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HT16L21 - LCD Controller Driver

Description

The HT16L21 device is a memory mapping and multi-function LCD controller/driver.

The display segments of the device are 128 patterns (32 segments and 4 commons) display.

It can also support LED drive outputs on certain Segment pins.

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Full PDF Text Transcription

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www.DataSheet.co.kr HT16L21 RAM Mapping 32×4 LCD Driver Feature • Logic operating voltage: 1.8V~5.5V • LCD operating voltage (VLCD): 2.4V~6.0V • External VLCD pin to supply LCD operating voltage • Internal 32kHz RC oscillator • Bias: 1/2 or 1/3; Duty:1/4 • Internal LCD bias generation with voltage-follower buffers • 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 or SPI 3-wire serial interface controlled by IFS pin • Four selectable LCD frame frequencies: 64Hz or 85.3Hz or 128Hz or 170.6Hz • 32×4 bits RAM for display data storage • Max. 32×4 pixel: 32 segments and 4 commons • Support two driver output mode segment/LED on SEG24~SEG31/LED7~LED0 • Versatile blinking modes: off, 0.
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