ICM7243_05 Datasheet, PDF (11/14 Pages) Intersil Corporation – 8-Character, Microprocessor-Compatible, LED Display Decoder Driver

ICM7243
Display Font and Segment Assignments (Continued)
00
a1 a a2
f hi j b
g1
g2
eml k c
d2 d d1
DP
01
D5, D4 1 0
11
D3 0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
D2 0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D1 0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D0 0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
NOTE: Segments a and d appear as 2 segments each, but both halves are driven together.
FIGURE 12. ICM7243B 14-SEGMENT CHARACTER FONT WITH DECIMAL POINT
V_DD
SEGMENT
DRIVER
V_LED = 1.6V
R_TYPICAL = 100µ
R
SEG x DISPLAY
CHARACTER
DRIVER
R_DS(ON) ~ 4ÞΩ
V_SS
CHAR N
SEGMENT LEDs
FIGURE 13. SEGMENT AND CHARACTER DRIVERS OUTPUT CIRCUIT
11
FN3162.3
October 28, 2005