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 [E³] designs, develops and manufactures several series of programmable, RGB-backlit LCD push-button switches.
The SA-SB-SI-SM switches are programmable LCD push-button switches with command-driven serial interfaces. They integrate a graphical liquid crystal display with RGB backlighting in a keyswitch.
The LCD keys are controlled via a serial interface to the integrated Advanced Technology™ electronics, which control the interface, display and backlighting. They self-initialize without external setup commands. Data only needs to be transmitted when a change is made to the display or background colors.
Only six contact terminals are needed to provide power, clock and data lines as well as switch contacts. The contact pins of the internal switch are isolated from the internal electronics.
This tables gives you an overview of the various features:
Features |
SA6432 |
SB6432 |
SI6432 |
SM6432 |
LCD Resolutions |
64 x 32 pixels |
LCD Type |
FSTN liquid crystal display |
Standard
transmissive |
Inverse transmissive |
Inverse transflective |
LED Backlighting |
64 RGB colors |
Over 10,000 RGB colors |
Interface Protocols |
Synchronous serial 8-bit interfaces (2-wire SPI)
Custom interfaces available upon request |
Command Set |
Standard |
Enhanced command set |
Clock Signal |
No external clock required
Absence of external clock will not harm switches |
Initialization |
Automatic self-initialization |
Maximum Speed |
Up to 2 MBaud |
Operating Voltage |
4.9 V to 5.1 V |
Power Consumption |
< 25 mA typical ; < 60 mA max. |
Keyswitch Type |
tactile, 2.5 mm travel
with overtravel protection |
Keyswitch Lifetime |
> 3.0 million cycles |
> 5.0 million cycles |
Temperatures |
0°C to 55°C (operating)
-20°C to 65°C (storage) |
Extended temperature range |
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