User manual

12-10 Limit Testing 2400 Series SourceMeter
®
User’s Manual
Binning systems
NOTE The Model 2401 does not have handler interface. Therefore it cannot be
used with a component handler to perform binning operations.
The SourceMeter can be used with a component handler to perform binning oper-
ations on DUT packages. With this system, you can test single-element devices
(i.e., resistor). Adding a scanner to the system allows binning operations on multi-
ple-element DUT packages. See Multiple-element device binning.
Handler interface
The SourceMeter is interfaced to a handler via the Digital I/O port as shown in Fig-
ure 12-6. The I/O port has four lines for output signals (Out 1 through Out 4) as
well as input lines for start-of-test (SOT) and /OE (output enable) signals. The out-
put lines are used to send the limit test pass/fail signal(s) to the handler to perform
the binning operation.
Figure 12-6
Handler interface connections
Digital I/O connector
These digital I/O lines are available at the DB-9 Digital I/O connector on the rear
panel of the SourceMeter. A custom cable using a standard female DB-9 connec-
tor is required for connection to the SourceMeter. See Section 13, “Digital I/O
port,” for more information.
SourceMeter
Handler
Out 1
Out 2
Out 3
Out 4
Gnd
Dig I/O
1
6
5
9
+5V
Input (SOT)
Line 1
Line 2
Line 3
Line 4 (EOT or BUSY)
SOT Strobe Line
/OE
Gnd