2,5 V RS232 transceivers ESD-protected to ±15 kV

7 November 2001 Telecoms, Datacoms, Wireless, IoT

Maxim's MAX3388E/MAX3389E are 2,5 V-powered EIA/TIA-232 and V.28/V.24 communications interfaces with low power requirements, high data-rate capabilities, and enhanced ESD protection. These devices have two receivers and three transmitters. All RS232 inputs and outputs are protected to ±15 kV using the IEC 1000-4-2 air-gap discharge method, ±8 kV using the IEC 1000-4-2 contact discharge method, and ±15 kV using the human body model.

In addition to the traditional RS232 I/O, these devices have dedicated logic-level I/O pins for additional device-to-device handshaking. During shutdown the logic-level I/O pins are active for the MAX3389E. An internal 62 Ohm switch is provided to switch power to external circuitry or modules. A proprietary low-dropout transmitter output stage enables RS232 compatible performance from a +2,35 to +3,0 V supply with a dual charge pump (requires four small 0,1 µF capacitors at +2,5 V supply). The MAX3388E can run at data rates up to 460 Kbps while maintaining RS232-compatible output levels. The MAX3388E/MAX3389E are available in TSSOP package.

CST Electronics

(011) 452 0706

Further reading:

Wi-Fi 6 and Bluetooth LE co-processor
Altron Arrow Telecoms, Datacoms, Wireless, IoT
STMicroelectronics has released its ST67W611M1, a low-power Wi-Fi 6 and Bluetooth LE combo co-processor module.

Read more...

---

Improving accuracy of outdoor devices
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
In a real-world environment, accessing a direct satellite signal is not always possible, and it cannot be relied upon as the only solution to provide a device with accurate location at all times.

Read more...

---

New 3dB hybrid couplers
Electrocomp Telecoms, Datacoms, Wireless, IoT
Designed to facilitate the continued evolution of high-frequency wireless systems in various market segments, the new DB0402 3dB 90° hybrid couplers provide repeatable high-frequency performance compatible with automated assembly.

Read more...

---

Next-level Software Defined Radio
IOT Electronics Telecoms, Datacoms, Wireless, IoT
Great Scott Gadgets has announced the HackRF Pro, a powerful evolution of its popular Software Defined Radio (SDR) platform designed for engineers and enthusiasts.

Read more...

---

High-performance Zigbee and BLE module
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
The KCMA32S from Quectel boasts an ARM Cortex-M33 processor with a frequency of up to 80 MHz, and supports Zigbee 3.0, BLE 5.3 and BLE mesh.

Read more...

---

Championing local PCB manufacturing
Master Circuits Telecoms, Datacoms, Wireless, IoT
Master Circuits, founded in 1994 by Peter Frankish in Durban, was born from the vision to meet the growing local demand for quick-turnaround printed circuit boards in South Africa.

Read more...

---

How IoT-driven smart data helps businesses stay ahead
Trinity IoT Telecoms, Datacoms, Wireless, IoT
With around 19 billion IoT devices globally, embedded in everything from machinery to vehicles to consumer products, reliable data is plentiful.

Read more...

---

IoT-optimised LTE Cat 1 bis module
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
Quectel’s EG915K-EU is an LTE Cat 1 bis wireless communication module specially designed for M2M and IoT applications.

Read more...

---

Chip provides concurrent dual connectivity
EBV Electrolink Telecoms, Datacoms, Wireless, IoT
The IW693 from NXP is a 2x2 dual-band, highly integrated device that provides concurrent dual Wi-Fi 6E + Wi-Fi 6 and Bluetooth connectivity, supporting four different modes.

Read more...

---

The 6 GHz band radio solution
Altron Arrow Telecoms, Datacoms, Wireless, IoT
Analog Devices’ 16 nm transceiver family offers a highly integrated solution for this new frequency band, featuring low power consumption and high performance.

Read more...

---