HD66503

Features:

·  LCD timing generator: 1/120, 1/240 duty cycle internal generator
·  Alternating signal waveform generator: Pin programmable 2 to 63 line inversion
·  Recommended display duty cycle: 1/120, 1/240 (master mode): 1/120 to 1/240 (slave mode)
·  Number of LCD driver: 240
·  Power supply voltage: 2.7 to 5.5V
·  High voltage: 8 to 28-V LCD drive voltage
·  Low power consumption: 100 µA (during display)
·  Internal display off function
·  Oscillator circuit with standby function: 130 kHz (max)
·  Display timing operation clock: 65 kHz (max) (operating at 1/2 system clock)
·  Package: 272-pin TCP
·  CMOS process


Pinout




Specifications

Item		Symbol	Ratings	Unit	Notes
Power voltage	Logic circuit	VCC	0.3 to +7.0	V	2
	LCD drive circuit	VEE	VCC 30.0 to VCC + 0.3	V	5
Input voltage (1)		VT1	0.3 to VCC + 0.3	V	2, 3
Input voltage (2)		VT2	VEE 0.3 to VCC + 0.3	V	4, 5
Operating temperature		Topr	-20 to +75
Storage temperature		Tstg	40 to +125

Notes: 1. If the LSI is used beyond its absolute maximum rating, it may be permanently damaged. It should
               always  be used within the limits of its electrical characteristics in order to prevent malfunction
               or unreliability.
          2. Measured relative to GND (0V).
          3. Applies to all input pins except for V_1L, V_1R, V_2L, V_2R, V_5L, V_5R, V_6L, and V_6R, and to input/output pins
              in high-impedance state.
         4. Applies to pins V_1L, V_1R, V_2L, V_2R, V_5L, V_5R, V_6L, and V_6R.
         5. Apply the same voltage to pairs V_1L and V_1R, V_2L and V_2R, V_5L and V_5R, V_6L and V_6R, and V_EEL and V_EER.
             It is important to preserve the relationships V_CC1 = V_CC2 V_1L = V_1R V_6L = V_6R V_5L = V_5R V_2L = 
             V_2R     V_EEL = V_EER


Description

The HD66503 is a common driver for liquid crystal dot-matrix graphic display systems. This device incorporates a 240 liquid crystal driver and an oscillator, and generates timing signals (alternating signals and frame synchronizing signals) required for the liquid crystal display. It also achieves low current consumption of 100 µA through the CMOS process. Combined with the HD66520, a 160-channel column driver with an internal RAM, the HD66503 is optimal for use in displays for portable information tools.