器件名称:
M74HC4543B1R
功能描述:
BCD TO 7 SEGMENT LATCH/DECODER/LCD DRIVER
文件大小:
256.89KB 共12页
简 介:
M54HC4543 M74HC4543 BCD TO 7 SEGMENT LATCH/DECODER/LCD DRIVER . . . . . . . . HIGH SPEED tW = 7 ns (TYP.) AT VCC = 5 V LOW POWER DISSIPATION ICC = 4 A (MAX.) AT TA = 25 °C HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.) OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE |IOH| = IOL = 4 mA (MIN.) BALANCED PROPAGATION DELAYS tPLH = tPHL WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V PIN AND FUNCTION COMPATIBLE WITH 4543B B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HC4543F1R M74HC4543M1R M74HC4543B1R M74HC4543C1R PIN CONNECTIONS (top view) DESCRIPTION The M54/74HC4543 is a high speed CMOS BCDTO-7 SEGMENT DECODER WITH LCD DRIVER 2 fabricated in silicon gate C MOS technology. High speed latch and decode operation 120 times as fast as standard CMOS 4511B while CMOS low power consumption in maintained. This device consist 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 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 tran……
