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| ICM7244_14 Datasheet, PDF (9/13 Pages) Intersil Corporation – 8-Character, Microprocessor Compatible,LED Display Decoder Driver | |||
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Typical Applications (Continued)
8-CHARACTER LED DISPLAY
ICM7244
8-CHARACTER LED DISPLAY
8-CHARACTER LED DISPLAY
8
NOTE
8
NOTE
8
NOTE
CLR
CLR
CHAR
CLR
CHAR
CLR
CHAR
SEG
SEG
SEG
+5V
SEN
DISP FULL
SEN
DISP FULL
SEN
DISP FULL
+5V
MODE
+5V
MODE
+5V
MODE
WR
VDD
+5V
WR
VDD
+5V
WR
VDD
+5V
D0 - D5
VSS
CS
D0 - D5
VSS
CS
D0 - D5
VSS
CS
DATA
BUS 6
6
6
WR
CS,
(WR)
FIRST 8 CHARACTERS
SECOND 8 CHARACTERS
NTH 8 CHARACTERS
NOTE: 17 for ICM7244.
FIGURE 6. MULTICHARACTER DISPLAY USING SEQUENTIAL ACCESS MODE
+5V
+5V
617Ω
SEG
1mA
ICM7244
2N2219
14Ω (100mAPEAK)
CHAR
rON = 4Ω
GND
14mA
2N6034
1.4APEAK
GND
+5V
617Ω
+5V
1k
+5V
1.4APEAK
2N6034
SEG
ICM7244
300Ω
rON = 4Ω
CHAR
1k
25Ω
(100mAPEAK)
2N2219
GND
1k
GND
GND
FIGURE 7A. COMMON CATHODE DISPLAY
FIGURE 7B. COMMON ANODE DISPLAY
FIGURE 7. DRIVING LARGE DISPLAYS
9
FN6675.1
January 22, 2009
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