Low Voltage LCD Controller & Driver - RAM Mapping 52*4 / 48*8 LCD Driver

The HT16L23 device is a memory mapping and multi-function LCD controller driver. The Display segments of the device are 208 patterns (52 segments and 4 commons) for 1/4 duty display or 384 patterns (48 segments and 8 commons) for 1/8 duty display. It can also support LED drive outputs on certain Segment pins. The software configuration feature of the HT16L23 device makes it suitable for multiple LCD applications including LCD modules and display subsystems. The HT16L23 device communicates with most microprocessors/microcontrollers via a two-wire bidirectional I2C-bus or a three-wire SPI interface.

Features:

• logic operating voltage:1.8V~5.5V
• LCD operating voltage (VLCD):2.4V~6.0V
• internal 32kHz RC oscillator
• bias: 1/3 or 1/4; Duty: 1/4 or 1/8
• internal LCD bias generation with voltage-follower buffers
• external VLCD pin to supply LCD operating voltage
• integrated regulator to adjust LCD operating voltage: 3.0V, 3.2V, 3.3V, 3.4V, 4.4V, 4.5V, 4.6V, 5.0V
• integrated LED driver
• support I2C-bus or SPI 3-wire serial interface controlled by IFS pin
• four selectable LCD frame frequencies: 64Hz or 85.3Hz or 128Hz or 170.6Hz
• up to 48×8 bits RAM for display data storage
• display patterns:
• –52×4 patterns: 52 segments and 4 commons
• –48×8 patterns: 48 segments and 8 commons
• support two driver output mode Segment/LED on SEG44~SEG51/LED7~LED0
• versatile blinking modes: off, 0.5Hz, 1Hz, 2Hz
• R/W address auto increment
• low power consumption
• manufactured in silicon gate CMOS process

Specification:

• VDD: 1.8V~5.5V
• segment x common: 52×4, 48×8
• LCD voltage: 2.4V~6.0V
• bias: 1/3, 1/4
• LED driver: 8x1
• interface: I²C, SPI 3-Wire
• case: 64LQFP