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BR24L10F-E
* BR24L32-W/F-W/FJ-W/FV-W BR24L64-W/F-W Features Pin Configurations • 32k bit serial EEPROM organized as 4k × 8bit (BR24L32) 64k bit serial EEPROM organized as 8k × 8bit (BR24L64) • 2 wire bus serial interface (2 byte Address) A0 1 7 WP A2 3 6 SCL GND 4 • Low operating voltage range (2V operating) Read : 1.8~5.5V Write : 1.8~5.5V • Low current consumption Active : 3mA MAX Standby : 2µA MAX 8 Vcc A1 2 5 SDA * DIP8/SOP8/SOP-J8/SSOP-B8 DIP8/SOP8 (Only BR24L64) Pin Functions • Clock frequency : 100kHz MAX (1.8~5.5V) 400kHz MAX (2.5~5.5V) • Write cycle time : 5ms MAX Functions Pin Names A0, A1, A2 • Address auto-increment function during read operation • Automatic erase-before-write function during write operation • Page write function : 32byte Slave Address Inputs GND SDA Serial Data Input/Output SCL Serial Data Clock WP Write Protect Vcc • Inadvertent write protection function Inadvertent write protection at low voltage (Vcc Lock-out function) WP (Write Protect) function • Schmitt trigger circuit and noise filter are built into SCL and SDA pins • 1,000,000 write cycle typical Ground Power Supply • 40 years data retention • Operating temperature range : -40~85˚C * Under development Block Diagram 32~64k bit EEPROM Array A0 A1 12bit: BR24L32 13bit: BR24L64 Address Decoder 8bit 12bit: BR24L32 13bit: BR24L64 Slave Words Address Register Data Register WP SCL SDA A2 START STOP Control Logic ACK High Voltage Generation Voltage Detection 9
ROHM
ローム株式会社
日本
炭素皮膜抵抗の特許を元に創業した。社名のROHM(R:抵抗 Ohm:抵抗を示す単位)はそこに由来する。その後、大規模集積回路の製造を手がけ始め、現在は様々な機能を顧客の要望に応じてLSI上に集積するカスタムLSIが主力となっている。
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