Dataman 48XP - Manual (Page 21)

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This option is used to select a new active device. It is important
to select the correct device, as the algorithms used to program
devices are device-specific. The following screen will appear:
Figure 4.1 Screen for selecting Change Device
Special note in device package and its selection
In the above screen, you can find both AT89C51 and
AT89C51*44 selections, the AT89C51 means this is a 40 pin
DIP chip, no adapter is required and 89C51*44 means the chip
is 44 pin PLCC or QFP/TQFP, adaptor required. After selecting
the 89C51*44, at the bottom of the software screen will be
displayed chip information and the adapter requirement. In this
example, it shows SDP-UNIV-44 as the recommend adapter, it
means for a 44 pin PLCC chip, you need the 44 pin PLCC
universal adapter, if your chip is 44 QFP or TQFP, you will
need a 44pin QFP (SDP-UNIV-44TQ) or a 44pin TQFP
(SDP-UNIV-44TQ) adapter.
If you have a 3
rd
party 44 pin PLCC adapter that swaps the 44