STMicroelectronics recently announced two RS232 interface chips that feature rugged ESD protection, 3 to 5,5 V supply voltage, 250 Kbps minimum data rate, and low-power operation. The two devices, the ST3243E RS232 transceiver and the ST3232E multiple RS232 driver/receiver chips, will find suitable application in a wide range of portable and desktop computer equipment including notebook, sub-notebook, and palm-top computers; a variety of battery-powered and handheld equipment; and printers and other computer peripherals.
Of the two RS232 interface chips, the ST3243E includes three drivers and five receivers, while the ST3232E has two drivers and two receivers. To ensure reliable operation, each RS232 I/O pin of both devices is protected to ±15 kV using the Human Body Model and ±8 kV using the IEC 1000-4-2 contact discharge method. Both chips also include a dual charge-pump circuit.
By integrating dual charge pumps and low-dropout transmitters, both devices fully meet EIA/TIA-232 specifications while operating from a 3 to 5,5 V supply voltage, eliminating the need for the ±12 V source typically required for other RS232 interface devices. The charge pumps require only four 0,1 µF capacitors. Other key specifications shared by both the ST3243E and ST3232E include a minimum 250 Kbps data rate at RS232 levels, 6 V/µs slew rate, and as much as a -40°C to +85°C operating temperature range.
For more information contact Simon Churches, Arrow Altech Distribution, 011 923 9600, [email protected]
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...Ultra-low power MEMS accelerometer Altron Arrow
Analogue, Mixed Signal, LSI
Analog Devices’ ADXL366 is an ultra-low power, 3-axis MEMS accelerometer that consumes only 0,96 µA at a 100 Hz output data rate and 191 nA when in motion-triggered wake-up mode.
Read more...Converting high voltages without a transformer Altron Arrow
Editor's Choice Power Electronics / Power Management
With appropriate power converter ICs, such as the LTC7897 from Analog Devices, many applications can be suitably powered without having to use complex and cost-intensive transformers.
Read more...RF power amplifier RF Design
Telecoms, Datacoms, Wireless, IoT
The ZHL-20M2G7025X+ from Mini-Circuits is a 32 W power amplifier that operates from 20 to 2700 MHz and delivers a saturated output power of +45 dBm.
Read more...Introducing the Quectel EG800Z series iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
The EG800Z series is Quectel’s latest ultra-compact LTE Cat 1 bis module, designed to deliver reliable connectivity, low power consumption, and robust performance across a wide range of IoT applications.
Read more...NeoMesh on LoRa CST Electronics
Telecoms, Datacoms, Wireless, IoT
Thomas Steen Halkier, CEO of NeoCortec, recently gave a keynote speech where he spoke about “NeoMesh on LoRa: Bringing true mesh networking to the LoRa PHY”.
Read more...Modules upgraded with Direct-to-Cell tech iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
Quectel Wireless Solutions has announced that several of its LTE modules are now available with Direct-to-Cell (D2C) functionality, enabling devices to seamlessly connect to satellite networks.
Read more...USB/Ethernet smart RF power sensor RF Design
Telecoms, Datacoms, Wireless, IoT
The PWR-18PWHS-RC from Mini-Circuits is an RF power sensor that operates from 50 MHz to 18 GHz and is designed to capture pulsed and trace modulated signals with very high data resolution.
Read more...Tiny Bluetooth LE + 802.15 + NFC module RF Design
Telecoms, Datacoms, Wireless, IoT
Unleashing enhanced processing power, expanded memory, and innovative peripherals, the BL54L15µ from Ezurio is the ultimate choice for small and low power connectivity.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version