Product Information

P82B715PN

P82B715PN electronic component of NXP

Datasheet
P82B715PN I2C-BUS BUFFER/EXTENDER

Manufacturer: NXP
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



Price (USD)

1: USD 3.969 ea
Line Total: USD 3.969

24 - Global Stock
Ships to you by
Mon. 01 Apr
MOQ: 1  Multiples: 1
Pack Size: 1
Availability Price Quantity
24 - Global Stock


Ships to you by Mon. 01 Apr

MOQ : 1
Multiples : 1
1 : USD 3.969
10 : USD 3.591
25 : USD 2.835
50 : USD 2.457
100 : USD 2.3625

     
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P82B715 2 I C-bus extender Rev. 08 9 November 2009 Product data sheet 1. General description 2 The P82B715 is a bipolar IC intended for application in I C-bus and derivative bus 2 systems. While retaining all the operating modes and features of the I C-bus it permits 2 extension of the practical separation distance between components on the I C-bus by buffering both the data (SDA) and the clock (SCL) lines. 2 The I C-bus capacitance limit of 400 pF restricts practical communication distances to a few meters. Using one P82B715 at each end of a long cable (connecting Lx/Ly to Lx/Ly) 2 reduces that cables loading on the linked I C-buses by a factor of 10 and allows the total system capacitance load (all devices, cable, connectors, and traces or wires connected to 2 2 the I C-bus) to be around 3000 pF while the loading on each I C-bus on the Sx/Sy sides remains below 400 pF. Longer cables or low-cost, general-purpose wiring may be used to 2 link I C-bus based modules without degrading noise margins. Multiple P82B715s can be connected together, linking their Lx/Ly ports, in a star or multi-point architecture as long as the total capacitance of the system is less than about 3000 pF and each bus at an Sx/Sy connection is well below 400 pF. This conguration, with the master and/or slave devices attached to the Sx/Sy port of each P82B715, has full multi-master communication capability. The P82B715 alone does not support voltage level translation, but it can be simply implemented using low cost transistors when required. There is no restriction on interconnecting the Sx/Sy I/Os, and, because the device output levels are always held within 100 mV of input drive levels, P82B715 is compatible with bus buffers that use voltage level offsets, e.g., PCA9511A, PCA9517, Sx/Sy side of P82B96. The lower V level and ability to operate with any master, slave or bus buffer is the OL primary advantage of the using the P82B715 for long distance buses at the disadvantage of not isolating bus capacitance like the P82B96 or PCA9600 are able to do. The primary disadvantage of the P82B96 and PCA9600 is that the static level offset needed to isolate bus capacitance does not allow these devices to operate with other bus buffers with special offset levels or with master/slaves that require a V lower than 0.8 V with noise IL margin. A proven quick design-in point-to-point/multi-point circuit (Figure 9) is included in Section 8.2 to allow rapid use of the P82B715 along with comparison waveforms so that the designer can clearly see the trade-offs between the P82B715 and the P82B96/PCA9600 and choose the type of device that is best for their application. 2. Features n Dual, bidirectional, unity voltage gain buffer with no external directional control required 2 n Compatible with I C-bus and its derivatives SMBus, PMBus, DDC, etc. n Logic signal levels may include (but not exceed) both supply and ground n Logic signal input voltage levels are output without change and are independent of V CC n 10 impedance transformation, but does not change logic voltage levelsP82B715 NXP Semiconductors 2 I C-bus extender n Supply voltage range 3 V to 12 V n Clock speeds to at least 100 kHz and 400 kHz when other system delays permit n ESD protection exceeds 2500 V HBM per Mil. Std 883C-3015.7 and 400 V MM per JESD22-A115 (I/Os have diodes to V and GND) CC n Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA 3. Applications 2 n Increase the total connected capacitance of an I C-bus system to around 3000 pF 2 n Drive I C-bus signals over long cables to approximately 50 meters or 3000 pF n Drives 10 lower impedance bus wiring for improved noise immunity 2 n Multi-drop distribution of I C-bus signals using low cost twisted-pair cables n AdvancedTCA radial IPMB architecture n Driving 30 mA Fm+ devices from standard 3 mA parts 4. Ordering information 1 Table 1. Ordering information Type number Package Name Description Version P82B715PN DIP8 plastic dual in-line package 8 leads (300 mil) SOT97-1 P82B715TD SO8 plastic small outline package 8 leads body width 3.9 mm SOT96-1 1 For applications requiring lower voltage operation, or additional buffer performance, see application notes 2 AN255, I C/SMBus repeaters, hubs and expanders and AN10710, Features and applications of the 2 P82B715 I C-bus extender. 4.1 Ordering options Table 2. Ordering options Type number Topside mark Temperature range P82B715PN P82B715PN - 40 C to +85 C P82B715TD P82B715 - 40 C to +85 C P82B715 8 NXP B.V. 2009. All rights reserved. Product data sheet Rev. 08 9 November 2009 2 of 23

Tariff Desc

8542.39.23 No ..Linear/analogue and peripheral integrated circuits, timers, voltage regulators, A/D and D/A converters, telecommunication and modem integrated circuits, other than board level products Free

Electronic integrated circuits- Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits
FR9
Freescale
FREESCALE SEMI
Freescale Semicon
FREESCALE SEMICONDUC
Freescale Semiconductor
Freescale Semiconductor - NXP
NXP
NXP Freescale
NXP (FREESCALE)
NXP / Freescale
NXP SEMI
NXP Semicon
NXP SEMICONDUCTOR
NXP Semiconductors
NXP USA Inc.
PH3
PHI

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