SED1565DBB datasheet(3/87 Pages) EPSON

3 / 87 page

SED1565 Series

EPSON

8–1

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

× 132 bits of display data RAM and

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

× 132 dot display (capable of

displaying 8 columns

× 4 rows of a 16 × 16 dot kanji

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

× 2 rows of 16 × 16 dot kanji

fonts). Thanks to the built-in 55 common output circuits

and 132 segment output circuits, the SED1568*** is

capable of displaying 55

× 132 dots (11 columns × 4

lines using 11

× 12 dots Kanji font) with a single chip.

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

× 4 rows of 11 × 12 dot kanji fonts).

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.

RAM bit data:

“1” Non-illuminated

“0” Illuminated

(during normal display)

• RAM capacity

× 132 = 8580 bits

• Display driver circuits

SED1565***: 65 common output and 132 segment

outputs

SED1566***: 49 common output and 132 segment

outputs

SED1567***: 33 common outputs and 132 segment

outputs

SED1568***: 55 common outputs and 132 segment

outputs

SED1569***: 53 common outputs and 132 segment

outputs

• High-speed 8-bit MPU interface (The chip can be

connected directly to the both the 80x86 series MPUs

and the 68000 series MPUs)

/Serial interfaces are supported.

• Abundant command functions

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.

• Static drive circuit equipped internally for indicators.

(1 system, with variable flashing speed.)

• Low-power liquid crystal display power supply circuit

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)

V5 voltage regulator resistors equipped internally,

V1 to V4 voltage divider resistors equipped internally,

electronic volume function equipped internally,

voltage follower.

• CR oscillator circuit equipped internally (external

clock can also be input)

• Extremely low power consumption

Operating power when the built-in power supply is

used (an example)

SED1565D0B

µA (VDD – VSS = VDD – VSS2 =

/SED1565DBB 3.0 V, Quad voltage, V5 – VDD = –

11.0 V)

SED1566D0B

µA (VDD – VSS = VDD – VSS2 =

/SED1566DBB 3.0 V, Triple voltage, V5 – VDD = –

8.0 V)

SED1567D0B

µA (VDD – VSS = VDD – VSS2 =

/SED1567DBB 3.0 V, Triple voltage, V5 – VDD = –

8.0 V)

SED1568D0B/SED1568DBB

/SED1569D0B/SED1569DBB

µA (VDD – VSS = VDD – VSS2 =

3.0 V, Triple voltage, V5 – VDD = –

8.0 V)

Conditions: When all displays are in white and the

normal mode is selected (see page 60 *12 for details

of the conditions).

• Power supply

Operable on the low 1.8 voltage

Logic power supply VDD – VSS = 1.8 V to –5.5 V

Boost reference voltage: VDD – VSS2 = 1.8 V to

–6.0 V

Liquid crystal drive power supply: VDD – V5 = –4.5

V to –16.0 V

• 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

resistance to radiation.

SED1565DBB Datasheet(PDF) 3 Page - Epson Company

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