IES5507T Hendon Semiconductors, IES5507T Datasheet

Buffers & Line Drivers Buffered 4-Chan Bus Switch

IES5507T

Manufacturer Part Number
IES5507T
Description
Buffers & Line Drivers Buffered 4-Chan Bus Switch
Manufacturer
Hendon Semiconductors
Datasheet

Specifications of IES5507T

Logic Family
IES5507
Number Of Channels Per Chip
4
Supply Voltage (max)
7 V
Supply Voltage (min)
- 0.3 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Output Current
30 mA
Output Voltage
110 mV, 80 mV
Supply Current
0.1 uA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

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Part Number
Manufacturer
Quantity
Price
Part Number:
IES5507T
Manufacturer:
Hendon Semiconductors
Quantity:
135
1
• Drop-in pin compatible with other manufacturer’s parts
• Each I/O is impedance isolated from all others allowing
• 30mA static sink capability on all ports.
• Works with I
• Fast switching times allow operation in excess of 1MHz
• Allows driving of large loads (eg. 5x 4nF)
• Hysteresis on I/O increases noise immunity
• Operating voltages from 2.7 V to 5.5 V
• Uncomplicated characteristics suitable for quick
2
• Large arrays of I
• Power Management Systems;
• Game Consoles; Computers; RAID systems;
(1) I
4
© 2009 Hendon Semiconductors Pty. Ltd. , all rights reserved.
2009 Mar 05, Revision 1.0
maximum capacitance on all branches.
SMBus (standard and high power mode), and PMbus
implementation in most common 2-wire bus applications
FEATURES
APPLICATIONS
BLOCK DIAGRAM
2
C-bus is a trademark of NXP B.V.
2
C-bus
R
1
2
C components - eg LED displays;
RESET
(1)
R
SDA
SCL
2
(Standard, Fast Mode, and FM+),
14
15
3
IES5507
Filter
2.7 - 5.5V
16
8
Transceiver
I C Slave
VDD
VSS
2
Fig.1 Block diagram
Buffered 4-Channel 2-Wire Bus Switch
10
12
11
13
5
7
4
6
9
1
1
2
1
SC0
SC1
SC2
SC3
SD0
SD1
SD2
SD3
A0
A1
A2
3
The IES5507 is a monolithic CMOS integrated circuit for
2-wire bus buffering and switching in applications including
I
principles.
Each of the four outputs may be independently enabled in
any combination as determined by the contents of the
programmable control register. Each I/O is impedance
isolated from all others, thus allowing a total of five
branches of 2-wire bus with the maximum specified load
(e.g. 5x 400pF for I
frequencies). More than one IES5507 may be used in
series, providing a substantial fan-out capability.
As per the IES5505/15 simple bus buffers, the IES5507
includes a uni-directional buffer for the clock signal, and a
bi-directional buffer for the data signal. The direction of the
clock signal may also be set by the contents of the
programmable control register. Clock stretching and timing
must always be under control of the Master device.
The IES5507 has excellent application to 2-wire bus
address expansion and increasing of maximum load
capacitance. Very large LED displays are a perfect
example.
2
C, SMBus, PMbus, and other systems based on similar
GENERAL DESCRIPTION
R
3
R
4
R
5
2
C FM+ at 1MHz, or 5x 4nF at lower
R
6
Contents are subject to the Disclaimer
R
7
R
8
Product Specification
IES5507
R
9
R
10

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IES5507T Summary of contents

Page 1

... IES5507 SCL 14 SDA 15 RESET 3 © 2009 Hendon Semiconductors Pty. Ltd. , all rights reserved. 2009 Mar 05, Revision 1.0 Buffered 4-Channel 2-Wire Bus Switch 3 GENERAL DESCRIPTION The IES5507 is a monolithic CMOS integrated circuit for 2-wire bus buffering and switching in applications including SMBus, PMbus, and other systems based on similar principles ...

Page 2

PINNING INFORMATION 5.1 Pin description SYMBOL PIN DESCRIPTION A0 1 Address Input Address Input 1 RESET 3 Active Low Reset Input SD0 4 Serial Data 0 SC0 5 Serial Clock 0 SD1 6 Serial Data 1 ...

Page 3

At some points during the communication, the data direction will reverse - for example, when the Slave transmits an acknowledge (ACK) or responds with it’s register contents. During these times, the controlling “input” side will have to rise to V ...

Page 4

The IES5507 is always addressable from the SCL/SDA side, regardless of the state of B7. Any device which can communicate data to the SCL/SDA pins, either by being directly attached to those pins or by transmitting through 7 BUS TRANSACTION ...

Page 5

LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134) Voltages are specified with respect to pin 8 (V SYMBOL PARAMETER V Supply voltage range ( Voltage range (SDA Sxx V Voltage range (RESET) RST ...

Page 6

SYMBOL PARAMETER RESET V HIGH-level input voltage RST(hi) V LOW-level input voltage RST(lo) V RESET Hysteresis RST(hys) I Input leakage current RST t LOW-level reset time w-RST(lo) t Reset (and POR) time RST Address A0, A1 HIGH-level input ...

Page 7

T = 25°C amb ( Fig.8 Typ.Input Levels vs. Supply Voltage 100 5. 2.7V ...

Page 8

APPLICATION INFORMATION 10.1 Design Considerations Figure 12 shows a typical data transfer through the IES5507. The IES5507 has excellent application to extending loads and expanding the address space of slave devices. Rise times are determined simply by the side ...

Page 9

Application circuits 3. SCL SDA Bus Master U3 400pF load @ 1MHz Master / or 4nF @ 100Hz Slave U4 SC2 SD2 400pF load @ 1MHz or 4nF @ 100Hz SC3 SD3 400pF load @ 1MHz or ...

Page 10

SCL SDA 2 Isolated I C Bus IES5507 provides bus isolation and simplifies calculation of bus RC components Fig.15 IES5507 isolating the standard I R1 180 V DD SCL SDA Bus Master ‘000’ U1 Structure in dashed box repeated ...

Page 11

... IES5507 T SO16 plastic small outline package; 16 leads; body width 3.9 mm Other package options are available - contact Hendon Semiconductors for details. For more information on packages, please refer to the document “Integrated Circuit Packaging and Soldering Information” on the Hendon Semiconductors web site. 12 ESD CAUTION Electrostatic Discharge (ESD) sensitive device ...

Page 12

... Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given advisory and does not form part of the specification. 15 COMPANY INFORMATION HENDON SEMICONDUCTORS PTY. LTD. ABN 17 080 879 616 Postal address: Hendon Semiconductors PO Box 2226 ...

Page 13

... DISCLAIMER Hendon Semiconductors Pty. Ltd. ABN 17 080 879 616 (“Hendon”) reserves the right to make changes to both its products and product data without notice. Hendon makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Hendon assume any liability arising out of the use or application of any Hendon product. Hendon specifically disclaims any and all liability, including without limitation incidental or consequential damages ...

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