| IES550x family expands your 2-wire bus without the hassle |
The 2-wire bus has been at its limit or falling down for too long.  Now the solution is here! Most designers don't have a choice or just didn't know. Problems can occur on a 2-wire bus when the wrong bus buffer or no bus buffer is used. - Existing bus buffers have large input-output offsets; this leaves little margin for external noise or a loss in signal.
- Due to their large input-output offsets, most existing bus buffers can't be inserted in multi-drop or back-to-back in a system.
- Problems can occur when the number of devices on the bus or the length of the bus lines has increased the capacitance to its maximum.
The IES5501 bus buffer fixes all these problems. Expand without the hassle, plug it in and see! |
| IES550x family |
The IES550x family has been released with great success.
By using analogue techniques we have been able to create a bus buffer series that provides superior performance over the competition. Take a closer look at the following parts:. IES5501 2-wire Bus Buffer |
| compatible 2-wire standards |
- I2CTM Bus (standard and fast mode)
- 2-Wire Protocols
- SMBusTM (standard and high power mode)
- PMBusTM
|
- IPMI & IPMB
- AccessBus
- TWI
- DDB
|
| what is a bus buffer |
A 2-wire bus has 2 control lines to access a number of slaves on the bus.
Bus buffers are used to increase the reach of a 2-wire bus or to support an increased number of devices connected to the bus. The buffer extends the bus load limit by buffering both the SCL (Clock) and SDA (Data) lines. A bus buffer can be used to create bus 'branches' and each branch can be enabled independently and can be brought on-line in a predetermined sequence. Following is a typical Bus Buffer application
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| where is a 2-wire bus and bus buffer used |
The 2-wire bus is an integral part of many systems. It is used in circuits ranging from system monitoring to networking systems together to controlling an LED on a front panel. Some of these applications include: |
- Power Management Systems
- Telecommunications Systems
(including ATCATM) - Backplane Management / Interconnect
- Desktop and Portable Computers
(including RAID) - Compact PCIRExpress · 2-Wire Bus Switch/Multiplexing Applications
- Excellent for implementing cost effective radial IPMB architecture
|
- Automotive Accessories (up to 15V)
- Building Automation
- TV / Projector / Monitor interconnection
- Game Consoles / Boxes
- TV / Projector / Monitor interconnection
- Game Consoles / Boxes
- Gaming Machine Networks
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I2CTM is a trademark of Philips Semiconductors Corporation now NXP
SMBusTM and PMBusTM are trademarks of System Management Interface Forum (SMIF) Inc
ATCATM PICMGR CompactPCIRExpress
are Registered trademarks of PCI Industrial Computers Manufacturers Group |
