MAX at 25 HIGH NOISE IMMUNITY 28 Vec MIN SYMMETRICAL OUTPUT IMPEDANCE 4mA MIN BALANCED PROPAGATION DELAYS tPLH WIDE OPERATING VOLTAGE RANGE OPR 2V to 6V m PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 4543 DESCRIPTION The M74HC4543 is an high speed CMOS BCD TO 7 SEGMENT DECODER WITH LCD DRIVER fabricated with silicon gate 2 technology This device consists of BCD TO 7 segment decoder with a BCD input latch and a 7 segment driver for a liquid crystal display LCD When any illegal BCD input signal is applied or input is held high the display is blanked When driving PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 ORDER CODES TUBE DP O O SOP 7950 LCDs a common square wave signal should be applied not only to the PH input of this device but also to the electrically common backplane 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 T amp R BCD 7SEG p 9 D 1 D 2 D 4 LC121302. ns 6 0 16 45 56 68 tw Minimum Pulse 2 0 30 75 95 110 Width LD 4 5 8 15 29 22 ns 6 0 7 13 26 19 ts Minimum Set Up 2 0 15 75 95 110 Time 4 5 4 15 19 22 ns 6 0 3 13 16 19 2 0 0 0 0 4 5 0 0 0 ns 6 0 0 0 0 CAPACITIVE CHARACTERISTICS Test Condition Value Symbol Parameter 25 C 40 to 85 C 55 to 125 C Unit V Min Typ Max Min Max Min Max Input Capacitance 5 0 5 10 10 10 pF Cpp Power Dissipation Capacitance note 5 0 115 pF 1 1 Cpp is defined as the value of the IC s internal equivalent capacitance which is calculated from the operating current consumption without load Refer to Test Circuit Average operating current can be obtained by the following equation lcc op X Vcc X fin lcc 2 FLIP FLOP 4 5 10 M74HC4543 TEST CIRCUIT SC12220 C 50 or equivalent includes jig and probe capacitance Zour of pulse generator typically 500 WAVEFORM PROPAGATION DELAY SETUP AND HOLD TIMES MINIMUM PULSE WIDTH LD f 1MHz 50 duty cycle v 0 j Ec PHASE 50 is tron trae LO 5 10222 6 10 Plastic DIP 16 0 25 MECHANICAL DATA M74HC4543 mm inch DIM MIN TYP MIN TYP MAX a1 0 51 0 020 B 0 77 1 65
3. 0 030 0 065 E 8 5 0 335 e 2 54 0 100 e3 17 78 0 700 F 7 1 0 280 2 1 27 0 050 P001C 710 M74HC4543 SO 16 MECHANICAL DATA 8 10 mm inch MIN 2 1 65 0 064 0 5 0 019 c1 45 typ D 9 8 10 0 385 0 393 5 8 6 2 0 228 0 244 e 1 27 0 050 G 4 6 5 3 0 181 0 208 0 62 0 024 5 8 max L G M cl 5 PO13H 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 1 05 0 031 0 039 0 041 b 0 19 umm 0 30 0 007 0 012 oof 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 K 0 8 0 8 L 0 45 0 60 0 75 0 018 0 024 0 030 SARA n PIN 1 IDENTIFICATION r 0080338D 9 10 M74HC4543 Information furnished is believed to be accurate and reliable However STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics Specifications mentioned in this publication are subject to change without notice This publication supersedes and r
4. 1 10 M74HC4543 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 1 LD Latch Disable Input Active HIGH 5 3 2 4 Ato D Address Data Inputs OUTPUT 6 PH Phase Input Active HIGH 7 BI Blanking Input Active HIGH 9 10 11 12 atog Segment Outputs 13 15 14 Scoseso 8 GND Ground 16 Supply Voltage TRUTH TABLE INPUT OUTPUT DISPLAY MODE LD D C B A a b f g X H L X X X X L L L L L L L BLANK H L L L L L L H H H H H H L 0 H L L L L L H L H H L L L L 1 H L L L L H L H H L H H L H 2 H L L L L H H H H H H L L H 3 H L L L H L L L H H L L H H 4 H L L L H L H H L H H L H H 5 H L L L H H L H L H H H H H 6 H L L L H H H H H H L L L L 7 H L L H L L L H H H H H H H 8 H L L H L L H H H H H L H H 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 THHHHE HHHHH T H T INVERSE OF ABOVE OUTPUT LEVEL pte X Don t Care Same as above combinations Depends upon the BCD code previously applied when LD 2 10 M74HC4543 LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays DISPLAY MODE 2 3 12 13 14 15 1 4 5 6 7 8 9 10 15 7 SEGMEN
5. 2 0 0 5 0 5 0 5 Voltage 4 5 1 35 1 35 1 35 V 6 0 1 8 1 8 1 8 High Level Output 2 0 10 lt 20 uA 1 9 2 0 1 9 1 9 Voltage 45 102220 pA 44 45 4 4 4 4 6 0 lo 20 uA 59 6 0 5 9 5 9 V 4 5 4 0 mA 4 18 4 31 4 13 4 10 6 0 10 5 2 mA 5 68 5 8 5 63 5 60 Vo Low Level Output 2 0 10 20 uA 0 0 0 1 0 1 0 1 Voltage 45 lo 20 pA 0 0 0 1 0 1 0 1 6 0 10 20 uA 0 0 0 1 0 1 0 1 V 4 5 10 lt 4 0 mA 0 17 0 26 0 37 0 40 6 0 5 2 mA 0 18 0 26 0 37 0 40 A ae 6 0 Vi Voc or GND 0 1 1 t1 pA ii e mesupPly 6 0 Vi Voc or GND 4 40 80 pA 4 10 M74HC4543 AC ELECTRICAL CHARACTERISTICS C 50 pF Input t t 6ns Test Condition Value Symbol Parameter 25 C 40 85 55 125 Unit V Min Typ Max Min Max Min Max Output Transition 2 0 30 75 95 110 Time 4 5 8 15 19 22 ns 6 0 7 13 16 19 Propagation Delay 2 0 160 300 375 450 Time BCD OUT 45 40 60 75 90 ns 6 0 30 51 64 76 Propagation Delay 2 0 80 175 220 265 Time BI OUT 4 5 23 35 44 53 ns 6 0 17 30 37 45 Propagation Delay 2 0 58 130 165 195 Time PH OUT 4 5 17 26 33 39 ns 6 0 14 22 28 33 tpLH Propagation Delay 2 0 130 265 335 400 Time LD OUT 4 5 35 53 66 80
6. T 5 10223 DISPLAY ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit Voc Supply Voltage 0 5 to 7 V Vi DC Input Voltage 0 5 to Vcc 0 5 V Vo DC Output Voltage 0 5 to Voc 0 5 V lik DC Input Diode Current 20 mA lox DC Output Diode Current 20 lo DC Output Current t25 mA Icc or lanp DC Vec or Ground Current 50 mA Pp Power Dissipation 500 mW Tstg Storage Temperature 65 to 4150 C TL Lead Temperature 10 sec 300 C 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 C derate to 300mW by 10mW C from 65 C to 85 C ky 3 10 M74HC4543 RECOMMENDED OPERATING CONDITIONS Symbol Parameter Value Unit Voc Supply Voltage 2106 V Vi Input Voltage 0 to Vcc V Vo Output Voltage 0 to V Top Operating Temperature 55 to 125 C Input Rise and Fall Time Voc 2 0 0 to 1000 ns ty Voc 4 5V 0 to 500 ns Voc 6 0V 0 to 400 ns DC SPECIFICATIONS Test Condition Value Symbol Parameter 25 40 to 85 C 55 to 125 C Unit V Min Typ Max Min Max Min Max High Level Input 2 0 1 5 1 5 1 5 Voltage 4 5 3 15 345 3 15 V 6 0 4 2 4 2 4 2 Low Level Input
7. eplaces all information previously supplied STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics The ST logo is a registered trademark of STMicroelectronics 2001 STMicroelectronics Printed in Italy Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia Brazil China Finland France Germany Hong Kong India Italy Japan Malaysia Malta Morocco Singapore Spain Sweden Switzerland United Kingdom http www st com 10 10 ky
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ST M74HC4543 datasheet