ICS951412AGLF IDT, Integrated Device Technology Inc, ICS951412AGLF Datasheet - Page 4

• Manufacturer Part Number: ICS951412AGLF
• Description: IC SYSTEM CLOCK CHIP K8 56-TSSOP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock/Frequency Synthesizerr

Specifications of ICS951412AGLF

• Input: Crystal
• Output: Clock
• Frequency - Max: 229MHz
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 56-TSSOP
• Frequency-max: 229MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 951412AGLF

ICS951412A
General Description
The ICS951412A 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
Skew Characteristics
1231A—06/12/06
T
T
T
T
T
T
T
T
T
T
T
T
sk_CPU_CPU
sk_CPU_PCI
sk_PCI_PCI
sk_PCI33-HT66
sk_CPU_HT66
sk_CPU_HT66
sk_CPU_CPU
sk_CPU_PCI
sk_PCI_PCI
sk_PCI33-HT66
sk_CPU_HT66
sk_CPU_HT66
Parameter
time variant skew
not dependent on
time independent
V, T changes
V, T changes
Description
varies over
skew
X1
X2
FS(2:0)
CLKREQA#
CLKREQB#
SEL75#/100
SDATA
SCLK
measured at x-ing of CPU,
measured at x-ing of CPU,
1.5V of PCI clock
measured between rising
edge at 1.5V
measured between rising
edge at 1.5V
measured between rising
edge at 1.5V
measured at x-ing of CPU,
1.5V of PCI clock
measured at x-ing of CPU,
measured at x-ing of CPU,
1.5V of PCI clock
measured between rising
edge at 1.5V
measured between rising
edge at 1.5V
measured between rising
edge at 1.5V
measured at x-ing of CPU,
1.5V of PCI clock
XTAL
OSC.
Test Conditons
CONTROL
LOGIC
FIXED PLL
MAIN PLL
Window
Skew
2000
2000
4
250
500
500
500
200
200
200
200
200
200
DIVIDERS
DIVIDER
Unit
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
IREF
SRCCLK(7:3,0)
CPUCLK8(1:0)
ATIGCLK(1:0)
USB_48MHz
HTTCLK0
PCICLK0
REF(2:0)