NXP USA Inc.
NXP Semiconductors, a frontrunner in embedded controllers, offers a wide array of MCUs with Arm-based processors. Their innovation extends to robust Power Management for industry and automotive use. NXP's products globally empower and interconnect, fostering proficiency for individuals, organizations, and the world. Noteworthy is the integration of Freescale Semiconductor into NXP (December 2015).
View All Product from NXP USA Inc. 2-channel, bidirectional buffer I2C-bus and SMBus compatible Active HIGH repeater enable input Open-drain input/outputs Lock-up free operation Supports arbitration and clock stretching across the repeater Accommodates Standard-mode and Fast-mode I2C-bus devices and multiple masters Powered-off high-impedance I2C-bus pins Operating supply voltage range of 2.3 V to 3.6 V 5.5 V tolerant I2C-bus and enable pins
The PCA9515A is a CMOS integrated circuit intended for application in I2C-bus andSMBus systems.While retaining all the operating modes and features of the I2C-bus system, it permitsextension of the I2C-bus by buffering both the data (SDA) and the clock (SCL) lines, thusenabling two buses of 400 pF.The I2C-bus capacitance limit of 400 pF restricts the number of devices and bus length.Using the PCA9515A enables the system designer to isolate two halves of a bus, thusmore devices or longer length can be accommodated. It can also be used to run twobuses, one at 5 V and the other at 3.3 V or a 400 kHz and 100 kHz bus, where the100 kHz bus is isolated when 400 kHz operation of the other is required.Two or more PCA9515As cannot be put in series. The PCA9515A design does notallow this configuration. Since there is no direction pin, slightly different ‘legal’ low voltagelevels are used to avoid lock-up conditions between the input and the output. A ‘regularLOW’ applied at the input of a PCA9515A will be propagated as a ‘buffered LOW’ with aslightly higher value. When this ‘buffered LOW’ is applied to another PCA9515A,PCA9516A or PCA9518/A in series, the second PCA9515A, PCA9516A or PCA9518/Awill not recognize it as a ‘regular LOW’ and will not propagate it as a ‘buffered LOW’ again.The PCA9510/A, PCA9511/A, PCA9512/A, PCA9513/A, PCA9514/A cannot be used inseries with the PCA9515A, PCA9516A or PCA9518/A, but can be used in series withthemselves since they use shifting instead of static offsets to avoid lock-up conditions.The output pull-down of each internal buffer is set for approximately 0.5 V, while the inputthreshold of each internal buffer is set about 0.07 V lower, when the output is internallydriven LOW. This prevents a lock-up condition from occurring.
TYPE | DESCRIPTION | Select all |
---|---|---|
Applications | I²C | |
Mounting Type | Surface Mount | |
Type | Buffer, ReDriver | |
Operating Temperature | -40°C ~ 85°C | |
Product Status | Active | |
Current - Supply | 800µA | |
Package | Bulk | |
Voltage - Supply | 2.3V ~ 3.6V | |
Series | - | |
Capacitance - Input | 6 pF/m | |
Signal Conditioning | - | |
Delay Time | - | |
Number of Channels | 2 | |
Data Rate (Max) | 400kHz | |
Output | 2-Wire Bus | |
Supplier Device Package | 8-SOIC | |
Input | 2-Wire Bus | |
Package / Case | 8-SOIC (0.154", 3.90mm Width) |
NXP USA Inc.
NXP Semiconductors, a frontrunner in embedded controllers, offers a wide array of MCUs with Arm-based processors. Their innovation extends to robust Power Management for industry and automotive use. NXP's products globally empower and interconnect, fostering proficiency for individuals, organizations, and the world. Noteworthy is the integration of Freescale Semiconductor into NXP (December 2015).
View All Product from NXP USA Inc.IC REDRIVER I2C 2CH 400KHZ 8SOIC
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