news - April 2009

IES5507, BUFFERED 4-CHANNEL 2-WIRE BUS SWITCH RELEASED Hendon Semiconductors is proud to announce a new addition to its 2-wire bus buffer range of products with the release of the IES5507, buffered 4-channel 2-wire bus switch. In addition, the IES5507 allows each of the branches to be impedance isolated from all others, thus allowing a total of five branches of 2-wire bus with the maximum specified load. The four outputs of the IES5507 may be also independently enabled in any combination as determined by the contents of the programmable control register. Furthermore, the IES5507 is suitable to be used with the new I2C-bus Fm+ mode with a 1MHz operating frequency, making it ideal to be used to interface between buses of different operating frequencies. The IES5507 is a suitable drop-in pin compatible with other common 4 channel I2C bus switch. The IES5507 is available in standard SO-16 RoHS compliant package. Samples are now available and can be requested by contacting us. Find out more about the IES5507 at www.busbuffer.com/IES5507-bus-switch.asp.

news - November 2008

Mouser Press Release Hendon Semiconductors Pty. Ltd (Hendon) has entered into a global distribution agreement with Mouser Electronics Inc. for the distribution of Hendon’s range of integrated circuits. This partnership will enable Hendon to penetrate the global marketplace and makes the parts easily accessible to design engineers through Mouser’s web and print catalogs. “We are delighted with the opportunity to have Mouser Electronics as a distributor for Hendon Semiconductors products,” said Brenton Scott, General Manager of Hendon Semiconductors. “Mouser’s focus on global growth and customer service aligns with our own strategic goals. In addition, Mouser’s user-friendly distribution model will provide design engineers easy access to our range of innovative products.” Mouser stocks a variety of products from Hendon Semiconductors including demo boards, two-wire bus buffer ICs, triac control ICs and others. According to Mike Scott, Mouser’s Vice President of Active Products, distributing Hendon Semiconductor’s products capitalizes on Mouser’s core competencies of fast introduction, extensive stocking, and promotion of the newest products to the design engineering community. Customers can now purchase Hendon Semiconductors products through Mouser’s online catalogue: http://www.mouser.com/hendonsemi/

news - April 2008

IES5502 Dual Bi-Directional Bus Buffer with Hot Insertion Logic NOW RELEASED Hendon Semiconductors expands its range of its two-wire bus buffer with the introduction of the IES5502, fast dual bi-directional bus buffer with hot insertion logic. The hot insertion logic with pre-charge feature prevents data corruption on the bus during I/O card insertion into live backplanes. The features of the IES5502 make them well suited for the computing or networking systems such as backplane applications where there are differences in voltage levels and speeds. The unique function of the IES5502 provides one of the fastest response times of such bi-directional buffers without the use of Rise Time Accelerators (RTA). The RTA when combined with low noise margins may cause glitches outside of the I2C specification. Similarly to the IES5501, the IES5502 is a fully I2C compliant bus buffer and supports a wide range of other two-wire bus systems including fast modes (operation in excess of 1MHz). IES5502 is offered in 8-pin SO and MSOP package. For more information visit our IES5502 product page or contact us for more details.

news - March 2008

IES5505 / IES5515 Simple 2-wire Bus Buffer NOW RELEASED Hendon Semiconductors recently released the IES5505 and IES5515, a simple isolating buffer for two-wire bus system. With the growth of application adopting the two-wire bus system, this is the solution for a simple application where a fully-featured bus buffer is not required. The only difference between the IES5505 and IES5515 is its maximum pull-down capability. The IES5505 has 4mA is suitable for I2C (both standard and fast modes), PMBUS and SMBUS. The IES5515 with a pull-down capability of 30mA is ideal for FM+ application as well. The DIRECTION pin on the ICs allow Master devices to be placed on both side of the buffer by allowing the uni-directional clock to be reversed. Both IES5505 and IES5515 also features an ENABLE which allows different section of the bus to be isolated and brought on-line successively. By combining the low cost price of IES5505/IES5515 compared to other bus buffers, a simple cost-effective solution can be easily achieved. Their simple characteristics are suitable for quick implementation in most two-wire bus application. The IES5505 and IES5515 are available in 8-lead SO8 and 8-lead MSOP package. Engineering samples and production builds are available now. For more information visit our IES5505 - IES5515 product page or contact us for more details.

news - December 2007

Hendon Semiconductors expands its distribution into the United States Hendon Semiconductors is pleased to announce that Braemac California has been appointed as their distributor for the US market place effective from 15 December 2007. Braemac can now provide Hendon Semiconductors range of integrated circuits thermostatic management, triac drive, mains power control and the new bus buffer family. Typical applications of these integrated circuits are home electrical appliances, telecommunications, home automation, safety products and lighting. Their understanding of the electronics industry makes Braemac an ideal choice to represent Hendon Semiconductors. Braemac headquarter is based in California with offices Virginia and Canada. They have a skilled team that provides sales (distribution) and technical support. Braemac is also planning to setup offices at Minnesota, Texas and Massachusetts. With their knowledge of local market place, we are confident that this will be an important strategy for Hendon Semiconductors to develop its presence and customer base in the US market. Visit Braemac California website at www.braemacca.com or contact us for more details.

news - March 2007

IES5501 NOW IN FULL PRODUCTION The first integrated circuit from Hendon Semiconductors range of 2-wire bus buffers, IES5501 is now in full production. The IES5501 is compatible for extending and expanding I2C(TM), SMBus(TM), PMBus(TM), IPMB and other similar 2-wire bus systems. The IES5501 finds its place in 2-wire bus systems within telecommunication systems (including ATCA), CompactPCI, VME bus systems, RAID products, power management systems, backplane management systems, bus switch/multiplexing buffering and for bus voltage level translation. The IES5501 is offered in 8-pin SO and 8-pin MSOP, all are RoHS compliant. Should you require further information, please contact us for more details.

news - January 2007

Integrated Electronic Solutions introduces a new name ‘Hendon Semiconductors’ Integrated Electronic Solutions Pty Ltd, an Australian based integrated circuit design and manufacturing company is reintroducing its global sales and marketing of integrated circuits under the trading name of Hendon Semiconductors. The name Hendon Semiconductors will provide an improved image and focus for our drive to be recognized as a leading supplier in our specialist markets of the integrated circuit business of Integrated Electronic Solutions. “This change complements our introduction of integrated circuits within the North American market” Brenton Scott, Managing Director of Integrated Electronic Solutions said. Hendon Semiconductors products will include the new release of high performance data interface products for 2-wire bus systems as well as mains switching and temperature control range of integrated circuits. It is certainly an exciting change for us, and reinforces our aim to produce easy to use, feature-packed, effective integrated circuits. With the design, business and quality backing of 35 years experience of Integrated Electronic Solutions, customers can be assured of high quality total applications support. Should you require further information, please contact us for more details.

news - March 2006

Engineering Samples Now Available for IES5501 Bus Buffer Integrated Circuit Integrated Electronic Solutions is proud to announce that engineering samples for the IES5501 are now available and can be requested via the website, with our online sampling form on the Contact Us page We can provide engineering samples in SO8 or DIP8 packages. The IES5501 integrated circuit is compatible with and suitable for extending and expanding I2CTM, SMBus, PMBus and other similar 2-wire bus systems. The IES5501 bus buffer can be applied in 2-wire bus systems within Telecommunication, CompactPCI, VME bus systems, RAID products, power management systems, backplane management systems, bus switch/multiplexing buffering and for bus voltage level translation. Order your samples now and to see how the IES5501 can give improved performance in your design. I2C is a Trademark of Philips Semiconductors Corporation

news - December 2006

Announcement This news release announces two significant items from Integrated Electronic Solutions. The first is the release next month of the IES5501 integrated circuit, the first in a planned new family of high performance integrated circuits, developed to meet the increased demands for bus operation in new two wired systems. This integrated circuit takes advantage of highly skilled analogue design capabilities in bipolar technology, to meet extended specifications demanded in many applications. The second is the release of this website, www.bus-buffer.com, which you have now discovered if you are reading this article. The website is intended as an extended resource to find, request and exchange information on bus buffering capabilities and the areas of potential application. Links in this website will take you to product specification and data sheets, as well as to more general information on bus and bus buffer performance. We invite you to contact us via the website for further information and assistance. Engineering samples will be available shortly, on request via the website.

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