PA40Dx-44QF-34 Data Sheet
40 pin DIP socket/44 pin QFP plug
Supported Device/Footprints
Adapter Construction
The adapter is made up of 3 or 4 sub-assemblies. They
assemble via connectors making the adapter modular. This way
the sub-assemblies can be replaced easily.
These adapters accept 40 pin DIP devices and have a
removable 44 pin QFP solder-down plug. They allow DIP
devices, or emulators with DIP plugs, to be used during
development of QFP based products.
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.
The following DIP device footprints are converted to the
indicated QFP footprint.
The following chart lists the adapters described by this datasheet
and their subassemblies.
Zilog: Z86C34/ C35/ C36/ C44/ C45/ C46
Footprint: Same device 44QFP
Adapter
Test
Socket
Board
QFP
Plug
Other devices that require the same wiring and footprint would
also be supported.
PA40DZ-44QF-34
PA40DP-44QF-34
40-ADZ * PA51-DP-34Q PQF-44
none * PA51-DP-34Q PQF-44
This QFP plug will fit most 44 pin. 0.8mm pitch, QFP land
patterns. Usually the pads extend from the body past the tip of
the device leads. This plug will fit on pads that have a minimum
span of 10.0mm or less and a maximum span of 12.0mm or
more.
* The top board always has a 40 pin DIP production socket. The
optional test socket plugs into the production socket.
Test Socket
LSC #
Style
Mfgr/Pn
Inner pad span
Outer pad span
40ADZ
DIP ZIF
Aries 40-6554-11
10.0mm or less 12.0mm or more
Adapter Wiring
The QFP Plug’s leads are dimensioned as follows.
The following chart shows the connections from the DIP device
to the adapter’s QFP plug.
DIP
Socket
SIGNAL
QFP
Plug
QFP
Plug
SIGNAL
DIP
Socket
1
2
3
4
5
6
7
8
9
10
11
11
12
13
14
15
16
17
18
19
20
-
R/W
P25
P26
P27
P04
P05
P06
P14
P15
P07
Vcc
40
41
42
43
44
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
N/C
DS
-
Plug
PQF-44
Body
10.0 mm typ
Knee
9.6 mm typ
Tip
12.0 mm typ
Pitch
0.8 mm
40
39
38
37
36
35
34
33
32
31
31
30
29
28
27
26
25
24
23
22
21
P24
P23
P22
P21
P20
P03
P13
P12
GND
GND
P02
P11
P10
P01
P00
P30
P36
P37
P35
RESET
Adapter Dimensions
Vcc
P16
P17
XTAL2
XTAL1
P31
P32
P33
P34
AS
PA40DP-44QF-34
R/RL
Skip short notation (1, 12, 23, 34) (12-13), (34-35) using “header” pin
numbers.
PA40DZ-44QF-34
Logical Systems Corporation
PO Box 6184, Syracuse, NY 13217-6184 USA
Tel (315) 478-0722, FAX (315) 479-6753
PA40Dx-44QF-34 Data Sheet
Doc: 404434DQ.DOC
Rev 02/09/00
S Y S T E M S
Page 1 of 1
www.logicalsys.com, Email: info@logicalsys.com
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