DS8881 Datasheet, PDF (1/6 Pages) National Semiconductor (TI) – Vacuum Fluorescent Display Driver

May 1988
DS8881 Vacuum Fluorescent Display Driver
General Description
The DS8881 vacuum fluorescent display driver will drive
16-digit grids of a vacuum fluorescent display The decode
inputs select one of the sixteen outputs to be pulled high
The device contains an oscillator for supplying clock signals
to the MOS circuit the filament bias zener and 50 kX pull-
down resistors for each grid Outputs will source up to 7 mA
The DS8881 is designed for 9V operation If the enable in-
put is pulled low all outputs are disabled
Features
Y _{Oscillator frequency accuracy and stability allows maxi-}
mum system speed
Y _{Interdigit blanking with the enable input provides ghost-}
free display operation
Y _{50 kX pull-down resistors for each grid}
Y _{7V filament bias zener}
Connection Diagram
Top View
Order Number DS8881N
See NS Package Number N28B
Truth Table All outputs now shown high are off (low)
Inputs
E_N D C B A 0 1 2 3 4 5
H LLLLH
H LLLH
H
H LLHL
H
H L LHH
H
H LHLL
H
H LHLH
H
H LHHL
H LHHH
H HLLL
H HLLH
H HLHL
H HLHH
H HHL L
H HHLH
H HHHL
H HHHH
L XXXXLLLLLL
Digit Outputs
6 7 8 9 10
H
H
H
H
H
LLLL L
C1995 National Semiconductor Corporation TL F 5846
TL F 5846 – 1
11 12 13 14 15
H
H
H
H
H
LLLLL
RRD-B30M105 Printed in U S A