16 Mar
2002
16 Mar
'02
3:24 a.m.
Tony Duell wrote:
>
> >> LK201:
I've seen 2. Both had membrane switches, but with
different
electronics. One using an 8051, the other using a 6805 (IIRC). The
8051 version is the common one over here.
Hmm...the exact opposite of my sampling! We still use significant
numbers of terminals at work, and most of the LK201s we have are the
CMOS green LED models, with Motorola 68HC05 controllers. These later
ones draw only about 100 mA with all LEDs and buzzer going, compared
with 350 mA for the pre-CMOS versions.
- Paul