M74HC4543TTR BCD TO 7 SEGMENT LATCH/DECODER/LCD DRIVER

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1 BCD TO 7 SEGMENT LATCH/DECODER/LCD DRIVER HIGH SPEED: t PD = 14 (TYP.) at V CC = 6V LOW POWER DISSIPATION: I CC = 4µA(MAX.) at T A =25 C HIGH NOISE IMMUNITY: V NIH = V NIL = 28 % V CC (MIN.) SYMMETRICAL OUTPUT IMPEDANCE: I OH = I OL = 4mA (MIN) BALANCED PROPAGATION DELAYS: t PLH t PHL WIDE OPERATING VOLTAGE RANGE: V CC (OPR) = 2V to 6V 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 C 2 MOS technology. This device coists 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 BI is held high, the display is blanked. When driving DIP SOP TSSOP ORDER CODES PACKAGE TUBE T & R DIP M74HC4543B1R SOP M74HC4543M1R M74HC4543RM13TR TSSOP 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. For other types of readouts, such as light-emitting diode (LED), some additional drivers, such as a traistor array is required. All inputs are equipped with protection circuits agait static discharge and traient excess voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS July /10

2 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 V CC Positive Supply Voltage TRUTH TABLE INPUT OUTPUT LD BI PH D C B A a b c d e f g DISPLAY MODE 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 ##### ##### H INVERSE OF ABOVE OUTPUT LEVEL DISPLAY AS ABOVE X : Don t Care : Same as above combinatio ### : Depends upon the BCD code previously applied when LD = H 2/10

3 LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays DISPLAY MODE ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit V CC Supply Voltage -0.5 to +7 V V I DC Input Voltage -0.5 to V CC V V O DC Output Voltage -0.5 to V CC V I IK DC Input Diode Current ± 20 ma I OK DC Output Diode Current ± 20 ma I O DC Output Current ± 25 ma I CC or I GND DC V CC or Ground Current ± 50 ma P D Power Dissipation 500(*) mw T stg Storage Temperature -65 to +150 C T L Lead Temperature (10 sec) 300 C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditio is not implied (*) 500mW at 65 C; derate to 300mW by 10mW/ C from 65 C to 85 C 3/10

4 RECOMMENDED OPERATING CONDITIONS Symbol Parameter Value Unit V CC Supply Voltage 2 to 6 V V I Input Voltage 0 to V CC V V O Output Voltage 0 to V CC V T op Operating Temperature -55 to 125 C t r, t f V CC = 4.5V 0 to 500 Input Rise and Fall Time V CC = 2.0V 0 to 1000 V CC = 6.0V 0 to 400 DC SPECIFICATIONS Test Condition Value Symbol Parameter V CC (V) T A = 25 C -40 to 85 C -55 to 125 C Min. Typ. Max. Min. Max. Min. Max. Unit V IH V IL V OH V OL I I I CC High Level Input Voltage Low Level Input Voltage High Level Output Voltage Low Level Output Voltage Input Leakage Current Quiescent Supply Current I O =-20 µa I O =-20 µa I O =-20 µa I O =-4.0 ma I O =-5.2 ma I O =20 µa I O =20 µa I O =20 µa I O =4.0 ma I O =5.2 ma V I = V CC or GND ± 0.1 ± 1 ± 1 µa 6.0 V I = V CC or GND µa V V V V 4/10

5 AC ELECTRICAL CHARACTERISTICS (C L = 50 pf, Input t r = t f = 6) Test Condition Value Symbol Parameter V CC (V) T A = 25 C -40 to 85 C -55 to 125 C Min. Typ. Max. Min. Max. Min. Max. Unit t TLH t THL Output Traition Time t PLH t PHL Propagation Delay Time (BCD - OUT) t PLH t PHL Propagation Delay Time (BI - OUT) t PLH t PHL Propagation Delay Time (PH - OUT) t PLH t PHL Propagation Delay Time (LD - OUT) t W(H) Minimum Pulse Width (LD) t s Minimum Set Up Time t h Minimum Hold Time CAPACITIVE CHARACTERISTICS Test Condition Value Symbol Parameter V CC (V) T A = 25 C -40 to 85 C -55 to 125 C Min. Typ. Max. Min. Max. Min. Max. Unit C IN Input Capacitance pf C PD Power Dissipation Capacitance (note 1) pf 1) C PD is defined as the value of the IC s internal equivalent capacitance which is calculated from the operating current coumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I CC(opr) = C PD x V CC x f IN + I CC /2 (per FLIP/FLOP) 5/10

6 TEST CIRCUIT C L = 50pF or equivalent (includes jig and probe capacitance) R T = Z OUT of pulse generator (typically 50Ω) WAVEFORM : PROPAGATION DELAY, SETUP AND HOLD TIMES, MINIMUM PULSE WIDTH (LD) (f=1mhz; 50% duty cycle) 6/10

7 Plastic DIP-16 (0.25) MECHANICAL DATA DIM. mm. inch MIN. TYP MAX. MIN. TYP. MAX. a B b b D E e e F I L Z P001C 7/10

8 SO-16 MECHANICAL DATA DIM. mm. inch MIN. TYP MAX. MIN. TYP. MAX. A a a b b C c1 45 (typ.) D E e e F G L M S 8 (max.) PO13H 8/10

9 TSSOP16 MECHANICAL DATA DIM. mm. inch MIN. TYP MAX. MIN. TYP. MAX. A A A b c D E E e 0.65 BSC BSC K L A A2 A1 b e c K L E D E1 PIN 1 IDENTIFICATION D 9/10

10 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no respoibility for the coequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No licee is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specificatio mentioned in this publication are subject to change without notice. This publication supersedes and replaces 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 10/ STMicroelectronics - Printed in Italy - All 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

Obsolete Product(s) - Obsolete Product(s)

Obsolete Product(s) - Obsolete Product(s) 3 TO 8 LINE DECODER HIGH SPEED: t PD = 15ns (TYP.) at V CC = 6V LOW POWER DISSIPATION: I CC = 4µA(MAX.) at T A =25 C HIGH NOISE IMMUNITY: V NIH = V NIL = 28 % V CC (MIN.) SYMMETRICAL OUTPUT IMPEDANCE: