I²C multiplexers for more consistant system management

16 Feb 2000 Telecoms, Datacoms, Wireless, IoT

Philips Semiconductors is offering a family of I2C multiplexers designed to provide more reliable, consistent switching for multiple system management buses and multiple I2C devices. Philips Semiconductors continues its leadership in I2C technology, offering a wide range of I2C devices to address all levels of the computing market, including desktop PCs, workstations, and servers.

The PCA954x family is designed for multiple system management buses or multiple I2C devices with the same address, different voltage levels, or loads too large for the I2C master to handle. The devices provide multiplexing and interrupt controlling to eliminate the need for glue logic and general purpose I/Os. In addition, the devices provide diodes to enable shifting between 5,0 and 3,3 V buses and bus isolation to prevent system hang-ups.

The PCA9540 is a two-channel I2C multiplexer without interrupts that switches between two I2C devices or buses. The PCA9542 is a two-channel multiplexer that contains three address pins, allowing a bus to use eight PCA9542s to switch up to 16 I2C devices or buses. The PCA9544 is a four-channel multiplexer that can be used for switching up to 32 I2C devices or buses. Both devices include an interrupt controller to prevent system hang-ups if a bus generates interrupts.

For further information see www.philipslogic.com/i2c or contact local distributors Arrow Altech Distributiion (011) 923 9600, Avnet Kopp (011) 444 2333 and Electrocomp (011) 458 9000.

Further reading:

What does Wi-Fi 7 mean for South African networks?
Telecoms, Datacoms, Wireless, IoT
With Wi-Fi 7 (802.11be), we are finally looking at a standard that was built, not just for more devices, but for the new way networks are used.

Read more...

---

Multiprotocol wireless SoC
RF Design Telecoms, Datacoms, Wireless, IoT
The nRF54LM20A from Nordic Semiconductor is a multiprotocol wireless System-on-Chip designed for demanding designs in Bluetooth devices.

Read more...

---

High performance communication
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
Quectel’s FCS950R is a high-performance Wi-Fi 5 and Bluetooth 4.2 module that can deliver a maximum data rate up to 433,3 Mbps in 802.11ac mode.

Read more...

---

Expanded STM32WL3x line for IoT sensors
Altron Arrow Telecoms, Datacoms, Wireless, IoT
The STM32WL31x and STM32WL30x are more tailored versions of the STM32WL33x for designers who wish to focus on specific features, while lowering their bill of materials.

Read more...

---

Full-band GNSS helical antenna
RF Design Telecoms, Datacoms, Wireless, IoT
A key feature of Calian’s HC3990XF antenna design is that it does not require a ground plane, making it ideal for size-constrained applications.

Read more...

---

BLE and BT Mesh module
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
The HM-BT4531 from HOPERF is a BLE data transmission module that features an ARM Cortex-M0 32-bit processor.

Read more...

---

Espressif entering the Wi-Fi 6E market
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
Espressif Systems is entering the Wi-Fi 6E market, extending its connectivity portfolio into the domain of high-throughput, low-latency wireless solutions.

Read more...

---

Ultra-low jitter clock buffers
Altron Arrow Telecoms, Datacoms, Wireless, IoT
New SKY53510/80/40 family of clock fanout buffers from Skyworks are purpose-built for data centres, wireless networks, and PCIe Gen 7 applications.

Read more...

---

Cutting-edge broadband power amplifier
RFiber Solutions Telecoms, Datacoms, Wireless, IoT
Designed for high efficiency and reliability, the WPGM0206012M from WAVEPIA is a cutting-edge broadband GaN MMIC power amplifier operating from 500 MHz to 8,5 GHz.

Read more...

---

The trends driving uptake of IoT Platform as a Service
Trinity IoT Editor's Choice Telecoms, Datacoms, Wireless, IoT
IoT platforms, delivered as a service, are the key that will enable enterprises to leverage a number of growing trends within the IT space, and access a range of benefits that will help them grow their businesses.

Read more...

---