PCA9517AD,118 NXP Semiconductors, PCA9517AD,118 Datasheet - Page 4

• Manufacturer Part Number: PCA9517AD,118
• Description: IC I2C BUS REPEATER 8-SOIC
• Manufacturer: NXP Semiconductors
• Type: Repeaterr

Specifications of PCA9517AD,118

• Package / Case: 8-SOIC (3.9mm Width)
• Mounting Type: Surface Mount
• Current - Supply: 5mA
• Voltage - Supply: 2.7 V ~ 5.5 V
• Delay Time: 170ns
• Capacitance - Input: 6pF
• Tx/rx Type: I²C Logic
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 0.9 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Number Of Circuits: Dual
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 935285763118::PCA9517AD-T::PCA9517AD-T

NXP Semiconductors
PCA9517_3
Product data sheet
6.1 Enable
6.2 I
be able to rise to 0.5 V until the A-side rises above 0.3V
to rise being pulled up by the external pull-up resistor. The V
the 0.3V
circuit. The PCA9517 logic and all I/Os are powered by the V
The EN pin is active HIGH with an internal pull-up to V
when the repeater is active. This can be used to isolate a badly behaved slave on
power-up until after the system power-up reset. It should never change state during an
I
enabling part way through a bus cycle could confuse the I
The enable pin should only change state when the global bus and the repeater port are in
an idle state to prevent system failures.
As with the standard I
HIGH levels on the buffered bus (standard open-collector configuration of the I
The size of these pull-up resistors depends on the system, but each side of the repeater
must have a pull-up resistor. This part designed to work with Standard mode and Fast
mode I
specify 3 mA output drive; this limits the termination current to 3 mA in a generic I
system where Standard mode devices and multiple masters are possible. Under certain
conditions higher termination currents can be used.
Please see Application Note AN255, I
additional information on sizing resistors and precautions when using more than one
PCA9517 in a system or using the PCA9517 in conjunction with other bus buffers.
2
2
C-bus operation because disabling during a bus operation will hang the bus and
C-bus systems
2
C-bus devices in addition to SMBus devices. Standard mode I
CCA
reference to the A-side input comparators and for the power good detect
2
Rev. 03 — 30 January 2007
C-bus system, pull-up resistors are required to provide the logic
2
C/SMBus Repeaters, Hubs and Expanders for
Level translating I
CCB
CCA
2
C-bus parts being enabled.
and allows the user to select
, then the B-side will continue
CCA
CCB
is only used to provide
pin.
2
PCA9517
C-bus devices only
© NXP B.V. 2007. All rights reserved.
2
C-bus repeater
2
C-bus).
2
C-bus
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