DS9097/DS9097E Port Adapter Provides simple, low-cost interface R

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DS9097/DS9097E Port Adapter Provides simple, low-cost interface R

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19-4873; 8/09
DS9097/DS9097E Port Adapter
Provides simple, low-cost interface RS232C Port reading writing iButtondevices (DS9097E required programming DS198x Add-Only iButtons) Adapter powered entirely from RS232 interface (DS9097E require optional auxiliary supply) Standard DB-9 (DSD9097) DB-25 (DS9097E) female connector mating adapter Port computer RJ-11 connector easy attachment probe such DS9092GT DS9097E additional male power jack allow auxiliary supply programming Add-Only iButtons assignment DS9097, DB-9 (3), (2), (4), PC-Ground (5); other pins connected assignment DS9097E, DB-25 (2), (3), (20), (4), PCGround (7); other pins connected Auxiliary supply should regulated minimum, center=GND, outer ring=V+ (Newark Electronics Stock 84F2081, Allied Electronics Stock 9289895, Stancor Model STA-300R, equivalent)
ORDERING INFORMATION
DS9097# DB-9 Version DS9097E# DB-25 Version, EPROM upgraded
Denotes RoHS-compliant device that include lead(Pb) that exempt under RoHS requirements.
DESCRIPTION
DS9097 Port Adapter simple, low-cost passive adapter which performs RS232C (±12V) level conversion, allowing iButton probe connected serial port computer that nonEPROM iButton read written directly. also read EPROM-based iButtons. serial port must support data transmission rate 115.2 kbits/s order create 1-Wiretime slots correctly. Nearly support required data rate fully compatible with DS9097. Since 8-bit character data bits plus start stop bit) RS232 port operating 115.2 kbits/s used form single 1-Wire time slot, maximum effective 1-Wire transfer rate 14.4 kbits/s (regular speed). Details operation DS9097 found Application Note 214, Using UART Implement 1-Wire Master.
iButton trademark Maxim Integrated Products, Inc.
DS9097/DS9097E
DS9097E upgraded version DS9097 that capable supplying volts necessary program EPROM-based iButton products (DS198x Add-Only iButtons) addition reading writing SRAM EEPROM-based devices (DS199x, DS196x, DS197x). When combined with appropriate software, DS9097E used standalone mode where programming current supplied serial port itself. this configuration, maximum number EPROM bits that programmed simultaneously four typical serial port. higher performance, above mentioned auxiliary supply plugged into power jack DS9097E with proper software enable serial port program eight EPROM bits simultaneously.
DS9097/DS9097E
REVISION HISTORY
REVISION DATE 8/09 DESCRIPTION Added Ordering Information table. Changed reference Application Note Application Note Description section. PAGES CHANGED

DS9097/DS9097E Port Adapter Provides simple, low-cost interface R

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