PAxxQS-OT Data Sheet
20-24 pin QSOP socket/20-24 pin DIP 0.6” plug
Supported Device/Footprints
Using this adapter QSOP packaged devices can be programmed
on programmers with DIP sockets in the device’s DIP footprint.
Cypress Semiconductor offers programmable logic device in the
20 and 24 pin QSOP packages. Some of the devices are 16L8,
16R4, 16R6, 16R8, 16V8 and 22V10.
This adapter accepts packages with the dimensions listed below:
Test Socket
Wells Part #: 656-4242011 or 656-4242211
LSC Part #: 20QSH-W or 24QSH-W
The 24 pin socket is depopulated to 20 pins to fit smaller
devices. The part numbers are listed in the following chart.
Circuit Board
This is a
24QS-OT
board that is depopulated for the 20 pin
adapter. The various part numbers for this board are listed in the
following chart.
Adapter Construction
The adapter is made up of 2 sub-assemblies. They assemble via
connectors making the adapter modular. This way the sub-
assemblies can be replaced when they wear out.
When disassembling the adapter take care not to bend the pins.
When reassembling the adapter note the pin 1 indicators to align
the parts correctly.
Body
3.9 mm
(0.154”)
typical
Knee
4.7 mm
(0.185”)
typical
Tip
6.0 mm
(0.236”)
typical
Pitch
0.025"
Length
8.65 mm
(0.341”)
typical
Adapter Parts & Part Numbers
The following chart shows the various socket and board part
numbers that make us these adapters.
Adapter
PA20QS-OT
PA24QS-OT
Socket
20QSH-W
24QSH-W
Board
24QS-OT-20
24QS-OT
Some of the package codes that fit this adapter are:
Manufacturer
20QSOP
24QSOP
JEDEC
MO-137AD
MO-137AE
Cypress Semi.
Q5
Q13
Quality Semi.
PSS-20A
PSS-24A
Pericom
Q20
Q24
Adapter Wiring
Adapter Dimensions
The adapter is wired 1-1. Pin 1 of the QSOP device connects to
pin 1 of the DIP plug, pin 2 to pin 2, and so on around the
adapter.
The PA24QS-OT is shown
Logical Systems Corporation
PO Box 6184, Syracuse, NY 13217-6184 USA
Tel (315) 478-0722, FAX (315) 479-6753
S Y S T E M S
www.logicalsys.com, Email: info@logicalsys.com
PAxxQS-OT Data Sheet
Doc: 24QS-OT.DOC
Rev 1/6/99
Page 1 of 1