XC9572XV_07 Datasheet, PDF (1/9 Pages) Xilinx, Inc – Optimized for high-performance 2.5V systems

0
R
XC9572XV High-performance
CPLD
DS052 (v3.0) June 25, 2007
0 5 _{Product Specification}
Note: This product is being discontinued. You cannot
order parts after May 14, 2008. Xilinx recommends replac-
ing XC9572XV devices with equivalent XC9572XL devices
in all designs as soon as possible. Recommended replace-
ments are pin compatible, however require a V_CC change to
3.3V, and a recompile of the design file. In addition, there is
no 1.8V I/O support. See XCN07010 for details regarding
this discontinuation, including device replacement
recomendations for the XC9572XV CPLD.
Features
• 72 macrocells with 1,600 usable gates
• Available in small footprint packages
- 44-pin VQFP (34 user I/O pins)
- 100-pin TQFP (72-user I/O pins)
• Optimized for high-performance 2.5V systems
- Low power operation
- Multi-voltage operation
• Advanced system features
- In-system programmable
- Superior pin-locking and routability with
Fast CONNECT™ II switch matrix
- Extra wide 54-input Function Blocks
- Up to 90 product-terms per macrocell with
individual product-term allocation
- Local clock inversion with three global and one
product-term clocks
- Individual output enable per output pin
- Input hysteresis on all user and boundary-scan pin
inputs
- Bus-hold ciruitry on all user pin inputs
- 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
- 20 year data retention
- ESD protection exceeding 2,000V
Description
The XC9572XV is a 2.5V CPLD targeted for high-perfor-
mance, low-voltage applications in leading-edge communi-
cations and computing systems. It is comprised of four
54V18 Function Blocks, providing 1,600 usable gates with
propagation delays of 5 ns.
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 XC9500XV 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 I_CC, the following equation may be
used:
P_TOTAL = P_INT + P_IO = I_CCINT x V_CCINT + P_IO
Separating internal and I/O power here is convenient
because XC9500XV CPLDs also separate the correspond-
ing power pins. P_IO is a strong function of the load capaci-
tance driven, so it is handled by I = CVf. I_CCINT is another
situation that reflects the actual design considered and the
internal switching speeds. An estimation expression for
I_CCINT (taken from simulation) is:
I_CCINT(mA) = MC_HS(0.122 X PT_HS + 0.238) + MC_LP(0.042 x
PT_LP + 0.171) + 0.04(MC_HS + MC_LP) x f_MAX x MC_TOG
where:
MC_HS = # macrocells used in high speed mode
MC_LP = #macrocells used in low power mode
PT_HS = average p-terms used per high speed macrocell
PT_LP = average p-terms used over low power macrocell
f_MAX = max clocking frequency in the device
MC_TOG = % macrocells toggling on each clock (12% is
frequently a good estimate
This calculation was derived from laboratory measurements
of an XC9500XV part filled with 16-bit counters and allowing
a single output (the LSB) to be enabled. The actual I_CC
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
application note XAPP361, “Planning for High Speed
XC9500XV Designs.”
110
90
70
High ^Performance
50
Low ^Power
30
10
0
50
100
150
200
Clock F requency (MHz)
DS052_01_041405
© 2006, 2007 Xilinx, Inc. All rights reserved. All Xilinx trademarks, registered trademarks, patents, and disclaimers are as listed at http://www.xilinx.com/legal.htm.
All other trademarks and registered trademarks are the property of their respective owners. All specifications are subject to change without notice.
DS052 (v3.0) June 25, 2007
www.xilinx.com
1
Product Specification