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Date: September 04, 1986 10:46
From: SANDY::PAAUW
To: @SYS$MAIL:ENGINEER
VTI is redesigning the LETA chip for reasons that I won't go into here. As a result, some specs will change: 1) The data hold time (tOH), the time that the output data are valid after the address has changed, is currently spec'ed at a minimum of 30 nS. The new parameter will probably be under 20 nS. 2) The TEST pin will become a RESET pin that will zero all the counters for betters testability. The TEST pin was originally intended to feed the inputs to the data pins, essentially making the LETA a parallel port. However, this function never worked correctly so I don't think the change will have any effect. If anyone knows of any problems these changes may cause, please let me know by tomorrow, Sep. 5. Thanks, -- Don
Sep 04, 1986