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XC2C256 Datasheet Preview

XC2C256 Datasheet

CoolRunner-II CPLD

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R XC2C256 CoolRunner-II CPLD
DS094 (v3.2) March 8, 2007
00
Features
• Optimized for 1.8V systems
- As fast as 5.7 ns pin-to-pin delays
- As low as 13 μA quiescent current
• Industry’s best 0.18 micron CMOS CPLD
- Optimized architecture for effective logic synthesis.
Refer to the CoolRunner™-II family data sheet for
architecture description.
- Multi-voltage I/O operation — 1.5V to 3.3V
• Available in multiple package options
- 100-pin VQFP with 80 user I/O
- 144-pin TQFP with 118 user I/O
- 132-ball CP (0.5mm) BGA with 106 user I/O
- 208-pin PQFP with 173 user I/O
- 256-ball FT (1.0mm) BGA with 184 user I/O
- Pb-free available for all packages
• Advanced system features
- Fastest in system programming
· 1.8V ISP using IEEE 1532 (JTAG) interface
- IEEE1149.1 JTAG Boundary Scan Test
- Optional Schmitt-trigger input (per pin)
- Unsurpassed low power management
· DataGATE enable (DGE) signal control
- Two separate I/O banks
- RealDigital 100% CMOS product term generation
- Flexible clocking modes
· Optional DualEDGE triggered registers
· Clock divider (divide by 2,4,6,8,10,12,14,16)
· CoolCLOCK
- Global signal options with macrocell control
· Multiple global clocks with phase selection per
macrocell
· Multiple global output enables
· Global set/reset
- Advanced design security
- PLA architecture
· Superior pinout retention
· 100% product term routability across function
block
- Open-drain output option for Wired-OR and LED
drive
- Optional bus-hold, 3-state or weak pull-up on
selected I/O pins
- Optional configurable grounds on unused I/Os
- Mixed I/O voltages compatible with 1.5V, 1.8V,
2.5V, and 3.3V logic levels
· SSTL2-1, SSTL3-1, and HSTL-1 I/O compatibility
- Hot pluggable
Product Specification
Description
The CoolRunner™-II 256-macrocell device is designed for
both high performance and low power applications. This
lends power savings to high-end communication equipment
and high speed to battery operated devices. Due to the low
power stand-by and dynamic operation, overall system reli-
ability is improved
This device consists of sixteen Function Blocks inter-con-
nected by a low power Advanced Interconnect Matrix (AIM).
The AIM feeds 40 true and complement inputs to each
Function Block. The Function Blocks consist of a 40 by 56
P-term PLA and 16 macrocells which contain numerous
configuration bits that allow for combinational or registered
modes of operation.
Additionally, these registers can be globally reset or preset
and configured as a D or T flip-flop or as a D latch. There
are also multiple clock signals, both global and local product
term types, configured on a per macrocell basis. Output pin
configurations include slew rate limit, bus hold, pull-up,
open drain and programmable grounds. A Schmitt-trigger
input is available on a per input pin basis. In addition to stor-
ing macrocell output states, the macrocell registers may be
configured as "direct input" registers to store signals directly
from input pins.
Clocking is available on a global or Function Block basis.
Three global clocks are available for all Function Blocks as
a synchronous clock source. Macrocell registers can be
individually configured to power up to the zero or one state.
A global set/reset control line is also available to asynchro-
nously set or reset selected registers during operation.
Additional local clock, synchronous clock-enable, asynchro-
nous set/reset and output enable signals can be formed
using product terms on a per-macrocell or per-Function
Block basis.
A DualEDGE flip-flop feature is also available on a per mac-
rocell basis. This feature allows high performance synchro-
nous operation based on lower frequency clocking to help
reduce the total power consumption of the device.
Circuitry has also been included to divide one externally
supplied global clock (GCK2) by eight different selections.
This yields divide by even and odd clock frequencies.
The use of the clock divide (division by 2) and DualEDGE
flip-flop gives the resultant CoolCLOCK feature.
DataGATE is a method to selectively disable inputs of the
CPLD that are not of interest during certain points in time.
© 2002-2007 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.
DS094 (v3.2) March 8, 2007
Product Specification
www.xilinx.com
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Xilinx

XC2C256 Datasheet Preview

XC2C256 Datasheet

CoolRunner-II CPLD

No Preview Available !

XC2C256 CoolRunner-II CPLD
R
By mapping a signal to the DataGATE function, lower power
can be achieved due to reduction in signal switching.
Another feature that eases voltage translation is I/O bank-
ing. Two I/O banks are available on the CoolRunner-II 256
macrocell device that permit easy interfacing to 3.3V, 2.5V,
1.8V, and 1.5V devices.
The CoolRunner-II 256 macrocell CPLD is I/O compatible
with various I/O standards (see Table 1). This device is also
1.5V I/O compatible with the use of Schmitt-trigger inputs.
RealDigital Design Technology
Xilinx CoolRunner-II CPLDs are fabricated on a 0.18 micron
process technology which is derived from leading edge
FPGA product development. CoolRunner-II CPLDs employ
RealDigital, a design technique that makes use of CMOS
technology in both the fabrication and design methodology.
RealDigital design technology employs a cascade of CMOS
gates to implement sum of products instead of traditional
sense amplifier methodology. Due to this technology, Xilinx
CoolRunner-II CPLDs achieve both high-performance and
low power operation.
Supported I/O Standards
The CoolRunner-II 256 macrocell features LVCMOS,
LVTTL, SSTL and HSTL I/O implementations. See Table 1
for I/O standard voltages. The LVTTL I/O standard is a gen-
eral purpose EIA/JEDEC standard for 3.3V applications that
use an LVTTL input buffer and Push-Pull output buffer. The
LVCMOS standard is used in 3.3V, 2.5V, 1.8V applications.
Both HSTL and SSTL I/O standards make use of a VREF pin
for JEDEC compliance. CoolRunner-II CPLDs are also 1.5V
I/O compatible with the use of Schmitt-trigger inputs
Table 1: I/O Standards for XC2C256(1)
IOSTANDARD Output
Attribute
VCCIO
LVTTL
3.3
Input
VCCIO
3.3
Input
VREF
N/A
LVCMOS33
3.3 3.3 N/A
LVCMOS25
2.5 2.5 N/A
LVCMOS18
1.8 1.8 N/A
LVCMOS15 (2) 1.5
1.5 N/A
HSTL_1
1.5 1.5 0.75
SSTL2_1
2.5 2.5 1.25
SSTL3_1
3.3 3.3 1.5
(1)For information on Vref, see XAPP399.
(2) LVCMOS15 requires Schmitt-trigger inputs.
Board
Termination
Voltage VTT
N/A
N/A
N/A
N/A
N/A
0.75
1.25
1.5
100
75
50
25
0
0 50 100 150 200 250
Frequency (MHz)
Figure 1: ICC vs Frequency
Table 2: ICC vs Frequency (LVCMOS 1.8V TA = 25°C)(1)
Frequency (MHz)
0 30 50 70 100 120 150
Typical ICC (mA)
0.021 11.68 19.40 27.01 38.18 45.54
Notes:
1. 16-bit up/down, resettable binary counter (one counter per function block).
56.32
170
63.37
190
70.40
220
80.90
240
88.03
2
www.xilinx.com
DS094 (v3.2) March 8, 2007
Product Specification


Part Number XC2C256
Description CoolRunner-II CPLD
Maker Xilinx
Total Page 23 Pages
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