BR24A01AFJ-WM Ver la hoja de datos (PDF) - ROHM Semiconductor

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Fabricante

BR24A01AFJ-WM

105℃ Operation I2C BUS EEPROM (2-Wire)

ROHM Semiconductor 

BR24Axxx-WM (1K 2K 4K 8K 16K 32K 64K)

●I2C BUS input / output circuit

○Input (A0,A2,SCL)

○Input / output (SDA)

Figure 55. Input pin circuit diagram

○Input (A1, WP)

Figure 56. Input / output pin circuit diagram

Figure 57. Input pin circuit diagram

●Notes on power ON

At power on, in IC internal circuit and set, VCC rises through unstable low voltage area, and IC inside is not completely reset,

and malfunction may occur. To prevent this, functions of POR circuit and LVCC circuit are equipped. To assure the operation,

observe the following conditions at power on.

1. Set SDA = 'H' and SCL ='L' or 'H'

2. Start power source so as to satisfy the recommended conditions of tR, tOFF, and Vbot for operating POR circuit.

tR

VCC

Recommended conditions of tR, tOFF,Vbot

tR

tOFF

Vbot

10ms or below 10ms or longer

0.3V or below

tOFF

Vbot

100ms or below 10ms or longer

0.2V or below

0

Figure 58. Rise waveform diagram

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TSZ02201-0R1R0G100140-1-2

29.Jan.2018 Rev.003

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