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Basic Information
Question 1
What is the VFD high drive voltage range for the HT16528?
Answer
The recommended drive voltage range for the VFD is between 20V and 50V, however the maximum voltage is 60V.
Question 2
What are the display modes for the HT16528 device?
Answer
The HT16528 display modes are 16 characters by 2 lines, 20 characters by 2 lines or 24 characters by 2 lines. Additionally an external driver device can increase the number to 40 characters by 2 lines.
Question 3
What kind of external communication channel interface exists for the HT16528?
Answer
For communication with external MCUs, the HT16528 supports parallel and serial data communication. For parallel data transfer it supports the M68 and i80 types. For series communication it uses a 3-line method, ST, SCK and SI/SO.
Points to Note
Question 1
On the HT16528, which has both a VDD pin and a VFD driver voltage VH pin, is there a requirement for which pin should have its power connected first?
Answer
For turn-on, first connect VDD, after which VH can be connected.
For turn-off, VH should be first disconnected, after which VDD can be disconnected.
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