V320USC-75LPREVB1 Просмотр технического описания (PDF) - QuickLogic Corporation

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V320USC-75LPREVB1

PCI System Controller for 32-Bit MIPS™ and SuperH™ System Interface

QuickLogic Corporation 

V320USC Universal System Controller Rev. G

AC Specifications

The AC specifications for the PCI bus signals match exactly those given in the PCI Specification, Rev. 2.1,

Section 4.2.1.2. For more information on the PCI AC specifications, including the V/I curves for 5V

signalling, see section 4.2.1.2 of the PCI Specification, Rev 2.1.

PCI Bus Timings

Symbol

IOH(AC)

IOL(AC)

ICL

tR

tF

Table 14: PCI Bus Signals AC Operating Specifications

Parameter

Switching current high

(Test point)

Switching current low

(Test point)

Low clamp current

Unloaded output rise time

Unloaded output fall time

Condition

0V< VOUT≤ 0.3VCC

0.3VCC<VOUT<0.9V

0.7VCC<VOUT<VCC

VOUT = 0.7VCC

VCC > VOUT >0.6VCC

0.6VCC > VOUT >0.1VCC

VOUT=0.18VCC

-3V<VIN<-1V

0.2VCC to 0.6VCC

0.6V to 0.2V

Min.

-12VCC

-17.1(VCC-VOUT)

16VCC

26.7VCC

-25+(VIN+1)/0.015

1

1

Max.

Equation C

-32VCC

38VCC

4

4

Unit

mA

mA

mA

mA

mA

mA

V/ns

V/ns

Local and M Bus Timings

Symbol

VCC

VIN

COUT

Table 15: Local and M Bus AC Test Conditions

Parameter

Supply voltage 3.3 volt operation

Limits

Unit

3.0 to 3.60

V

Input low and high voltages

Capacitive load on output and I/O pins

0.4 and 2.0

V

50

pF

Symbol

VCC

VIN

COUT

Table 16: M Bus AC Test Conditions

Parameter

Supply voltage 3.3 volt operation

Input low and high voltages

Capacitive load on output and I/O pins

Limits

Unit

3.0 to 3.60

V

0.4 and 2.0

V

50

pF

Output Drive Limit

8 mA

12 mA

Table 17: Capacitive Derating for Output and I/O Pins

Supply Voltage

3.3 volt

3.3 volt

Derating

0.019 ns/pF for loads > 50 pF

0.017 ns/pF for loads > 50 pF

8

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