GENERAL DESCRIPTION

The ST7565V is a single-chip dot matrix LCD driver 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 LCD drive signal independent of the microprocessor.

FEATURES

Direct display of RAM data through the display data RAM.

RAM capacity : 65 x 132 = 8580 bits

Display duty selectable by select pin

   1/65 duty : 65 common x 132 segment

   1/49 duty : 49 common x 132 segment

   1/33 duty : 33 common x 132 segment

   1/55 duty : 55 common x 132 segment

   1/53 duty : 53 common x 132 segment

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 selects, power saver, common output status select, V5 voltage regulation internal resistor ratio set.

Low-power liquid crystal display power supply circuit equipped internally.

   Booster circuit (with Boost ratios of 2X/3X/4X/5X/6X,where the step-up voltage reference power supply can be input externally).

   High-accuracy voltage adjustment circuit (Thermal

   gradient –0.05%/°C ) V 5 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)

60uA (VDD – VSS = VDD – VSS2 =3.0 V, Quad voltage, V5 – VDD = – 11.0 V).

Conditions: When displays pattern OFF and the normal mode is selected.

Power supply operate on the low 1.8 voltage

   Logic power supply

      VDD – VSS = 1.8V to 3.3V

   Boost reference voltage: VDD – VSS2 = 2.4V to 3.3V

   Booster maximum voltage limited

      VOUT= -13.5V

   Liquid crystal drive power supply:

      VDD – V5 = 4.0V to 12.0 V

Wide range of operating temperatures: –30 to 85°C

CMOS process

Shipping forms include bare chip and TCP.

These chips not designed for resistance to light or resistance to radiation.