XC3S100E Datasheet, PDF(4/193 Page) Xilinx, Inc – DC and Switching Characteristics

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XC3S100E Datasheet, PDF (4/193 Pages) Xilinx, Inc – DC and Switching Characteristics

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Introduction and Ordering Information

Configuration

Spartan-3E FPGAs are programmed by loading configura-

tion data into robust, reprogrammable, static CMOS config-

uration latches (CCLs) that collectively control all functional

elements and routing resources. The FPGAâs configuration

data is stored externally in a PROM or some other non-vol-

atile medium, either on or off the board. After applying

power, the configuration data is written to the FPGA using

any of seven different modes:

â¢ Master Serial from a Xilinx Platform Flash PROM

â¢ Serial Peripheral Interface (SPI) from an

industry-standard SPI serial Flash

â¢ Byte Peripheral Interface (BPI) Up or Down from an

industry-standard x8 or x8/x16 parallel NOR Flash

â¢ Slave Serial, typically downloaded from a processor

â¢ Slave Parallel, typically downloaded from a processor

â¢ Boundary Scan (JTAG), typically downloaded from a

processor or system tester.

I/O Capabilities

The Spartan-3E FPGA SelectIO interface supports many

popular single-ended and differential standards. Table 2

shows the number of user I/Os as well as the number of dif-

ferential I/O pairs available for each device/package combi-

nation.

Spartan-3E FPGAs support the following single-ended

standards:

â¢ 3.3V, low-voltage TTL, LVTTL

â¢ Low-voltage CMOS (LVCMOS) at 3.3V, 2.5V, 1.8V,

1.5V, or 1.2V

â¢ 3.3V PCI at 33 MHz and 66 MHz

â¢ HSTL I and III at 1.8V, typically for memory applications

â¢ SSTL I at 1.8V and 2.5V, typically for memory

applications

Spartan-3E FPGAs support the following differential stan-

dards:

â¢ LVDS

â¢ Bus LVDS

â¢ mini-LVDS

â¢ RSDS

Table 2: Available User I/Os and Differential (Diff) I/O Pairs

VQ100

VQG100

CP132

CPG132

TQ144

TQG144

PQ208

PQG208

FT256

FTG256

FG320

FGG320

FG400

FGG400

FG484

FGG484

Device User Diff User Diff User Diff User Diff User Diff User Diff User Diff User Diff

XC3S100E

66 30

- 108 40

XC3S250E

66 30 92 41 108 40 158 65 172 68

XC3S500E

92 41

- 158 65 190 77 232 92

XC3S1200E -

- 190 77 250 99 304 124 -

XC3S1600E -

- 250 99 304 124 376 156

Notes:

1. All Spartan-3E devices in the same package are pin-compatible.

DS312-1 (v1.1) March 21, 2005

www.xilinx.com

Advance Product Specification

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