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參數(shù)資料
| 型號(hào)： | i72110 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | ?P to GPIB interface ASIC |
| 中文描述： | ？P的GPIB接口的ASIC |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大小： | 134K |
| 代理商： | I72110 |
Description
The i72110 GPIB-Chip is the ideal solution to implement a
IEEE488.2 GPIB interface for instruments controlled by a
microprocessor. The GPIB-ASIC is designed to meet all of the
functional requirements for talker and listener (TL) devices
as specified by the IEEE Standards 488.1-1987 and
488.2-1987. Connected between the microprocessor bus and
the GPIB, the GPIB-IC provides high-level management of
the GPIB to unburden the processor and to simplify both
hardware and software design. The i72110 requires only the
addition a few external components to implement a
talker/listener GPIB interface.
History
The IEEE Standard 488 describes a "Standard Digital Interface
for Programmable Instrumentation" which, since its
introduction in 1975 has become the most popular means of
interconnecting instruments and controllers in laboratory,
automatic test, and even industrial applications. Refined over
several years, the 488-1978 Standard, also known as The
General Purpose Interface Bus (GPIB), is a highly
sophisticated standard providing a high degree of of flexibility
to meet virtually all instrumentation requirements. The
i72110 implements all of the functions that are required to
interface to the GPIB as a talker or listener device. While it
is beyond of the scope of this document to provide a complete
explanation of the IEEE 488 Standard, a basic descriprion
follows:
The GPIB interconnects up to 15 devices over a commom
set of data control liners. Three types of devices are defined
by the standard: talker, listener, and controller, atthough
some devices may combine functions such as talker/listener
or talker/controller.
Data on the GPIB is transferred in a bit-parallel,
byte-serial
fashion
over
(/DIO[1]-/DIO[8]). A three-wire handshake is used to ensure
synchronisation of transmission and reception. In order to
permit more than one device to receive data at the same time,
these control lines are "open collector" so that the slowest
device controls the data rate. A number of other control lines
perform a variety of functions such as device addressing,
interrupt generation and so forth.
The i72110 implements all functional aspects of talker
and listener as defined by the 488.1-1987 Standard on a
single chip.
eight
data
I/O
lines
ines
ines
μP to GPIB interface ASIC
Advance Information
Datasheet i72110
i72110
Features
Talker/Listener interface for instrumentation
devices
Microprocessor Bus Interface with 5.0 VIO
NEC μPD7210 compatible register layout
100 pin TQFP package
RoHS conformant (Pb-free)
FO
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| I72110-33 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:uP to GPIB interface ASIC |
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| I721-1J5-20.000 | 制造商:ILSI 制造商全稱:ILSI America LLC 功能描述:Surface Mount Oscillator, TCXO, TCVCXO Metal Package, 11 mm x 18 mm |
| I721-1O3-20.000 | 制造商:ILSI 制造商全稱:ILSI America LLC 功能描述:Surface Mount Oscillator, TCXO, TCVCXO Metal Package, 11 mm x 18 mm |
| I721-1O5-20.000 | 制造商:ILSI 制造商全稱:ILSI America LLC 功能描述:Surface Mount Oscillator, TCXO, TCVCXO Metal Package, 11 mm x 18 mm |
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