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PRELIMINARY
CY7C656x
x
Document #: 38-08037 Rev. *D Page 22 of 23
© 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 indemnif
ies Cypress against all charges.
16.0 Ordering Information
17.0 Package Diagrams
The CY7C656xx is available in a space-saving 56-pin QFN
(8 × 8 mm).
Windows is a registered trademark of Microsoft Corporation. TetraHub and EZ-USB HX2LP are trademarks of Cypress Semicon-
ductor Corporation. All product and company names mentioned in this document are trademarks of their respective holders.
Ordering Code Package Type
CY7C65640B-56LFXC 56-pin QFN Mult-TT
CY7C65630-56LFXC 56-pin QFN Single-TT
CY7C65620-56LFXC 56-pin QFN 2-Port Single-TT
CY46XX CY7C656xx USB 2.0 4 port Hub Reference Design Kit
0.80[0.031]
7.70[0.303]
7.90[0.311]
A
C
1.00[0.039] MAX.
N
SEATING
PLANE
N
2
0.18[0.007]
0.50[0.020]
1
1
0.08[0.003]
0.50[0.020]
0.05[0.002] MAX.
2
(4X)
C
0.24[0.009]
0.20[0.008] REF.
0.80[0.031] MAX.
PIN1 ID
0°-12°
6.45[0.254]
8.10[0.319]
7.80[0.307]
6.55[0.258]
0.45[0.018]
0.20[0.008] R.
8.10[0.319]
7.90[0.311]
7.80[0.307]
7.70[0.303]
DIA.
0.28[0.011]
0.30[0.012]
6.55[0.258]
6.45[0.254]
0.60[0.024]
TOP VIEW
BOTTOM VIEW
SIDE VIEW
E-PAD
(PAD SIZE VARY
BY DEVICE TYPE)
51-85144-*D
56-Lead QFN 8 x 8 MM LF56A
Dimensions in mm
E-Pad size 6.0 x 6.0 mm typ