General recommended operating conditions – Xilinx DS610 User Manual

Page 11

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Spartan-3A DSP FPGA Family: DC and Switching Characteristics

DS610 (v3.0) October 4, 2010

www.xilinx.com

Product Specification

11

General Recommended Operating Conditions

Table 7: General Recommended Operating Conditions

Symbol

Description

Min

Nominal

Max

Units

T

J

Junction temperature

Commercial

0

85

°C

Industrial

–40

100

°C

V

CCINT

Internal supply voltage

1.14

1.20

1.26

V

V

CCO

(1)

Output driver supply voltage

1.10

3.60

V

V

CCAUX

Auxiliary supply voltage

(2)

V

CCAUX

= 2.5

2.25

2.50

2.75

V

V

CCAUX

= 3.3

3.00

3.30

3.60

V

V

IN

(3)

Input voltage

PCI™ IOSTANDARD

–0.5

V

CCO

+0.5

V

All other
IOSTANDARDs

IP or IO_#

–0.5

4.10

V

IO_Lxxy_#

(4)

–0.5

4.10

V

T

IN

Input signal transition time

(5)

500

ns

Notes:

1.

This V

CCO

range spans the lowest and highest operating voltages for all supported I/O standards.

Table 10

lists the recommended V

CCO

range specific to each of the single-ended I/O standards, and

Table 12

lists that specific to the differential standards.

2.

Define V

CCAUX

selection using CONFIG VCCAUX constraint.

3.

See

XAPP459

, Eliminating I/O Coupling Effects when Interfacing Large-Swing Single-Ended Signals to User I/O Pins on Spartan-3 Families.

4.

For single-ended signals that are placed on a differential-capable I/O, V

IN

of –0.2V to –0.5V is supported but can cause increased leakage

between the two pins. See Parasitic Leakage in

UG331

, Spartan-3 Generation FPGA User Guide.

5.

Measured between 10% and 90% V

CCO

. Follow

Signal Integrity

recommendations.

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