BR93L46RF-WE2 Rohm Semiconductor, BR93L46RF-WE2 Datasheet
BR93L46RF-WE2
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BR93L46RF-WE2TR
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High Reliability Serial EEPROMs High Reliability Series EEPROMs Microwire BUS BR93L□□-W Series, BR93A□□-WM Series, BR93H□□-WC Series ROHM's series of serial EEPROMs represent the highest level of reliability on the market. A double cell structure provides a failsafe method of data ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series Serial EEPROM Series High Reliability Series EEPROMs Microwire BUS BR93L□□-W Series, 93A□□-WM Series ●Description BR93L□□-W Series, BR93A□□-WM Series are serial EEPROM of serial 3-line interface method ●Features 1) 3-line communications of chip select, serial ...
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... Parameter *1 Number of data rewrite times *1 Data hold years ○Shipment data all address FFFFh *1 Not 100% TESTED ●Memory cell characteristics (VCC=2.5～5.5V,BR93A□□-WM) Parameter *1 Number of data rewrite times *1 Data hold years ○Shipment data all address FFFFh *1 Not 100% TESTED ● ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ●Electrical characteristics (Unless otherwise specified, VCC=2.5～5.5V, Ta=-40～+85℃, BR93L□□-W, Ta=-40～+105℃, BR93A□□-WM) Parameter Symbol “L” input voltage 1 V IL1 “L” input voltage 2 V IL2 “H” input voltage 1 V IH1 “H” input voltage 2 ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ●Action timing characteristics (BR93L□□-W, Ta=-40～+85℃, VCC=2.5～5.5V, BR93A□□-WM, Ta=-40～+105℃, 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 ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ●BR93L□□-W Characteristic data (The following characteristic data are Typ. values.) Fig.2 H output voltage VIH(CS,SK,DI) Fig.5 L output voltage VOL-IOL(Vcc=2.5V) Fig.8 H output voltage VOH-IOH(Vcc=2.5V) Fig.11 Output leak current ILO (DO) Fig.14 Consumption current ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ●BR93L□□-W Characteristic data (The following characteristic data are Typ. values.) Fig.17 Consumption current at WRAL action ICC3 (WRAL, fSK=500kHz) Fig.20 SK high time tSKH Fig.23 CS hold time tCSH Fig.26 DI setup time tDIS ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ●BR93A□□-WM Characteristic data (The following characteristic data are Typ. values.) Fig.32 H output voltage VIH(CS,SK,DI) Fig.35 L output voltage VOL-IOL(Vcc=4.0V) Fig.38 In put leak current ILI(CS,SK,DI) Fig.41 Consumption current at READ action Icc2(READ, fSK=2MHz) ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ●BR93A□□-WM Characteristic data (The following characteristic data are Typ. values.) Fig.44 SK frequency fSK Fig.47 CS low time tCS Fig.50 DI hold time tDIH Fig.53 Output data “1” delay time tPD1 Fig.56 Write cycle ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ●Block diagram Command decode CS Control SK Clock generation Command DI register Dummy bit DO ●Pin assignment and function NC GND BR93LXXF-W/AXXF-WM:SOP8 BR93LXXFJ-W/AXXFJ-WM:SOP-J8 BR93LXXFV-W:SSOP-B8* BR93LXXFVT-W:TSSOP-B8* NC Vcc *BR93L46/56/66-W Pin name VCC ...
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... As for read, by continuous SK clock input after setting the read command, data output of the set address starts, and address data in significant order are sequentially output continuously. (Auto increment function) *2 When the read and the write all commands are executed, data written in the selected memory cell is automatically deleted, and input data is written. www.rohm.com © ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ●Timing chart 1) Read cycle (READ High-Z *1 Start bit When data “1” is input for the first time after the rise ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series 4) Write enable (WEN) / disable (WDS) cycle High-Z Fig.63 Write enable (WEN) / disable (WDS) cycle ○ At power on, this write ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ●Application 1) Method to cancel each command ○READ Start bit Ope code 1bit 2bit Cancel is available in all areas in read mode. ・Method to cancel：cancel by CS=“L” Fig.66 READ cancel available timing ○WRITE, ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ○ERASE, ERAL Start bit Ope code 1bit 2bit 2 a：From start bit to 9 clock rise ＊ Cancel by CS=“L” 2 b：9 clock rise and after ＊ Cancellation is not available by any means. ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series 3) Equivalent circuit Output circuit OEint. Fig.71 Output circuit (DO) Input circuit DI Fig.73 Input circuit (DI) 4) I/O peripheral circuit 4-1) Pull down CS. By making CS=“L” at power ON/OFF, mistake in operation ...
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... After the timer circuit in the IC works and creates the period of tE/W, this time circuit completes automatically. （DO status） And write to the memory cell is made in the period of tE/W, and during this period, other command is not accepted. R/B display = “H” (READY) = command wait status （ ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series 6) 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 ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ○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 ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series 7) 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 ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ●Note ofn use (1) Described numeric values and data are design representative values, and the values are not guaranteed. (2) We believe that application circuit examples are recommendable, however, in actual use, confirm characteristics ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series Serial EEPROM Series High Reliability Series EEPROMs Microwire BUS BR93H□□-WC Series ●Description BR93H□□-WC Series is a serial EEPROM of serial 3-line interface method. ●Features 1) Withstands electrostatic voltage 8kV, (twice more than other series)（HBM ...
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... Parameter Impressed voltage Permissible dissipation Storage temperature range Action temperature range Terminal voltage *When using at Ta=25 ℃ or higher, 4.5mW(*1,*2 reduced per 1 ℃ . ●Memory cell characteristics (VCC=2.7～5.5V) Parameter *1 Number of data rewrite times Data hold years *1 Not 100% TESTED ●Recommended action conditions ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ●Sync data input / output timing (READ) DO (WRITE) ○Data is taken by DI sync with the rise of SK. ○At read action, data is output from DO in sync ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ●BR93H□□-WC Characteristic data www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 25/40 Technical Note 2011.02 - Rev.F ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ●BR93H□□-WC Characteristic data www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 26/40 Technical Note 2011.02 - Rev.F ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ●Block diagram Command decode CS Control SK Clock generation Command DI register Dummy bit DO ●Pin assignment and function VCC NC BR93H56RF-WC:SOP8 BR93H56RFJ-WC:SOP- Pin name Vcc GND ...
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... When the read and the write all commands are executed, data written in the selected memory cell is automatically deleted, and input data is written. *3 For the write all command, data written in memory cell of the areas designated by B2, B1, and B0, are automatically deleted, and input data is written in bulk. ● ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ●Timing chart 1) Read cycle (READ High-Z *1 Start bit When data “1” is input for the first time after the rise ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series 4) Write enable (WEN) / disable (WDS) cycle High-Z Fig. 33 Write enable (WEN) / disable (WDS) cycle ○At power on, this write disable status ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series 2) Equivalent circuit ○Output circuit OEint. Fig.36 Output circuit (DO) ○Input circuit RESET int. CS Fig.37 Input circuit (CS Fig.39 Input circuit (SK, DI) 3) I/O peripheral circuit 3-1) Pull down ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series 3- available in both pull up and pull down. Do output become “High-Z” in other READY / BUSY output timing than after data output at read command and write command. When malfunction ...
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... After the timer circuit in the IC works and creates the period of tE/W, this time circuit completes automatically. （DO status） And write to the memory cell is made in the period of tE/W, and during this period, other command is not accepted. R/B display = “H” (READY) = command wait status Even after tE/W (max.10ms) from write of the memory cell, the following command is accepted. （ ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series 4-2) Timing “H” after write command. DO terminal in READY / BUSY function output. When the next start bit input is recognized, “HIGH-Z” gets in. →Especially, at command input after write, ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series 4-4) DO status READY output timing (When the microcontroller DI/O is “L”, EEPROM DO outputs “H”, and “L” is input to DI) ・Set the EEPROM input level VIL satisfy the following. ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series 6) Notes on power ON/OFF ・At power ON/OFF, set CS “L”. When CS is “H”, this IC gets in input accept status (active). At power ON, set CS “L” to prevent malfunction from noise. ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ●Cautions on use (1) Described numeric values and data are design representative values, and the values are not guaranteed. (2) We believe that application circuit examples are recommendable, however, in actual use, confirm characteristics ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series ROHM Type BUSType Operating name 93：Microwire temperature L:-40℃~+85℃ A:-40℃~+105℃ H:-40℃~+125℃ SOP8 5.0±0.2 (MAX 5.35 include BURR) + 6° 4° −4° 0.595 0.17 ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series SSOP-B8 3.0 ± 0.2 (MAX 3.35 include BURR 0.15 ± 0.1 S 0.1 +0.06 0.22 -0.04 (0.52) 0.65 TSSOP-B8 3.0 ± 0.1 (MAX 3.35 include BURR) ...
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BR93L□□-W Series, 93A□□-WM Series, BR93H□□-WC Series MSOP8 2.9±0.1 (MAX 3.25 include BURR 1PIN MARK 0.475 S +0.05 0.22 –0.04 0.08 S 0.65 www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. <Tape ...
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No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose ...