MAX490 Datasheet – Low-Power Transceiver – Maxim

Part Number : MAX490, MAX490ECPA

Function : Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceiver

Package : DIP 8 Pin

Manufacturers : Maxim


MAX490 datasheet


The MAX481, MAX483, MAX485, MAX487 – MAX490, and MAX1487 are low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The MAX483, MAX487, MAX488, and MAX489 feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, thus allowing error-free data transmission up to 250kbps. The driver slew rates of the MAX481, MAX485, MAX490, MAX491, and MAX1487 are not limited, allowing them to transmit up to 2.5Mbps.

MAX490 pinout transceiver

1. Low-Power RS-485 Transceivers
2. Low-Power RS-422 Transceivers
3. Level Translators
4. Transceivers for EMI-Sensitive Applications
5. Industrial-Control Local Area Networks


MAX490 Datasheet


Other data sheets within the file : MAX490CPA, MAX490CSA, MAX490CUA

DS18B20 Pinout – Temperature Sensor – Maxim

Part Number : DS18B20

Function : Programmable Resolution 1-Wire Digital Thermometer

Package : TO-92, uSOP 8pin type

Manufacturers : Maxim Integrated (formerly Dallas)




The DS18B20 digital thermometer provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with nonvolatile user programmable upper and lower trigger points.
DS18B20 pinout datasheet



1. Unique 1-Wire® interface requires only one port pin for communication

2. Each device has a unique 64-bit serial code stored in an onboard ROM

3. Multidrop capability simplifies distributed temperature sensing applications

4. Requires no external components

5. Can be powered from data line. Power supply range is 3.0V to 5.5V


Block Diagram

DS18B20 Datasheet block diagram

Reference Site

  2. Maxim Official Homepage

DS18B20 Pinout

DS18B20Z pdf

Other data sheets within the file : DS18B20+, DS18B20+T&R, DS18B20-SL+T&R, DS18B20-SL/T&R