Philips HEF4894B
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. The data in each shift register stage is transferred to the storage register when the strobe (STR) input is HIGH.| Part No. | HEF4894B |
|---|---|
| Datasheet | HEF4894B Download |
| Manufacturer |  Philips |
| Description | 12-stage shift-and-store register LED driver |
| Buy | Stock & Price |
APPLICATIONS
● Automotive● Industrial
GENERAL DESCRIPTION
Data is shifted on positive-going clock transitions. 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/SOT146 PINNING PIN SYMBOL 1 STR 2D 3 CP 4, 5, 6, 7, 8, 9, 18, O0 to O11 17, 16, 15, 14, 13 10 11, 12 19 Vss Os, Os’ EO 20 VDD NAME AND FUNCTION strobe input data input clock input parallel outputs (open drain) ground serial outputs output enable input positive supply voltage FAMILY DATA See Family Specifications except for: Rating for DC current into any open-drain output: 40 mA.
