P82B715TD,112 NXP Semiconductors, P82B715TD,112 Datasheet - Page 12

• Manufacturer Part Number: P82B715TD,112
• Description: IC I2C BUS EXTENDER 8-SOIC
• Manufacturer: NXP Semiconductors
• Type: Bus Extenderr

Specifications of P82B715TD,112

• Package / Case: 8-SOIC (3.9mm Width)
• Tx/rx Type: I²C Logic
• Delay Time: 250ns
• Capacitance - Input: 3000pF
• Voltage - Supply: 4.5 V ~ 12 V
• Current - Supply: 22mA
• Mounting Type: Surface Mount
• Logic Family: P82B
• Number Of Lines (input / Output): 1 / 1
• Propagation Delay Time: 250 ns
• Operating Supply Voltage: 4.5 V to 12 V
• Power Dissipation: 300 mW
• Operating Temperature Range: - 40 C to + 85 C
• Logic Type: I2C Bus Extender
• Mounting Style: SMD/SMT
• Number Of Input Lines: 1
• Number Of Output Lines: 1
• Output Current: 60 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-3981-5; 935154770112; P82B715TD; P82B715TD

NXP Semiconductors
P82B715_8
Product data sheet
Figure 10
on the P82B715 Sx/Sy I/O. Notice that the offset is small and the static levels remain
under 0.4 V. Coupling of SDA to SCL is negligible when SCL is LOW but slight
cross-coupling of SCL to SDA is visible when SDA is HIGH and therefore higher
impedance. The waveforms are very clean and will easily support all available I
masters and slaves.
Figure 11
substituted. P82B96 uses a static level offset on the slave side to isolate noise and
loadings on either side of this device. The nominal offset is 0.8 V and that V
worst-case design tolerance problems with slave devices that do not use I
switching levels, for example TTL levels. It also precludes operation with other bus buffers
using special non-compliant I
The P82B96 does not actually interfere with the operation of compliant I
down to at least 2.7 V supply or even with TTL devices (that switch around 1.4 V). It only
causes a theoretical worst case design tolerance problem because TTL devices have a
worst case 0.8 V requirement. A TTL designer must center the actual switch point
between the two specified limits, 0.8 V and 2.1 V, so in reality it cannot ever approach the
problem 0.8 V theoretical limit.
The PCA9600 is an improved version of the P82B96 offering 1 MHz operation and lower,
more closely controlled V
Fig 11. Clock and data signal output to a slave from Sx/Sy of a P82B96 replacing one of
voltage
(V)
the P82B715s
shows the I
shows the waveforms on the Sx/Sy I/O as seen by the slave when a P82B96 is
7
5
3
1
1
0
SDA
SCL
Rev. 08 — 9 November 2009
2
C-bus waveforms from the long distance line as seen by the slave
4
OL
on the Sx and Sy pins.
2
C-bus levels.
SCL
8
SDA
12
SCL
SCL
16
time ( s)
SDA
P82B715
002aad819
© NXP B.V. 2009. All rights reserved.
I
2
2
C-bus extender
C-bus devices
2
C-bus
OL
20
may create
2
C-bus
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