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ATF1504AS_05 Datasheet(数据表) 5 Page - ATMEL Corporation |
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ATF1504AS Datasheet(HTML) 5 Page - ATMEL Corporation |
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5 page 
5 ATF1504AS(L) 0950O–PLD–7/05 Block Diagram Unused product terms are automatically disabled by the compiler to decrease power consumption. A security fuse, when programmed, protects the contents of the ATF1504AS. Two bytes (16 bits) of User Signature are accessible to the user for pur- poses such as storing project name, part number, revision or date. The User Signature is accessible regardless of the state of the security fuse. The ATF1504AS device is an in-system programmable (ISP) device. It uses the indus- try-standard 4-pin JTAG interface (IEEE Std. 1149.1), and is fully-compliant with JTAG’s Boundary-scan Description Language (BSDL). ISP allows the device to be programmed without removing it from the printed circuit board. In addition to simplifying the manufac- turing flow, ISP also allows design modifications to be made in the field via software. I/O (MC64)/GCLK3 |
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