Input/Output Signal Pin Layout

Pin number

Signal name

Input/ Output

Description

1

/BIN1

Output

These signals indicate the result of sorting. When a DUT is sorted into a bin, the corresponding signal (one of pins 1 through 11 and 19 through 21) changes to the Low level for a DUT that does not fall within the Rdc limit or cannot be measured (overload).

2

/BIN2

3

/BIN3

4

/BIN4

5

/BIN5

6

/BIN6

7

/BIN7

8

/BIN8

9

/BIN9

10

/OUT_OF_GOOD_BINS

11

/BIN10

12, 13

EXT_TRIG

Input

An external trigger signal. Available when the trigger mode is set to Ext (external trigger source). The instrument is triggered when the pulse reaches a rising/falling*1 edge.

14, 15

EXT_DCV

External DC voltage. Supplies voltage necessary for driving input signals. The pin accepts input voltage within the range from +5 V to +24 V.

16, 17, 18

+5 V

Output

Internal DC voltage. Maximum current is 500 mA.

19

/BIN11

These signals indicate the result of sorting. For more information, refer to the description of pins 1 through 11.

20

/BIN12

21

/BIN13

22

/READY_FOR_TRIG

The /READY_FOR_TRIG signal changes to the Low level when the instrument can be triggered. When the handler receives this signal, it can input an external trigger signal to the instrument.

23

/RDC_OUT_OF_RANGE

The /RDC_OUT_OF_RANGE signal changes to the Low level when the result of Rdc measurement does not fall within the specified limit range.

24

/OVLD

The /OVLD signal changes to the Low level when analog measurement cannot be performed (overload).

25

/KEY_LOCK

Input

Key lock signal. Changing this signal to the Low level locks the E4982A's front panel (keys and rotary knobs), keyboard and mouse.

26

(Reserved).

-

Currently not in use. Leave this pin unconnected.

27, 28

EXT_DCT

Input

External DC voltage. For more information, refer to the description of pins 14 and 15.

29

/ALARM

Output

The /ALARM signal changes to the Low level when an alarm condition is detected; for example, when the instrument does not satisfy a self-test item, or a particular circuit malfunction.

30

/INDEX

The /INDEX signal changes to the Low level when analog measurement is complete. When the handler receives the signal, it assumes that it is ready to connect the next DUT. However, no measurement data is available until the /EOM signal is received.

31

/EOM

The /EOM signal changes to the Low level when the instrument is ready to return measurement data and sort results after performing one complete cycle of measurement.

32, 33, 34, 35, 36

COM

-

Common for output signal pull-up voltage.