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HT1622
-- RAM Mapping 32x8 LCD Controller for I/O MCU
概要
HT1622
is a peripheral device specially designed for
I/O type MCU used to expand the display
capability. The max. display segment of the
device are 256 patterns (32x8). It also supports
serial interface, buzzer sound, watchdog timer
or time base timer functions. The HT1622 is a
memory mapping and multi-function LCD
controller. The software configuration feature
of the HT1622 make it suitable for multiple LCD
applications including LCD modules and display
subsystems. Only three lines are required for
the interface between the host controller and
the HT1622. The HT162X series have many kinds of
products that match various applications.
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特点
- Operating voltage: 2.7V~5.2V
- Built-in RC oscillator
- 1/4 bias, 1/8 duty, frame
frequency is 64Hz
- Max. 32x8 patterns, 8 commons, 32
segments
- Built-in internal resistor type
bias generator
- 3-wire serial interface
- 8 kinds of time base or WDT
selection
- Time base or WDT overflow output
- Built-in LCD display RAM
- R/W address auto increment
- Two selectable buzzer frequencies
(2kHz/4kHz)
- Power down command reduces power
consumption
- Software configuration feature
- Data mode and Command mode
instructions
- Three data accessing modes
- VLCD pin to adjust LCD operating
voltage
- Cascade application
- 64-pin QFP package
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