CY28442ZXC

CY28442ZXC Datasheet


CY28442

Part Datasheet
CY28442ZXC CY28442ZXC CY28442ZXC (pdf)
Related Parts Information
CY28442ZXCT CY28442ZXCT CY28442ZXCT
PDF Datasheet Preview
ADVANCE INFORMATION

CY28442

Clock Generator for Alviso Chipset
• Compliant to CK410M
• Supports Intel Pentium-M CPU
• Selectable CPU frequencies
• Differential CPU clock pairs
• 100-MHz differential SRC clocks
• 96-MHz differential dot clock
• 48-MHz USB clocks
• SRC clocks independently stoppable through

CLKREQ#[A:B]
• 96/100 MHz Spreadable differential clock.
• 33-MHz PCI clock
• Low-voltage frequency select input
• I2C support with readback capabilities
• Ideal Lexmark Spread Spectrum profile for maximum
electromagnetic interference EMI reduction
• 3.3V power supply
• 56-pin TSSOP package

DOT96 USB_48
x2 / x3
x5/6

Block Diagram

XIN XOUT

PCI_STP# CPU_STP# CLKREQ[A:B]#

FS_[C:A]
14.318MHz Crystal

PLL Reference

PLL1

Divider

VTTPWR_GD#/PD

PLL2 96MSS

Divider

PLL4 FIXED

Divider

SDATA SCLK

I2C Logic

Pin Configuration

VDD_REF REF

IREF VDD_CPU CPUT CPUC VDD_CPU CPUT_ITP/SRCT7 CPUC_ITP/SRCC7

VDD_SRC SRCT[1:5] CPUC[1:5] VDD_PCI

PCI VDD_PCI

PCIF VDD_48MHz 96_100_SSCT 96_100_SSCC

VDD_48MHz DOT96T DOT96C

VDD_48 USB

VDD_REF 1 VSS_REF 2

PCI3 3 PCI4 4 PCI5 5 VSS_PCI 6 VDD_PCI 7 ITP_EN/PCIF0 8 **96_100_SEL/PCIF1 9

VTTPWRGD#/PD 10 VDD_48 11

FS_A/48M_0 12 VSS_48 13 DOT96T 14 DOT96C 15

FS_B/TESTMODE 16 96_100_SSCT 17 96_100_SSCC 18

SRCT1 19 SRCC1 20 VDD_SRC 21 SRCT2 22 SRCC2 23 SRCT3 24

SRCC3 25

SRCT4_SATA 26
Ordering Information

Part Number Lead-free CY28442ZXC CY28442ZXCT

Package Type
56-pin TSSOP 56-pin TSSOP Tape and Reel

Product Flow

Commercial, 0° to 85°C Commercial, 0° to 85°C

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ADVANCE INFORMATION

CY28442

Package Diagrams
56-Lead Thin Shrunk Small Outline Package, Type II 6 mm x 12 mm Z56

DIMENSIONS IN MM[INCHES] MIN.

REFERENCE JEDEC MO-153 PACKAGE WEIGHT 0.42gms

PART # Z5624 STANDARD PKG. ZZ5624 LEAD FREE PKG.

MAX.

MAX.

GAUGE PLANE

SEATING PLANE
0° -8°
51-85060-*C

Intel and Pentium are registered trademarks of Intel Corporation. All product and company names mentioned in this document are the trademarks of their respective holders. Purchase of I2C components from Cypress or one of its sublicensed Associated Companies conveys a license under the Philips I2C Patent Rights to use these components in an I2C system, provided that the system conforms to the I2C Standard Specification as defined by Philips.

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ADVANCE INFORMATION

Document History Page

Document Title CY28442 Clock Generator for Alviso Chipset Document Number 38-07680

Orig. of ECN NO. Issue Date Change
237648 See ECN RGL New Data Sheet

Description of Change

CY28442

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Datasheet ID: CY28442ZXC 507733