CY7C65640A-LTXC Cypress Semiconductor Corp, CY7C65640A-LTXC Datasheet - Page 21

• Manufacturer Part Number: CY7C65640A-LTXC
• Description: IC USB HUB CTLR HS 56VQFN
• Manufacturer: Cypress Semiconductor Corp
• Series: TetraHub™r
• Type: USB Interface ICr

Specifications of CY7C65640A-LTXC

• Package / Case: 56-VQFN Exposed Pad, 56-HVQFN, 56-SQFN, 56-DHVQFN
• Controller Type: USB Hub
• Interface: SPI Serial
• Voltage - Supply: 3.15 V ~ 3.45 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Current - Supply: 260mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Number Of Bits: 9
• Operating Temperature Range: 0 C to + 70 C
• Propagation Delay Time Ns: 50 ns
• Resistance: 45 Ohms
• Supply Current: 460 mA
• Operating Supply Voltage: 3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: CY4602 - KIT USB 4-PORT HUB REF DESIGN
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 428-2931

Figure 10
Figure 10. Plot of the Solder Mask (White Area)
Document #: 38-08019 Rev. *J
is a plot of the solder mask pattern and
Via hole for thermally connecting the
QFN to the circuit board ground plane.
Figure 9. Cross section of the Area Underneath the QFN Package
PCB Material
Cu Fill
Figure 11
Solder Mask
displays an X-Ray image of the assembly (darker areas indicate solder).
0.013” dia
0.017” dia
Figure 11. X-Ray Image of the Assembly
This figure only shows the top three layers of the
circuit board: Top Solder, PCB Dielectric, and
the Ground Plane.
Cu Fill
PCB Material
CY7C65640A
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