954204BGLFT Integrated Device Technology (Idt), 954204BGLFT Datasheet - Page 12

• Manufacturer Part Number: 954204BGLFT
• Description: PLL Clock Synthesizer Dual 56-Pin TSSOP T/R
• Manufacturer: Integrated Device Technology (Idt)
• Type: PLL Clock Synthesizerr

Specifications of 954204BGLFT

• Package: 56TSSOP
• Number Of Elements Per Chip: 2
• Output Frequency Range: 33.33 to 400 MHz
• Operating Temperature: 0 to 70 °C
• Operating Supply Voltage: 3.3 V

0933D—03/16/05
SMBus Table: DO T PD Mode an d O u tput Free-Running Contro l Reg ister
SMBus Table: O utput Mod e Control Register
SMBus Table: Test Mode, FS Readback, and PCI Stop# Co ntrol Register
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
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Byte 4
Byte 5
Byte 6
30, 31, 35, 36
30, 31, 35, 36
17-20, 22-27,
17-20, 22-27,
Integrated
Circuit
Systems, Inc.
14, 15
35, 36
40, 41
43, 44
35, 36
40, 41
43, 44
35, 36
40, 41
43, 44
52
53
16
12
Pin #
Pin #
Pin #
9
8
-
-
-
CPUCLK_1 PD Drive Mode
CPUCLK_0 PD Drive Mode
DO T _96MHz Power Down
CPU_STO P# Drive Mode
CPUCLK_1 CPU_STO P#
CPUCLK_0 CPU_STO P#
(Activ e only when B6b6 =
CPUCLK2_ITP PD Driv e
PCI/SRC_STO P# Driv e
Test Clock Mode Entry
REF O UT STRENG TH
SRC(7:0), 96MHz_SS
T est Mode Selection
PCI/SRC_STO P#
CPUCLK2_ITP
PD Driv e Mode
PCICLK_F1
PCICLK_F0
Driv e Mode
Driv e Mode
CPUCLK_2
CPUCLK_1
CPUCLK_0
SRC(7:0)
Nam e
Nam e
Nam e
F S_C
Mode
Mode
Mode
FS_B
FS_A
1)
Stop all PCI and SRC cloc ks
Driv en in PCI/SRC_STO P#
Free-Running Control, not
Free-Running Control, not
affec ted by CPU_STO P#
Driven in CPU_ST O P#
Driven in CPU_ST O P#
Driven in CPU_ST O P#
Test Mode Selec tion
Control Function
Control Function
Control Function
PCI/SRC_STO P#
Strength Prog
Driv en in PD
Driv en in PD
Driv en in PD
Driv en in PD
Driv en in PD
affec ted by
T est Mode
Readback
Readback
Readback
12
Reserved
Reserved
Reserved
Type
Type
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Free-Running
Free-Running
Free-Running
Free-Running
Free-Running
O peration
Stopped
O utputs
Normal
Driv en
Driv en
Driv en
Driv en
Driv en
Driv en
Driv en
Driv en
Driv en
Hi-Z
1X
0
0
0
-
-
-
Test Mode
Stoppable
Stoppable
Stoppable
Stoppable
Stoppable
per B6b7
O utputs
REF/N
Activ e
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
2X
1
1
1
-
-
-
ICS954204
LATCHED
LATCHED
LATCHED
PWD
PWD
PWD
0
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
1
1
-