DS050 (v3.0) June 25, 2007 www.xilinx.com 1
Product Specification
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u
Note: This product is being discontinued. You cannot
order parts after May 14, 2008. Xilinx recommends replac-
ing XC95288XV devices with equivalent XC95288XL
devices in all designs as soon as possible. Recommended
replacements are pin compatible, however require a V
CC
change to 3.3V, and a recompile of the design file. In addi-
tion, there is no 1.8V I/O support, and only one output bank
is supported. See XCN07010
for details regarding this dis-
continuation, including device replacement recomendations
for the XC95288XV CPLD.
Features
• 288 macrocells with 6,400 usable gates
• Available in small footprint packages
- 144-pin TQFP (117 user I/O pins)
- 208-pin PQFP (168 user I/O pins)
- 280-pin CSP (192 user I/O pins)
- 256-pin FBGA (192 user I/O pins)
• Optimized for high-performance 2.5V systems
- Low power operation
- Multi-voltage operation
• Advanced system features
- In-system programmable
- Four separate output banks
- 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 XC95288XV 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 16
54V18 Function Blocks, providing 6,400 usable gates with
propagation delays of 6 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
0
XC95288XV High-Performance
CPLD
DS050 (v3.0) June 25, 2007
05
Product Specification
R
Product Obsolete/Under Obsolescence
