M74HC4543 Datasheet PDF | STMicroelectronics

STMicroelectronics M74HC4543

The M74HC4543 is an high speed CMOS b BCD-TO-7 SEGMENT DECODER WITH LCD O DRIVER fabricated with silicon gate C2MOS - technology. When any u illegal BCD input signal is applied or input BI is d held high, the display is blanked. When driving DIP SOP TSSOP ORDER CODES PACKAGE TUBE T&R DIP SOP TSSOP M74HC4543B1R M74HC4543M1R M74HC4543RM13TR M74HC4543TTR 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.

Part No.	M74HC4543
Datasheet	M74HC4543 Download
Manufacturer	STMicroelectronics
Description	BCD TO 7 SEGMENT LATCH/DECODER/LCD DRIVER
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DESCRIPTION

s t(s) This device consists of BCD-TO-7 segment decoder with a BCD input latch and a 7-segment c driver for a liquid crystal display (LCD). 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. Obsolete Pro PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 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 A to D Address (Data) Inputs 6 PH Phase Input (Active HIGH) 7 BI Blanking Input (Active HIGH) 9, 10, 11, 12, a to g Segment Outputs 13, 15, 14 8 GND Ground (0V) ) 16 VCC Positive Supply Voltage ct(s TRUTH TABLE du INPUT OUTPUT ro LD BI PH D C B A a b c d e f g P X H L X X X X L L L L L L L te H L L L L L L HHHH HH L le H L L L L L H L HH L L L L so H L L L L H L HH L H H L H b H L L L L H HHHHH L L H O...