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P82B96
Datasheet
General description
The P82B96 is a bipolar IC that creates a non-latching, bidirectional, logic interface between the normal I2C-bus and a range of other bus configurations. It can interface I2C-bus logic signals to similar buses having different voltage and current levels.
For example, it can interface to the 350 uA SMBus, to 3.3 V logic devices, and to 15 V levels and/or low-impedance lines to improve noise immunity on longer bus lengths.
It achieves this interface without any restrictions on the normal I2C-bus protocols or clock speed. The IC adds minimal loading to the I2C-bus node, and loadings of the new bus or remote I2C-bus nodes are not transmitted or transformed to the local node. Restrictions on the number of I2C-bus devices in a system, or the physical separation between them, are virtually eliminated. Transmitting SDA and SCL signals via balanced transmission lines (twisted pairs) or with galvanic isolation (opto-coupling) is simple because separate directional Tx and Rx signals are provided. The Tx and Rx signals may be directly connected, without causing latching, to provide an alternative bidirectional signal line with I2C-bus properties.
Features
- Bidirectional data transfer of I2C-bus signals
- Isolates capacitance allowing 400 pF on Sx/Sy side and 4000 pF on Tx/Ty side
- Tx/Ty outputs have 60 mA sink capability for driving low-impedance or high capacitive buses
- 400 kHz operation over at least 20 meters of wire (see AN10148)
- Supply voltage range of 2 V to 15 V with I2C-bus logic levels on Sx/Sy side independent of supply voltage
- Splits I2C-bus signal into pairs of forward/reverse Tx/Rx, Ty/Ry signals for interface with opto-electrical isolators and similar devices that need unidirectional input and output signal paths.
- Low power supply current
- ESD protection exceeds 3500 V HBM per JESD22-A114, 250 V DIP package, 400 V SO package MM per JESD22-A115, and 1000 V CDM per JESD22-C101
- Latch-up free (bipolar process with no latching structures)
- Packages offered: DIP8, SO8 and TSSOP8
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| P82B96DP | P82B96DP-T | 9352 762 69118 | Volume production | SOT505-1
(TSSOP8) | Reel Pack, SMD, 13" | Standard Marking | Not available
| Always Pb-free |
| P82B96PN | P82B96PN | 9352 622 97112 | Volume production | SOT97-1
(DIP8) | Tube | Standard Marking | P82B96PN
| week 36, 2003 |
| P82B96TD | P82B96TD | 9352 622 95112 | Volume production | SOT96-1
(SO8) | Tube | Standard Marking | P82B96TD
| week 26, 2004 |
| P82B96TD | P82B96TD-T | 9352 622 95118 | Volume production | SOT96-1
(SO8) | Tape reel smd | Standard Marking | P82B96TD
| week 26, 2004 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| P82B96DP | 9352 762 69118 | 2.0400 | not available | |||||
| P82B96PN | 9352 622 97112 | 2.1300 | Order samples | |||||
| P82B96TD | 9352 622 95112 | 2.0400 | not available | |||||
| P82B96TD | 9352 622 95118 | 2.0400 | Order samples |
Applications
- Interface between I2C-buses operating at different logic levels (for example, 5 V and 3 V or 15 V)
- Interface between I2C-bus and SMBus (350 uA) standard
- Simple conversion of I2C-bus SDA or SCL signals to multi-drop differential bus hardware, for example, via compatible PCA82C250
- Interfaces with opto-couplers to provide opto-isolation between I2C-bus nodes up to 400 kHz.
Related applications
LCD display - discretes focus
PDA - discretes focus
Motherboard components
50-60 Hz CRT integrated DTV (TV210D)
Mid-range integrated DTV (TV810)
Intelligent washing machine
Transceiver board
Power amplifier board
Main CPU board
LCD TV - MMS functionality
Technical documents
Application Notes
AN10146_02;
I2C 2002-1A Evaluation Board (26-Feb-03)
AN10148_4;
PCA9564 - I2C-bus controller (22-Nov-04)
AN10216_1;
I2C manual (27-Mar-03)
AN460_1;
Using the P82B96 for bus interface (14-Feb-01)
Support Documents
75013239;
I 2 C Logic Selection Guide (2005-01-12)
75011212;
I2C 2002-1A Evaluation Board Kit (01-Mar-03)
75012744;
I2C Bus Solutions 2004 (2004-02-01)
philips_i2c_handbook;
I2C Handbook (2004-01-01)
UM10204_3;
I2C-bus specification and user manual (26-Jun-07)
philips_i2c_logic_overview;
Interface Products Business Line Specialty Logic Product Line I2C Logic Family Overview (2004-01-01)
75007416;
LCD drivers linecard (2001-11-23)
75009151;
P82B715 Bus Ext. Chip (2001-12-01)
75010694;
P82B96 Buffer Chip (2002-12-02)
notes_82b96;
Philips I2C bus, extending its reach (2001-05-01)
Parametrics/similar products
| Type number | Package | Operating temp.(Cel) | I²C-bus(kHz) | Operating voltage(VDC) | Inputs | Outputs |
|---|---|---|---|---|---|---|
| P82B96DP | SOT505-1
(TSSOP8) | -40~85 | 400 | 2.0~15.0 | 1 | 1 |
| P82B96PN | SOT97-1
(DIP8) | -40~85 | 400 | 2.0~15.0 | 1 | 1 |
| P82B96TD | SOT96-1
(SO8) | -40~85 | 400 | 2.0~15.0 | 1 | 1 |
Similar products
P82B96 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.
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