ICS951416AGLFT IDT, Integrated Device Technology Inc, ICS951416AGLFT Datasheet
ICS951416AGLFT
Specifications of ICS951416AGLFT
Related parts for ICS951416AGLFT
ICS951416AGLFT Summary of contents
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Integrated Circuit Systems, Inc. System Clock Chip for ATI RS480 Recommended Application: ATI RS480 systems using AMD K8 processors Output Features: • 14.318 MHz REF clocks • USB_48MHz USB clock • HyperTransport 66 MHz ...
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ICS951416 Pin Descriptions PIN PIN PIN NAME # TYPE Crystal input, Nominally 14.318MHz OUT Crystal output, Nominally 14.318MHz 3 VDD48 PWR Power pin for the 48MHz output.3.3V 4 USB_48MHz OUT 48.00MHz USB clock 5 GND ...
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Pin Descriptions (Continued) PIN PIN NAME TYPE # 29 ATIGCLKC0 OUT Complementary clock of differential SRC clock pair. 30 ATIGCLKT0 OUT True clock of differential SRC clock pair. 31 GNDATI PWR Ground for ATI Gclocks, nominal 3.3V 32 VDDATI PWR ...
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ICS951416 General Description The ICS951416 is a main clock synthesizer chip that provides all clocks required for ATI RS480-based systems. An SMBus interface allows full control of the device. Block Diagram X1 XTAL X2 OSC. FS(2:0) CLKREQA# CLKREQB# CONTROL LOGIC ...
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General SMBus serial interface information How to Write: • Controller (host) sends a start bit. • Controller (host) sends the write address D2 • ICS clock will acknowledge • Controller (host) sends the begining byte location = N • ICS ...
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ICS951416 Table1: CPU Frequency Selection Table CPU CPU Bit2 Bit1 FS4 FS3 FS2 FS1 (B0:b4) (B0:b3 ...
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Table2: SRC & ATIG Frequency Selection Table Byte 5 Bit4 Bit3 Bit2 Bit1 Bit0 SRC FS4 SRC SRC SRC SRC Spread FS3 FS2 FS1 FS0 Enable ...
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ICS951416 Table 3: CPU Divider Ratios Bit 00 0000 00 01 0001 10 0010 11 0011 15 Address Div LSB Table 4: HTT Divider Ratios Bit 00 0000 00 01 0001 10 0010 11 0011 15 LSB Address Div Table ...
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SMBus Table: Frequency Select Register Byte 0 Pin # Name - Bit 7 FS Source Bit 6 - SS_EN - Reserved Bit 5 Bit 4 - FS4 Bit 3 - FS3 - FS2 Bit 2 Bit 1 - FS1 - ...
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ICS951416 SMBus Table: SRCCLK(7:3,0), CLKREQA# Output Control Register Byte 3 Pin # Name Bit 7 12,13 SRCCLK7 Bit 6 16,17 SRCCLK6 18,19 SRCCLK5 Bit 5 Bit 4 22,23 SRCCLK4 24,25 SRCCLK3 Bit 3 Bit 2 34,33 SRCCLK0 Bit 1 24,25 ...
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SMBus Table: Device ID Register Byte 6 Pin # Name Bit 7 - DevID 7 - DevID 6 Bit 6 - DevID 5 Bit 5 - DevID 4 Bit 4 - DevID 3 Bit 3 - DevID 2 Bit 2 ...
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ICS951416 SMBus Table: M/N Programming & WD Safe Frequency Control Register Byte 10 Pin # Name Bit 7 - M/N_EN - Reserved Bit 6 WD Safe Freq Bit 5 - Source - WD SF4 Bit SF3 Bit ...
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SMBus Table: CPU Spread Spectrum Control Register Byte 14 Pin # Name Bit 7 - Reserved Bit 6 - SSP14 - SSP13 Bit 5 Bit 4 - SSP12 - SSP11 Bit 3 Bit 2 - SSP10 - Bit 1 SSP9 ...
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ICS951416 SMBus Table: SRC Spread Spectrum Control Register Byte 18 Pin # Name Bit 7 - Reserved - SSP14 Bit 6 - SSP13 Bit 5 - SSP12 Bit 4 - SSP11 Bit 3 - SSP10 Bit 2 - SSP9 Bit ...
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Absolute Maximum Ratings Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . 3.8V Logic Inputs . . . . . . . ...
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ICS951416 Electrical Characteristics - K8 Push Pull Differential Pair 70° 3.3 V +/-5 PARAMETER SYMBOL δV/δt Rising Edge Rate δV/δt Falling Edge Rate V Differential Voltage DIFF Change in V ∆V ...
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Electrical Characteristics - SRC 0.7V Current Mode Differential Pair 70° 3.3 V +/-5 PARAMETER SYMBOL Current Source Output Zo Impedance Voltage High VHigh Voltage Low VLow Max Voltage Vovs Min Voltage ...
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ICS951416 Electrical Characteristics - PCI33, HTT66 Clocks 70°C; VDD=3.3V +/-5 PARAMETER SYMBOL Long Accuracy ppm T PCI33 Clock period period T HTT66 Clock period period Output High Voltage V OH Output Low Voltage V ...
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Electrical Characteristics - 48MHz, USB 70° 3.3 V +/-5 PARAMETER SYMBOL Long Accuracy ppm T Clock period period Output High Voltage Output Low Voltage OL I Output High ...
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ICS951416 Electrical Characteristics - REF-14.318MHz 70° 3.3 V +/-5 PARAMETER SYMBOL Long Accuracy ppm T Clock period period V Output High Voltage OH Output Low Voltage Output High ...
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Common Recommendations for Differential Routing L1 length, Route as non L2 length, Route as non L3 length, Route as non Rs Rt Down Device Differential Routing L4 length, Route as coupled differential trace. L4 length, Route as coup differential trace. ...
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ICS951416 Shared Pin Operation - Input/Output Pins The I/O pins designated by (input/output) on the ICS951416 serve as dual signal functions to the device. During initial power-up, they act as input pins. The logic level (voltage) that is present on ...
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INDEX INDEX AREA AREA 45° 45° .10 (.004) C .10 (.004) C Ordering Information ICS951416yFLFT Example: ICS XXXX 0937H—05/26/05 ...
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ICS951416 INDEX INDEX AREA AREA Ordering Information ICS951416yGLFT Example: ICS XXXX 0937H—05/26/05 56-Lead 6.10 mm. Body, 0.50 mm. Pitch TSSOP c ...
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Revision History Rev. Issue Date Description D 11/11/2004 Changes Pull Down Symbol from ~ 12/8/2004 Update CPU and SRC frequency selection table. 1. Updated the Electrical Characteristics for HTT. F 4/22/2005 2. Updated Ordering Information from "Lead ...