DS055 (v2.1 April 3, 2007
1
Product Specification
1-800-255-7778
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Features
6 ns pin-to-pin logic delays
System frequency up to 208 MHz
288 macrocells with 6,400 usable gates
Available in small footprint packages
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144-pin TQFP (117 user I/O pins)
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208-pin PQFP (168 user I/O pins)
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256-pin BGA (192 user I/O pins)
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256-pin FBGA (192 user I/O pins)
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280-pin CSP (192 user I/O pins)
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Pb-free available for all packages
Optimized for high-performance 3.3V systems
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Low power operation
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5V tolerant I/O pins accept 5V, 3.3V, and 2.5V
signals
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3.3V or 2.5V output capability
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Advanced 0.35 micron feature size CMOS
Fast FLASH technology
Advanced system features
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In-system programmable
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Superior pin-locking and routability with
Fast CONNECT II switch matrix
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Extra wide 54-input Function Blocks
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Up to 90 product-terms per macrocell with
individual product-term allocation
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Local clock inversion with three global and one
product-term clocks
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Individual output enable per output pin with local
inversion
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Input hysteresis on all user and boundary-scan pin
inputs
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Bus-hold circuitry on all user pin inputs
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Full IEEE Standard 1149.1 boundary-scan (JTAG)
Fast concurrent programming
Slew rate control on individual outputs
Enhanced data security features
Excellent quality and reliability
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Endurance exceeding 10,000 program/erase
cycles
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20 year data retention
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ESD protection exceeding 2,000V
Pin-compatible with 5V-core XC95288 device in the
208-pin HQFP package
WARNING: Programming temperature range of
TA = 0° C to +70° C
Description
The XC95288XL is a 3.3V CPLD targeted for high-perfor-
mance, low-voltage applications in leading-edge communi-
cations and computing systems. It is comprised of 16
54V18 Function Blocks, providing 6,400 usable gates with
propagation delays of 6 ns. See
Figure 2 for architecture
overview.
Power Estimation
Power dissipation in CPLDs can vary substantially depend-
ing on the system frequency, design application and output
loading. To help reduce power dissipation, each macrocell
in a XC9500XL device may be configured for low-power
mode (from the default high-performance mode). In addi-
tion, unused product-terms and macrocells are automati-
cally deactivated by the software to further conserve power.
For a general estimate of ICC, the following equation may be
used:
ICC(mA) = MCHS(0.175*PTHS + 0.345) + MCLP(0.052*PTLP
+ 0.272) + 0.04 * MCTOG(MCHS +MCLP)* f
where:
MCHS = # macrocells in high-speed configuration
PTHS = average number of high-speed product terms
per macrocell
MCLP = # macrocells in low power configuration
PTLP = average number of low power product terms per
macrocell
f = maximum clock frequency
MCTOG = average % of flip-flops toggling per clock
(~12%)
This calculation was derived from laboratory measurements
of an XC9500XL part filled with 16-bit counters and allowing
a single output (the LSB) to be enabled. The actual ICC
value varies with the design application and should be veri-
fied during normal system operation.
Figure 1 shows the
above estimation in a graphical form. For a more detailed
discussion of power consumption in this device, see Xilinx
0
XC95288XL High Performance
CPLD
DS055 (v2.1 April 3, 2007
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Product Specification
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