Xilinx XC2C64A CPLD IC Low Power Programmable Logic Device

XILINX
XC2C64A CoolRunner-II CPLD

FEATURES

• Optimized for 1.8V systems

• As fast as 4.6 ns pin-to-pin logic delays
• As low as 15 µA quiescent current

• Industry’s best 0.18 micron CMOS CPLD

• Optimized architecture for effective logic synthesis
• Multi-voltage I/O operation — 1.5V to 3.3V

• Available in multiple package options

• 44-pin VQFP with 33 user I/Os
• 48-lead QFN with 37 user I/Os
• 56-ball CP BGA with 45 user I/Os
• 100-pin VQFP with 64 user I/Os
• Pb-free available for all packages

• Advanced system features

• Fastest in-system programming
• 1.8V ISP using IEEE 1532 (JTAG) interface
• IEEE1149.1 JTAG Boundary Scan Test
• Optional Schmitt-trigger input (per pin)
• Two separate I/O banks
• RealDigital 100% CMOS product term generation
• Flexible clocking modes
  • Optional DualEDGE triggered registers
• Global signal options with macrocell control
  • Multiple global clocks with phase selection per macrocell
  • Multiple global output enables
  • Global set/reset
• Efficient control term clocks, output enables, and set/resets for each macrocell and shared across function blocks
• Advanced design security
• Optional bus-hold, 3-state, or weak pullup on selected I/O pins
• Open-drain output option for Wired-OR and LED drive
• Optional configurable grounds on unused I/Os
• Mixed I/O voltages compatible with 1.5V, 1.8V, 2.5V, and 3.3V logic levels
• PLA architecture
  • Superior pinout retention
  • 100% product term routability across function block
• Hot pluggable

Refer to the CoolRunner-II family data sheet for architecture description.

DESCRIPTION

The CoolRunner-II 64-macrocell device is designed for both high performance and low power applications. This lends power savings to high-end communication equipment and high speed to battery operated devices. Due to the low power stand-by and dynamic operation, overall system reliability is improved.

This device consists of four Function Blocks inter-connected by a low power Advanced Interconnect Matrix (AIM). The AIM feeds 40 true and complement inputs to each Function Block. The Function Blocks consist of a 40 by 56 Product Term PLA and 16 macrocells which contain numerous configuration bits that allow for combinational or registered modes of operation.

Additionally, these registers can be globally reset or preset and configured as a D or T flip-flop or as a D latch. There are also multiple clock signals, both global and local product term types, configured on a per macrocell basis. Output pin configurations include slew rate limit, bus hold, pull-up, open drain, and programmable grounds. A Schmitt trigger input is available on a per input pin basis. In addition to storing macrocell output states, the macrocell registers can be configured as “direct input” registers to store signals directly from input pins.

Clocking is available on a global or Function Block basis. Three global clocks are available for all Function Blocks as a synchronous clock source. Macrocell registers can be individually configured to power up to the zero or one state. A global set/reset control line is also available to asynchronously set or reset selected registers during operation. Additional local clock, synchronous clock-enable, asynchronous set/reset, and output enable signals can be formed using product terms on a per-macrocell or per-Function Block basis.

A DualEDGE flip-flop feature is also available on a per macrocell basis. This feature allows high performance synchronous operation based on lower frequency clocking to help reduce the total power consumption of the device.

The CoolRunner-II 64-macrocell CPLD is I/O compatible with standard LVTTL and LVCMOS18, LVCMOS25, and LVCMOS33 (see Table 1). This device is also 1.5V I/O compatible with the use of Schmitt-trigger inputs.

Another feature that eases voltage translation is I/O banking. Two I/O banks are available on the CoolRunner-II 64A macrocell device that permit easy interfacing to 3.3V, 2.5V, 1.8V, and 1.5V devices.