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參數(shù)資料
| 型號： | S6B1713A15-B0CZ |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD |
| 中文描述： | 65的COM / 132賽格驅(qū)動 |
| 文件頁數(shù)： | 25/70頁 |
| 文件大小： | 419K |
| 代理商： | S6B1713A15-B0CZ |
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S6B1713
65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
21
LCD DISPLAY CIRCUITS
Oscillator
This is completely on-chip oscillator and its frequency is nearly independent of V
DD
. This oscillator signal is used in
the voltage converter and display timing generation circuit.
* Test condition: Temperature: 25
°
C & 85
°
C, TEMPS=” L” , No load
V
DD
vs. f
osc
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
2.4
2.7
3.0
3.3
3.6
4.0
4.5
5.0
5.5
V
DD
[V]
f
osc
[kHz]
1/33 Duty (25
1/49 Duty (25
1/65 Duty (25
1/33 Duty (85
1/49 Duty (85
1/65 Duty (85
)
)
)
)
)
)
Figure 13. V
DD
vs. f
OSC
Display Timing Generator Circuit
This circuit generates some signals to be used for displaying LCD. The display clock, CL, generated by oscillation
clock, generates the clock for the line counter and the signal for the display data latch. The line address of on-chip
RAM is generated in synchronization with the display clock (CL) and the 132-bit display data is latched by the
display data latch circuit in synchronization with the display clock. The display data, which is read to the LCD driver,
is completely independent of the access to the display data RAM from the microprocessor. The display clock
generates an LCD AC signal(M) which enables the LCD driver to make a AC drive waveform, and also generates an
internal common timing signal and start signal to the common driver. Driving 2-frame AC driver waveform and
internal timing signal are shown in figure 14.
In a multiple-chip configuration, the slave chip requires the M, CL and DISP signals from the master. Table 11 shows
the M, CL, and DISP status.
Table 11. Master and Slave Timing Signal Status
Operation mode
Oscillator
M
CL
DISP
ON (internal clock used)
Output
Output
Output
Master
OFF (external clock used)
Output
Input
Output
Slave
-
Input
Input
Input
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| S6B1713A15-XXX0 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD |
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