ics9248-78 Integrated Device Technology, ics9248-78 Datasheet

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ics9248-78

Manufacturer Part Number
ics9248-78
Description
Frequency Timing Generator For Pentium Ii Systems
Manufacturer
Integrated Device Technology
Datasheet
General Description
Power Groups
Frequency Timing Generator for Pentium II Systems
Block Diagram
9248-78 Rev A 7/21/99
Features
Preliminary Product Preview
PRODUCT PREVIEW documents contain information on new
products in the sampling or preproduction phase of development.
Characteristic data and other specifications are subject to change
without notice.
Pin Configuration
48-Pin 300 mil SSOP
Pentium II is a trademark of Intel Corporation
I
2
C is a trademark of Philips Corporation
ICS9248-78

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ics9248-78 Summary of contents

Page 1

... Frequency Timing Generator for Pentium II Systems General Description Block Diagram Power Groups 9248-78 Rev A 7/21/99 ICS9248-78 Preliminary Product Preview Features Pin Configuration 48-Pin 300 mil SSOP Pentium trademark of Intel Corporation trademark of Philips Corporation PRODUCT PREVIEW documents contain information on new products in the sampling or preproduction phase of development ...

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... ICS9248-78 Preliminary Product Preview Pin Descriptions ...

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... ICS9248-78 Preliminary Product Preview ...

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... ICS9248-78 Preliminary Product Preview Power Down Waveform ...

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... Stop Bit Preliminary Product Preview 2 C serial interface information How to Read: Controller (Host) ACK ACK ACK ACK ACK ACK ACK ACK ACK ICS9248-78 How to Read: ICS (Slave/Receiver) Start Bit Address D3 (H) ACK Byte Count ACK Byte 0 ACK Byte 1 ACK Byte 2 ACK ...

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... ICS9248-78 Preliminary Product Preview ± ...

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... ICS9248-78 Preliminary Product Preview ...

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... ICS9248-78 Preliminary Product Preview Absolute Maximum Ratings Electrical Characteristics - Input/Supply/Common Output Parameters 70C; Supply Voltage V = 3.3 V +5%, VDDL=2.5 V+ 5%(unless otherwise stated PARAMETER SYMBOL Input High Voltage V IH Input Low Voltage V IL Input High Current I IH Input Low Current I IL1 ...

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... VOH@ MIN = 1.0 V, VOH@ MAX = 3.135 V -33 VOL@ MIN = 1.95 V, VOL@ MAX ICS9248-78 Preliminary Product Preview MIN TYP MAX UNITS 13 0.4 -27 - 0.4 1.6 0.4 1 175 250 MIN TYP ...

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... ICS9248-78 Preliminary Product Preview Electrical Characteristics - IOAPIC 70C;V = 2.5 V +/-5 DDL PARAMETER SYMBOL 1 Output Impedance R DSP4B 1 Output Impedance R DSN4B Output High Voltage V OH4\B Output Low Voltage V OL4B Output High Current I OH4B Output Low Current I OL4B 1 Rise Time t r4B 1 Fall Time ...

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... 3.135 V OH @MIN OH@MAX V =1. =0.4 V OL@MIN OL@MIN 1.5 V; Fixed Clocks 1.5 V; Ref Clocks 1 ICS9248-78 MIN TYP MAX UNITS 2.4 V 0. 500 ps 500 ps MIN TYP ...

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... ICS9248-78 Preliminary Product Preview Group Skews at Common Transition Edges: CPU & IOAPIC load (lumped) = 20pf; PCI, SDRAM, 3V66 LOAD (LUMPED) = 30pf. GROUP SYMBOL CPU (at 66MHz CPU1-3V66 3V66 CPU (at 100MHz CPU2-SDRAM SDRAM 3V66 to PCI S 3V66-PCI IOAPIC to PCI S IOAPIC-PCI Group Offset Waveforms CONDITIONS CPU @ 1.25V, 3V66 @ 1.5V (Note: 180° ...

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... ° 8 ° PRODUCT PREVIEW documents contain information on new products in the sampling or preproduction phase of development. Characteristic data and other specifications are subject to change without notice. ICS9248- ...

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