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PDF IZ1621 Data sheet ( Hoja de datos )

Número de pieza IZ1621
Descripción RAM Mapping 32x4 LCD Controller
Fabricantes IK Semiconductor 
Logotipo IK Semiconductor Logotipo



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No Preview Available ! IZ1621 Hoja de datos, Descripción, Manual

RAM Mapping 32x4 LCD Controller for I/O µC
TECHNICAL DATA
IZ1621
The IZ1621 is a 128 pattern (32x4), memory mapping, and multi-function LCD driver. The S/W configuration
feature of the IZ1621 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
IZ1621 contains a power down command to reduce power consumption.
FEATURES
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
BLOCK DIAGRAM
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
Note: CS: Chip selection
BZ, BZ: Tone outputs
WR, RD, DATA: Serial interface
COM0~COM3, SEG0~SEG31: LCD outputs
IRQ: Time base or WDT overflow output
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IZ1621 pdf
Pad Diagram
IZ1621
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