參數(shù)資料
型號(hào)： 9EPRS488CKLF
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類： 微控制器/微處理器
英文描述： SPECIALTY MICROPROCESSOR CIRCUIT, PQCC72
封裝： ROHS COMPLIANT, PLASTIC, MLF-72
文件頁(yè)數(shù)： 12/22頁(yè)
文件大小： 266K
代理商： 9EPRS488CKLF
2
Integrated
Circuit
Systems, Inc.
ICS9EPRS488
Datasheet
1616—08/20/09
Pin Description
PIN #
PIN NAME
PIN TYPE
DESCRIPTION
1
SMBCLK
IN
Clock pin of SMBus circuitry, 5V tolerant.
2
SMBDAT
I/O
Data pin for SMBus circuitry, 5V tolerant.
3
VDD
PWR
Power supply for SRC7/27MHz
4
SRC7C_LPRS/27MHz_NS
OUT
True clock of low power differential SRC clock pair. (no 50ohm shunt resistor to GND and no 33 ohm
series resistor needed)/27MHz 3.3V Single-ended non-spread output for discrete graphics
5
SRC7T_LPRS/27MHz_SS
OUT
Complement clock of low power differential SRC clock pair. (no 50ohm shunt resistor to GND and no 33
ohm series resistor needed)/27MHz 3.3V Single-ended spreading output for discrete graphics
6
GND
Ground pin for SRC7/27MHz
7
SRC5C_LPRS
OUT
Complement clock of low power differential SRC clock pair. (no 50ohm shunt resistor to GND and no 33
ohm series resistor needed)
8
SRC5T_LPRS
OUT
True clock of low power differential SRC clock pair. (no 50ohm shunt resistor to GND and no 33 ohm
series resistor needed)
9
SRC4C_LPRS
OUT
Complement clock of low power differential SRC clock pair. (no 50ohm shunt resistor to GND and no 33
ohm series resistor needed)
10
SRC4T_LPRS
OUT
True clock of low power differential SRC clock pair. (no 50ohm shunt resistor to GND and no 33 ohm
series resistor needed)
11
GNDSRC
GND
Ground pin for the SRC outputs
12
VDDSRC_IO
PWR
Power supply for differential SRC outputs, nominal 1.05V to 3.3V
13
SRC3C_LPRS
OUT
Complement clock of low power differential SRC clock pair. (no 50ohm shunt resistor to GND and no 33
ohm series resistor needed)
14
SRC3T_LPRS
OUT
True clock of low power differential SRC clock pair. (no 50ohm shunt resistor to GND and no 33 ohm
series resistor needed)
15
SRC2C_LPRS
OUT
Complement clock of low power differential SRC clock pair. (no 50ohm shunt resistor to GND and no 33
ohm series resistor needed)
16
SRC2T_LPRS
OUT
True clock of low power differential SRC clock pair. (no 50ohm shunt resistor to GND and no 33 ohm
series resistor needed)
17
VDDSRC
PWR
Supply for SRC core, 3.3V nominal
18
VDDSRC_IO
PWR
Power supply for differential SRC outputs, nominal 1.05V to 3.3V
19
GNDSRC
GND
Ground pin for the SRC outputs
20
SRC1C_LPRS
OUT
Complement clock of low power differential SRC clock pair. (no 50ohm shunt resistor to GND and no 33
ohm series resistor needed)
21
SRC1T_LPRS
OUT
True clock of low power differential SRC clock pair. (no 50ohm shunt resistor to GND and no 33 ohm
series resistor needed)
22
SRC0C_LPRS
OUT
Complement clock of low power differential SRC clock pair. (no 50ohm shunt resistor to GND and no 33
ohm series resistor needed)
23
SRC0T_LPRS
OUT
True clock of low power differential SRC clock pair. (no 50ohm shunt resistor to GND and no 33 ohm
series resistor needed)
24
**CLKREQ0#
IN
Clock Request pin for SRC0 outputs. If output is selected for control, then that output is controlled as
follows:
0 = enabled, 1 = Low-Low
25
ATIG2C_LPRS
OUT
Complementary clock of low-power differential push-pull PCI-Express pair with integrated series
resistor. (no 50ohm shunt resistor to GND and no 33 ohm series resistor needed)
26
ATIG2T_LPRS
OUT
True clock of low-power differential push-pull PCI-Express pair with integrated series resistor. (no
50ohm shunt resistor to GND and no 33 ohm series resistor needed)
27
GNDATIG
GND
Ground pin for the ATIG outputs
28
VDDATIG_IO
PWR
Power supply for differential ATIG outputs, nominal 1.05V to 3.3V
29
VDDATIG
PWR
Power supply for ATIG core, nominal 3.3V
30
ATIG1C_LPRS
OUT
Complementary clock of low-power differential push-pull PCI-Express pair with integrated series
resistor. (no 50ohm shunt resistor to GND and no 33 ohm series resistor needed)
31
ATIG1T_LPRS
OUT
True clock of low-power differential push-pull PCI-Express pair with integrated series resistor. (no
50ohm shunt resistor to GND and no 33 ohm series resistor needed)
32
ATIG0C_LPRS
OUT
Complementary clock of low-power differential push-pull PCI-Express pair with integrated series
resistor. (no 50ohm shunt resistor to GND and no 33 ohm series resistor needed)
33
ATIG0T_LPRS
OUT
True clock of low-power differential push-pull PCI-Express pair with integrated series resistor. (no
50ohm shunt resistor to GND and no 33 ohm series resistor needed)
34
SB_SRC1C_LPRS
OUT
Complement clock of low power differential Chipset-to-Chipset SRC clock pair. (no 50ohm shunt resistor
to GND and no 33 ohm series resistor needed
35
SB_SRC1T_LPRS
OUT
True clock of low power differential Chipset-to-Chipset SRC clock pair. (no 50ohm shunt resistor to GND
and no 33 ohm series resistor needed
36
GNDSB_SRC
GND
Ground pin for the SB_SRC outputs
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