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HCF4056B Datasheet LIQUID-CRYSTAL DISPLAY DRIVERS

Manufacturer: STMicroelectronics

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General Description

OF ”B” SERIES CMOS DEVICES” EY (Plastic Package) F (Ceramic Frit Seal Package) .

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Overview

HCC4054B/55B/56B HCF4054B/55B/56B LIQUID-CRYSTAL DISPLAY DRIVERS 4054B 4-SEGMENT DISPLAY DRIVER STROBED LATCH FUNCTION 4055B BCD TO 7-SEGMENT DECODER/DRIVER, WITH ”DISPLAY-FREQUENCY” OUTPUT 4056B BCD TO 7-SEGMENT DECODER/DRIVER WITH STROBED LATCH FUNCTION QUIESCENT CURRENT SPECIFIED TO 20V FOR HCC DEVICE OPERATION OF LIQUID CRYSTALS WITH COS/MOS CIRCUITS PROVIDES ULTRALOW-POWER DISPLAYS EQUIVALENT AC OUTPUT DRIVE FOR LIQUID-CRYSTAL DISPLAYS-NO EXTERNAL CAPACITOR REQUIRED VOLTAGE DOUBLING ACROSS DISPLAY [(VDD – VEE) = 18V)] RESULTS IN EFFECTIVE 36V (p-p) DRIVE ACROSS SELECTED DISPLAY SEGMENTS LOW-OR HIGH-OUTPUT LEVEL DC DRIVE FOR OTHER TYPES OF DISPLAYS ON-CHIP LOGIC-LEVEL CONVERSION FOR DIFFERENT INPUT AND OUTPUT-LEVEL SWINGS FULL DECODING OF ALL INPUT COMBINATIONS : ”0 – 9, L, H, P, A– ” AND BLANK POSITIONS INPUT CURRENT OF 100nA AT 18V AND 25°C FOR HCC DEVICE 100% TESTED FOR QUIESCENT CURRENT MEETS ALL REQUIREMENTS OF JEDEC TENTATIVE STANDARD N°.

Key Features

  • output) t T HL , t TL H Transition Time (any output) t se t u p.
  • Data Setup Time.
  • 5 0 0 tW.
  • Strobe Pulse Width.
  • 5 0 0.
  • HCC/HCF4054B and HCC/HCF4056B only. Figure 1 : Typical Output Low (sink) Current Characteristics. Figure 2 : Minimum Output High (source) Current Characteristics.

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