详细信息
ht1625 -- ram mapping 64x8lcd controller for i/o mcu
generaldescription
ht1625 is a peripheral device specially designed for i/o typemcu used to expand the display capability. the max. display segmentof the device are 512 patterns (64x8). it also supports serialinterface, buzzer sound, watchdog timer or time base timerfunctions. the ht1625 is a memory mapping and multi-function lcdcontroller. the software configuration feature of the ht1625 makeit suitable for multiple lcd applications including lcd modules anddisplay subsystems. only three lines are required for the interfacebetween the host controller and the ht1625. the ht162x series havemany kinds of products that match various applications.
features
· operating voltage: 2.7v~5.2v
· built-in rc oscillator
· external 32.768khz crystal or 32khz frequency source input
· 1/4 bias, 1/8 duty, frame frequency is 64hz
· max. 64x8 patterns, 8 commons, 64 segments
· built-in internal resistor type bias generator
· 3-wire serial interface
· 8 kinds of time base/wdt selection
· time base or wdt overflow output
· built-in lcd display ram
· r/w address auto increment
· two selectable buzzer frequencies (2khz/4khz)
· power down command reduces power consumption
· software configuration feature
· data mode and command mode instructions
· three data accessing modes
· vlcd pin to adjust lcd operating voltage
· cascade application
· 100-pin lqfp package

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