T6963CFG Toshiba Semiconductor, T6963CFG Datasheet - Page 7

• Manufacturer Part Number: T6963CFG
• Description: DOT MATRIX LCD CONTROLLER LSI
• Manufacturer: Toshiba Semiconductor

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● The relationship between number of row / column and oscillation clock
The frequency of the crystal oscillator is adjusted by the following formula.
f
f
f
M
N
N
Note 1: Upper ··· Single−Scan, lower ···· Dual−Scan at f
Note 2: M and N to mach 5.5 MHz or less indicate the conditions to apply T6963CFG.
OSC
SCP
R
: Frequency of oscillation
: Frequency of shift clock (f
: Frequency of Frame
: Number of characters on one line (number of dots on one line 8 M)
: Number of rows (duty = 1 / 8N)
For all font sizes (e.g. 7 × 8, 6 × 8, 5× 8) the oscillation frequency remains constant.
f
(f
10
12
14
16
f SCP
OSC
2
4
6
8
8
R
M
= 60 Hz)
= f
×
8
M
R
N
× 64 × 2 × M × N
=
f
1
R
0.492
0.983
0.983
1.966
1.475
2.949
1.966
3.932
2.458
4.915
2.949
5.898
3.440
6.881
3.932
7.864
32
SCP
= f
OSC
0.614
1.229
1.229
2.458
1.843
3.686
2.458
4.915
3.072
6.144
3.686
7.373
4.300
8.601
4.915
9.830
40
/ 2)
7
R
= 60 Hz
11.776
13.763
15.729
0.983
1.966
1.966
3.932
2.949
5.898
3.932
7.864
4.915
6.881
7.864
9.830
5.898
64
12.288
14.746
17.203
19.660
1.229
2.458
2.458
4.915
3.686
7.372
4.915
9.830
6.144
7.373
8.602
9.830
Upper
Lower
80
(Fig. 2)
T6963CFG
Unit: [MHz]
1 / 112
1 / 128
1 / 16
1 / 32
1 / 48
1 / 64
1 / 80
1 / 96
2007-05-15
Duty