xa2c32a Xilinx Corp., xa2c32a Datasheet - Page 11

• Manufacturer Part Number: xa2c32a
• Description: Coolrunner-ii Automotive Cpld Product Family
• Manufacturer: Xilinx Corp.

Table 7: I/O Power-Up Characteristics
I/O Banking
Two V
motive CPLD 32, 64, 128 and 256 macrocell parts where
outputs on each rail can independently range from 3.3V
down to 1.5V operation. Four V
the 384 macrocell part. Any of the V
any one of the V
Designers should assign input and output voltages to a
bank with V
put voltage. The V
Runner-II Automotive CPLD must be maintained within
1.8V ±5% for correct speed operation and proper in system
programming.
Mixed Voltage, Power Sequencing, and
Hot Plugging
As mentioned in I/O Banking, CoolRunner-II Automotive
CPLD parts support mixed voltage I/O signals. It is impor-
tant to assign signals to an I/O bank with the appropriate I/O
voltage. Driving a high voltage into a low voltage bank can
result in negative current flow through the power supply
pins. The power applied to the V
occur in any order and the CoolRunner-II Automotive CPLD
DS315 (v1.1) October 31, 2006
Product Specification
IOB Bus-Hold/Weak Pullup
Device Outputs
Device Inputs and Clocks
Function Block
JTAG Controller
3.8 V
(Typ)
1.3V
(Typ)
0V
Figure 11: Device Behavior During Power Up
Power
V
CCIO
Device Circuitry
CCINT
No
CCIO
rails are supported on the CoolRunner-II Auto-
R
Quiescent
State
set at the voltage range of that input or out-
CCIO
CC
(internal supply voltage) for a Cool-
values of 1.5V, 1.8V, 2.5V, or 3.3V.
Initialization Transition of User Array
User Operation
CCIO
CCIO
Quiescent State
CCIO
rails are supported on
Weak Pull-up
Disabled
Disabled
Disabled
Disabled
and V
rails can assume
Quiescent
State
CC
pins can
Power
x382_10
No
www.xilinx.com
Erased Device Operation
will not be damaged. For best results, we recommend that
V
internal logic is correct before the I/Os are active. CoolRun-
ner-II Automotive CPLDs can reside on boards where the
board is inserted into a “live” connector (hot plugged) and
the parts will be well-behaved as if powering up in a stan-
dard way.
Development System Support
Xilinx CoolRunner-II Automotive CPLDs are supported by
all configurations of Xilinx standard release development
software as well as the freely available ISE WebPACK soft-
ware available from www.xilinx.com. Third party develop-
ment tools include synthesis tools from Cadence, Exemplar,
Mentor Graphics, Synplicity, and Synopsys.
ATE Support
Third party ATE development support is available for both
programming and board/chip level testing. Vendors provid-
ing this support include Agilent, GenRad, and Teradyne.
Other third party providers are expected to deliver solutions
in the future.
CCINT
Weak Pull-up
CoolRunner-II Automotive CPLD Product Family
Disabled
Disabled
Disabled
Enabled
be applied before V
CCIO
Bus-Hold/Weak Pullup
Valid User Operation
. This will ensure that the
As Configured
As Configured
As Configured
Enabled
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