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BR24C21 Datasheet(PDF) 3 Page - Rohm |
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BR24C21 Datasheet(HTML) 3 Page - Rohm |
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3 / 23 page  Technical Note BR24C21,BR24C21F,BR24C21FJ,BR24C21FV, BU9882-W,BU9882F-W,BU9882FV-W 3/22 www.rohm.com 2011.08 - Rev.C © 2011 ROHM Co., Ltd. All rights reserved. ● Block diagram ● Pin layout diagram Fig.2 Pin Layout Pin Name I/O Functions VCC - Power Supply GND - Ground (0V) N.C. - No Connection SCL IN Serial Clock Input for Bi-directional Mode SDA IN/OUT Slave and Word Address, Serial Data Input, Serial Data Output *1 VCLK IN Clock Input (Transmit-Only Mode) Write Enable (Bi-directional Mode) *1 An open drain output requires a pull-up resistor. 8 7 6 5 4 3 2 1 SDA SCL VCLK VCC GND N.C. 1 Kbit EEPROM ARRAY ADDRESS DECODER SLAVE・WORD ADDRESS REGISTER DATA REGISTER CONTROL LOGIC HIGH VOLTAGE VCC LEVEL DETECT 7bit 7bit 8bit ACK START STOP N.C. N.C. Fig.1 Block Diagram VCC VCLK (入力) SCL SDA 入出 BR24C21 BR24C21F BR24C21FJ BR24C21FV GND N.C. N.C. N.C. |
Similar Part No. - BR24C21_11 |
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Similar Description - BR24C21_11 |
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