I hope this clears it up.
At 10:08 AM 4/17/98 -0500, Bill Dempsey wrote:
>Ramzi Ammar wrote:
>> John, Texas Instruments offer 2 devices that were designed
>> specifically for
>> VME64 bus,
>> The SN74ABTE16245 and the SN74ABTE16246. Both devices have tighter
>> threshold than the
>> normal TTL std parts, however, they are backward compatible with TTL,
>> (VILMIN=1.4V vs 0.8V-TTL and VIHMAX=1.6V vs 2V-TTL). These specs help
>> eliminate the
>> glitches due to a wider noise margin.
>> Ramzi Ammar
>> Texas Instruments
>Seems like a *smaller* NOISE margin.... now it's 0.2v vs TTL's 1.2v...
>Food for thought.