BR93A86RF-WE2 Rohm, BR93A86RF-WE2 Datasheet
BR93A86RF-WE2
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BR93A86RF-WE2 Summary of contents
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TECHNICAL NOTE HIGH GRADE Specification HIGH RELIABILITY series Microwire BUS Serial EEPROMs Supply voltage 2.5V~5.5V Operating temperature –40°C~+105°C type BR93A46-W, BR93A56-W, BR93A66-W, BR93A76-W, BR93A86-W Description BR93A□□-W series is a serial EEPROM of serial 3-line interface method. Features • 3-line communications ...
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Absolute Maximum Ratings (Ta=25˚C) Parameter Symbol V Impressed voltage CC Pd Permissible dissipation Tstg Storage temperature range Topr Action temperature range - Terminal voltage * When using 25˚C or higher, 4.5mW (*1, * reduced per ...
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Action timing characteristics (Ta=-40 ~ +105˚C, Vcc=2.5 ~ 5.5V) Parameter SK frequency SK "H" time SK "L" time CS "L" time CS setup time DI setup time CS hold time DI hold time Data "1" output delay time Data "0" ...
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Characteristic data SPEC 2 1 Ta=-40°C Ta=25°C Ta=105° SUPPLY VOLTAGE : V (V) CC Fig input voltage V (CS,SK,DI 0.8 0.6 SPEC 0.4 Ta=25°C Ta=105°C 0.2 ...
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Ta=-40°C 10 Ta=25°C Ta=105°C 1 SPEC 0.1 0. SUPPLY VOLTAGE : V (V) CC Fig frequency f SK 1.2 1 0.8 0.6 0.4 SPEC Ta=-40°C 0.2 Ta=25°C Ta=105° ...
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Block diagram Command decode CS Control Clock generation SK Command DI register DO Dummy bit Pin assignment and function NC GND DO BR93AXXF-W:SOP8 BR93AXXFJ-W:SOP- Pin name GND - CS Input ...
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Description of operations Communications of the Microwire Bus are carried out by SK (serial clock), DI (serial data input), DO (serial data output), and CS (chip select) for device selection. When to connect one EEPROM to a microcontroller, connect it ...
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Timing chart 1) Read cycle (READ High-Z *1 Start bit When data "1" is input for the first time after the rise of CS, this is recognized as ...
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Write enable (WEN) / disable (WDS) cycle High-Z Fig. 33 Write enable (WEN) / disable (WDS) cycle At power on, this write disable status by the ...
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Application 1) Method to cancel each command READ Start bit Ope code 1 bit 2 bits Cancel is available in all areas in read mode. • Method to cancel : cancel "L" Fig. 36 READ cancel available ...
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Equivalent circuit Output circuit OEint. Fig. 41 Output circuit Input circuit CSint. DI Fig. 43 Input circuit 4) I/O peripheral circuit 4-1) Pull down CS. By making CS = "L" at power ON/OFF, mistake in operation and mistake write ...
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Pull up resistance Rpu and pull down resistance Rpd of DO pin As for pull up and pull down resistance value, select an appropriate value to this resistance value from microcontroller VIH, VIL, and VOH, IOH, VOL, IOL characteristics of ...
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When to directly connect DI and DO This IC has independent input terminal DI and output terminal DO, and separate signals are handled on timing chart, meanwhile, by inserting a resistance R between these DI and DO terminals, it ...
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Selection of resistance value R The resistance R becomes through current limit resistance at data collision. When through current flows, noises of power source line and instantaneous stop of power source may occur. When allowable through current is defined as ...
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Notes on power ON/OFF • At power ON/OFF, set CS "L". When CS is "H", this IC gets in input accept status (active). If power is turned on in this status, noises and the likes may cause malfunction, mistake ...
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... Any data, including, but not limited to application circuit diagrams and information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices ...
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... ROHM cannot be held responsible for any damages arising from the use of the products under conditions out of the range of the specifications or due to non-compliance with the NOTES specified in this catalog ...