ST7565V

` 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, 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 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 ) 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) 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 3.3 V (+10% Range) Boost reference voltage: VDD VSS2 = 1.8V to 3.3V Booster maximum voltage limited VOUT= -16.0V (+10% Range) Liquid crystal drive power supply: VDD V5 = 4.0V to 13.0 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.

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. Because the chips in the ST7565V contain 65x132 bits of display data RAM and there is a 1-to-1 correspondence between the LCD panel pixels and the internal RAM bits, these chips enable displays with a high degree of freedom.

The ST7565V chips contain 65 common output circuits and 132 segment output circuits, so that a single chip can drive a 65x132 dot display (capable of displaying 8 columnsx4 rows of a 16x16 dot kanji font).

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 LCD driver power supply, resistors for LCD driver power voltage adjustment and a display clock CR oscillator circuit, the ST7565V can be used to create the lowest power display system with the fewest components for high-performance portable devices.