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MC14489 Datasheet, PDF (16/20 Pages) Motorola, Inc – Multi-Character LED Display/Lamp Driver
a
b
MC14489 c
d
e
NC
f
NC
g
NC
h
BANK 1
BANK 2
BANK 3
BANK 4
BANK 5
3
CMOS
MCU/MPU
THESE LAMPS
INDEPENDENTLY
CONTROLLED WITH
BITS D0 TO D19
THESE LAMPS DEPENDENTLY
CONTROLLED WITH
BITS D20, D21, AND D22*
* If required, this group of lamps can be independently controlled. To accomplish independent control, only connect lamps to BANK 1 and
BANK 2 for output h (two lamps). Then, use bits D20, D21, and D22 for control of these two lamps.
Figure 17. 25–Lamp Application
MC14489
16
MOTOROLA