cy28416 Cypress Semiconductor Corporation., cy28416 Datasheet

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cy28416

Manufacturer Part Number
cy28416
Description
Next Generation Ftg For Intel Architecture
Manufacturer
Cypress Semiconductor Corporation.
Datasheet

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Cypress Semiconductor Corporation
Document #: 38-07657 Rev. *C
Features
• Supports Intel Pentium
• Selectable CPU Frequencies
• Two Differential CPU Clock Pairs
• Four 100-MHz Differential SRC Clock Pairs
• One CPU/SRC Selectable Differential Clock Pair
• One 96-MHz Differential Dot Clock Support
• Two 48-MHz Clocks
• Four 33-MHz PCI Clocks
Block Diagram
VTT_PWRGD#
FS_[C:A]
SDATA
XOUT
SCLK
IREF
XIN
PD
PLL1
PLL2
Logic
XTAL
OSC
I
2
C
Network
Divider
®
4-Type CPUs
PLL Ref Freq
Next Generation FTG for Intel
3901 North First Street
DOT96T
DOT96C
VDD_REF
REF
VDD_CPU
VDD_SRC
VDD_PCI
VDD_PCIF
VDD_48MHz
48MHz0
CPUT[0:1], CPUC[0:1],
CPU2/SRC4
SRCT[0:3], SRCC[0:3]
PCI[0:3]
PCIF[0:1]
48MHz1
• Two 33-MHz PCI Free Running Clocks
• Low Voltage Frequency Select Input
• I
• Ideal Lexmark Spread Spectrum Profile for Maximum
• 3.3V Power Supply
• 48-pin SSOP Package
x2 / x3
CPU
EMI Reduction
2
C Support Byte/Word/Block Read/Write Capabilities
Pin Configuration
PCIF0/TESTSEL
48MHz0/FS_B
PCIF1/ITPEN
REF0/FS_C
REF1/FS_A
VDD_REF
VSS_REF
VDD_PCI
VDD_PCI
VSS_PCI
VSS_PCI
DOT96C
DOT96T
VDD_48
48MHz1
VSS_48
x4 / x5
SDATA
SRC
XOUT
SCLK
PCI0
PCI1
PCI2
PCI3
XIN
San Jose
10
11
1
2
3
4
5
6
7
8
9
48-PIN SSOP
12
13
14
15
16
17
18
19
20
21
22
23
24
PCI
x 6
,
CA 95134
DOT
®
x 1
Revised July 14, 2005
Architecture
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
USB
VSS_CPU
CPUT0
CPUC0
VDD_CPU
CPUT1
CPUC1
IREF
VSSA
VDDA
CPUT2_ITP/SRCT4
CPUC2_ITP/SRCC4
VDD_SRC
VSS_SRC
SRCT3
SRCC3
VDD_SRC
SRCC2_SATA
SRCT2_SATA
SRCC1
SRCT1
VSS_SRC
SRCC0
SRCT0
VTT_PWRGD#/PD
x 2
408-943-2600
CY28416
REF
x 2
[+] Feedback

Related parts for cy28416

cy28416 Summary of contents

Page 1

... VDD_48MHz PCI3 DOT96T VSS_PCI DOT96C VDD_PCI 48MHz0 PCIF0/TESTSEL 48MHz1 PCIF1/ITPEN VDD_48 48MHz0/FS_B 48MHz1 VSS_48 DOT96T DOT96C • 3901 North First Street • San Jose CY28416 ® Architecture PCI DOT USB REF VSS_CPU 2 47 CPUT0 3 46 CPUC0 ...

Page 2

... LVTTL Input. This pin is a level-sensitive strobe used to latch the FS_A, FS_B, FS_C/TEST_SEL, and PCIF0/ITP_EN Inputs. After asserting VTT_PWRGD# (active LOW), this pin becomes a realtime input for asserting power-down (active HIGH) I 14.318-MHz Crystal Input O 14.318-MHz Crystal Output CY28416 Description Page [+] Feedback ...

Page 3

... Command Code – 8 Bits 19 Acknowledge from slave 20 Repeat start 27:21 Slave address – 7 bits 28 Read = 1 29 Acknowledge from slave 37:30 Byte Count from slave – 8 bits 38 Acknowledge CY28416 DOT96 USB 96 MHz 48 MHz 96 MHz 48 MHz 96 MHz 48 MHz 96 MHz 48 MHz 96 MHz 48 MHz Description Page ...

Page 4

... Stop Description CPU[T/C]2_ITP/SRC[T/C]4 Output Enable 0 = Disable (Hi-Z Enable RESERVED, Set = 1 RESERVED, Set = 1 SRC[T/C]3 Output Enable 0 = Disable (Hi-Z Enable SRC[T/C]2_SATA Output Enable 0 = Disable (Hi-Z Enable SRC[T/C]1 Output Enable 0 = Disable (Hi-Z Enable SRC[T/C]0 Output Enable 0 = Disable (Hi-Z Enable RESERVED, Set = 1 CY28416 Description Description Page [+] Feedback ...

Page 5

... Allow control of SRC2_SATA with assertion of SW PCI_STP Free running Stopped with PCI_STP# Allow control of SRC[T/C]1 with assertion of SW PCI_STP Free running Stopped with PCI_STP# Allow control of SRC[T/C]1 with assertion of SW PCI_STP Free running Stopped with PCI_STP# RESERVED, Set = 0 CY28416 Page [+] Feedback ...

Page 6

... FS_C. Reflects the value of the FS_C pin sampled on power- FS_C was low during VTT_PWRGD# assertion FS_B. Reflects the value of the FS_B pin sampled on power- FS_B was low during VTT_PWRGD# assertion FS_A. Reflects the value of the FS_A pin sampled on power- FS_A was low during VTT_PWRGD# assertion CY28416 Page [+] Feedback ...

Page 7

... Crystal Recommendations The CY28416 requires a Parallel Resonance Crystal. Substituting a series resonance crystal will cause the CY28416 to operate at the wrong frequency and violate the ppm specification. For most applications there is a 300-ppm frequency shift between series and parallel crystals due to incorrect loading. ...

Page 8

... Figure example showing the relationship of clocks coming up. Unfortunately, we can not show all possible combinations, designers need to insure that from the first active clock output to the last takes no more than two full PCI clock cycles. CY28416 Page [+] Feedback ...

Page 9

... Figure 5. VTT_PWRGD# Timing Diagram Figure 5. VTT_PWRGD# Timing Diagram TT_P Low D elay >0. orm D_A = off O peration V TT_P toggle CY28416 Device is not affected, VTT_PW RGD# is ignored State Sam ple Inputs straps W ait for <1. nable O utputs ...

Page 10

... SDATA, SCLK Except internal pull-up resistors, 0 < Except internal pull-down resistors, 0 < – max load and freq per Table 6 and Figure 7 PD asserted, Outputs driven PD asserted, Outputs Tri-stated CY28416 Min. Max. Unit –0.5 4.6 V –0.5 4.6 V –0 0.5 VDC DD – ...

Page 11

... Measured at crossing point V OX Measured at crossing point Measured at crossing point V OX Measured at crossing point V OX Measured at crossing point V OX Measured from V = 0.175 0.525V OL OH Determined as a fraction of 2*(T – T )/( CY28416 Min. Max. Unit 47.5 52.5 % 69.841 71.0 ns – 10.0 ns – 500 ps – 300 ppm ...

Page 12

... Determined as a fraction of 2*(T – T )/( Math averages Figure 7 Math averages Figure 7 See Figure 7. Measure SE Measurement at 1.5V Measurement at 1.5V Measurement at 2.4V Measurement at 0.4V Measured between 0.4V and 2.4V Measurement at 1.5V Measurement at 1.5V Measurement at 1.5V Measured between 0.4V and 2.4V CY28416 Min. Max. Unit – 125 ps 660 850 mv –150 – mv 220 550 mV – V ...

Page 13

... Ω Ω Figure 7. 0.7V Load Configuration Output under Test tDC 3. Package Type CY28416 Min. Max. Unit – 1000 ps – 1.8 ms 10.0 – – ns ...

Page 14

... 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 system, provided that the system conforms to the I CY28416 51-85061-* Standard Specification ...

Page 15

... Document History Page Document Title: CY28416 Next Generation FTG for Intel Document #: 38-07657 Rev. *C REV. ECN NO. Issue Date ** 224420 See ECN RGL/TUJ New Data Sheet *A 318277 See ECN *B 375236 See ECN *C 385998 See ECN Document #: 38-07657 Rev. *C ® Architecture Orig. of Change ...

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