- 您现在的位置：买卖IC网 > Datasheet目录316 > BU9891GUL-WE2 (Rohm Semiconductor)IC EEPROM 4KBIT VCSP T/R Datasheet资料下载
参数资料
| 型号： | BU9891GUL-WE2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 14/25页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 4KBIT VCSP T/R |
| 标准包装： | 3,000 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 4K (256 x 16) |
| 速度： | 2MHz |
| 接口： | Microwire 3 线串行 |
| 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) |
BU9891GUL-W (4Kbit)
● Application
1) Method to cancel each command
○ READ
Datasheet
Start bit
1bit
Ope code
2bit
Address
8bit
Data
16bit
Cancel is available in all areas in read mode.
? Method to cancel ： cancel by CS=“L”
Figure 34. READ cancel available timing
? 27 Rise of clock
*1
○ WRITE
SK
DI
26
D1
27
D0
Enlarged figure
Start bit
Ope code
Address
*1
Data
tE/W
1bit
2bit
a
8bit
16bit
b
Figure 35. WRITE cancel available timing
a ： From start bit to 27 clock rise ＊ 1
Cancel by CS=“L”
b ： 27 clock rise and after ＊ 1
Cancellation is not available by any means. If Vcc is made OFF in this area,
designated address data is not guaranteed, therefore write once again.
And when SK clock is input continuously, cancellation is not available.
Note 1) If Vcc is made OFF in this area, designated address data is
not guaranteed, therefore write once again.
Note 2) If CS is started at the same timing as that of the SK rise,
write execution/cancel becomes unstable, therefore, it is
recommended to fail in SK=”L” area.
As for SK rise, necessary timing of tCSS/tCSH or higher.
2) At standby
○ Standby current
When CS is “L”, SK input is “L”, DI input is “H”, and even with middle electric potential, current does not increase.
○ Timing
As shown in Figure 36, when SK at standby is “H”, if CS is started, DI status may be read at the rise edge.
At standby and at power ON/OFF, when to start CS, set SK input or DI input to “L” status.
CS=SK=DI=”H”
Wrong recognition as a start bit
If CS is started when SK=”L” or DI=”L”, a start
bit is recognized correctly.
CS
Start bit input
CS
Start bit input
SK
DI
Figure 36. Wrong action timing
SK
DI
Figure 37. Normal action timing
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
14/22
TSZ02201-0R2R0G100440-1-2
3.SEP.2012 Rev.001
相关PDF资料 |
PDF描述 |
|---|---|
| BU9897GUL-WE2 | IC EEPROM SERIAL VCSP50L2 |
| 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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| BU9897GUL-W | 制造商:ROHM 制造商全称:Rohm 功能描述:Silicon Monolithic Integrated Circuit |
| BU9897GUL-W_11 | 制造商:ROHM 制造商全称:Rohm 功能描述:High Reliability Series Serial EEPROMs WL-CSP EEPROM family I2C BUS |
| BU9897GUL-WE2 | 功能描述:电可擦除可编程只读存储器 Serial 电可擦除可编程只读存储器 I2C BUS 128Kb 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 |
| 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 |
发布紧急采购，3分钟左右您将得到回复。