Global Sources
EE Times-Asia
Stay in touch with EE Times Asia
?
EE Times-Asia > Controls/MCUs
?
?
Controls/MCUs??

Maxim controller manages 96-character VFDs

Posted: 26 Nov 2002 ?? ?Print Version ?Bookmark and Share

Keywords:maxim integrated products? max6850? vfd controller? vacuum fluorescent display?

The MAX6850 vacuum-fluorescent display (VFD) controller from Maxim Integrated Products controls a starburst numeric or alphanumeric VFD up to 96 characters and supports displays with either 1 or 2 characters per grid.

Suitable for display with predominantly 7-segment, 14-segment, and 16-segment alphanumeric characters, the IC has an embedded 104-character font and 24 character of user-defined fonts. It also has multiplex timing control, filament timing for flicker-free displays, and 16-step digital brightness control.

An internal output map works like a crosspoint switch to connect any tube-driver pin to any grid or anode. The driver is therefore compatible with any VFD tube-driver combination, including chip-in-glass. A cursor segment and up to four annunciators may be assigned per grid, each with independent two-phase blink control.

The MAX6850 also provides timing to generate PWM waveforms to bridge-drive the VFD filament from a dc supply. The filament drive is synchronized to the display multiplexing to eliminate beat artifacts. Dead-clock protection is built-in, protecting the display in the event of a multiplex clock failure.

Available in a 16-pin, 6-by-9.9mm QSOP, the MAX6850 operates from a 2.7V to 3.6V supply and is rated for operation over the -40C to 125C temperature range.





Article Comments - Maxim controller manages 96-characte...
Comments:??
*? You can enter [0] more charecters.
*Verify code:
?
?
Webinars

Seminars

Visit Asia Webinars to learn about the latest in technology and get practical design tips.

?
?
Back to Top