|
HT1621
-- RAM Mapping 32x4 LCD Controller for I/O MCU
概要
The
HT1621 is a 128 pattern (32x4), memory mapping,
and multi-function LCD driver. The S/W
configuration feature of the HT1621 makes it
suitable for multiple LCD applications including
LCD modules and display subsystems. Only three
or four lines are required for the interface
between the host controller and the HT1621. The
HT1621 contains a power down command to reduce
power consumption.
|
特点
- Operating voltage : 2.4V~5.2V
- Built-in 256kHz RC oscillator
- External 32.768kHz crystal or
256kHz frequency source input
- Selection of 1/2 or 1/3 bias, and
selection of 1/2 or 1/3 or 1/4 duty
LCD applications
- Internal time base frequency
sources
- Two selectable buzzer frequencies
(2kHz/4kHz)
- Power down command reduces power
consumption
- Built-in time base generator and
WDT
- Time base or WDT overflow output
- 8 kinds of time base/WDT clock
sources
- 32x4 LCD driver
- Built-in 32x4 bit display RAM
- 3-wire serial interface
- Internal LCD driving frequency
source
- Software configuration feature
- Data mode and command mode
instructions
- R/W address auto increment
- Three data accessing modes
- VLCD pin for adjusting LCD
operating voltage
- HT1621: 48-pin SSOP package
HT1621B: 48-pin DIP/SSOP/LQFP
package
|
|
