
CYRF6936
Document #: 38-16015 Rev. *G
Page 38 of 40
Cypress Semiconductor Corporation, 2007. 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.
Package Description
Figure 13. 40-lead Pb-Free QFN 6 x 6 MM (Subcon Punch Type with 2.8 x 2.8 EPAD) LY40
The recommended dimension of the PCB pad size for the E-PAD underneath the QFN is 3.5 mm × 3.5 mm (width x length).
This document is subject to change, and may be found to contain errors of omission or changes in parameters. For feedback or
technical support regarding Cypress WirelessUSB products, contact Cypress at www.cypress.com. WirelessUSB, PSoC, and
enCoRe are trademarks of Cypress Semiconductor. All product and company names mentioned in this document are the trade-
marks of their respective holders.
2.8
2.8
3. PACKAGE WEIGHT: 0.086g
4. ALL DIMENSIONS ARE IN MM [MIN/MAX]
5. PACKAGE CODE
1. HATCH IS SOLDERABLE EXPOSED AREA
2. REFERENCE JEDEC#: MO-220
PB-FREE
STANDARD
DESCRIPTION
LF40
PART #
LY40
NOTES:
0.60[0.024]
5.70[0.224]
5.80[0.228]
5.90[0.232]
6.10[0.240]
A
C
1.00[0.039] MAX.
N
SEATING
N
2
0.18[0.007]
0.28[0.011]
0.50[0.020]
1
1
2
0.08[0.003]
0.50[0.020]
0.05[0.002] MAX.
(4X)
C
0.24[0.009]
0.60[0.024]
0.20[0.008] REF.
0.80[0.031] MAX.
PIN1 ID
0.20[0.008] R.
0°-12°
4.45[0.175]
4.55[0.179]
0.45[0.018]
DIA.
0.30[0.012]
5
5
5
6
4
4
TOP VIEW
BOTTOM VIEW
SIDE VIEW
PAD
EXPOSED
SOLDERABLE
51-85190-*A
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