HCC4055B Datasheet PDF | STMicroelectronics

STMicroelectronics HCC4055B

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).

Part No.	HCC4055B
Datasheet	HCC4055B Download
Manufacturer	STMicroelectronics
Description	LIQUID-CRYSTAL DISPLAY DRIVERS
Buy	Stock & Price

DESCRIPTION

OF ”B” SERIES CMOS DEVICES” EY (Plastic Package) F (Ceramic Frit Seal Package) . . . . . . . . . . M1 (Micro Package) C1 (Plastic Chip Carrier) ORDER CODES : HCC40XXBF HCF40XXBM1 HCF40XXBEY HCF40XXBC1

DESCRIPTION

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 should be at least 4V. The 7-segment outputs are controlled by the DISPLAY-FREQUENCY (DF) input which causes the selected segment outputs to be low, high, or a square-wave output (for liquid-crystal displays). When the DF input is low the output segments will be high when selected by the BCD inputs. When the DF input is high, the output segments will be low when selected by the BCD inputs. When a square-wave is present at the DF input, the selected segments will have a square-wave output that is 180° out of phase with the DF input. Those segments which are not selected will have a square-wave output that is in phase with the input.