DS8874 9-Digit Shift Input LED Driver
March 1988
DS8874 9-Digit Shift Input LED Driver
General Description
The DS8874 is a 9-digit LED driver which incorporates a
shift register input decoding circuit and a low battery indica-
tor Outputs will sink 110 mA at less than 0 5V drop when
sequentially selected When the V
CC
supply falls below 6 5V
typical segment current will be furnished at digit 9 time to
indicate a low battery condition Pin 13 is generally connect-
ed to the decimal point segment on the display so that when
a low battery condition exists the left-most decimal point
lights up
Features
Y
Y
Y
Y
110 mA digit sink
Low battery indicator
Minimum number of connections
MOS compatible inputs
Connection Diagram
Dual-In-Line Package
TL F 5843 鈥?1
Top View
Order Number DS8874N
See NS Package Number N14A
Equivalent Schematic
TL F 5843 鈥?2
C
1995 National Semiconductor Corporation
TL F 5843
RRD-B30M105 Printed in U S A