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Número de pieza
componentes Descripción
ICM7244 Ver la hoja de datos (PDF) - Intersil
Número de pieza
componentes Descripción
Fabricante
ICM7244
8-Character, Microprocessor Compatible, LED Display Decoder Driver
Intersil
ICM7244 Datasheet PDF : 13 Pages
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Timing Waveforms
WR
CLEAR
ICM7244
CS
t
CS
ADDRESS
WRITE
DATA
t
AH
t
AS
VALID
t
WC
t
WPI
t
WHP
t
DS
t
T
t
T
t
DH
VALID
FIGURE 1. RANDOM ACCESS TIMING
CHAR
1
t
SEN
CHAR
2
CHAR
8
t
WPH
SEN
DISPLAY FULL
t
WDF
INTERNAL
INTER-CHARACTER
BLANKING
SIGNAL
CHAR 1
CHAR 2
CHAR 3
CHARACTERS
DRIVE
SIGNALS
CHAR 4
CHAR 5
CHAR 6
CHAR 7
CHAR 8
FIGURE 2. SEQUENTIAL ACCESS MODE TIMING (MODE = 1)
~
5µs
~
300µs
INTER-CHARACTER BLANKING
FIGURE 3. DISPLAY CHARACTERS MULTIPLEX TIMING DIAGRAM
5
FN6675.1
January 22, 2009
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