1/11September 2002
■ QUIESCENT CURRENT SPECIF. UP TO 20V
■ OPERATION OF LIQUID CRYSTALS WITH
CMOS CIRCUITS PROVIDES ULTRA LOW
POWER DISPLAYS
■ EQUIVALENT AC OUTPUT DRIVE FOR
LIQUID CRYSTAL DISPLAYS - NO
EXTERNAL CAPACITOR REQUIRED
■ VOLTAGE DOUBLING ACROSS DISPLAY
[(V
DD
- V
EE
) = 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
I
I
= 100nA (MAX) AT V
DD
= 18V T
A
= 25°C
■ 100% TESTED FOR QUIESCENT CURRENT
■ MEETS ALL REQUIREMENTS OF JEDEC
JESD13B "STANDARD SPECIFICATIONS
FOR DESCRIPTION OF B SERIES CMOS
DEVICES"
DESCRIPTION
HCF4054B is a monolithic integrated circuit
fabricated in Metal Oxide Semiconductor
technology available in DIP and SOP packages.
HCF4054B provides level shifting similar to
HCF4055B and HCF4056B, independently
strobed latches, and common DF control on 4
signal lines. This device is intended to provide
drive signal compatibility with HCF4055B and
HCF4056B 7-segment decoder types for the
decimal point, colon, polarity, and similar display
lines. A level-shifted high amplitude DF output can
be obtained from any HCF4054B output line by
connecting the corresponding input and strobe
lines to a low and high levels. HCF4054B may
also be utilized for logic level "up conversion" or
"down conversion" respectively. For example,
input signal swings (V
DD
to V
SS
) from +5V to 0V
HCF4054B
4 SEGMENT LIQUID CRYSTAL DISPLAY
DRIVER WITH STROBED LATCH FUNCTION
PIN CONNECTION
ORDER CODES
PACKAGE TUBE T & R
DIP HCF4054BEY
SOP HCF4054BM1 HCF4054M013TR
DIP SOP
Obsolete Product(s) - Obsolete Product(s)
