XC2C128-7TQG144I

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The XC2C128-7TQG144I falls within the category of popular embedded-CPLDs (Complex Programmable Logic Devices). It is a CMOS integrated circuit featuring a very small footprint and integrated programmable logic with high system flexibility. This low-cost PLD is targeted at applications where space is limited.

The XC2C128-7TQG144I features 128 macrocells, 144 I/O pins, and 5,640 usable gates. The device comes in a 7 x 7 mm 64-pin TQFP package that is optimal for handheld, battery-operated products, as well as for surface mount assembly for cost-sensitive, high-volume applications. It also features 3.3 V I/Os, where 5 V tolerance is needed on I/O pins, or can be programmed for high speed, bidirectional I/Os.

To accommodate a wide range of logic and timing requirements, the XC2C128-7TQG144I offers dedicated macrocells, configurable logic blocks, I/O blocks, and Product Term Multiplexers (PTMUDX) to fit many design strategies. Its dedicated macrocells are suitable for implementing high speed combinational logic, while the configurable logic blocks (CLBs) have an internal nine-bit memory and provide on-chip look-up table (LUT) functionality. The CLBs also feature fast pin-to-pin propagation, zero-delay skew, and wide output drive capability. The I/O control logic in the XC2C128-7TQG144I has a small 9 ns delay and provides up to 64 bidirectional I/O pins for high speed operation. Other features of the device include a 512 kbit SRAM, 4 kbit EEPROM, 1,536 bit register based RAM, and a JTAG boundary scan interface.

The XC2C128-7TQG144I has one dedicated input and output port, with multiple operating modes available. Each port can be set to operate at either 3.3 V or 5 V, and the ports can be programmed for read/write, input/output, or bidirectional operation. Additionally, the port can be set to operate at various slew rates for low power applications, and can be configured for use with internal 3.4 ns synchronizers and signal conditioners. Additionally, the XC2C128-7TQG144I can operate at up to 80 MHz when clocked from an external source.

The working principle of the XC2C128-7TQG144I is based on programmable logic and the idea of configurable logic blocks. The device is designed to provide users with a high level of flexibility and reconfigurability to suit their needs. When using the XC2C128-7TQG144I, users are able to define their own logic functionality and interconnecting paths between the configurable elements. This includes the use of dedicated macros and CLBs, with their associated I/O ports, and the use of PTMUdx components. The device also has dedicated timing and clock distribution elements that can be used to regulate the speed of the logic.

The XC2C128-7TQG144I is suitable for a wide range of applications that require small form factor, low power consumption and highly flexible logic. These include ASIC prototyping, sensor interface, embedded control, portable medical and test equipment, embedded system designs, and many more. As such, it is often used as an alternative to costly ASICs or FPGAs for many cost-sensitive, high-volume applications.

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