ATF1504ASL ATMEL [ATMEL Corporation], ATF1504ASL Datasheet - Page 18

• Manufacturer Part Number: ATF1504ASL
• Description: High performance Complex Programmable Logic Device
• Manufacturer: ATMEL [ATMEL Corporation]

PCI Compliance
PCI Voltage-to-current Curves for +5V Signaling in Pull-up Mode
PCI Voltage-to-current Curves for +5V Signaling in Pull-down Mode
18
ATF1504AS(L)
The ATF1504AS also supports the growing need in the industry to support the new
Peripheral Component Interconnect (PCI) interface standard in PCI-based designs and
specifications. The PCI interface calls for high current drivers, which are much larger
than the traditional TTL drivers. In general, PLDs and FPGAs parallel outputs to support
the high current load required by the PCI interface. The ATF1504AS allows this without
contributing to system noise while delivering low output-to-output skew. Having a pro-
grammable high drive option is also possible without increasing output delay or pin
capacitance. The PCI electrical characteristics appear on the next page.
VCC
VCC
2.4
1.4
0.55
2.2
-2
3,6
DC
drive point
DC
drive point
AC drive
AC drive
point
point
Pull Down
Pull Up
-44
95
Current (mA)
Current (mA)
Test Point
-178
380
Test Point
0950N–PLD–07/02