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AT209S Dataheets PDF



Part Number AT209S
Manufacturers AME
Logo AME
Description PCI Arbiter and Clock Buffer
Datasheet AT209S DatasheetAT209S Datasheet (PDF)

AME, Inc. AT209S n General Description The AT209S is an integrated device that contains a PCI Arbiter and a Clock Buffer. PCI Arbiter extends system PCI devices without piecing other circuit to simplify design complexity and increase systems stability. PCI Arbiter www.DataSheet4U.com also provides STOP# input pin with that extended PCI devices instruct the master to prematurely end the transaction on the current data phase same as one in PCI specification. Clock Buffer is a high performance and .

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AME, Inc. AT209S n General Description The AT209S is an integrated device that contains a PCI Arbiter and a Clock Buffer. PCI Arbiter extends system PCI devices without piecing other circuit to simplify design complexity and increase systems stability. PCI Arbiter www.DataSheet4U.com also provides STOP# input pin with that extended PCI devices instruct the master to prematurely end the transaction on the current data phase same as one in PCI specification. Clock Buffer is a high performance and low jitter zero delay buffer that provides synchronization between the input and output. The synchronization is established via CLKO feed back to the input of a build-in PLL. PCICLKI is the clock input of the Clock Buffer. In the absence of PCICLKI input, will be in the power down mode. In this mode, the PLL is turned off and the output buffers are pulled low. Power down mode provides the lowest power consumption for a standby condition. PCI Arbiter and Clock Buffer n Features l PCI Arbiter Extend PCI Devices from One to Three l PCI Clock Frequency Support PCI Clock range from 25MHz to 66MHz l Zero delay buffer Generate four zero delay clock sources Support frequency range from 25MHz to 66MHz l All AME's Lead Free Products Meet RoHS Standards Rev.A.01 1 AME, Inc. AT209S n Pin Configuration PCI Arbiter and Clock Buffer NC P C IS T O P # www.DataSheet4U.com 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 AVCC P C IC L K I P C IR S T # AVSS VSS P C IC L K O U T P C IC L K 1 VCC P C IC L K 2 P C IC L K 3 P C IC L K 4 VSS NC NC S YS R E Q # S YS G N T # P C IR E Q 1 # VSS P C IG N T 1 # P C IR E Q 2 # VCC P C IG N T 2 # P C IR E Q 3 # P C IG N T 3 # NC NC A T 2 0 9 S 24 23 22 21 20 19 18 17 16 15 ¡° Ordering Information AT209S- Commercial Standard AT209SG- Green Device with Commercial Standard 2 Rev.A.01 AME, Inc. AT209S n Pin Description I/O Type IN OUT www.DataSheet4U.com PCI Arbiter and Clock Buffer Function Input Pin Output Pin Power Pin PWR Pin No. 26 2 3 4 5 7 8 10 11 12 Pin Name PCIRST# PCISTOP# SYSREQ# SYSGNT# PCIREQ1# PCIGNT1# PCIREQ2# PCIGNT2# PCIREQ3# PCIGNT3# I/O Type IN IN OUT IN IN OUT IN OUT IN OUT PCI bus reset# Function PCI bus stop# (Internal 47K pull-up resistor) Request signal to chipset Grant signal from chipset (Internal 47K pull-up resistor) Request signal from PCI bus (Internal 47K pull-up resistor) Grant signal to PCI bus Request signal from PCI bus (Internal 47K pull-up resistor) Grant signal to PCI bus Request signal from PCI bus (Internal 47K pull-up resistor) Grant signal to PCI bus Table 1. PCI Arbiter FSM Group Signal, Power; Vcc3V (3.3V) Rev.A.01 3 AME, Inc. AT209S n Pin Description Pin No. 18 19 www.DataSheet4U.com PCI Arbiter and Clock Buffer Pin Name PCICLK4 PCICLK3 PCICLK2 PCICLK1 PCICLKOUT PCICLKI I/O Type OUT OUT OUT OUT OUT IN PCICLK output PCICLK output PCICLK output PCICLK output Function 20 22 23 27 PLL feedback and Internal feedback on this pin PCLCLK input reference frequency Table 2. .


SPLLG91-P AT209S CY8C24094


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