The devices currently widely used in integrated circuit package testing are controlled by computer software and communicate with hardware devices through interface buses, which can replace most of the labor of testers, also known as automated test systems (ATE). The working principle is: using the test software to write the test program of the test chip in the computer, the process of writing the test program is to realize the scheduling of the test system hardware resources by using the programming language, and applying the test pattern to the pins of the tested integrated circuit; Using the test software to execute the test program, the process requires the computer to communicate with the test system, call the drive function of the test system hardware circuit, and send the control command to the corresponding port of the test hardware via the computer's I/O interface; the tester hardware interface is translated. After the code circuit is decoded, the hardware action is driven to realize the established test function; the data result of the test is returned by the I/O interface of the computer; the computer analyzes and processes the result data, discriminates according to certain standards, and displays and controls the test result. The machine selects the device under test.
PCI bus signal definition
The signals of the PCI bus mainly include a PCI bus signal, an E2PROM interface signal, and a local bus signal. The circuit connection diagram of the main signal is shown in the figure.
E2PROM control signal
The configuration information of the PCI bus interface chip needs to be stored through the E2PROM and loaded when there is no reset. The signal lines EECS, EESK, EEDI and EEDO of PCI9030 are specially used for E2PROM connection. The E2PROM which is not selected for use is NM93CS66L. The chip has a low-level serial memory of 4 KB capacity and performs re-processing on the chip PCI9030. The storage information is loaded during operation, thereby enabling the PCI interface card to implement the plug and play function. The circuit connection between PCI9030 and NM93CS66L is shown in the figure.
The PCI interface chip can be combined with the FPGA to realize the simplified design of the PCI interface circuit and shorten the development cycle. The SDK software development kit can easily complete the configuration and debugging of the PCI chip, and use the VC6.0 software development tool in the Windows XP operating system. Loading the API library in the SDK enables the design of PCI drivers for integrated circuit testing. Through the interface circuit, the function of using the PC software to control the hardware circuit to complete the IC test is realized.
1.0mm (.039″) Pitch Pin Headers
Overview
Antenk offers a variety of high quality and competitively priced 1.0mm pitch single, dual, three, quad row pin (male) headers used in many board-to-board PCB connections, fitting small-sized, densely-packed devices.
This low-profile component is made from high-temperature thermoplastic and is offered with several means of connections and mounting styles such as through-hole (THM) or surface mount (SMT) and can be in vertical (straight), elevated or at a right angle configuration/orientation dissipating current of about 1.0 A or less.
The pin (male) header is generally mated with receptacle or stackable header connectors (female sockets). This types of pin headers are suitable for PCB board to board connection or for signal transmission application.
Applications of 1.0mm Pitch Pin Headers
Its small size is most suitable for PCB connections of small equipment and devices such as WiFi equipment, gaming consoles, measurement instruments, and other equipment in need of a special interface to become interconnected
Mount Type: Through-hole vs Surface Mount
At one side of this pin header is a series of pins which can either be mounted and soldered directly onto the surface of the PCB (SMT) or placed into drilled holes on the PCB (THM).
Through-Hole (Poke-In)
Best used for high-reliability products that require stronger connections between layers.
Aerospace and military products are most likely to require this type of mounting as these products experience extreme accelerations, collisions, or high temperatures.
Useful in test and prototyping applications that sometimes require manual adjustments and replacements.
1.0mm vertical single row header, 1.0mm vertical dual row header, 1.0mm Elevated single row pin header, 1.0mm Elevated dual row pin Header, 1.0mm Right-angle single row header and 1.0mm Right-angle dual row header are some examples of Antenk products with through-hole mount type.
Surface-Mount
The most common electronic hardware requirements are SMT.
Essential in PCB design and manufacturing, having improved the quality and performance of PCBs overall.
Cost of processing and handling is reduced.
SMT components can be mounted on both side of the board.
Ability to fit a high number of small components on a PCB has allowed for much denser, higher performing, and smaller PCBs.
1.0mm Right-angle Dual Row pin header, 1.0mm SMT Single row pin header, 1.0mm SMT Dual row pin header and 1.0mm Elevated Dual Row Pin Header are Antenk`s SMT pin headers.
Soldering Temperature for 1.0mm Pitch Pin Headers
Soldering SMT pin header can be done at a maximum peak temperature of 260°C for maximum 60 seconds.
Pin-Type: Vertical (Straight) and Right-Angle
1.0mm pitch headers may be further classified into pin orientation as well, such as vertical or straight male header or right-angle male header.
Vertical or Straight Pin (Male) Header Orientation
One side of the series of pins is connected to PCB board in which the pins can be at a right-angle to the PCB surface (usually called "straight" or [vertical") or.
Right-Angle Pin (Male) Header Orientation
Parallel to the board's surface (referred to as "right-angle" pins).
Each of these pin-types have different applications that fit with their specific configuration.
PCB Connector Stacking
Elevated Pin Header Orientation
Elevated pins aka Stacked Pins or Mezzanine are simply stacked pin headers providing an exact distance requirement between PCBs that optimizes electrical reliability and performance between PCB boards.
Profile Above PCB
This type of configuration is the most common way of connecting board-to-board by a connector. First, the stacking height is calculated from one board to another and measured from the printed circuit board face to its highest insulator point above the PCB.
Single, Dual or Multiple Number of Rows
For a 1.0mm straight or vertical male pin header, the standard number of rows that Antenk offers ranges from 1 to 2 rows. However, customization can be available if 3 ,4 or n number of rows is needed by the customer. Also, the number of contacts for the single row is about 2-50 pins while for dual row, the number contacts may vary from 4-100 pins.
Pin Material
The pins of the connector have been designed with copper alloy. With customer`s demand the pins can be made gold plated.
Breakaway design
The pin headers are also equipped with a breakaway design making them fully compatible with their female receptacles.
Custom 1.0mm Pitch Pin Headers
Customizable 1.0 mm pitch pin headers are also available, making your manufacturing process way faster as the pins are already inserted in the headers, insulator height is made at the right size and the accurate pin length you require is followed.
Parts are made using semi-automated manufacturing processes that ensure both precision and delicacy in handling the headers before packaging on tape and reel.
The tape and reel carrier strip ensures that the headers are packaged within accurately sized cavities for its height, width and depth, securing the headers from the environment and maintaining consistent position during transportation.
Antenk also offer a range of custom Tape and reel carrier strip packaging cavities.
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ShenZhen Antenk Electronics Co,Ltd , https://www.coincellholder.com