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BR25H128-2AC Datasheet(PDF) 6 Page - Rohm |
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BR25H128-2AC Datasheet(HTML) 6 Page - Rohm |
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6 / 39 page  BR25H128-2AC 6/35 Datasheet www.rohm.com © 2014 ROHM Co., Ltd. All rights reserved. TSZ22111 ・ 15 ・ 001 TSZ02201-0R1R0G100190-1-2 18.Aug.2014 Rev.001 Block Diagram Pin Configuration Pin Description Pin Number Pin Name Input / Output Function 1 CSB Input Chip Select Input 2 SO Output Serial Data Output 3 WPB Input Write Protect Input Write Status Register Command is prohibited. 4 GND － All Input / Output Reference Voltage, 0V 5 SI Input Serial Data Input Start Bit, Instruction Code, Address and Data Input 6 SCK Input Serial Clock Input 7 HOLDB Input Hold Input Serial Communications may be suspended temporarily (HOLD State). 8 Vcc － Supply Voltage Figure 5. Block Diagram Figure 6. Pin Assignment Diagram Vcc HOLDB SCK SI CSB SO WPB GND BR25H128-2AC SO INSTRUCTION DECODE CONTROL CLOCK GENERATION VOLTAGE DETECTION WRITE INHIBITION HIGH VOLTAGE GENERATOR INSTRUCTION REGISTER 128Kbit EEPROM ADDRESS REGISTER DATA REGISTER ADDRESS DECODER READ/WRITE AMP 8bit 8bit STATUS REGISTER CSB SCK HOLDB 14bit 14bit WPB SI IDENTIFICATION PAGE |
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