ICS952906AFLF IDT, Integrated Device Technology Inc, ICS952906AFLF Datasheet - Page 3

• Manufacturer Part Number: ICS952906AFLF
• Description: IC TIMING CTRL HUB P4 48-SSOP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Timing Control Hubr

Specifications of ICS952906AFLF

• Input: Crystal
• Output: Clock
• Frequency - Max: 460MHz
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-SSOP
• Frequency-max: 460MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 952906AFLF

General Description
ICS952906A is a 48 pin clock chip for VIA VN800/CN700/P4M800 style chipsets. When used with a fanout DDR buffer, such
as the 93788, it provides all the necessary clock signals for such a system.
The ICS952906A is part of a whole new line of ICS clock generators and buffers called TCH™ (Timing Control Hub). This part
incorporates ICS's newest clock technology which offers more robust features and functionality. Employing the use of a
serially programmable I
divider ratios, selecting the ideal spread percentage, the output skew, the output strength, and enabling/disabling each
individual output clock. M/N control can configure output frequency with resolution up to 0.1MHz increment.
Block Diagram
Power Groups
1236A—08/06/07
VTTPWRGD#/PD#
10, 17
VDD
24
27
34
40
48
3
Pin Number
CPU_STOP#
PCI_STOP#
Sel24_48#
Integrated
Circuit
Systems, Inc.
FS (4:0)
SDATA
MODE
SCLK
11, 18
X1
X2
GND
23
28
37
43
47
6
2
XTAL
C interface, this device can adjust the output clocks by configuring the frequency setting, the output
Control
Logic
48MHz Fix, Fix Digital, Fix analog
CPU Analog, CPU digital
2.5V for 25MHz outputs
PCICLK outputs
3V66 outputs
CPU outputs
Description
REF, Xtal
Programmable
Spread
PLL2
PLL1
3
Programmable
Frequency
Frequency
Dividers
Dividers
STOP
Logic
ICS952906A
48MHz
24_48MHz
REF (1:0)
CPUCLKT (1:0)/ITP
CPUCLKC (1:0)/ITP
25MHz (1:0)
3V66 (2:0)
PCICLK (6:0)
PCICLK_F (2:0)
RESET#
I REF