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SN74ABT646ADBR

SN74ABT646ADBR

TI(德州仪器) 电子元器件分类

八路总线收发器和寄存器 OCTAL BUS TRANSCEIVERS AND REGISTERS

These devices consist of bus-transceiver circuits, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers. Data on the A or B bus is clocked into the registers on the low-to-high transition of the appropriate clock CLKAB or CLKBA input. Figure 1 illustrates the four fundamental bus-management functions that can be performed with the ’ABT646A devices.

Output-enable OE\\\\ and direction-control DIR inputs are provided to control the transceiver functions. In the transceiver mode, data present at the high-impedance port can be stored in either register or in both.

The select-control SAB and SBA inputs can multiplex stored and real-time transparent mode data. The direction control DIR determines which bus receives data when OE\ is low. In the isolation mode OE\ high, A data can be stored in one register and/or B data can be stored in the other register.

When an output function is disabled, the input function still is enabled and can be used to store and transmit data. Only one of the two buses, A or B, can be driven at a time.

These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down.

To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

SN74ABT646ADBR中文资料参数规格
技术参数

电源电压DC 4.50V ~ 5.50V

输出接口数 8

电路数 8

通道数 8

位数 8

电压波节 5.00 V

工作温度Max 85 ℃

工作温度Min -40 ℃

电源电压 4.5V ~ 5.5V

电源电压Max 5.5 V

电源电压Min 4.5 V

封装参数

安装方式 Surface Mount

引脚数 24

封装 SSOP-24

外形尺寸

封装 SSOP-24

物理参数

工作温度 -40℃ ~ 85℃ TA

其他

产品生命周期 Active

包装方式 Tape & Reel TR

符合标准

RoHS标准 RoHS Compliant

含铅标准 Lead Free

海关信息

ECCN代码 EAR99

SN74ABT646ADBR引脚图与封装图
SN74ABT646ADBR引脚图

SN74ABT646ADBR引脚图

SN74ABT646ADBR封装图

SN74ABT646ADBR封装图

SN74ABT646ADBR封装焊盘图

SN74ABT646ADBR封装焊盘图

在线购买SN74ABT646ADBR
型号 制造商 描述 购买
SN74ABT646ADBR TI 德州仪器 八路总线收发器和寄存器 OCTAL BUS TRANSCEIVERS AND REGISTERS 搜索库存
替代型号SN74ABT646ADBR
图片 型号/品牌/封装 代替类型 描述 替代型号对比

型号: SN74ABT646ADBR

品牌: TI 德州仪器

封装: SSOP 8Bit 4.5V to 5.5V 24Pin

当前型号

八路总线收发器和寄存器 OCTAL BUS TRANSCEIVERS AND REGISTERS

当前型号

型号: SN74ABT646ADW

品牌: 德州仪器

封装: SOIC-24 8Bit 4.5V to 5.5V 24Pin

完全替代

八路总线收发器和寄存器具有三态OUPUTS OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUPUTS

SN74ABT646ADBR和SN74ABT646ADW的区别

型号: SN74ABT646ADWR

品牌: 德州仪器

封装: 24SOIC 8Bit 4.5V to 5.5V 24Pin

完全替代

八路总线收发器和寄存器 OCTAL BUS TRANSCEIVERS AND REGISTERS

SN74ABT646ADBR和SN74ABT646ADWR的区别

型号: SN74ABT646ANT

品牌: 德州仪器

封装: DIP 8Bit 4.5V to 5.5V 24Pin

完全替代

八路总线收发器和寄存器具有三态OUPUTS OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUPUTS

SN74ABT646ADBR和SN74ABT646ANT的区别