ICS954201BG IDT, Integrated Device Technology Inc, ICS954201BG Datasheet - Page 13

• Manufacturer Part Number: ICS954201BG
• Description: IC TIMING CTRL HUB P4 56-TSSOP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock/Frequency Synthesizerr

Specifications of ICS954201BG

• Frequency - Max: 400MHz
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 56-TSSOP
• Frequency-max: 400MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Output: -
• Input: -
• Other names: 954201BG

0819H—02/17/06
SMBus Table: Test and Readback Control Register
SMBus Table: Vendor & Revision ID Register
Comments
· FS_C/TEST_SEL is a 3-level latched input.
FS_C.
· When pin is FS_C, VIH_FS and VIL_FS levels
apply.
· FS_B/TEST_MODE is a low-threshold input
· TEST_SEL can be invoked after power up
through SMBus B6b6.
TEST_MODE. The FS_B/TEST_Mode pin is not
used.
· Power must be cycled to exit TEST.
B6b6: 1= ENTER TEST MODE, Default = 0 (NORMAL OPERATION)
B6b7: 1= REF/N, Default = 0 (HI-Z)
Test Clarification Table
o Power-up w/ V >= 2.0V to select TEST
o Power-up w/ V < 2.0V to have pin function as
o VIH_FS and VIL_FS levels apply.
o TEST_MODE is a real time input
o If TEST is selected by B6b6, only B6b7 controls
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Byte 6
Byte 7
Integrated
Circuit
Systems, Inc.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Pin #
Pin #
Test Clock Mod eEntry
REFOUT STRENGTH
Test Mode Selection
PCI/SRC_STOP
Name
Name
FS_C
FS_B
FS_A
RID3
RID2
RID1
RID0
VID3
VID2
VID1
VID0
FS_C/TEST
HW PIN
_SEL
0
1
1
1
1
0
0
HW
FS_B/TEST
Stop all PCI and SRC
Test Mode Selection
HW PIN
_MODE
Control Function
Control Function
13
Strength Prog
REVISION ID
X
X
X
0
0
1
1
VENDOR ID
Test Mode
RESERVED
readback
readback
readback
clocks
ENTRY
TEST
B6b6
BIT
X
X
X
X
0
1
1
SW
REF/N or
B6b7
HI-Z
Type
Type
X
RW
RW
RW
RW
0
1
0
1
0
1
R
R
R
R
R
R
R
R
R
R
R
NORMAL
OUTPUT
REF/N
REF/N
REF/N
REF/N
Enabled
Disable
HI-Z
HI-Z
Hi-Z
1X
0
0
-
-
-
-
-
-
-
-
-
-
-
Disabled
Enable
REF/N
2X
1
1
-
-
-
-
-
-
-
-
-
-
-
ICS954201
LATCHED
LATCHED
LATCHED
PWD
PWD
0
0
0
1
1
0
0
0
1
0
0
0
1