ATMEL RISC based controller with ;
20MHz Risc operation with 1 clock per instruction
8 pin DIP package
Internal or External frequency control
SPI or USART
4 10 BIT A/D
-40 to 85 C a rugged device meant for automotive use
Power Down mode.
2.7V to 5.5V operation
Bad news, as the volume of sold chips has gone down I need to order in smaller quantities which raises the price of the parts and I must pass it on.
Reguarding versions to flash the chip with;
V15.12 is the version that Tony shipped with the kits until recently.
V15.14 contains fixes for use with the VHF SoftRock, and lets you have the filter bands out of order, while it's V15.12 compatible.
V15.15 contains code to identify and use the newer version of the SI570 chips, it's compatible with V15.12, and V15.14, this is the currently shipped version.
Its recomended that one use the latest version (V15.15) as that version incorporates all the changes and added features of the previous versions.
Discounts at qty of 3, 5, 10 or greater, contact me for discounts at greater quantities.