DS2405

www.maxim-ic.com FEATURES Open-drain PIO pin is controlled by matching 64-bit, laser-engraved registration number associated with each device Logic level of open drain output can be determined over 1-Wire® bus for closed-loop control PIO pin sink capability is greater than 4mA at 0.4V Multiple DS2405s can be identified on a common 1-Wire bus and be turned on or off independent of other devices on the bus Unique, factory-lasered and tested 64-bit registration number (8-bit family code +48bit serial number +8-bit CRC tester) assures absolute identity because no two parts are alike Built-in multidrop controller ensures compatibility with other MicroLAN products Reduces control, address, data, and power to a single data pin Directly connects to a single port pin of a microprocessor and communicates at up to 16.3kbits/s 8-bit family code specifies DS2405 communications requirements to reader 8-bit cyclic redundancy check ensures errorfree selection Zero standby power required Low cost TO-92, SOT-223, or 6-pin TSOC surface mount package 1-Wire communication operates over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C DS2405 Addressable Switch PIN ASSIGNMENT TO-92 DS2405 TSOC PACKAGE GND DATA PIO NC NC NC TOP VIEW 3.7 X 4.0 X 1.5 123 123 BOTTOM VIEW See Mech. Drawings Section TOP VIEW NOTE: The leads of TO-92 packages on tape-and-reel are formed to approximately 100 mils (2.54 mm) spacing. For details refer to drawing 56-G0006-003. PIN DESCRIPTION TSOC Pin 1 -...