SED1565 EPSON [Epson Company], SED1565 Datasheet - Page 3

• Manufacturer Part Number: SED1565
• Description: Direct display of RAM data through the display data RAM
• Manufacturer: EPSON [Epson Company]

GENERAL DESCRIPTION
The SED1565 Series is a series of single-chip dot matrix
liquid crystal display drivers that can be connected
directly to a microprocessor bus. 8-bit parallel or serial
display data sent from the microprocessor is stored in
the internal display data RAM and the chip generates a
liquid crystal drive signal independent of the
microprocessor. Because the chips in the SED1565
Series contain 65
there is a 1-to-1 correspondence between the liquid
crystal panel pixels and the internal RAM bits, these
chips enable displays with a high degree of freedom.
The SED1565 Series chips contain 65 common output
circuits and 132 segment output circuits, so that a single
chip can drive a 65
displaying 8 columns
font). The SED1567 Series chips contain 33 common
output circuits and 132 segment output circuits, so that
a single chip can drive 33 132 dot display (capable of
displaying 8 columns
fonts). Thanks to the built-in 55 common output circuits
and 132 segment output circuits, the SED1568*
capable of displaying 55
lines using 11
The SED1569 Series chips contain 53 common output
circuits and 132 segment output circuits, so that a single
chip can drive 53 132 dot display (capable of displaying
11 columns
Moreover, the capacity of the display can be extended
through the use of master/slave structures between
chips.
The chips are able to minimize power consumption
because no external operating clock is necessary for the
display data RAM read/write operation. Furthermore,
because each chip is equipped internally with a low-
power liquid crystal driver power supply, resistors for
liquid crystal driver power voltage adjustment and a
display clock CR oscillator circuit, the SED1565 Series
chips can be used to create the lowest power display
system with the fewest components for high-
performance portable devices.
FEATURES
• Direct display of RAM data through the display data
• RAM capacity
• Display driver circuits
RAM.
RAM bit data: “1” Non-illuminated
65
SED1565*
SED1566*
SED1567*
SED1568*
SED1569*
132 = 8580 bits
**
**
**
**
**
: 65 common output and 132 segment
: 49 common output and 132 segment
: 33 common outputs and 132 segment
: 55 common outputs and 132 segment
: 53 common outputs and 132 segment
4 rows of 11
12 dots Kanji font) with a single chip.
outputs
outputs
outputs
outputs
outputs
“0” Illuminated
132 bits of display data RAM and
(during normal display)
132 dot display (capable of
4 rows of a 16
2 rows of 16
132 dots (11 columns
12 dot kanji fonts).
16 dot kanji
16 dot kanji
**
is
4
EPSON
• High-speed 8-bit MPU interface (The chip can be
• Abundant command functions
• Static drive circuit equipped internally for indicators.
• Low-power liquid crystal display power supply circuit
• CR oscillator circuit equipped internally (external
• Extremely low power consumption
• Power supply
• Wide range of operating temperatures: –40 to 85 C
• CMOS process
• Shipping forms include bare chip and TCP.
• These chips not designed for resistance to light or
connected directly to the both the 80x86 series MPUs
and the 68000 series MPUs)
/Serial interfaces are supported.
Display data Read/Write, display ON/OFF, Normal/
Reverse display mode, page address set, display start
line set, column address set, status read, display all
points ON/OFF, LCD bias set, electronic volume,
read/modify/write, segment driver direction select,
power saver, static indicator, common output status
select, V5 voltage regulation internal resistor ratio
set.
(1 system, with variable flashing speed.)
equipped internally.
Booster circuit (with Boost ratios of Double/Triple/
Quad, where the step-up voltage reference power
supply can be input externally)
High-accuracy voltage adjustment circuit (Thermal
gradient –0.05%/ C or –0.2%/ C or external input)
V
V
electronic volume function equipped internally,
voltage follower.
clock can also be input)
Operating power when the built-in power supply is
used (an example)
SED1568D
/SED1569D
Conditions: When all displays are in white and the
normal mode is selected (see page 60 *12 for details
of the conditions).
Operable on the low 1.8 voltage
Logic power supply V
Boost reference voltage: V
–6.0 V
Liquid crystal drive power supply: V
V to –16.0 V
resistance to radiation.
SED1565D
/SED1565D
SED1566D
/SED1566D
SED1567D
/SED1567D
5
1
to V
voltage regulator resistors equipped internally,
4
voltage divider resistors equipped internally,
0B
0B
0B
0B
0B
BB
BB
BB
/SED1568D
/SED1569D
81 A (V
3.0 V, Quad voltage, V
11.0 V)
43 A (V
3.0 V, Triple voltage, V
8.0 V)
29 A (V
3.0 V, Triple voltage, V
8.0 V)
46 A (V
3.0 V, Triple voltage, V
8.0 V)
DD
DD
– V
DD
DD
DD
BB
BB
DD
– V
– V
– V
– V
SS
SED1565 Series
= 1.8 V to –5.5 V
– V
SS
SS
SS
SS
= V
= V
= V
= V
SS2
DD
DD
DD
DD
DD
5
5
5
5
– V
= 1.8 V to
– V
– V
– V
– V
– V
– V
– V
– V
5
DD
DD
DD
DD
= –4.5
SS2
SS2
SS2
SS2
8–1
= –
= –
= –
= –
=
=
=
=