PCA9515DP,118 NXP Semiconductors, PCA9515DP,118 Datasheet - Page 4

• Manufacturer Part Number: PCA9515DP,118
• Description: IC I2C BUS REPEATER 8-TSSOP
• Manufacturer: NXP Semiconductors
• Type: Repeaterr

Specifications of PCA9515DP,118

• Package / Case: 8-TSSOP
• Tx/rx Type: I²C Logic
• Delay Time: 55ns
• Capacitance - Input: 6pF
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 2.3mA
• Mounting Type: Surface Mount
• Logic Family: PCA9515
• Operating Supply Voltage: 2.3 V to 3.6 V
• Power Dissipation: 100 mW
• Operating Temperature Range: - 40 C to + 85 C
• Input Voltage: 5.5 V
• Logic Type: I2C Bus
• Maximum Clock Frequency: 400 KHz
• Mounting Style: SMD/SMT
• Output Current: 50 mA
• Output Voltage: 5.5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: OM6285 - EVAL BOARD I2C-2002-1A568-4002 - DEMO BOARD I2C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-1034-2; 935268635118; PCA9515DP-T

NXP Semiconductors
6. Functional description
PCA9515_9
Product data sheet
6.1 Enable
6.2 I
The PCA9515 BiCMOS integrated circuit contains two identical buffer circuits which
enable I
performance. (Refer to
The PCA9515 BiCMOS integrated circuit contains two bidirectional open-drain buffers
specifically designed to support the standard low-level-contention arbitration of the
I
non-inverting, open-drain buffers, one for SDA and one for SCL.
The EN pin is active HIGH with an internal pull-up and allows the user to select 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
because disabling during a bus operation will hang the bus and enabling part way through
a bus cycle could confuse the I
The enable pin (EN) 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 is designed to work with Standard-mode and
Fast-mode I
only specify 3 mA output drive; this limits the termination current to 3 mA in a generic
I
certain conditions, higher termination currents can be used. Please see application note
AN255, “I
resistors and precautions when using more than one PCA9515 in a system or using the
PCA9515 in conjunction with the P82B96.
2
2
2
C-bus. Except during arbitration or clock stretching, the PCA9515 acts like a pair of
C-bus system where Standard-mode devices and multiple masters are possible. Under
C-bus systems
2
C-bus and similar bus systems to be extended without degradation of system
2
C/SMBus Repeaters, Hubs and Expanders” for additional information on sizing
2
C-bus devices in addition to SMBus devices. Standard-mode I
2
C-bus system, pull-up resistors are required to provide the logic
Figure 1 “Block diagram of
Rev. 09 — 23 April 2009
2
C-bus parts being enabled.
PCA9515”.)
PCA9515
© NXP B.V. 2009. All rights reserved.
I
2
2
C-bus operation
C-bus repeater
2
C-bus devices
2
C-bus.)
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