SL28748ELC Silicon Laboratories Inc, SL28748ELC Datasheet - Page 2

• Manufacturer Part Number: SL28748ELC
• Description: Clock Generators & Support Products Calpella IronLake Jasper Forest IbexPk
• Manufacturer: Silicon Laboratories Inc

Specifications of SL28748ELC

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DOC#: SP-AP-0017 (Rev. AA)
32-QFN Pin Definitions
Pin No.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
VDD_DOT
VSS_DOT
DOT96
DOT96#
VDD_27
27M_NSS
27M_SS
VSS_27
VSS_SATA
SRC0 / SATA
SRC0# / SATA#
VSS_SRC
SRC1
SRC1#
VDD_SRC_IO
CPU_STP#
VDD_SRC
VDD_CPU_IO
CPU1#
CPU1
VSS_CPU
CPU0#
CPU0
VDD_CPU
CKPWRGD/PD#
VSS_REF
XOUT
XIN
VDD_REF
REF/FS**
SDATA
SCLK
Name
PD, I/O 3.3V tolerant input for Graphic clock selection/fixed 14.318MHz clock output.
O, DIF Fixed true 96MHz clock output
O, DIF Fixed complement 96MHz clock output
O, DIF 100MHz True differential serial reference clock
O, DIF 100MHz Complement differential serial reference clock
O, DIF 100MHz True differential serial reference clock
O, DIF 100MHz Complement differential serial reference clock
O, DIF Complement differential CPU clock output
O, DIF True differential CPU clock output
O, DIF Complement differential CPU clock output
O, DIF True differential CPU clock output
O, SE Spread 27MHz video clock output
O, SE 14.318MHz Crystal output
PWR
PWR
O,SE Non-spread 27MHz video clock output
PWR
PWR
PWR
PWR
PWR
Type
GND
GND
GND
GND
GND
GND
I/O
I
I
I
I
Ground for 27MHz PLL
Ground for outputs
3.3V tolerance input to stop the CPU clock
3.3V LVTTL input. This pin is a level sensitive strobe used to latch the FS.
Ground for outputs
SMBus compatible SDATA
SMBus compatible SCLOCK
3.3V Power supply for outputs and PLL
Ground for outputs
3.3V Power supply for 27MHz PLL
Ground for PLL
Scalable 3.3V to 1.05V power supply for output buffer
3.3V Power supply for PLL
Scalable 3.3V to 1.05V power supply for output buffer
Ground for PLL
3.3V Power supply for CPU PLL
After CKPWRGD (active HIGH) assertion, this pin becomes a real-time input for
asserting power down (active LOW)
14.318MHz Crystal input
3.3V Power supply for outputs and also maintains SMBUS registers during
power-down
(Internal 100K-ohm pull-down resistor on FS pin)
Refer to DC Electrical Specifications table for Vil_FS and Vih_FS specifications
Description
SL28748
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