Details

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BUY XC3S250E-4PQ208C https://www.utsource.net/itm/p/1327387.html
XC3S250E-4PQ208C

Parameter	Description
Device	XC3S250E-4PQ208C
Family	Spartan-3E
Logic Cells	250
I/O Banks	15
Package	PQFP (Plastic Quad Flat Pack) with 208 pins
Speed Grade	-4 (Fastest speed grade available for this device)
Configuration Memory	Internal, non-volatile Flash memory
JTAG Boundary Scan	Yes
Operating Temperature	Commercial: 0掳C to 70掳C
Supply Voltage	Vcco = 1.8V, 2.5V, or 3.3V; Vccint = 1.2V
Clock Resources	4 Digital Clock Managers (DCMs)
Block RAM	128 Kbits
Multiplier Resources	4 18x18 multipliers
Configuration Mode	Master, Slave, BPI (Byte-wide Parallel Interface), SPI, SelectMAP

Instructions for Use:

1. Power Supply Requirements:

   • Ensure that the supply voltages (Vcco and Vccint) are within specified ranges.
   • Vcco can be set to 1.8V, 2.5V, or 3.3V depending on the I/O standards used.
   • Vccint must be set to 1.2V.

2. Configuration:

   • The device can be configured using various modes such as Master, Slave, BPI, SPI, or SelectMAP.
   • For initial configuration, refer to the Xilinx Platform Cable USB manual for JTAG programming.

3. Clock Management:

   • Utilize the DCMs for clock synthesis, phase shifting, and duty cycle correction.
   • Ensure proper setup and hold times for all clock signals.

4. Operating Environment:

   • Operate within the commercial temperature range of 0掳C to 70掳C to ensure reliable performance.
   • Avoid exposing the device to extreme temperatures outside this range.

5. Handling:

   • Handle with care to avoid ESD damage. Always use proper ESD protection measures.
   • Follow guidelines for soldering and PCB layout as detailed in Xilinx application notes.

6. Testing and Debugging:

   • Use JTAG boundary scan for testing and debugging circuits.
   • Leverage Xilinx tools like iMPACT for configuration and ChipScope Pro for in-system debugging.

7. Documentation:

   • Refer to the Spartan-3E data sheet and user guides for detailed information on design flows, timing analysis, and advanced features.

(For reference only)