EIA Standard Board Layout of Soldered Pad for QFP Devices and QFP Surface Mount Socket Figure 1 • Board Layout of Solder Pad Dimension Table 1 contains the board layout soldered pad dimensions for Microsemi Quad Flat Packs only. If you are using surface mount sockets for prototyping, see Table 2 for layout dimensions. Table 1 • QFP Package Layout Dimensions Dim. PQ100 PQ144 PQ160 PQ160 PQ/ PQ/ VQ/ 3.2 mm 3.9 mm RQ 208 RQ 240 VQ 80 TQ 100 VQ 128 VQ 176 TQ 64 TQ 144 TQ 176 Md 20.4 28.4 28.4 29.2 28.2 32.2 13.8 13.8 13.8 19.8 10.1 19.8 23.8 Me 14.4 28.4 28.4 29.2 28.2 32.2 13.8 13.8 13.8 19.8 10.1 19.8 23.8 e 0.65 0.65 0.65 0.65 0.5 0.5 0.65 0.5 0.4 0.4 0.5 0.5 0.5 0.3- 0.3- 0.4 0.4 0.30.4 1.6 1.6 1.6 b2 I2 0.30-0.5 0.30-0.5 0.30-0.5 0.30-0.5 0.3-0.4 1.8 1.8 1.8 1.8 1.6 0.3-0.4 0.3-0.5 0.3-0.4 0.25- 0.250.30 0.30 1.6 1.8 1.6 1.6 1.6 Note: Dimension = millimeters May 2012 © 2012 Microsemi Corporation 1 Table 2 contains board layout soldered pad dimensions to be used if you are using surface mount sockets for prototyping and Microsemi Quad Flat Packs for production. These dimensions will accept both surface mount sockets and actual QFP packages. Refer to Figure 1 for alignment pin location layout and overall dimensions. However, it is recommended that different solder mask openings be used for prototype sockets and production QFP packages. Table 2 • Combined QFP Package and Socket Layout Dimensions Dim. PQ100 PQ144 PQ160 3.2 mm PQ160 3.9 mm PQ/ PQ/ RQ 208 RQ 240 VQ 80 VQ/ TQ 100 TQ 64 TQ 144 TQ 176 Md 20.4 28.4 28.4 29.2 28.2 32.2 13.8 13.8 10.1 19.8 23.8 Me 14.4 28.4 28.4 29.2 28.2 32.2 13.8 13.8 10.1 19.8 23.8 Zd 26.8 35.2 35.2 35.2 32.1 36.1 17.2 17.1 13.5 23.3 27.3 Ze 20.8 35.2 35.2 35.2 32.1 36.1 17.2 17.1 13.5 23.3 27.3 e 0.65 0.65 0.65 0.65 0.5 0.5 0.65 0.5 0.5 0.5 0.5 0.30-0.5 0.30-0.5 0.3-0.4 0.3-0.4 0.3-0.5 0.3-0.4 b2 0.30-0.5 0.30-0.5 Socket SYSYSYSYSYSYSYSYPart PQ100-1 PQ144-1 PQ160-1 PQ160-1 PQ208-2 PQ240 VQ80-2 VQ100-1 Number 0.3-0.4 0.3-0.4 0.3-0.4 SYTQ64 SYSYTQ144 TQ176 Note: 1. If sockets other than those specified in Table 2 are used, make sure to check the socket drawing before finalizing the mount pad layout. 2. For positioning pin holes dimension, refer to www.microsemi.com/soc/documents/MechDrwngSocket.pdf. each socket drawing at: 3. Dimension = millimeters Table 3 contains board layout soldered pad dimensions to be used if you are using a prototype socket and a packaged device. It is recommended that different solder mask openings be used for prototype sockets and production QFP packages. Table 3 • Combined CQ208, QFP208 and Prototype Socket/ Combined CQ256 and CQ256 – FG484 Adapter Socket/Combined CQ352 and CQ352 – FG896 Adapter Socket PQ/RQ208/CQ2081 Dim. CQ2561/CQ256-FG484 adapter socket CQ3521/CQ352-FG896 adapter socket1 Md 28.2 40.5 51.50 Me 28.2 40.5 51.50 Zd 35.1 42.5 54.50 Ze 35.1 42.5 54.50 e 0.5 0.5 0.5 b2 0.3-0.4 0.3-0.4 0.3-0.4 Socket Part Number SY-PQ208-2 1). SI-SX72-ACQ256SFG484 1). SK-AX1000-CQ352RTFG896 2). SI-SX32-ACQ256SFG484 2). SK-AX2000-CQ352RTFG896 Note: 1. Md, Me, Zd, and Ze dimensions are based on trim and form data from Fancort Industries Inc. If you are using trim and form from another vendor, Md, Me, Zd,and Ze could be different. It is for PCB layout reference only. 2. Dimension = millimeters 2 3 Microsemi Corporation (NASDAQ: MSCC) offers a comprehensive portfolio of semiconductor solutions for: aerospace, defense and security; enterprise and communications; and industrial and alternative energy markets. Products include high-performance, high-reliability analog and RF devices, mixed signal and RF integrated circuits, customizable SoCs, FPGAs, and complete subsystems. Microsemi is headquartered in Aliso Viejo, Calif. Learn more at www.microsemi.com. Microsemi Corporate Headquarters One Enterprise, Aliso Viejo CA 92656 USA Within the USA: +1 (949) 380-6100 Sales: +1 (949) 380-6136 Fax: +1 (949) 215-4996 © 2012 Microsemi Corporation. All rights reserved. Microsemi and the Microsemi logo are trademarks of Microsemi Corporation. All other trademarks and service marks are the property of their respective owners. 55900010-4/05.12