HCF4056 BCD to 7-Segment Decoder/Driver

HCF4056B is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor technology available in DIP and SOP packages.

HCF4056B is a single digit BCD to 7 segment decoder driver circuit that provides a level shifting function on the chip. This feature permits the BCD input-signal swings (VDD to VSS) to be the same as 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 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).

技术特性

QUIESCENT CURRENT SPECIF. UP TO 20V
OPERATION OF LIQUID CRYSTALS WITH CMOS CIRCUITS PROVIDES ULTRA LOW POWER DISPLAY.
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
ONE 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 LEAKAGE CURRENT
- II = 100nA (MAX) AT VDD = 18V TA = 25 °C
100% TESTED FOR QUIESCENT CURRENT
MEETS ALL REQUIREMENTS OF JEDEC JESD13B "STANDARD SPECIFICATIONS FOR DESCRIPTION OF B SERIES CMOS DEVICES"

HCF4056 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
HCF4056BEY	Active		1000	PDIP 16	Tube		HCF4056BEY
HCF4056M013TR	Active		1000	SO-16	Tape And Reel		HCF4056M013TR

DATASHEET

描述	版本	大小
HCF4056 : LIQUID CRYSTAL DISPLAY DRIVER	2	260KB