D7225G NEC, D7225G Datasheet - Page 18

• Manufacturer Part Number: D7225G
• Description: Search -----> UPD7225G
• Manufacturer: NEC

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3.
3.1 Frame Frequency Setting
ratio) as indicated in the figure below.
3.2 Blinking Frequency Setting
18
The frame frequency is set according to M1, M0 (number of time-divisions setting), and F1, F0 (frequency division
The blinking frequency can be set in two settings by K0 in the BLINKING ON command.
Remark f
F1,F0
FRAME FREQUENCY AND BLINKING FREQUENCY SETTING
0
0
1
1
CL
= Clock oscillation frequency
M1, M0
0
1
0
1
0
Remark f
Static
Figure 3-2. Blinking Frequency Setting
f
f
f
f
2
2
2
2
CL
CL
CL
CL
Figure 3-1. Frame Frequency Setting
11
7
8
9
K0
0
1
1
CL
Data Sheet S14308EJ6V0DS00
= Clock oscillation frequency
Divide- by-2 time
1
Blinking frequency
division
2
2
2
2
11
7
8
9
f
f
f
f
CL
CL
CL
CL
2
2
2
2
f
2
f
2
CL
CL
17
16
1
Divide- by-3 time
1
division
2
2
2
2
11
7
8
9
f
f
f
f
CL
CL
CL
CL
3
3
3
3
0
Divide- by-4 time
0
division
2
2
2
2
11
7
8
9
f
f
f
f
CL
CL
CL
CL
4
4
4
4
0
PD7225