ATF1504BE datasheet(2/30 Pages) ATMEL

2 / 30 page

3637B–PLD–1/08

ATF1504BE

Enhanced Features

• Improved Connectivity (Additional Feedback Routing, Alternate Input Routing)

• Output Enable Product Terms

• Outputs Can Be Configured for High or Low Drive

• Combinatorial Output with Registered Feedback and Vice Versa within each Macrocell

• Three Global Clock Pins

• Fast Registered Input from Product Term

• Pull-up Option on TMS and TDI JTAG Pins

• OTF (On-the-Fly) Reconfiguration Mode

• DRA (Direct Reconfiguration Access)

Description

The ATF1504BE is a high-performance, high-density complex programmable logic device

(CPLD) that utilizes Atmel’s proven electrically-erasable memory technology. With 64 logic mac-

rocells and up to 68 inputs, it easily integrates logic from several TTL, SSI, MSI, LSI and classic

PLDs. The ATF1504BE’s enhanced routing switch matrices increase usable gate count and the

odds of successful pin-locked design modifications.

The ATF1504BE has up to 64 bi-directional I/O pins and four dedicated input pins. Each dedi-

cated input pin can also serve as a global control signal, register clock, register reset or output

enable. Each of these control signals can be selected for use individually within each macrocell.

Figures 1-1 and 1-2 show the pin assignments for the 100-lead and 44-lead TQFP packages

respectively.

ATF1504BE Fiches technique(PDF) 2 Page - ATMEL Corporation