Keithley SourceMeter 2400, User Manual, Page: 298 / 594

2400 Series SourceMeter
®
User’s Manual Limit Testing 12-11
Binning systems
The SourceMeter can be used with a component handler to perform binning operations on
DUT packages. With this system, you can test single-element devices (i.e., resistor). Add-
ing a scanner to the system allows binning operations on multiple-element DUT packages.
See
“Limit test programming example,” page 12-24 .
Handler interface
The SourceMeter is interfaced to a handler via the Digital I/O port as shown in Figure
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 /INT (safety interlock) signals. The output 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 connector 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
/INT
Gnd
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