At 01:00 PM 5/29/97 -0400, you wrote:
>At 04:32 PM 5/29/97 GMT+0200, you wrote:
>>Hi,
>>
>>I bought a few JW devices (x54,x56,x57) about two years ago.  These
>>devices erased in about 4 minutes under my eraser.  Recently I
>>bought another x57 and this chip takes 12+ minutes to erase under the
>>same lamp!  Is the part suspect or have Microchip made their devices a
>>bit harder to erase in the last two years?
>
>Look in the window and compare die sizes.

>Andy

Exactly! If the die is smaller, allow more erase time.

Jim

>
>======================================================================
>Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865 USA
>              Electronics for Industry & R/C Hobbyists
>         "Go fast, turn right, and keep the wet side down!"
>======================================================================
>
>