ATF1500ABV

The ATF1500ABV is a high performance, high density Complex PLD. Built on an advanced Flash technology, it has maximum pin to pin delays of 12 ns and supports sequential logic operation at speeds up to 90.9 MHz. With 32 logic macrocells and up to 36 inputs, it easily integrates logic from several TTL, SSI, MSI and classic PLDs.

The ATF1500ABV’s global input and feedback architecture simplifies logic placement and eliminates pinout changes due to design changes.The ATF1500ABV has 32 bi-directional I/O pins and 4 dedicated input pins.

Each dedicated 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.

Each of the 32 logic macrocells generates a buried feed back, which goes to the global bus. Each input and I/O pin also feeds into the global bus. Because of this global bussing, each of these signals is always available to all 32 macrocells in the device. Each macrocell also generates a foldback logic term, which goes to a regional bus. All signals within a regional bus are connected to all 16 macrocells within the region.

Cascade logic between macrocells in the ATF1500ABV allows fast, efficient generation of complex logic functions.

The ATF1500ABV contains 4 such logic chains, each capable of creating sum term logic with a fan in of up to 40
product terms.