ICM7244 查看數據表（PDF） - Renesas Electronics

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ICM7244

8-Character, Microprocessor Compatible, LED Display Decoder Driver

Renesas Electronics 

ICM7244

Timing Waveforms

WR

CLEAR

CS

tCS

ADDRESS

WRITE

DATA

tAH

tAS

VALID

tWC

tWPI

tWHP

tDS

tT

tT

tDH

VALID

FIGURE 1. RANDOM ACCESS TIMING

CHAR

1

tSEN

CHAR

2

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

FN6675 Rev.1.00

Jan 22, 2009

FIGURE 2. SEQUENTIAL ACCESS MODE TIMING (MODE = 1)

~5µs

~300µs

INTER-CHARACTER BLANKING

FIGURE 3. DISPLAY CHARACTERS MULTIPLEX TIMING DIAGRAM

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