M74HC4543
BCD TO 7 SEGMENT LATCH/DECODER/LCD DRIVER
s HIGH SPEED:
tPD = 14ns (TYP.) at VCC = 6V
s LOW POWER DISSIPAT...
M74HC4543
BCD TO 7 SEGMENT LATCH/DECODER/LCD DRIVER
s HIGH SPEED:
tPD = 14ns (TYP.) at VCC = 6V
s LOW POWER DISSIPATION:
ICC = 4µA(MAX.) at TA=25°C
s HIGH NOISE IMMUNITY:
) VNIH = VNIL = 28 % VCC (MIN.) t(s s SYMMETRICAL OUTPUT IMPEDANCE: c |IOH| = IOL = 4mA (MIN) u s BALANCED PROPAGATION DELAYS: d tPLH ≅ tPHL ro s WIDE OPERATING VOLTAGE RANGE: P VCC (OPR) = 2V to 6V
s PIN AND FUNCTION COMPATIBLE WITH
te 74 SERIES 4543 ole DESCRIPTION s The M74HC4543 is an high speed CMOS b BCD-TO-7 SEGMENT DECODER WITH LCD O DRIVER fabricated with silicon gate C2MOS - technology. 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). 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. 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 FUNCT...