12-stage shift-and-store register LED driver
INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
• The IC04 LOCMOS HE4000B Logic Family S...
Description
INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
The IC04 LOCMOS HE4000B Logic Family Specifications HEF, HEC
The IC04 LOCMOS HE4000B Logic Package Outlines/Information HEF, HEC
HEF4894B 12-stage shift-and-store register LED driver
Product specification File under Integrated Circuits, IC04
January 1995
Philips Semiconductors
12-stage shift-and-store register LED driver
Product specification
HEF4894B
APPLICATIONS
Automotive
Industrial
GENERAL DESCRIPTION
The HEF4894B is a 12 stage serial shift register having a storage latch associated with each stage for strobing data from the serial input to parallel LED driver outputs O0 to O11. Data is shifted on positive-going clock transitions. The data in each shift register stage is transferred to the storage register when the strobe (STR) input is HIGH. Data in the storage register appears at the outputs whenever the output enable (EO) signal is HIGH.
Two serial outputs (Os and Os’) are available for cascading a number of HEF4894B devices. Data is available at Os on positive-going clock edges to allow high-speed operation in cascaded systems in which the clock rise time is fast. The same serial information is available at Os’ on the next negative-going clock edge and provides cascading HEF4894B devices when the clock rise time is slow.
ORDERING AND PACKAGE INFORMATION
TYPE NUMBER
HEF4894BT HEF4894BP
PINS 20 20
PACKAGES
PIN POSITION MATERIAL SO plastic DIL plastic
CODE SO20/SOT163A DIL20/...
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