ICM7245_14 Datasheet, PDF (9/13 Pages) Intersil Corporation – 8-Character, 16-Segment, Microprocessor Compatible,LED Display Decoder Driver

Typical Applications (Continued)
8-CHARACTER LED DISPLAY
ICM7245
8-CHARACTER LED DISPLAY
8-CHARACTER LED DISPLAY
8
17
8
17
8
17
CLR
+3.3V
+3.3V
DATA
BUS 6
WR
CS,
(WR)
CLR
SEN
MODE
WR
D0 - D5
CHAR
SEG
DISP FULL
V_DD
V_SS
CS
+3.3V
+3.3V
6
CLR
SEN
MODE
WR
D0 - D5
CHAR
SEG
DISP FULL
V_DD
V_SS
CS
+3.3V
+3.3V
6
CLR
SEN
MODE
WR
D0 - D5
CHAR
SEG
DISP FULL
V_DD
V_SS
CS
FIRST 8 CHARACTERS
SECOND 8 CHARACTERS
NTH 8 CHARACTERS
FIGURE 6. MULTICHARACTER DISPLAY USING SEQUENTIAL ACCESS MODE
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
136Ω
SEG
1mA
ICM7245
2N2219
14Ω (100mA_PEAK)
136Ω
1k
1.4A_PEAK
2N6034
SEG
300Ω
1k
ICM7245
CHAR
r_ON = 6Ω
14mA
2N6034
1.4A_PEAK
r_ON = 6Ω
CHAR
25Ω
(100mA_PEAK)
2N2219
1k
GND
GND
GND
GND
GND
FIGURE 7A. COMMON CATHODE DISPLAY
FIGURE 7B. COMMON ANODE DISPLAY
FIGURE 7. DRIVING LARGE DISPLAYS
9
FN8587.0
October 29, 2013