GCIXP1250BA 837411 Intel, GCIXP1250BA 837411 Datasheet - Page 74

• Manufacturer Part Number: GCIXP1250BA 837411
• Manufacturer: Intel

Specifications of GCIXP1250BA 837411

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Intel
4.3.3
4.3.4
4.3.4.1
4.3.4.2
74
Figure 14. PCI Clock Signal AC Parameter Measurements
Table 39. 66 MHz PCI Clock Signal AC Parameters
®
IXP1250 Network Processor
PXTAL Clock Oscillator Specifications
Frequency:
Stability:
Voltage signal level:
Rise/fall time:
Duty cycle:
PCI
PCI Electrical Specification Conformance
The IXP1250 PCI pins support the basic set of PCI electrical specifications in the PCI Local Bus
Specification, Revision 2.2. See that document for a complete description of the PCI I/O protocol
and pin ac specifications.
PCI Clock Signal AC Parameter Measurements
Vt1 = 0.5*VDDX
Vt2 = 0.4*VDDX
Vt3 = 0.3*VDDX
1. 0.2 VDDX to 0.6 VDDX.
2. Not tested. Guaranteed by design.
T
T
Tl
cyc
high
ow
Symbol
PCI_CLK cycle time
PCI_CLK high time
PCI_CLK low time
PCI_CLK slew rate
F
core
V
/PCI Clock Ratio
t3
V
Parameter
F
100 ppm
< 4 ns
40%-60%
t2
V
3.3 Volts
pxtal
t1
T
r
±0.01%
T
1, 2
high
15
6
6
1.5
2:1
T
T
cyc
Minimum
f
T
low
---
---
4
Maximum
ns
ns
ns
V/ns
Datasheet
Unit
A8554-01