ST70137

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PCI Clock Waveform 5V

PCI Clock Waveform 3.3V

PCI Timings

* PCI REQN and GNTN are point-to-point signals and have different output valid delay and input setupt times than do bused signals. REQN

has set up of 12ns and GNTN of 10ns. All other signals are bused.

** Guaranted by design.

Symbol

Parameter

Minimum

Typical

Maximum

Units

Tval

Clock to Signal Valid Delay (bused signals)

2

11

ns

Tval(ptp)

Clock to Signal Valid Delay (point to point)

2

12

ns

Ton

Float to Active Delay

2

ns

Toff

Active to Float Delay

28

ns

Tsu

Input Set up Time to Clock (bused signals)

7

ns

Tsu(ptp)

Input Set up Time to Clock (point to point) *

10, 12 *

ns

Th

Input Hold Time from Clock

0

ns

Trst

Reset Active Time after Power Stable

1

ms

Trst-clk

Reset Active Time after CLK Stable **

100

µs

Trst-off

Reset Active to Output Float Delay **

40

ns

2.0V

1.5V

0.8V

2.4V

0.4V

Tc

Th

TI

Tc

Th

TI