Copyright
2002 ITE, Inc.
This is Preliminary document release. All specifications are subject to change without notice.
The material contained in this document supersedes all previous documentation issued for the related products
included herein. Please contact ITE, Inc. for the latest document(s). All sales are subject to ITE's Standard
Terms and Conditions, a copy of which is included in the back of this document.
ITE, IT8209R is a trademark of ITE, Inc.
All other trademarks are claimed by their respective owners.
All specifications are subject to change without notice.
Additional copies of this manual or other ITE literature may be obtained from:
ITE, Inc. Phone: (02) 2912-6889
Marketing Department Fax: (02) 2910-2551, 2910-2552
8F, No. 233-1, Bao Chiao Rd., Hsin Tien,
Taipei County 231, Taiwan, R.O.C.
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U.S.A.
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Fax: (408) 530-8861
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Tel: (512) 388-7880, Fax: (512) 388-3108
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www.ite.com.tw IT8209R V0.3
www.iteusa.com
i
Contents
Contents
1. Features ................................................................................................................................................................ 1
2. General Description.............................................................................................................................................. 3
3. Block Diagram....................................................................................................................................................... 5
4. Pin Configuration .................................................................................................................................................. 7
5. IT8209R Pin Descriptions .................................................................................................................................... 9
6. DC Characteristics (VCC, AVCC = 3.3V
0.3V. Ta=0
C to 70
C)................................................................... 11
7. AC Characteristics.............................................................................................................................................. 13
8. Package Information .......................................................................................................................................... 15
9. Ordering Information .......................................................................................................................................... 17
Figures
Figure 2-1. Arbitration Scheme of IT8209R ............................................................................................................. 3
Figure 3-1. Extended PCI Arbiter Scheme............................................................................................................... 5
Figure 3-2. Clock Buffer Scheme.............................................................................................................................. 5
Figure 7-1. PCI Request Delay Timing .................................................................................................................. 13
Figure 7-2. PCI Grant Delay Timing ....................................................................................................................... 13
Figure 7-3. PCI Grant Separation Timing .............................................................................................................. 13
Figure 7-4. PCI Clock Acquisition Timing ..............................................................................................................14
Tables
Table 4-1. Pins Listed in Numeric Order.................................................................................................................. 7
Table 5-1. Pin Descriptions of Extended PCI Arbiter .............................................................................................. 9
Table 5-2. Pin Descriptions of Clock Buffer ............................................................................................................. 9
Table 5-3. Pin Descriptions of Power/Ground Signals............................................................................................ 9
Table 7-1. PCI Request Delay Timing Table ......................................................................................................... 13
Table 7-2. PCI Grant Delay Timing Table.............................................................................................................. 13
Table 7-3. PCI Grant SeparatioinTiming Table .....................................................................................................13
Table 7-4. PCI Clock Acquisition Timing Table .....................................................................................................14
www.ite.com.tw IT8209R V0.3
www.iteusa.com ITPM-PN-200205
Specifications subject to change without notice By Peterson Lu, Mar. 7, 2002
1
Features
1. Features
n
Extended PCI Arbiter
-
Utilizes 1 set of SYSGNT# and SYSREQ# to support 3 PCI Masters
n
Input PCI Clock
-
Supports input clock frequency from 25MHz to 66MHz
n
Clock Buffer
-
Provides 4 zero delay clock sources
-
Supports output clock frequency from 25MHz to 66MHz
n
28-pin SSOP
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