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HT16L21

主要参数

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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产品描述

The software configuration feature of the HT16L21 device makes it suitable for multiple LCD applications including LCD modules and display subsystems. The HT16L21 device communicates with most microprocessors/microcontrollers via a two-wire bidirectional I2C or a three-wire SPI interface.

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, 0.5Hz, 1Hz, 2Hz
R/W address auto increment
Low power consumption
Manufactured in silicon gate CMOS process
Package types: 44LQFP