3980xpi Users Manual - Data I/O Corporation

Inserting Devices in a PPI Adapter
TSOP Devices
Setting Up
PPI adapters accept a variety of device package types and pin configurations.
The following figures show common device packages and the proper device
orientation in the adapter. An icon on each adapter indicates proper device
orientation.
TSOP (Thin Small Outline Package) devices have two different pinouts:
� Standard pinout—the icon represents pin 1 with a circle in the upper-left
corner of the device.
� Reverse pinout—the icon represents pin 1 with a triangle in the upper-left
corner of the device.
To install a TSOP device in a PPI Base, follow the steps below and refer to the
illustration.
1. Press down on the outer edges of the socket.
2. While holding the socket edges down, drop the device into the socket.
3. Release the socket edges. The device should be secured.
Figure 2-16. Inserting a TSOP Device in a PPI Base
TSOP
SOCKET
PIN 1
PIN 1 OF SOCKET
STANDARD PINOUT ICON
DEVICE
REVERSE PINOUT ICON
To remove a device, press the socket edges down and lift it out.
3980xpi/3980/3900/2900 User Manual 2-29
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