CY28339
Intel CK408 Mobile Clock Synthesizer
Features
• Compliant with Intel® CK 408 rev 1.1 Mobile Clock
• One VCH clock
Synthesizer specifications
• One reference clock at 14.318 MHz
• SMBus support with read-back capabilities
• 3.3V power supply
• Two differential CPU clocks
• Ideal Lexmark profile Spread Spectrum electromag-
• Nine copies of PCI clocks
netic interference (EMI) reduction
• Three copies configurable PCI free-running clocks
• Two 48 MHz clocks (USB, DOT)
• Five/six copies of 3V66 clocks
• Dial-a-Frequency™ features
• Dial-a-dB™ features
• 48-pin TSSOP package
Table 1. Frequency Table[1]
66BUFF(0:2)/
S2
1
1
0
0
S1 CPU (1:2)
3V66
66M
66M
66M
66M
3V66(0:4)
66IN
66IN/3V66–5
66-MHz clock input
66-MHZ clock input
66M
PCIF, PCI
66IN/2
66IN/2
33 M
33 M
TCLK/8
REF
USB/ DOT
48M
48M
48M
48M
TCLK/2
0
1
0
1
0
100M
133M
100M
133M
14.318M
14.318M
14.318M
14.318M
TCLK
66IN
66M
66M
TCLK/4
66M
TCLK/4
M
TCLK/2
TCLK/4
Block Diagram
Pin Configuration
VDD_REF
REF
X1
X2
XTAL
OSC
PWR
Top View
PLL Ref Freq
VDD_REF
XIN
XOUT
GND_REF
PCI7
PCI8
PCIF
GND_PCI
PCI0
PCI1
PCI2
VDD_PCI
PCI4
1
2
3
4
5
6
48
47
46
45
44
43
42
REF
S1
CPU_STOP#
Divider
PLL 1
Network
VDD_CPU
CPUT1:2
Stop
PWR
Clock
Gate
VDD_CPU
CPUT1
CPUC1
S1:2
VTT_PWRGD##
CPU_STOP#
Control
CPUC1:2
7
VDD_PCI
PCIF
PCI0:2
PCI4:8
GND_CPU
41
40
39
38
8
9
10
11
PWR
VDD_CPU
CPUT2
CPUC2
Stop
Clock
Control
IREF
S2
USB_48MHz
37
36
35
34
33
12
13
PCI_STOP#
PD#
PCI5
PCI6
VDD_3V66
GND_3V66
/2
VDD_3V66
3V66_0:1
14
15
16
17
18
PWR
PWR
DOT_48MHz
3V66_2:4/
66BUFF0:2
VDD_48 MHz
GND_48 MHz
3V66_1/VCH
PCI_STOP#
3V66_0
PWR
3V66_5/ 66IN
32
31
30
29
28
27
26
66BUFF0/3V66_2
66BUFF1/3V66_3
66BUFF2/3V66_4
19
20
21
22
23
24
66IN/3V66_5
VDD_48MHz
USB (48MHz)
PLL 2
PD#
VDD_CORE
VDD_3V66
DOT (48MHz)
GND_3V66
SCLK
SDATA
GND_CORE
VTT_PWRGD#
VCH_CLK/ 3V66_1
25
SDATA
SCLK
SMBus
Logic
Note:
1. TCLK is a test clock driven on the XTAL_IN input during test mode. M = driven to a level between 1.0V and 1.8V. If the S2 pin is at a M level during power-up,
a 0 state will be latched into the device’s internal state register.
Cypress Semiconductor Corporation
•
3901 North First Street
•
San Jose, CA 95134
•
408-943-2600
Document #: 38-07507 Rev. *A
Revised June 25, 2004