参数资料
型号: BR24L32F-WE2
厂商: Rohm Semiconductor
文件页数: 18/41页
文件大小: 0K
描述: IC EEPROM 32KBIT 400KHZ 8SOP
标准包装: 1
格式 - 存储器: EEPROMs - 串行
存储器类型: EEPROM
存储容量: 32K (4K x 8)
速度: 400kHz
接口: I²C,2 线串口
电源电压: 1.8 V ~ 5.5 V
工作温度: -40°C ~ 85°C
封装/外壳: 8-SOIC(0.173",4.40mm 宽)
供应商设备封装: 8-SOP
包装: 标准包装
产品目录页面: 1379 (CN2011-ZH PDF)
其它名称: BR24L32F-WE2DKR
BR24L □□ -W Series,BR24S □□□ -W Series
Technical Note
● I 2 C BUS input / output circuit
○ Input (A0,A2,SCL)
Fig.57 Input pin circuit diagram
○ Input / output (SDA)
Fig.58 Input / output pin circuit diagram
○ Input (A1, WP)
Fig.59 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 action,
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 t R , t OFF , and Vbot for operating POR circuit.
t R
V CC
Recommended conditions of t R , t OFF ,V bot
t R
10ms or below
t OFF
10ms or longer
V bot
0.3V or below
t OFF
Vbot
100ms or below
10ms or longer
0.2V or below
0
Fig.60 Rise waveform diagram
www.rohm.com
? 2009 ROHM Co., Ltd. All rights reserved.
18/40
2009.09 - Rev.D
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