LIQUID-CRYSTAL DISPLAY DRIVERS
Description
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°.
13A, ”STANDARD SPECIFICATIONS FOR DESCRIPTION OF ”B” SERIES CMOS DEVICES”
EY (Plastic Package) F (Ceramic Frit Seal Package)
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M1 (Micro Package)
C1 (Plastic Chip Carrier)
ORDER CODES : HCC40XXBF HCF40XXBM1 HCF40XXBEY HCF40XXBC1
DESCRIPTION The HCC4054B, HCC4055B and HCC4056B (extended temperature range) and the HCF4054B, HCF4055B and HCF4056B (intermediate temperature range) are monolithic integrated circuits available in 16-lead dual in-line plastic or ceramic package and plastic micro package.
The HCC/HCF4055B and HCC/HCF4056B types are single-digit BCD-to-7-segment decoder/driver circuits that provide level-shifting functions on the chip.
This feature permits the BCD input-signal swings (VDD to VSS) to be the same as
March 1989
or different from the 7-segment output-signal swings (VDD to VEE).
For example, the BCD input-signal swings (VDD to VSS) may be as low as 0 to – 3V, whereas the output-display drive-signal swing (VDD to VEE) may be from 0 to – 5V.
If VDD to VEE exceeds 15V, VDD to VSS sh...
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