HT1621B - RAM Mapping 32x4 LCD Controller for I/O MCU - Holtek Semiconductor Inc
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
324 LCD driver
Built-in 324 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
HT1621D: 28-pin SKDIP package
HT1621G: Gold bumped chip
**注意 & Noted:
Because of wholesale price is different from sample price, our website cannot state. Please contact us online. As well as welcome you call us : 0755-83957301.We will offer a right price; Sometimes manufacturer's price is unstable, so we don't adjust price in time. if you feel price is a little high for you, just feel free to contact us for consultation. Thank you for your support !
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