BR24L64F-WE2 Rohm Semiconductor, BR24L64F-WE2 Datasheet
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BR24L64F-WE2
Specifications of BR24L64F-WE2
BR24L64F-WE2TR
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BR24L64F-WE2 Summary of contents
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Serial EEPROM Series High Reliability Series 2 EEPROMs I C BUS BR24L□□-W Series,BR24S□□□-W 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 reliability, while ...
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BR24L□□-W Series,BR24S□□□-W Series Serial EEPROM Series High Reliability Series 2 EEPROMs I C BUS BR24L□□-W Series ●Description BR24L□□-W series is a serial EEPROM of I ●Features 1) Completely conforming to the world standard I 2) Other devices than EEPROM can ...
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... Permissible dissipation Storage temperature range Action temperature range Terminal voltage When using at Ta=25℃ or higher, 4.5mW(*1,*2), 3.0mW(*3,*7) 3.3mW(*4),3.1mW(*5,* reduced per 1℃ ●Memory cell characteristics (Ta=25℃, Vcc=1.8~5.5V) Parameter *2 Number of data rewrite times *2 Data hold years ○Shipment data all address FFh *1 BR24L02/16/32 ...
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BR24L□□-W Series,BR24S□□□-W Series ●Action timing characteristics (Unless otherwise specified, Ta= Parameter SCL frequency Data clock “HIGH“ time Data clock “LOW“ time *2 SDA, SCL rise time *2 SDA, SCL fall time Start condition hold time Start condition setup time Input ...
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BR24L□□-W Series,BR24S□□□-W Series ●Sync data input / output timing tR tF tHIGH SCL tSU:DAT tLOW tHD:STA SDA (入力) (input) tPD tBUF SDA (output) (出力) ○Input read at the rise edge of SCL ○Data output in sync with the fall of ...
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BR24L□□-W Series,BR24S□□□-W Series ●Block diagram * 7bit 8bit 9bit 10bi *2 Address A1 2 decoder * High voltage GND 4 generating circuit * 1 7bit : BR24L01A-W 8bit : BR24L02-W 9bit : BR24L04-W ●Pin assignment and ...
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BR24L□□-W Series,BR24S□□□-W Series ●Characteristic data (The following values are Typ. ones SPEC 3 2 Ta=85℃ Ta=-40℃ Ta=25℃ Vcc[V] Fig.3 H input voltage VIH1,2 1 0.8 0.6 Ta=25℃ Ta=85℃ ...
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BR24L□□-W Series,BR24S□□□-W Series ●Characteristic data (The following values are Typ. ones). 50 SPEC1,2 0 Ta=-40℃ Ta=25℃ -50 Ta=85℃ -100 -150 -200 Vcc[V] Fig.21 Input data hold time tHD:DAT(HIGH) 300 SPEC2 200 SPEC1 100 Ta=85℃ ...
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BR24L□□-W Series,BR24S□□□-W Series 2 C BUS communication ●I 2 ○I C BUS data communication BUS data communication starts by start condition input, and ends by stop condition input. Data is always 8bit long, and acknowledge is always ...
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... Fig.39 Page write cycle (BR24L32/64-W) ・Data is written to the address designated by word address (n-th address) ・By issuing stop bit after 8bit data input, write to memory cell inside starts. ・When internal write is started, command is not accepted for tWR (5ms at maximum). ・By page write cycle, the following can be written in bulk : bytes ( BR24L01A-W, BR24L02-W) And when data of the maximum bytes or higher is sent, data from the first byte is overwritten. (Refer to " ...
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BR24L□□-W Series,BR24S□□□-W Series ○Notes on write cycle continuous input SLAVE WORD R T ADDRESS ADDRESS(n) SDA *1 LINE Note ...
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BR24L□□-W Series,BR24S□□□-W Series ○Internal address increment Page write mode (in the case of BR24L02-W) WA7 ----- WA4 WA3 0 ----- ----- ----- ----- 0 0 06h 0 ----- ...
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BR24L□□-W Series,BR24S□□□-W Series ●Read Command ○Read cycle Data of EEPROM is read. In read cycle, there are random read cycle and current read cycle. Random read cycle is a command to read data by designating address, and is used generally. ...
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BR24L□□-W Series,BR24S□□□-W Series ●Software reset Software reset is executed when to avoid malfunction after power on, and to reset during command input. Software reset has several kinds, and 3 kinds of them are shown in the figure below. (Refer to ...
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BR24L□□-W Series,BR24S□□□-W Series ●WP valid timing (write cancel usually fixed to 'H' or 'L', but when WP is used to cancel write cycle and so forth, pay attention to the following WP valid timing. During write cycle execution, ...
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BR24L□□-W Series,BR24S□□□-W Series ●I/O peripheral circuit ○Pull up resistance of SDA terminal SDA is NMOS open drain, so requires pull up resistance. As for this resistance value (R this resistance value from microcontroller V limited. The smaller the R , ...
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BR24L□□-W Series,BR24S□□□-W Series ●Cautions on microcontroller connection ○ BUS recommended that SDA port is of open drain input/output. However, when to use CMOS input / output of tri state to SDA port, insert a ...
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BR24L□□-W Series,BR24S□□□-W Series 2 C BUS input / output circuit ●I ○Input (A0,A2,SCL) Fig.57 Input pin circuit diagram ○Input / output (SDA) Fig.58 Input / output pin circuit diagram ○Input (A1, WP) Fig.59 Input pin circuit diagram ●Notes on power ...
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BR24L□□-W Series,BR24S□□□-W Series 3. Set SDA and SCL so as not to become 'Hi-Z'. When the above conditions 1 and 2 cannot be observed, take the following countermeasures the case when the above condition 1 cannot be observed. ...
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BR24L□□-W Series,BR24S□□□-W Series Serial EEPROM Series High Reliability Series 2 EEPROMs I C BUS BR24S□□□-W Series ●Description BR24S□□□-W series is a serial EEPROM of I2C BUS interface method. ●Features 1) Completely conforming to the world standard I and serial data ...
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... Impressed voltage Permissible dissipation Storage temperature range Action temperature range Terminal voltage *When using at Ta=25℃ or higher, 4.5mW(*1,*2), 3.0mW(*3,*7) 3.3mW(*4),3.1mW(*5,* reduced per 1℃ ●Memory cell characteristics (Ta=25℃, Vcc=1.7~5.5V) Parameter *1 Number of data rewrite times *1 Data hold years *1 Not 100% TESTED ● ...
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BR24L□□-W Series,BR24S□□□-W Series ●Action timing characteristics (Unless otherwise specified, T=-40~+85℃, Vcc=1.7~5.5V) Parameter SCL Frequency Data clock "High" time Data clock "Low" time SDA, SCL rise time *1 SDA, SCL fall time *1 Start condition hold time Start condition setup time ...
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BR24L□□-W Series,BR24S□□□-W Series ●Sync data input/output timing tR tF tHIGH SCL tSU:DAT tLOW tHD:STA SDA (Input) (入力) tBUF tPD SDA (Output) (出力) ○Input read at the rise edge of SCL ○Data output in sync with the fall of SCL Fig.1-(a) ...
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BR24L□□-W Series,BR24S□□□-W Series ●Pin assignment and description Terminal Input/ name Output A0 Input A1 Input A2 Input GND - SDA Input / Output SCL Input WP Input Vcc - ●Characteristic data (The following values are Typ. ones.) 6 Ta=-40℃ 5 ...
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BR24L□□-W Series,BR24S□□□-W Series ●Characteristic data (The following values are Typ. ones.) 2.5 SPEC 2 1.5 Ta=-40℃ Ta=25℃ 1 Ta=85℃ 0 SUPPLY VOLTAGE : Vcc[V] Fig.9 Current consumption at WRITE operation I (f ...
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BR24L□□-W Series,BR24S□□□-W Series ●Characteristic data (The following values are Typ. ones.) 5 Ta=-40℃ 4 Ta=25℃ Ta=85℃ SPEC SUPPLY VOLTAGE : Vcc[V] Fig.24 BUS open time before transmission t BUF 0.6 ...
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BR24L□□-W Series,BR24S□□□-W Series 2 C BUS communication ●I 2 ○I C BUS data communication BUS data communication starts by start condition input, and ends by stop condition input. Data is always 8bit long, and acknowledge is always ...
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... Fig.36 Page write cycle (BR24S32/64/128/256-W) ・Data is written to the address designated by word address (n-th address). ・By issuing stop bit after 8bit data input, write to memory cell inside starts. ・When internal write is started, command is not accepted for tWR (5ms at maximum). ・By page write cycle, the following can be written in bulk bytes (BR24S08-W, BR24S16-W) And when data of the maximum bytes or higher is sent, data from the first byte is overwritten. (Refer to " ...
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BR24L□□-W Series,BR24S□□□-W Series ○Notes on write cycle continuous input SLAVE WORD R T ADDRESS ADDRESS(n) SDA LINE note ...
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BR24L□□-W Series,BR24S□□□-W Series ○Internal address increment Page write mode (in the case of BR24S16-W) WA7 ----- WA4 WA3 0 ----- ----- ----- ----- 0 1 0Eh 0 ----- ...
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BR24L□□-W Series,BR24S□□□-W Series ●Read Command ○Read cycle Data of EEPROM is read. In read cycle, there are random read cycle and current read cycle. Random read cycle is a command to read data by designating address, and is used generally. ...
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BR24L□□-W Series,BR24S□□□-W Series ●Software reset Software reset is executed when to avoid malfunction after power on, and to reset during command input. Software reset has several kinds, and 3 kids of them are shown in the figure below. (Refer to ...
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BR24L□□-W Series,BR24S□□□-W Series ●WP valid timing (write cancel usually fixed to 'H' or 'L', but when WP is used to cancel write cycle and so forth, pay attention to the following WP valid timing. During write cycle execution, ...
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BR24L□□-W Series,BR24S□□□-W Series ●I/O peripheral circuit ○Pull up resistance of SDA terminal SDA is NMOS open drain, so requires pull up resistance. As for this resistance value (R this resistance value from microcontroller V limited. The smaller the R , ...
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BR24L□□-W Series,BR24S□□□-W Series ●Cautions on microcontroller connection ○ BUS recommended that SDA port is of open drain input/output. However, when to use CMOS input / output of tri state to SDA port, insert a ...
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BR24L□□-W Series,BR24S□□□-W Series 2 C BUS input / output circuit ●I ○Input (A0, A1, A2, SCL, WP) Fig.54 Input pin circuit diagram ○Input/Output (SDA) Fig.55 Input /output pin circuit diagram ●Notes on power ON At power on internal ...
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BR24L□□-W Series,BR24S□□□-W Series ●Low voltage malfunction prevention function LVCC circuit prevents data rewrite action at low power, and prevents wrong write. At LVCC voltage (Typ. =1.2V) or below, it prevent data rewrite. ●Vcc noise countermeasures ○Bypass capacitor When noise or ...
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BR24L□□-W Series,BR24S□□□-W Series ●Ordering part number Part No. BUS type Operating 2 temperature/ 24 : Power source voltage L: -40 ℃ ~+85 ℃ -40 ℃ ~+85 ℃ / ●Package specifications SOP8 5.0±0.2 ...
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BR24L□□-W Series,BR24S□□□-W 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 0.08 (0.52) 0.65 TSSOP-B8 3.0 ± 0.1 (MAX 3.35 include BURR) 4 ± ...
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BR24L□□-W Series,BR24S□□□-W Series MSOP8 2.9±0.1 (MAX 3.25 include BURR) + 6° 4° −4° 1PIN MARK 0.145 0.475 S +0.05 0.22 –0.04 0.08 S 0.65 VSON008X2030 2.0±0.1 1PIN MARK S 0.08 S 1.5±0.1 ...
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