SED1565 EPSON [Epson Company], SED1565 Datasheet - Page 32
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SED1565
Manufacturer Part Number
SED1565
Description
Direct display of RAM data through the display data RAM
Manufacturer
EPSON [Epson Company]
Datasheet
1.SED1565.pdf
(87 pages)
- Current page: 32 of 87
- Download datasheet (333Kb)
SED1565 Series
When multiple SED1565 Series chips are used, the
slave chips must be supplied the display timing signals
(FR, CL, DOF) from the master chip[s].
Table 5 shows the status of the FR, CL, and DOF
signals.
The Common Output Status Select
Circuit
In the SED1565 Series chips, the COM output scan
direction can be selected by the common output status
select command. (See Table 6.) Consequently, the
constraints in IC layout at the time of LCD module
assembly can be minimized.
The Liquid Crystal Driver Circuits
These are a 197-channel (SED1565 Series), a 181-
channel (SED1566 Series) multiplexers 165-channel
(SED1567 Series) and a 185-channel (SED1569 Series)
that generate four voltage levels for driving the liquid
crystal. The combination of the display data, the COM
scan signal, and the FR signal produces the liquid
crystal drive voltage output.
Figure 6 shows examples of the SEG and COM output
wave form.
8–30
Status
Normal
Reverse COM63
Master (M/S = “H”)
Slave (M/S = “L”)
COM0
SED1565*
COM63 COM0
COM0 COM47
The internal oscillator circuit is enabled (CLS = “H”)
The internal oscillator circuit is disabled (CLS = “L”)
The internal oscillator circuit is enabled (CLS = “H”)
The internal oscillator circuit is disabled (CLS = “L”)
**
Operating Mode
SED1566*
COM47 COM0
COM0 COM31
**
COM Scan Direction
EPSON
Table 5
Table 6
SED1567*
COM31 COM0
COM0 COM53
**
SED1568*
COM53 COM0
FR
Output Output Output
Output Input
Input
Input
COM0 COM51
**
CL
Input
Input
SED1569*
DOF
Output
Input
Input
COM51
COM0
**
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