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BUF08821BIPWPR

更新时间： 2024-01-18 08:46:35
品牌 Logo 应用领域
德州仪器 - TI 晶体时钟发生器微控制器和处理器外围集成电路光电二极管
页数 文件大小 规格书
27页 767K
描述
Programmable Gamma-Voltage Generator and VCOM Calibrator with Integrated Two-Bank Memory

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BUF08821BIPWPR 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：TSSOP
包装说明：HTSSOP,针数：20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：1.73其他特性：IT ALSO REQUIRES 2 TO 5.5V DIGITAL SUPPLY
JESD-30 代码：R-PDSO-G20JESD-609代码：e4
长度：6.5 mm湿度敏感等级：2
端子数量：20最高工作温度：95 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：HTSSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
主时钟/晶体标称频率：3.4 MHz认证状态：Not Qualified
座面最大高度：1.2 mm最大压摆率：7 mA
最大供电电压：20 V最小供电电压：9 V
标称供电电压：18 V表面贴装：YES
技术：CMOS温度等级：INDUSTRIAL
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4.4 mm
uPs/uCs/外围集成电路类型：CLOCK GENERATOR, VIDEOBase Number Matches：1

BUF08821BIPWPR 数据手册

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BUF08821  
www.ti.com ................................................................................................................................................. SBOS438C –AUGUST 2008–REVISED AUGUST 2009  
Programmable Gamma-Voltage Generator and  
VCOM Calibrator with Integrated Two-Bank Memory  
Check for Samples: BUF08821  
1
FEATURES  
DESCRIPTION  
234  
•
10-BIT RESOLUTION  
The BUF08821 offers eight programmable gamma  
channels plus one programmable VCOM channel.  
•
•
•
•
8-CHANNEL P-GAMMA  
1-CHANNEL P-VCOM  
The final gamma and VCOM values can be stored in  
the on-chip, nonvolatile memory. To allow for  
programming errors or liquid crystal display (LCD)  
panel rework, the BUF08821 supports up to 16 write  
operations to the on-chip memory.  
16x REWRITABLE NONVOLATILE MEMORY  
TWO INDEPENDENT PIN-SELECTABLE  
MEMORY BANKS  
•
RAIL-TO-RAIL OUTPUT:  
300mV Minimum Swing-to-Rail (10mA)  
> 300mA Maximum IOUT  
The BUF08821 has two separate memory banks,  
allowing simultaneous storage of two different gamma  
curves to facilitate switching between gamma curves.  
•
•
•
•
LOW SUPPLY CURRENT  
All gamma and VCOM channels offer a rail-to-rail  
output that typically swings to within 150mV of either  
supply rail with a 10mA load. All channels are  
programmed using an I2C interface that supports  
standard operations up to 400kHz and high-speed  
data transfers up to 3.4MHz.  
SUPPLY VOLTAGE: 9V to 20V  
DIGITAL SUPPLY: 2V to 5.5V  
I2C ™ INTERFACE: Supports 400kHz and  
3.4MHz Clock Frequency  
APPLICATIONS  
The BUF08821 is manufactured using Texas  
Instruments’ proprietary, state-of-the-art, high-voltage  
CMOS process. This process offers very dense logic  
and HIGH supply voltage operation of up to 20V. The  
BUF08821 is offered in a HTSSOP-20 PowerPAD ™  
package. It is specified from –40°C to +85°C.  
•
TFT-LCD REFERENCE DRIVERS  
Analog  
Digital  
BKSEL  
(9V to 20V)  
(2.0V to 5.5V)  
1
RELATED PRODUCTS  
OUT1  
OUT2  
FEATURES  
PRODUCT  
BUF22821  
BUF16821  
BUF12800  
BUF20800  
BUF20820  
BUF01900  
BUF11704  
BUF11705  
22-Channel Gamma Correction Buffer  
16-Channel Gamma Correction Buffer  
12-Channel Gamma Correction Buffer  
18-/20-Channel Programmable Buffer, 10-Bit, VCOM  
18-/20-Channel Programmable Buffer with Memory  
Programmable VCOM Driver  
OUT7  
OUT8  
18V Supply, Traditional Gamma Buffers  
22V Supply, Traditional Gamma Buffers  
VCOM  
SDA  
SCL  
Control IF  
BUF08821  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
3
4
PowerPAD is a trademark of Texas Instruments, Incorporated.  
I2C is a trademark of NXP Semiconductors.  
All other trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2008–2009, Texas Instruments Incorporated  
 
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