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BR93L56RFVM-WTR
BR93L56-W/F-W/RF-W/FJ-W/RFJ-W/FV-W /RFV-W/RFVM-W BR93L66-W/F-W/RF-W/FJ-W/RFJ-W/FV-W /RFV-W/RFVM-W Features Pin Configurations BR93L56-W BR93L66-W • 2k bit serial EEPROM organized as 128 × 16bit (BR93L56) 4k bit serial EEPROM organized as 256 × 16bit (BR93L66) • Low voltage operation Read : 1.8~5.5V Write : 1.8~5.5V • Low current consumption Active : 1.5mA MAX (Vcc=1.8~2.5V) 3mA MAX (Vcc=2.5~5.5V) Standby : 2µA MAX • Clock frequency : 500kHz MAX (Vcc=1.8~2.5V) 2MHz MAX (Vcc=2.5~5.5V) BR93L56F-W/ FJ-W/FV-W BR93L66F-W/ FJ-W/FV-W CS 1 8 Vcc NC 1 8 NC SK 2 7 NC Vcc 2 7 GND DI 3 6 NC CS 3 6 DO 5 GND SK 4 5 DI DO 4 DIP8 SOP8/SOP-J8/SSOP-B8 BR93L56RF-W/RFJ-W/ RFV-W/RFVM-W BR93L66RF-W/RFJ-W/ RFV-W/RFVM-W • Write cycle time : 5ms MAX CS 1 8 Vcc SK 2 7 NC • Address auto-increment function during read operation DI 3 6 NC • Automatic erase-before-write function during write operation DO 4 5 GND • Inadvertent write protection function SOP8/SOP-J8/SSOP-B8/MSOP8 Defaults to power up with write-disabled state Pin Functions Software instructions for write-enable/disable Inadvertent write protection at low voltage (Vcc Lock-out function) Functions Pin Names • READY/BUSY Status indicator function (DO pin) Chip Select CS • Schmitt trigger circuit & noise filter are built into SK, DI pin. SK Serial Data Clock • TTL compatible input/output DI Serial Data Input • 1,000,000 write cycle typical DO • 40 years data retention • Operating temperature range : -40~85˚C Serial Data Output GND Ground Vcc Power Supply Block Diagram CS Voltage Detection Instruction Decode Control Clock Generation Write Disable SK DI DO Instruction Register Address 7bit: BR93L56 Buffer 8bit: BR93L66 Data Register 13 16bit High Voltage Generation Address 7bit: BR93L56 Decoder 8bit: BR93L66 R/W Amps 16bit 2~4k bit EEPROM Array
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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