ics9248-72 ETC-unknow, ics9248-72 Datasheet
ics9248-72
Related parts for ics9248-72
ics9248-72 Summary of contents
Page 1
... Integrated Circuit Systems, Inc. Frequency Timing Generator for PENTIUM II Systems General Description Block Diagram 9248-72 Rev B 7/28/99 ICS9248-72 Preliminary Product Preview Features Key Specification Pin Configuration 48-pin SSOP 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 ...
Page 2
... ICS9248-72 Preliminary Product Preview Power Groups: Pin Descriptions Pin number Pin name 1, 45, 46 IOAPIC[2:0] 2 REF0 3, 24, 29, 33 VDD 14, 20, 26, 32 GND FS [2: PCICLK [1:0] 9,17 VDDPCI 19, 18, 16, 15, 13, PCICLK [9:2] 12, 11, 10 23, 22, 21 3V66 25 SEL 133/100# FS0 27 48 MHz SEL24/48 28 24_48MHz# 30 SCLK ...
Page 3
... ICS9248-72 Power Management Features Power Management Requirements ...
Page 4
... ICS9248-72 Preliminary Product Preview General I How to Write: How to Write: Controller (Host) ICS (Slave/Receiver) Start Bit Address D2 (H) Dummy Command Code Dummy Byte Count Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Stop Bit 2 C serial interface information How to Read: Controller (Host) ACK ACK ...
Page 5
... ± ICS9248-72 Preliminary Product Preview ...
Page 6
... ICS9248-72 Preliminary Product Preview ...
Page 7
... PD# Timing Diagram ICS9248-72 Preliminary Product Preview ...
Page 8
... ICS9248-72 Preliminary Product Preview Absolute Maximum Ratings Group Offset Group Offset CPU to 3V66 0.0-1.5ns CPU leads 3V66 to PCI 1.5-4.0ns 3V66 leads CPU to IOAPIC 1.5-4.0ns CPU leads No te All o ffsets are to be meas u red at ris in g edg es. Electrical Characteristics - Input/Supply/Common Output Parameters 70C ...
Page 9
... 1. 2.375V OH @MIN OH@ MAX 0.3V OL @MIN OL@ MAX ICS9248-72 Preliminary Product Preview MIN TYP MAX UNITS 13 0.4 -27 - 0.4 1.6 0.4 1 175 250 MIN TYP MAX UNITS 13 0.4 -27 - ...
Page 10
... ICS9248-72 Preliminary Product Preview Electrical Characteristics - 3V66 70C 3.3 V +/-5 PARAMETER SYMBOL 1 Output Impedance R DSP1 1 Output Impedance R DSN1 Output High Voltage V OH1 Output Low Voltage V OL1 Output High Current I OH1 Output Low Current I OL1 1 Rise Time Fall Time ...
Page 11
... 1. 2.375V OH @MIN OH@ MAX 0.3V OL @MIN OL@ MAX ICS9248-72 Preliminary Product Preview MIN TYP MAX UNITS 2.4 0.4 -29 - 500 1000 N/A MIN TYP MAX UNITS 13 0.4 -27 - ...
Page 12
... ICS9248-72 Preliminary Product Preview Ordering Information ICS9248yF-72 ICS XXXX PPP ...