Description
The ATF1504AS is a high performance, high density Complex Programmable Logic Device (CPLD) which utilizes Atmel’s proven electrically erasable memory technology.

Features
• High Density, High Performance Electrically Erasable Complex Programmable Logic Device
    – 64 Macrocells
    – 5 Product Terms per Macrocell, Expandable up to 40 per Macrocell
    – 44, 68, 84, 100 pins
    – 7 ns Maximum Pin-to-Pin Delay
    – Registered Operation Up To 100 MHz
    – Enhanced Routing Resources
• In-System Programmability (ISP) via JTAG
• Flexible Logic Macrocell
    – D/T/Latch Configurable Flip Flops
    – Global and Individual Register Control Signals
    – Global and Individual Output Enable
    – Programmable Output Slew Rate
    – Programmable Output Open Collector Option
    – Maximum Logic utilization by burying a register within a COM output
• Advanced Power Management Features
    – Automatic 100 µA Stand-By for “Z” Version
    – Pin-Controlled 4 mA Stand-By Mode (Typical)
    – Programmable Pin-Keeper Inputs and I/Os
    – Reduced-Power Feature Per Macrocell
• Available in Commercial and Industrial Temperature Ranges
• Available in 44-, 68-, and 84-pin PLCC; 44- and 100-pin TQFP; and 100-pin PQFP
• Advanced EE Technology
    – 100% Tested
    – Completely Reprogrammable
    – 100 Program/Erase Cycles
    – 20 Year Data Retention
    – 2000V ESD Protection
    – 200 mA Latch-Up Immunity
• JTAG Boundary-Scan Testing to IEEE Std. 1149.1-1990 and 1149.1a-1993 Supported
• PCI-compliant
• 3.3 or 5.0V I/O pins
• Security Fuse Feature

Enhanced Features
• Improved Connectivity (Additional Feedback Routing, Alternate Input Routing)
• Output Enable Product Terms
• D - Latch Mode
• Combinatorial Output with Registered Feedback within any Macrocell
• Three Global Clock Pins
• ITD (Input Transition Detection) Circuits on Global Clocks, Inputs and I/O
• Fast Registered Input from Product Term
• Programmable “Pin-Keeper” Option
• VCC Power-Up Reset Option
• Pull-Up Option on JTAG Pins TMS and TDI
• Advanced Power Management Features
    – Edge Controlled Power Down “L”
    – Individual Macrocell Power Option
    – Disable ITD on Global Clocks, Inputs and I/O