Handler Interface; Digital I/O Connector; Digital Output Lines; Figure 11-6 Handler Interface Connections - Keithley 2500 User Manual

11-10 Limit Testing

Binning systems

The Model 2500 can be used with a component handler to perform binning operations on
DUT packages. With this system, you can test single-element devices such as a single
diode. Adding a scanner to the system allows binning operations on multiple-element
DUT packages. See

Handler interface

The Model 2500 is interfaced to a handler via the Digital I/O port as shown in
The I/O port has four lines for output signals and one line for input signals. The output
lines are used to send the test pass/fail signal(s) to the handler to perform the binning
operation.
Figure 11-6
Handler interface connections
Dig I/O

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 Model 2500. A custom cable using a standard female DB-9 connector is required for
connection to the Model 2500. See

Digital output lines

The four output lines output a specific bit pattern based on the pass/fail results of the vari-
ous limit tests. (See
used either as an end-of-test (EOT) or BUSY signal depending on the END OF TEST
mode. (See
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"Limit test programming example," page
Model 2500
Out 1
Out 2
Out 3
Out 4
Gnd
1 5
6
9
Input (SOT)
"Types of limits," page
"Configuring limit tests," page
Models 2500 and 2502 User's Manual
Line 1
Line 2
Line 3
Line 4 (EOT or BUSY)
Gnd
/OE
+5V
SOT Strobe Line
Section 12, "Digital I/O port,"
11-2). In the 3-bit output mode, Line 4 can be
11-16.)
11-21.
Figure 11-6.
Handler
for more information.