ICS9LPRS436CKILF Datasheet, PDF (3/20 Pages) Integrated Device Technology – Low Power Clock for Intel Atom®-Based Systems

ICS9LPRS436C
Low Power Clock for Intel Atom^®-Based Systems
Pin Description
PIN #
PIN NAME
1 **FS3/12_288M_2x
2 VDD12_288
3 PEREQ1#
4 PEREQ2#
5 **FS4/PCICLK0_2x
6 GND
7 VDDPCI
8 **ITP_EN/PCICLK_F0_2x
9 PEREQ3#
10 *SEL12_48#/12_48MHz_2x
11 VDD
12 FSLA/USB48_2x
13 GND
14 DOTT_96MHzLR
15 DOTC_96MHzLR
16 FSLB
17 GNDSATA
18 SATAT_LR/PCIeT_LR3
19 SATAC_LR/PCIeC_LR3
20 VDDSATA
21 PCIeT_LR0
22 PCIeC_LR0
23 PCIeT_LR1
24 PCIeC_LR1
TYPE
I/O
PWR
IN
IN
I/O
PWR
PWR
I/O
IN
I/O
PWR
I/O
PWR
OUT
OUT
IN
PWR
OUT
OUT
PWR
OUT
OUT
OUT
OUT
DESCRIPTION
Frequency select latch input pin / 12.288MHz output, 3.3V
Power for 12.288MHz PLL and output buffer, nominal 3.3V.
Real-time input pin that controls SATACLK and PCIEXCLK outputs that are
selected through the SMBus. 1 = selected outputs are disabled, 0 = selected
outputs are enabled.
Real-time input pin that controls SATACLK and PCIEXCLK outputs that are
selected through the SMBus. 1 = selected outputs are disabled, 0 = selected
outputs are enabled.
Frequency select latch input pin / 3.3V PCI clock output.
Ground pin.
Power supply for PCI clocks, nominal 3.3V
ITP Enable Latched Input/Free Running PCI clock output.
ITP_Enable Selects the functionality of the CPU_ITP/SRC output as follows:
1 = CPU_ITP output
0 = SRC output
Real-time input pin that controls PCIEXCLK outputs that are selected through
the SMBus. 1 = selected outputs are disabled, 0 = selected outputs are
enabled.
Latched select input for 12/48MHz output. 1=12MHz, 0=48MHz. 12/48MHz
clock output.
Power supply, nominal 3.3V
3.3V tolerant input for CPU frequency selection. Low voltage threshold inputs,
see input electrical characteristics for Vil_FS and Vih_FS values. / 48.00MHz
USB clock
Ground pin.
True clock of low power differential pair for 96.00MHz DOT clock. No 50ohm
to GND needed. No Rs needed.
Complementary clock of low power differential pair for 96.00MHz DOT clock.
No 50ohm resistor to GND needed. No Rs needed.
3.3V tolerant input for CPU frequency selection. Refer to input electrical
characteristics for Vil_FS and Vih_FS values.
Ground pin for the SATA outputs
True clock of differential SATA pair. / True clock of differential PCI-Express pair
- selectable by FS(4:3) ; both are 0.8V differential push pull outputs with
integrated 33ohm series resistor.
Complementary clock of differential SATA pair. / Complementary clock of
differential PCI-Express pair - selectable by FS(4:3); both are 0.8V differential
push pull outputs with integrated 33ohm series resistor.
Supply for SATA clocks, 3.3V nominal
True clock of 0.8V differential push-pull PCI_Express pair with integrated
33ohm series resistor
Complementary clock of 0.8V differential push-pull PCI_Express pair with
integrated 33ohm series resistor
True clock of 0.8V differential push-pull PCI_Express pair with integrated
33ohm series resistor
Complementary clock of 0.8V differential push-pull PCI_Express pair with
integrated 33ohm series resistor
IDT^® Low Power Clock for Intel Atom^®-Based Systems
1561A — 06/01/10
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