Questions tagged [tqfp]
For questions about the TQFP (thin quad flat pack) integrated circuit package. Consider using in conjunction with the "integrated-circuit" tag.
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Burning bootloader on atmega1284 tqfp
Is the process of burning a bootloader (JChristensen's mighty-1284 to be precise), on an Atmega1284 microcontroller same for both DIP (Atmega1284p) and tqfp (Atmega1284-au)?
While searching online ...
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In production, is there a significant difference between QFN or TQFP components other than space?
When producing a run of PCBs, does it matter if I choose QFN or TQFP components? Say, I want to have 1000 boards manufactured with an Atmel AVR that is available in QFN or TQFP packages. The QFN ...
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Any reason not to bend the pins on TQFP and VQFP packages
I have an FPGA with a VQFP package, and I need to bend some pins back and hand solder them to fine gauge wire. Is it likely that this will damage the device?
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Need Help... So Confused with this QFP32 SA663 Socket
I purchased an SA663 clone QFP32 Socket online, but to my extreme dismay, it doesn't work, or at least I haven't been able to get it to. Basically the original SA663 is a 1:1 pinout. But after trying ...
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Find first pin of a LQFP chip
I have bought some ATSAM4E8C chips in LQFP 100 package. The datasheet shows that the IC should have a dot indicating the first pin, but mine have two dots. One larger in the corner, and a smaller ...
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Solder mask for 0.5mm pitch TQFP
I'm using Atmel SAM chips and the data sheets don't have any mention of solder mask clearance for their TQFP packages. What would be a nominal pad/solder mask opening/cream size for a 0.5mm pitch ...
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TQFP vs QFP landpattern
I know these packages have different thickness, but I have a hard time to find a TQFP landpad spec. Is it using the same landpad as for QFP (reflow soldering)?
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Pickit 3 and PIC18F46J53
I have connected Pickit3 and the above TQFP PIC microcontroller on a PCB and connected the respective pins to it. I have checked for short circuits between pins and found none. What could be the ...
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Easiest way to solder connections to all the legs on a surface-mount chip?
Recently, I went through the process of soldering wires onto the legs of a TQFP chip (~0.8mm pitch) which has already been mounted on a PCB. This is a project where I am doing some modifications to ...
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how to manually solder exposed-pad QFP package (Altera 144 pins)
I need to manually solder an exposed-pad QFP Altera FPGA. This is crucial, since the pad is used for electrical purpose (not for thermal purpose)
I have tried the following but failed. I just put ...
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Minimum distance from TQFP to chip cap on PCB assembly?
I want to put decoupling caps (0603) as close as possible to TQFP-48-7x7. So PCB/assembly wise how close I can put them (pad to pad, component to component)?
Does the 'court yard' need to be exactly ...
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QFP on stripboard, without PCB?
Are there any tricks I can use to connect a QFP (or similar) package component to a stripboard (veroboard), without the hassle of setting up a personal PCB fabrication kit to make a breakout board?
I'...
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What is the difference between VQFP, HVQFP, TQFP & PQFP?
VSC7145XRU-31/C - this IC uses PQFP package
the replacement component for that TLK2201 uses HVQFP package
also TLK2541 uses TQFP
that's why i wanted to know whats the clear difference between ...
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Pad dimensions and land patterns for QFPs
I'm putting together a footprint for a 100-pin, 14x14mm TQFP, and I'm finding conflicting designs. The pitch and width of the pads are all basically the same, but the length and centering of the pads ...
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LQFP package vs. TQFP package?
In my PCB editor, both LQFP and TQFP have the same footprints, except the TQFP has shorter leads than the LQFP. Is that the only difference?
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