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Help CenterMemory Mapping and Multifunctional Lcd Driver Chip - Fzh1621 Product
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1. Overview
Model: FZH1621
Manufacturer: Shenzhen Fangzhonghe Technology Co., Ltd. (Premier Chip Limited)
FZH1621 is a memory-mapped and multi-functional LCD driver. The software configuration features of FZH1621 make it suitable for a variety of LCD applications, including LCD modules and display subsystems. There are only 4 or 5 pins used to connect the main controller and FZH1621. FZH1621 also has a power-saving command to reduce system power consumption.
2. Functional Features Ø
Operating voltage: 2.4~ 5.2V
Built-in 256KHz RC oscillator
External 32KHz crystal or 256KHz frequency source input is available
Selectable 1/2 or 1/3 bias and 1/2, 1/3 or 1/4 duty cycle Ø
On-chip time base frequency source
The buzzer can select two frequencies
The power-saving command can be used to reduce power consumption
Built-in time base generator and watchdog timer (WDT) Ø
Time base or watchdog timer overflow output
Eight time base/watchdog timer clock sources
A 32x4 LCD driver
A built-in 32x4-bit display RAM memory
Four-wire serial interface
On-chip LCD drive frequency source
Software configuration features
Data mode and command mode instructions
Three data access modes
The VLCD pin is provided to adjust the LCD operating voltage
Package types: SSOP48, LQFP44, SOP16
3. Typical Application Circuit
This chip is suitable for low-power embedded display devices (such as meters and handheld devices). Combined with flexible software configuration, it can significantly simplify the hardware design.
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