400pcs NuvoTon W584B015 4bit speech MCU silicon dies wafer FREE SHIPPING

Description

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400pcs NuvoTon W584B015 4bit speech microrontroller, individual silicon dies
You are purchasing a full tray of 400pcs NuvoTon W58B015 4bit MCU silicon dies. The plastic tray measure 5cm x 5cm, and each individual die measure 2.00mm x 1.30mm. These represent a great example of semiconductor manufacturing technology from 2004 and makes for great educational, collection and display item. The dies will produce shiny, multicolored rainbow reflection with light, like a CD. The dies are new old stock, never used, and will be packaged safely. Please look at the photos carefully.
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The W584B015 is a 4-bit microcontroller-based speech synthesizer with PWM mode output to drive the speaker directly. The synthesizer contains one voice-channel. It has Ultra I/O™, W584B015 which simplifies the procedure of defining the output pattern. W584B015 operates over a wide voltage range from 2.2V – 5.5V and built in PWM/DAC audio output, IR, WDT and LVR.
Audio output with PWM and DAC
128 nibble RAM
460kb ROM
8 pins high current sink
8 general purpose I/O
System clock 4, 6, 8 MHz
Operating voltage 2.2 - 5.5V
Shipping, handling and return
Payment is due within seven days of auction end. Free shipping is included in the final price to any location worldwide. If you would like to use a specific shipping service such as registered and/or express, please contact me for a quote. Shipping will be done within three business day from payment receipt, item will be shipped from Paris France. The lot is sold as is. If for some reason you are not pleased with your purchase please contact me, I will work with you to solve the problem, or accept a return of the item on the day of arrival without restocking fee (return shipping at your expense).
I combine shipping!
Thank you very much for looking at my items and happy eBaying!
Other silicon die products for sale
I have listed a variety of silicon dies that you can find by searching my eBay items for sale. The image below shows them to scale for reference.