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Datasheet: I72110 (No company)

Up To Gpib Interface Asic


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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.
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
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 eight data I/O lines
(/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.
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Advance Information
Datasheet i72110
P to GPIB interface ASIC
Talker/Listener interface for instrumentation
Microprocessor Bus Interface with 5.0 VIO
NEC PD7210 compatible register layout
100 pin TQFP package
RoHS conformant (Pb-free)
GPIB Capabilities
IEEE 488.1 Capabilities: AH1, SH1, T/TE5, L/LE3, SR1,
RL1, PP1/PP2, DC1, DT1, C0
GPIB Handshake Rate: > 1Mbytes/sec
Environmental and Physical
Package: 100 TQFP, 16.0 mm x 16.0 mm x 1.6 mm
Storage Temperature: -20...80C
Ambient Temperature: -0...70C
Ordering Information
- Tray of TBA units
On the Web
for more information and resources.
This document contains information on products under development by INES.
The information is intended to help you evaluate this product. INES reserves
ines Test and Measurement GmbH & Co. KG
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the right to change oder discontinue work on this proposes product without
notice. All specifications are subject to change without notice. Copyright
2005. All rights reserved.
31542 Bad Nenndorf DE (Germany)
Phone +49 5723 916 250
Fax +49 5723 916 252
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Advance Information
Datasheet i72110 (cont.)
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