HT1623
RAM Mapping 48´8 LCD Controller for I/O MCU
PATENTED
PAT No. : 099352
Technical Document
· Tools Information
· FAQs
· Application Note
Features
· Operating voltage: 2.7V~5.2V
· Built-in LCD display RAM
· Built-in RC oscillator
· R/W address auto increment
· External 32.768kHz crystal or 32kHz frequency
· Two selection buzzer frequencies (2kHz or 4kHz)
source input
· Power down command reduces power consumption
· 1/4 bias, 1/8 duty, frame frequency is 64Hz
· Software configuration feature
· Max. 48´8 patterns, 8 commons, 48 segments
· Data mode and Command mode instructions
· Built-in internal resistor type bias generator
· Three data accessing modes
· 3-wire serial interface
· VLCD pin to adjust LCD operating voltage
· 8 kinds of time base or WDT selection
· 100-pin QFP package
· Time base or WDT overflow output
General Description
HT1623 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 HT1623. The HT162X series
have many kinds of products that match various applications.
HT1623 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 384 patterns
(48´8). It also supports serial interface, buzzer sound,
watchdog timer or time base timer functions. The
HT1623 is a memory mapping and multi-function LCD
controller. The software configuration feature of the
Selection Table
HT162X
HT1620
HT1621
HT1622
HT16220
HT1623
HT1625
HT1626
COM
4
4
8
8
8
8
16
SEG
32
32
32
32
48
64
48
Built-in Osc.
¾
Ö
Ö
¾
Ö
Ö
Ö
Crystal Osc.
Ö
Ö
¾
Ö
Ö
Ö
Ö
Rev. 1.30
1
March 19, 2009
