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6 inch Silicon wafer collectors set – DS87C520 CPU wafer and DS87C520 CPU chip.
$38.27
104
- Restocking Fee: No
- Item must be returned within: 30 Days
- All returns accepted: Returns Accepted
- Return shipping will be paid by: Seller
- Condition: Wafer is eye-clean, no cracks, chips or visible scratches.
- Refund will be given as: Money Back
Description
The DS87C520/DS83C520 EPROM/ROM high-speed microcontrollers were fast
8051-compatible microcontrollers. They featured a redesigned processor
core without wasted clock and memory cycles.
As a result, the
devices execute every 8051 instruction between 1.5 and 3 times faster
than the original for the same crystal speed. Typical applications will
see a speed improvement of 2.5 times using the same code and the same
crystal.
Wafer is 6 inches across (150mm) and was fabricated by Dallas Semiconductor in 1994. The wafer is in excellent condition, no scratches, chips, or other blemishes and over 200 CPUs are on it. The wafer colors will vary depending on viewing angle and lighting conditions.
The processor chip is new looking condition, but untested (no scratches or chips in the package, no bent pins, no solder on the pins) .
Photos were taken under ordinary incandescent room light.
I’ve got a wide selection of other collectable wafers in my store.
Thanks for looking!
