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BR24A01F-WME2 Datasheet(PDF) 4 Page - Rohm |
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BR24A01F-WME2 Datasheet(HTML) 4 Page - Rohm |
4 / 18 page ![]() BR24A□□-WM series Technical Note 4/17 www.rohm.com 2009.08 - Rev.C © 2009 ROHM Co., Ltd. All rights reserved. ● Block diagram Fig.2 Block diagram ● Pin assignment and description Terminal name Input / output Function BR24A01A-WM BR24A02-WM BR24A04-WM BR24A08-WM BR24A16-WM BR24A32-WM BR24A64-WM A0 Input Slave address setting Not connected Slave address setting A1 Input Slave address setting Not connected Slave address setting A2 Input Slave address setting Not used Slave address setting GND - Reference voltage of all input / output, 0V SDA Input / output Slave and word address, Serial data input serial data output SCL Input Serial clock input WP Input Write protect terminal Vcc - Connect the power source. 1Kbit~64Kbit EEPROM array Control circuit High voltage generating circuit Power source voltage detection 7bit 8bit 9bit 10bi t 11bit 12bit 13b it Address decoder Slave - word address register Data register 8bit 7bit 8bit 9bit 10bi t 11bit 12bit 13b it START STOP ACK *1 *1 1 2 3 4 8 7 6 5 SDA SCL WP Vcc A1 A0 A2 GND *2 *2 *2 *1 7bit : BR24A01A-WM 8bit : BR24A02-WM 9bit : BR24A04-WM 10bit : BR24A08-WM 11bit : BR24A16-WM 12bit : BR24A32-WM 13bit : BR24A64-WM *2 A0=N.C. : BR24A04-WM A0, A1=N.C. : BR24A08-WM A0, A1= N.C. A2=Don’t Use : BR24A16-WM 1 2 3 4 8 6 5 BR24A01A-WM BR24A02-WM BR24A04-WM BR24A08-WM BR24A16-WM BR24A32-WM BR24A64-WM A0 7 A1 A2 GND Vcc WP SCL SDA |
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