- 您现在的位置：买卖IC网 > Datasheet目录316 > BU9897GUL-WE2 (Rohm Semiconductor)IC EEPROM SERIAL VCSP50L2 Datasheet资料下载
参数资料
| 型号： | BU9897GUL-WE2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 19/25页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM SERIAL VCSP50L2 |
| 标准包装： | 3,000 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 128K (16K x 8) |
| 速度： | 400kHz |
| 接口： | I²C，2 线串口 |
| 电源电压： | 1.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 12-UFBGA，CSPBGA |
| 供应商设备封装： | VCSP50L2 |
| 包装： | 带卷 (TR) |
BU9897GUL-W (128Kbit)
Datasheet
● I C BUS input / output circuit
2
○ Input (A0, A1, A2, SCL, SDA)
Figure 45. Input pin circuit diagram
○ Input/Output (SDA)
Figure 46. Input /output 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 condition 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 , Vbot
0
t OFF
Figure 47. Rise waveform diagram
Vbot
t R
10ms or below
100ms or below
t OFF
10ms or higher
10ms or higher
Vbot
0.3V or below
0.2V or below
3. Set SDA and SCL so as not to become 'Hi-Z'.
When the above conditions 1 and 2 cannot be observed, take the following countermeasures.
a) In the case when the above conditions 1 cannot be observed. When SDA becomes 'L' at power on .
→ Control SCL and SDA as shown below, to make SCL and SDA, 'H' and 'H'.
V CC
tLOW
SCL
SDA
After Vcc becomes stable
After Vcc becomes stable
tDH
tSU:DAT
tSU:DAT
Figure 48. When SCL='H' and SDA='L'
Figure 49. When SCL='H' and SDA='L'
b) In the case when the above condition 2 cannot be observed.
→ After power source becomes stable, execute software reset(Page 16).
c) In the case when the above conditions 1 and 2 cannot be observed.
→ Carry out a), and then carry out b).
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
19/22
TSZ02201-0R2R0G100500-1-2
4.SEP.2012 Rev.001
相关PDF资料 |
PDF描述 |
|---|---|
| BU99901GUZ-WE2 | IC EEPROM 32KBIT 2WIRE VCSP |
| BUK218-50DY,118 | TOPFET DUAL SWITCH D2PAK |
| BVL121200003N | BATTERY CHG UNIV 12VDC @ 1.2A |
| BVW241250003A | BATTERY CHG UNIV 24VDC @ 1.25A |
| C-14245 | RACKMOUNT INTERNAL CHASSIS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| BU99022NUX-3TR | 功能描述:IC EEPROM I2C BUS 2KB 8VSON 制造商:rohm semiconductor 系列:- 包装:剪切带（CT） 零件状态:有效 格式 - 存储器:EEPROMs - 串行 存储器类型:EEPROM 存储容量:4K （256 x 8 x 2） 速度:400kHz 接口:I2C，2 线串口 电压 - 电源:1.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C（TA） 封装/外壳:8-UFDFN 裸露焊盘 供应商器件封装:VSON008X2030 标准包装:1 |
| BU9910KV | 制造商:ROHM 制造商全称:Rohm 功能描述:Status display LCD driver for PCs with I2C Bus interface |
| BU9928FV | 制造商:未知厂家 制造商全称:未知厂家 功能描述:マルチメディアLSI |
| BU9929FV | 功能描述:IC I/O EXPANDER I2C 16B 28SSOP RoHS:是 类别:集成电路 (IC) >> 接口 - I/O 扩展器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 接口:I²C，JTAG 输入/输出数:9 中断输出:无 频率 - 时钟:400kHz 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 包括:EEPROM |
| BU9929FV-E2 | 功能描述:IC I/O EXPANDER I2C 16B 28SSOP RoHS:是 类别:集成电路 (IC) >> 接口 - I/O 扩展器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 接口:I²C，JTAG 输入/输出数:9 中断输出:无 频率 - 时钟:400kHz 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 包括:EEPROM |
发布紧急采购，3分钟左右您将得到回复。