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ICM7243_05 Datasheet, PDF (5/14 Pages) Intersil Corporation – 8-Character, Microprocessor-Compatible, LED Display Decoder Driver | |||
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Timing Waveforms
WR
CLEAR
ICM7243
CS
CS
ADDRESS
WRITE
DATA
tCS
tAH
tAS
VALID
tWC
tWPI
tWHP
tDS
tT
tT
tDH
VALID
FIGURE 1. RANDOM ACCESS TIMING
CHAR
1
CHAR
2
tSEN
CHAR
8
tWPH
SEN
DISPLAY FULL
tWDF
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
FN3162.3
October 28, 2005
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