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CY28329
133-MHz Spread Spectrum Clock Synthesizer/Driver with Differential CPU Outputs
Features
* Multiple output clocks at different frequencies -- Four pairs of differential CPU outputs, up to 133 MHz -- Ten synchronous PCI clocks, three free-running -- Six 3V66 clocks -- Two 48-MHz clocks -- One reference clock at 14.318 MHz -- One VCH clock * Spread Spectrum clocking (down spread) * Power-down features (PCI_STOP#, PD#) * Three Select inputs (Mode select & IC Frequency Select) * OE and Test Mode support * 56-pin SSOP package and 56-pin TSSOP package
Benefits
* Motherboard clock generator -- Support Multiple CPUs and a chipset -- Support for PCI slots and chipset -- Supports AGP and Hub Link -- Supports USB host controller and graphic controller -- Supports ISA slots and I/O chip * Enables reduction of EMI and overall system cost * Enables ACPI compliant designs * Supports up to four CPU clock frequencies * Enables ATE and "bed of nails" testing * Widely available, standard package enables lower cost
Logic Block Diagram
VDD_REF
PWR
Pin Configurations
SSOP and TSSOP Top View
VDD_REF XTAL_IN XTAL_OUT GND_REF PCI_F0
PWR
X1 X2
XTAL OSC
REF
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
56 55 54 53 52 51 50 49 48 47 46
REF S1 CPU3 CPU3# CPU0 CPU0# VDD_CPU CPU1 CPU1# GND_CPU VDD_CPU CPU2 CPU2# MULT0 IREF GND_IREF S2 USB DOT VDD_ 48 MHz GND_ 48 MHz 3V66_1/VCH PCI_STOP# 3V66_0 VDD_3V66 GND_3V66 SCLK SDATA
PLL Ref Freq PLL 1
Mult0 S1:2 VTTPWRGD#
Gate
Divider Network VDD_CPU CPU[0:3] CPU[0:3]#
PCI_F1 PCI_F2 VDD_PCI GND_PCI PCI0 PCI1 PCI2 PCI3 VDD_PCI GND_PCI PCI4 PCI5 PCI6 VDD_3V66 GND_3V66 66BUFF0/3V66_2 66BUFF1/3V66_3 66BUFF2/3V66_4 66IN/3V66_5 PD# VDD_CORE GND_CORE VTTPWRGD#
PWR Stop Clock Control
VDD_PCI PCI_F[0:2] PCI0:6
CY28329
45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29
PCI_STOP#
/2
PD#
VDD_3V66 3V66_0
PWR
PWR
3V66_[2:]4/ 66BUFF0:2 3V66_5/ 66IN
PLL 2
VDD_48MHz
PWR
USB (48MHz) DOT (48MHz) VCH_CLK/ 3V66_1
SDATA SCLK
SMBus Logic
Cypress Semiconductor Corporation Document #: 38-07040 Rev. *E
*
3901 North First Street
*
San Jose, CA 95134 * 408-943-2600 Revised January 19, 2005
CY28329
Pin Description
Name REF XTAL_IN XTAL_OUT CPU, CPU [0:3]# 3V66_0 3V66_1/VCH 66IN/3V66_5 66BUFF [0:2] /3V66 [2:4] PCI_F [0:2] PCI [0:6] USB DOT S2 S1 IREF MULT0 PD# PCI_STOP# VTTPWRGD# 56 2 3 44, 45, 48, 49, 51, 52, 53, 54 33 35 24 21, 22, 23 5, 6, 7, Pins 3.3V 14.318-MHz clock output 14.318-MHz crystal input 14.318-MHz crystal input Differential CPU clock outputs 3.3V 66-MHz clock output 3.3V selectable through SMBus to be 66 MHz or 48 MHz 66-MHz input to buffered 66BUFF and PCI or 66-MHz clock from internal VCO 66-MHz buffered outputs from 66Input or 66-MHz clocks from internal VCO 33-MHz clocks divided down from 66Input or divided down from 3V66 Description
10, 11, 12, 13, 16, PCI clock outputs divided down from 66Input or divided down from 3V66 17, 18 39 38 40 55 42 43 25 34 28 Fixed 48-MHz clock output Fixed 48-MHz clock output Special 3.3V 3-level input for Mode selection 3.3V LVTTL inputs for CPU frequency selection A precision resistor is attached to this pin which is connected to the internal current reference 3.3V LVTTL input for selecting the current multiplier for the CPU outputs 3.3V LVTTL input for Power_Down# (active LOW). Do not add any decoupling capacitors. Use an external 1.0-K pull-up resistor. 3.3V LVTTL input for PCI_STOP# (active LOW) 3.3V LVTTL input is a level-sensitive strobe used to determine when S[1:2] and MULT0 inputs are valid and OK to be sampled (Active LOW). Once VTTPWRGD# is sampled LOW, the status of this output will be ignored. SMBus-compatible SDATA SMBus-compatible Sclk 3.3V power supply for outputs
SDATA SCLK VDD_REF, VDD_PCI, VDD_3V66, VDD_48 MHz, VDD_CPU VDD_CORE GND_REF, GND_PCI, GND_3V66, GND_IREF, VDD_CPU GND_CORE
29 30 1, 8, 14, 19, 32, 37, 46, 50
26 4, 9, 15, 20, 31, 36, 41, 47
3.3V power supply for PLL Ground for outputs
27
Ground for PLL
Document #: 38-07040 Rev. *E
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CY28329
Function Table[1]
S2 1 1 0 0 Mid Mid S1 0 1 0 1 0 1 CPU (MHz) 100 MHz 133 MHz 100 MHz 133 MHz Hi-Z TCLK/2 3V66[0:1]( MHz) 66 MHz 66 MHz 66 MHz 66 MHz Hi-Z TCLK/4 66BUFF[0:2]/ 3V66[2:4] (MHz) 66IN 66IN 66 MHz 66 MHz Hi-Z TCLK/4 66IN/3V66_5 (MHz) 66-MHz Input 66-MHz Input 66-MHz Input 66-MHz Input Hi-Z TCLK/4 PCI_F/PCI (MHz) 66IN/2 66IN/2 33 MHz 33 MHz Hi-Z TCLK/8 REF0(MHz) 14.318 MHz 14.318 MHz 14.318 MHz 14.318 MHz Hi-Z TCLK USB/DOT (MHz) 48 MHz 48 MHz 48 MHz 48 MHz Hi-Z TCLK/2 Notes 2, 3, 4 2, 3, 4 2, 3, 4 2, 3, 4 5, 6 1, 6
Swing Select Functions
Mult0 0 1 Board Target Trace/Term Z 50 ohm 50 ohm Reference R, IREF = VDD/(3*Rr) Rr = 221 1%, IREF = 5.00 mA Rr = 475 1%, IREF = 2.32 mA Output Current IOH = 4*Iref IOH = 6*Iref VOH @ Z, 1.0V @ 50 0.7V @ 50
Clock Driver Impedances
Impedance Buffer Name CPU, CPU# REF PCI, 3V66, 66BUFF USB DOT 3.135-3.465 3.135-3.465 3.135-3.465 3.135-3.465 VDD Range Buffer Type Type X1 Type 3 Type 5 Type 3A Type 3B 20 12 12 12 Min. (Ohm) Typ. (Ohm) 50 40 30 30 30 60 55 55 55 Max. (Ohm)
Clock Enable Configuration
PD# 0 1 1 PCI_STOP# X 0 1 CPU IREF*2 ON ON CPU# FLOAT ON ON 3V66 LOW ON ON 66BUFF LOW ON ON PCI_F LOW ON ON PCI LOW OFF ON USB/DOT LOW ON ON VCOS/OSC OFF ON ON
Notes: 1. TCLK is a test clock driven in on the XTALIN input in test mode. 2. "Normal" mode of operation. 3. Range of reference frequency allowed is min. = 14.316 nominal = 14.31818 MHz, max. = 14.32 MHz. 4. Frequency accuracy of 48 MHz must be +167 PPM to match USB default. 5. Required for board level "bed of nails" testing. 6. Mid is defined a Voltage level between 1.0V and 1.8V for 3 level input functionality. Low is below 0.8V. High is above 2.0V.
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CY28329
Serial Data Interface (SMBus)
To enhance the flexibility and function of the clock synthesizer, a two-signal SMBus interface is provided according to SMBus specification. Through the Serial Data Interface, various device functions such as individual clock output buffers, etc. can be individually enabled or disabled. CY28329 support both block read and block write operations. The registers associated with the Serial Data Interface initializes to its default setting upon power-up, and therefore use of this interface is optional. Clock device register changes are normally made upon system initialization, if any are required. The interface can also be used during system operation for power management functions. Data Protocol The clock driver serial protocol accepts only Block Writes from the controller. The bytes must be accessed in sequential order from lowest to highest byte, (most significant bit first) with the ability to stop after any complete byte has been transferred. Indexed bytes are not allowed.
Start Slave Address bit 1 1 0 1 0 0 1 0 1 bit 7 bits R/W 0/1 1 A Command Code A Byte Count = A 00000000 N 1 8 bits 1 8 bits 1
A Block write begins with a slave address and a WRITE condition. The R/W bit is used by the SMBus controller as a data direction bit. A zero indicates a WRITE condition to the clock device. The slave receiver address is 11010010 (D2h). A command code of 0000 0000 (00h) and the byte count bytes are required for any transfer. After the command code, the core logic issues a byte count, which describes number of additional bytes required for the transfer, not including the command code and byte count bytes. For example, if the host has 20 data bytes to send, the first byte would be the number 20 (14h), followed by the 20 bytes of data. The byte count byte is required to be a minimum of 1 byte and a maximum of 32 bytes It may not be 0. Figure 1 shows an example of a block write. A transfer is considered valid after the acknowledge bit corresponding to the byte count is read by the controller.
Data Byte 0 8 bits
A 1
...
Data Byte N-1 A Stop bit 8 bits 1 1 bit
From Master to Slave From Slave to Master Figure 1. An Example of a Block Write
Data Byte Configuration Map
Data Byte 0: Control Register (0 = Enable, 1 = Disable) Bit Bit 7 Affected Pin# 5, 6, 7, 10, 11, 12, 13, 16, 17, 18, 33, 35 - 35 - 10, 11, 12, 13, 16, 17, 18 40 55 - Name PCI [0:6] CPU[3:0] 3V66[1:0] - 3V66_1/VCH - PCI [6:0] Description Spread Spectrum Enable 0 = Spread Off, 1 = Spread On Type R/W Power On Default 0
Bit 6 Bit 5 Bit 4 Bit 3
Reserved, set = 0 VCH Select 66 MHz/48 MHz 0 = 66 MHz, 1 = 48 MHz Reserved PCI_STOP#, 0 = stopped, 1 = running (Does not affect PCI_F [2:0] pins) S2 Reflects the value of the S2 pin sampled on Power-up S1 Reflects the value of the S1 pin sampled on Power-up Reserved
R R/W R R/W
0 0 1 1
Bit 2 Bit 1 Bit 0
S2 S1 -
R R R
HW HW 1
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CY28329
Data Byte 1: Bit Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Data Byte 2: Bit Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Data Byte 3: Bit Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Pin# 38 39 7 6 5 7 6 5 Name DOT USB PCI_F2 PCI_F1 PCI_F0 PCI_F2 PCI_F1 PCI_F0 Pin Description DOT 48 MHz Output Enable, 1 = enabled, 0 = disabled USB 48 MHz Output Enable, 1 = enabled, 0 = disabled Allow control of PCI_F2 with assertion of PCI_STOP# 0 = Free running; 1 = Stopped with PCI_STOP# Allow control of PCI_F1 with assertion of PCI_STOP# 0 = Free running; 1 = Stopped with PCI_STOP# Allow control of PCI_F0 with assertion of PCI_STOP# 0 = Free running; 1 = Stopped with PCI_STOP# PCI_F2 Output Enable, 1 = enabled, 0 = disabled PCI_F1Output Enable, 1 = enabled, 0 = disabled PCI_F0 Output Enable, 1 = enabled, 0 = disabled Type R/W R/W R/W R/W R/W R/W R/W R/W Power On Default 1 1 0 0 0 1 1 1 Pin# - 18 17 16 13 12 11 10 Name - PCI6 PCI5 PCI4 PCI3 PCI2 PCI1 PCI0 Reserved, set = 0 PCI6 Output Enable 1 = Enabled; 0 = Disabled PCI5 Output Enable 1 = Enabled; 0 = Disabled PCI4 Output Enable 1 = Enabled; 0 = Disabled PCI3 Output Enable 1 = Enabled; 0 = Disabled PCI2 Output Enable 1 = Enabled; 0 = Disabled PCI1 Output Enable 1 = Enabled; 0 = Disabled PCI0 Output Enable 1 = Enabled; 0 = Disabled Pin Description Type R R/W R/W R/W R/W R/W R/W R/W Power On Default 0 1 1 1 1 1 1 1 Pin# - 53, 54 - - - 44, 45 48, 49 51, 52 CPU3 CPU3# - - - CPU2 CPU2# CPU1 CPU1# CPU0 CPU0# Name CPU Mult0 Value CPU3 Output Enable 1 = Enabled; 0 = Disabled Reserved, set = 0 Reserved, set = 0 Reserved, set = 0 CPU2 Output Enable 1 = Enabled; 0 = Disabled CPU1Output Enable 1 = Enabled; 0= Disabled CPU0 Output Enable 1 = Enabled; 0 = Disabled Description Type R R/W R/W R/W R/W R/W R/W R/W Power On Default HW 1 0 0 0 1 1 1
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CY28329
Data Byte 4: Bit Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Pin# - - 33 35 24 3V66_0 3V66_1/VCH 66IN/3V66_5 Name Reserved, set = 0 Reserved, set = 0 3V66_0 Output Enable 1 = Enabled; 0 = Disabled 3V66_1/VCH Output Enable 1 = Enabled; 0 = Disabled 3V66_5 Output Enable 1 = Enable; 0 = Disable Note: This bit should be used when pin 24 is configured as 3V66_5 output. do not clear this bit when pin 24 is configured as 66IN input. 66-MHz Buffered 2 Output Enable 1 = Enabled; 0 = Disabled 66-MHz Buffered 1 Output Enable 1 = Enabled; 0 = Disabled 66-MHz Buffered 0 Output Enable 1 = Enabled; 0 = Disabled Pin Description Type R R R/W R/W R/W Power On Default 0 0 1 1 1
Bit 2 Bit 1 Bit 0 Data Byte 5: Bit Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
23 22 21
66BUFF2 66BUFF1 66BUFF0
R/W R/W R/W
1 1 1
Pin#
Name Reserved, set = 0 Reserved, set = 0
Pin Description
Type R R R/W R/W R/W R/W R/W R/W
Power On Default 0 0 0 0 0 0 0 0
21,22,23 38 39
66BUFF [2:0] DOT USB
Tpd 66IN to 66BUFF propagation delay control DOT edge rate control USB edge rate control
Byte 6: Vendor ID Bit Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Revision Code Bit 3 Revision Code Bit 2 Revision Code Bit 1 Revision Code Bit 0 Vendor ID Bit 3 Vendor ID Bit 2 Vendor ID Bit 1 Vendor ID Bit 0 Description Type R R R R R R R R Power On Default 0 0 0 0 1 0 0 0
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CY28329
Absolute Maximum Conditions
(Above which the useful life may be impaired. For user guidelines, not tested.) Supply Voltage ..................................................-0.5 to +7.0V Input Voltage ............................................ -0.5V to VDD + 0.5 Storage Temperature (Non-Condensing).... -65C to +150C Max. Soldering Temperature (10 sec.) ..................... +260C Junction Temperature ............................................... +150C Package Power Dissipation.............................................. 1W
Operating Conditions
Parameter
Static Discharge Voltage......................................................... (per MIL-STD-883, Method 3015) ............................ > 2000V over which electrical parameters are guaranteed[7] Description 3.3V Supply Voltages Operating Temperature, Ambient Input Pin Capacitance XTAL Pin Capacitance Max. Capacitive Load on USBCLK, REF PCICLK, 3V66 Reference Frequency, Oscillator Nominal Value 14.318 Min. 3.135 0 Max. 3.465 70 5 22.5 20 30 14.318 Unit V C pF pF pF
VDD_REF, VDD_PCI,VDD_CORE, VDD_3V66, VDD_48 MHz, VDD_CPU, TA Cin CXTAL CL f(REF)
MHz
DC Electrical Specifications Over the Operating Range
Parameter VIH VIL VOH VOL IIH IIL IOH Description High-level Input Voltage Low-level Input Voltage High-level Output Voltage Low-level Output Voltage Input High Current Input Low Current High-level Output Current Except Crystal Pads USB, REF, 3V66 PCI USB, REF, 3V66 PCI 0 < VIN < VDD 0 < VIN < VDD CPU For IOH =6*IRef Configuration REF, DOT, USB 3V66, DOT, PCI IOL Low-level Output Current REF, DOT, USB 3V66, PCI IOZ IDD3 IDDPD3 IDDPD3 Output Leakage Current 3.3V Shutdown Current 3.3V Shutdown Current Three-state VDD_CORE/VDD3.3 = 3.465V and @ IREF = 2.32 mA VDD_CORE/VDD3.3 = 3.465V and @ IREF = 5.0 mA Type X1, VOH = 0.65V Type X1, VOH = 0.74V Type 3, VOH = 1.00V Type 3, VOH = 3.135V Type 5, VOH = 1.00V Type 5, VOH = 3.135V Type 3, VOL = 1.95V Type 3, VOL = 0.4V Type 5, VOL =1.95 V Type 5, VOL = 0.4V 3.3V Power Supply Current VDD_CORE/VDD3.3 = 3.465V, FCPU = 133 MHz 30 38 10 360 25 45 mA mA mA mA 29 27 -33 -33 mA -29 -23 IOH = -1 mA IOH = -1 mA IOL = 1 mA IOL = 1 mA -5 -5 12.9 14.9 2.4 2.4 0.4 0.55 5 5 Test Conditions Except Crystal Pads. Threshold voltage for crystal pads = VDD/2 Min. Max. Unit 2.0 0.8 V V V V V V mA mA mA
Note: 7. Multiple Supplies: the voltage on any input or I/O pin cannot exceed the power pin during power-up. Power supply sequencing is NOT required.
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CY28329
Switching Characteristics Over the Operating Range[8]
Parameter t1 t2 t2 t2 t3 t3 t3 t4 t5 t5 t6 t7 t8 t9 t9 t9 t9 t10 Voh Vol Vcrossover All CPU USB, REF, DOT PCI, 3V66 CPU USB, REF, DOT PCI, 3V66 CPU 3V66 [0:1] 66BUFF[0:2] PCI 3V66, PCI CPU 3V66 USB, DOT PCI REF ALL CPU CPU CPU CPU Output Description Output Duty Cycle[9] Rise Time Rising Edge Rate Rising Edge Rate Fall Time Falling Edge Rate Falling Edge Rate CPU-CPU Skew 3V66-3V66 Skew 66BUFF-66BUFF Skew PCI-PCI Skew 3V66-PCI Clock Skew Cycle-Cycle Clock Jitter Cycle-Cycle Clock Jitter Cycle-Cycle Clock Jitter Cycle-Cycle Clock Jitter Cycle-Cycle Clock Jitter POR timing Rise/Fall Matching High-level Output Voltage including overshoot Low-level Output Voltage including undershoot Crossover Voltage Test Conditions Measured at 1.5V Measured differential waveform from -0.35V to +0.35V Between 0.4V and 2.4V Between 0.4V and 2.4V Measured differential waveform from -0.35V to +0.35V Between 2.4V and 0.4V Between 2.4V and 0.4V Measured at Crossover Measured at 1.5V Measured at 1.5V Measured at 1.5V 3V66 leads. Measured at 1.5V Measured at Crossover t8 = t8A - t8B With all outputs running Measured at 1.5V t9 = t9A - t9B Measured at 1.5V t9 = t9A - t9B Measured at 1.5V t9 = t9A - t9B Measured at 1.5V t9 = t9A - t9B Measured at 1.5V[10, 11] 1.0 0.92 -0.2 0.250 Measured with test loads[12, 13] Measured with test loads[13] Measured with test loads[13] Measured with test loads[13] 1.5 Min. 45 175 0.5 1.0 175 0.5 1.0 Max. 55 700 2.0 4.0 700 2.0 4.0 150 500 175 500 3.5 150 250 350 500 1000 4.0 235 1.45 0.35 0.550 Unit % ns ns V/ns ps ns V/ns ps ps ps ps ns ps ps ps ps ps ms mV V V V
Notes: 8. All parameters specified with loaded outputs. 9. Duty cycle is measured at 1.5V when VDD = 3.3V. When VDD = 2.5V, duty cycle is measured at 1.25V. 10. POR starts when VDD reaches 1.5V. 11. All PULL-UPs must ramp at the same rate as VDD. 12. Determined as a fraction of 2*(Trp - Trn)/(Trp +Trn) Where Trp is a rising edge and Trn is an intersecting falling edge. 13. The test load is Rs = 33.2, Rp = 49.9 in test circuit.
Document #: 38-07040 Rev. *E
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CY28329
Definition and Application of VTTPWRGD# Signal
Vtt
VRM8.5
VTTPWRGD#
CPU
BSEL0
BSEL1
3.3V 3.3V
NPN
3.3V
VTTPWRGD#
CLOCK GENERATOR
S0
10K 10K
10K
GMCH
S1 10K
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CY28329
Switching Waveforms
Duty Cycle Timing (Single-Ended Output)
t1B t1A
Duty Cycle Timing (CPU Differential Output)
t1B t1A
All Outputs Rise/Fall Time
VDD t2 t3 0V
OUTPUT
CPU-CPU Clock Skew
Host_b Host Host_b Host t4
3V66-3V66 Clock Skew
3V66
3V66
t5 PCI-PCI Clock Skew
PCI
PCI t6
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CY28329
Switching Waveforms (continued)
3V66-PCI Clock Skew
3V66
PCI t7
CPU Clock Cycle-Cycle Jitter
t8A Host_b Host t8B
Cycle-Cycle Clock Jitter
t9A t9B
CLK
VDD and POR Timing
1.5V VDD
1.5V POR t10
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CY28329
VTTPWRGD# Timing Diagrams
GND VRM 5/12V PWR_GD VID [3:0] BSEL [1:0] VTTPWRGD FROM VRM
VCC CPU CORE VTTPWRGD VCC CLOCK GEN CLOCK STATE State 0 OFF CLOCK VCO OFF CLOCK OUTPUTS ON
0.2-0.3 ms Wait for Sample delay VTTPWRGD# BSELS
State 1
State 2
State 3 ON
Figure 2. CPU Power BEFORE Clock Power
GND VRM 5/12V PWRGD VID [3:0] BSEL [1:0] PWRGD FROM VRM PWRGD# FROM NPN
VCC CPU CORE VTTPWRGD VCC CLOCK GEN CLOCK STATE State 0 OFF CLOCK VCO OFF ON ON
0.2-0.3 ms delay Wait for VTTPWRGD# Sample BSELS
State 1
State 2
State 3
CLOCK OUTPUTS
Figure 3. CPU Power AFTER Clock Power
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CY28329
PD# Assertion
66BUFF PCI PCI_F (APIC) PD# CPU CPU# 3V66 66IN USB REF
UNDEF Power Down Rest of Generator
PD# Deassertion
<3 ms
66BUFF1/GMCH 66BUFF[0:2] PCI PCI_F (APIC) PD# CPU CPU# 3V66 66IN USB REF
10-30 s min. 100-200 s max.
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CY28329
Layout Example
+3.3V Supply FB
VDDQ3
10 F 0.005 F
C1 G
G G
G
1 2 3 4 5 6 7 8 9
10
V G
G
G V G
G
G
VDDQ3
1.0 - 4.7K
G
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
G V G
G V G
G V G
56 55 54 53 52 G 51 V 50 G 49 48 G 47 V 46 G 45 44 43 42 G 41 40 39 38 37 G 36 35 34 G 33 V 32 G 31 30 G 29
G
G
G
FB = Dale ILB1206 - 300 or 2TDKACB2012L-120 or 2 Murata BLM21B601S Ceramic Caps C1 = 10-22 F G = VIA to GND plane layer C2 = 0.005 F C5 = 0.1 F C6 = 10 F V =VIA to respective supply plane layer
Note: Each supply plane or strip should have a ferrite bead and capacitors
CY28329
VDDQ3 10
C5 G
G C6
G
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CY28329
Test Circuit
VDD_REF, VDD_PCI, VDD_3V66, VDD_CORE VDD_48 MHz, VDD_CPU 4, 9, 15, 20, 31, 36, 41, 47 1, 8, 14, 19,32,37, 46, 50 Rs CPU OUTPUTS PCI,3V66 Outputs 30 pF Note: Each supply pin must have an individual decoupling capacitor. Note: All capacitors must be placed as close to the pins as is physically possible. Rs Test Nodes Rp
Test Node 20 pF Test Node
Ref,USB Outputs
CY28329
Rp
Ordering Information
Ordering Code Standard CY28329PVC CY28329PVCT CY28329ZC CY28329ZCT Lead-free CY28329OXC CY28329OXCT CY28329ZXC CY28329ZXCT Package Type 56-Pin Small Shrunk Outline Package (SSOP) 56-Pin Small Shrunk Outline Package (SSOP) - Tape and Reel 56-Pin Thin Small Shrunk Outline Package (TSSOP) 56-Pin Thin Small Shrunk Outline Package (TSSOP) - Tape and Reel 56-Pin Small Shrunk Outline Package (SSOP) 56-Pin Small Shrunk Outline Package (SSOP) -Tape and Reel 56-Pin Thin Small Shrunk Outline Package (TSSOP) 56-Pin Thin Small Shrunk Outline Package (TSSOP) Operating Range Commercial Commercial Commercial Commercial Commercial Commercial Commercial Commercial
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CY28329
Package Diagrams
\
56-Lead Shrunk Small Outline Package O56
51-85062-*C
56-Lead Thin Shrunk Small Outline Package, Type II (6 mm x 12 mm) Z56
0.249[0.009]
28 1
DIMENSIONS IN MM[INCHES] MIN. MAX.
7.950[0.313] 8.255[0.325] 5.994[0.236] 6.198[0.244]
REFERENCE JEDEC MO-153 PACKAGE WEIGHT 0.42gms PART # Z5624 STANDARD PKG. ZZ5624 LEAD FREE PKG.
29
56
13.894[0.547] 14.097[0.555]
1.100[0.043] MAX.
GAUGE PLANE 0.25[0.010]
0.20[0.008]
0.851[0.033] 0.950[0.037] 0.500[0.020] BSC 0.051[0.002] 0.152[0.006] SEATING PLANE 0-8
0.508[0.020] 0.762[0.030]
0.170[0.006] 0.279[0.011]
0.100[0.003] 0.200[0.008]
51-85060-*C
Intel and Pentium are registered trademarks of Intel Corporation. All products and company names mentioned in this document may be the trademarks of their respective holders. Document #: 38-07040 Rev. *E Page 16 of 17
(c) Cypress Semiconductor Corporation, 2005. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.
CY28329
Document History Page
Document Title: CY28329 133-MHz Spread Spectrum Clock Synthesizer/Driver with Differential CPU Outputs Document Number: 38-07040 REV. ** *A *B ECN NO. 115133 122733 127128 Issue Date 04/26/02 12/14/02 06/13/03 Orig. of Change DSG RBI RGL Description of Change Changed from Spec number: 38-01147 to 38-07040 Preliminary to Final Added power-up requirements to operating conditions information. Added t10 timing AC specification. Added Notes 10 and 11. Added VDD to POR diagram. Added pull-up resistor to PD# in Layout example.Verified I2C default values Added "Use an external 1.0 to 4.7K pull-up resistor" to Pin 25 description. Changed Pin 25 description to "Use an external 1.0 K pull-up resistor". Updated Document History Page to reflect *C changes. Added Lead-free devices
*C *D *E
127899 128179 310457
06/26/03 06/27/03 See ECN
DMG LJN RGL
Document #: 38-07040 Rev. *E
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