RC82540EP Intel, RC82540EP Datasheet - Page 27

• Manufacturer Part Number: RC82540EP
• Manufacturer: Intel

Specifications of RC82540EP

• Operating Supply Voltage (typ): 1.5/2.5/3.3V
• Operating Supply Voltage (min): 1.43/2.38/3V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 196
• Lead Free Status / RoHS Status: Not Compliant

4.5.1.2
Figure 2. PCI Clock Timing
Table 15. PCI Bus Interface Timing Parameters
PCI Bus Interface Timing
NOTES:
1. Output timing measurements are as shown.
2. REQ# and GNT# signals are point-to-point and have different output valid delay and input setup times than
3. Input timing measurements are as shown.
TVAL
TVAL(ptp)
TON
TOFF
TSU
TSU(ptp)
TH
TRRSU
TRRH
Symbol
bussed signals. GNT# has a setup of 10 ns; REQ# has a setup of 12 ns. All other signals are bussed.
3.3 V Clock
0.5 Vcc
0.4 Vcc
0.3 Vcc
CLK to signal valid delay: bussed
signals
CLK to signal valid delay: point-
to-point signals
Float to active delay
Active to float delay
Input setup time to CLK: bussed
signals
Input setup time to CLK: point-to-
point signals
Input hold time from CLK
REQ64# to RST# setup time
RST# to REQ64# hold time
Parameter
0.6 Vcc
Th
Tcyc
10*
Min
TCYC
2
2
2
3
5
0
0
PCI 66MHz
0.2 Vcc
PCI Clock Timing.vsd
Tl
Max
14
6
6
Networking Silicon — 82540EP
10*
10, 12
Min
TCYC
2
2
2
7
0
0
PCI 33 MHz
Max
12
28
11
0.4 Vcc p-to-p
(minimum)
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
21