- 您现在的位置：买卖IC网 > Datasheet目录316 > BU9880GUL-WE2 (Rohm Semiconductor)IC EEPROM 64KBIT 2WIRE VCSP50L1 Datasheet资料下载
参数资料
| 型号： | BU9880GUL-WE2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 19/25页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 64KBIT 2WIRE VCSP50L1 |
| 标准包装： | 3,000 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 64K (8K 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： | 6-UFBGA，CSPBGA |
| 供应商设备封装： | VCSP50L1 |
| 包装： | 带卷 (TR) |
BU9880GUL-W (64Kbit)
Datasheet
● I 2 C BUS input / output circuit
○ 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 tR, tOFF, and Vbot for operating POR circuit.
tR
V CC
Recommended conditions of t R , t OFF , Vbot
0
tOFF
Vbot
t R
10ms or below
t OFF
10ms or higher
Vbot
0.3V or below
Figure 47.
Rise waveform diagram
100ms or below
10ms or higher
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 V CC becomes stable
After V CC 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
TSZ02201-0R2R0G100340-1-2
21.AUG.2012 Rev.001
相关PDF资料 |
PDF描述 |
|---|---|
| BU9882FV-WE2 | IC EEPROM 2KBIT 400KHZ 14SSOP |
| BU9883FV-WE2 | IC EEPROM 6KBIT 400KHZ SSOP16 |
| BU9889GUL-WE2 | IC EEPROM 8KBIT 2WIRE VCSP50L1 |
| BU9891GUL-WE2 | IC EEPROM 4KBIT VCSP T/R |
| BU9897GUL-WE2 | IC EEPROM SERIAL VCSP50L2 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| BU9881 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:I2C Serial EEPROM |
| BU9881F | 制造商:未知厂家 制造商全称:未知厂家 功能描述:I2C Serial EEPROM |
| BU9882FV-W | 制造商:ROHM 制造商全称:Rohm 功能描述:EDID Memory (For display) |
| BU9882FV-WE2 | 功能描述:电可擦除可编程只读存储器 2K BIT 128 X 8 X 2 3.3V/5V 14PIN RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| BU9882F-W | 制造商:ROHM 制造商全称:Rohm 功能描述:EDID Memory (For display) |
发布紧急采购，3分钟左右您将得到回复。