XC3S502 Xilinx Corp., XC3S502 Datasheet - Page 100
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XC3S502
Manufacturer Part Number
XC3S502
Description
Spartan-3 Fpga Family Complete Data Sheet
Manufacturer
Xilinx Corp.
Datasheet
1.XC3S502.pdf
(208 pages)
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Spartan-3 FPGA Family: Pinout Descriptions
Table 68: Types of Pins on Spartan-3 FPGAs (Continued)
I/Os with Lxxy_# are part of a differential output pair. ‘L’ indi-
cates differential output capability. The “xx” field is a
two-digit integer, unique to each bank that identifies a differ-
ential pin-pair. The ‘y’ field is either ‘P’ for the true signal or
‘N’ for the inverted signal in the differential pair. The ‘#’ field
is the I/O bank number.
100
Notes:
1.
VCCAUX
VCCINT
VCCO
VREF
GCLK
Type/
Color
Code
GND
N.C.
# = I/O bank number, an integer between 0 and 7.
Dual-purpose pin that is either a user-I/O pin or, along with all other VREF
pins in the same bank, provides a reference voltage input for certain I/O
standards. If used for a reference voltage within a bank, all VREF pins
within the bank must be connected.
Dedicated ground pin. The number of GND pins depends on the package
used. All must be connected.
Dedicated auxiliary power supply pin. The number of VCCAUX pins
depends on the package used. All must be connected to +2.5V.
Dedicated internal core logic power supply pin. The number of VCCINT
pins depends on the package used. All must be connected to +1.2V.
Dedicated I/O bank, output buffer power supply pin. Along with other
VCCO pins in the same bank, this pin supplies power to the output buffers
within the I/O bank and sets the input threshold voltage for some I/O
standards.
Dual-purpose pin that is either a user-I/O pin or an input to a specific global
buffer input. Every package has eight dedicated GCLK pins.
This package pin is not connected in this specific device/package
combination but may be connected in larger devices in the same package.
Description
www.xilinx.com
Pin Definitions
Table 69
Spartan-3 pinout tables and package footprint diagrams.
Pins are categorized by their pin type, as listed in
See
mation.
Detailed, Functional Pin Descriptions
provides a brief description of each pin listed in the
IO/VREF_#
IO_Lxxy_#/VREF_#
GND
VCCAUX
VCCINT
VCCO_#
CP132 and TQ144 Packages
Only:
VCCO_LEFT, VCCO_TOP,
VCCO_RIGHT,
VCCO_BOTTOM
IO_Lxxy_#/GCLK0,
IO_Lxxy_#/GCLK1,
IO_Lxxy_#/GCLK2,
IO_Lxxy_#/GCLK3,
IO_Lxxy_#/GCLK4,
IO_Lxxy_#/GCLK5,
IO_Lxxy_#/GCLK6,
IO_Lxxy_#/GCLK7
N.C.
Pin Name(s) in Type
DS099-4 (v2.2) May 25, 2007
Product Specification
for more infor-
Table
68.
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