- 制造厂商:TI
- 产品类别:逻辑和电压转换
- 技术类目:缓冲器、驱动器和收发器 - 通用收发器
- 功能描述:具有三态输出的八路总线收发器和寄存器
- 点击这里打开及下载SN74ABT646的技术文档资料
- TI代理渠道,提供当日发货、严格的质量标准,满足您的目标价格
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 ´ABT646.
Output-enable () and direction-control (DIR) inputs are provided to control the transceiver functions. In the transceiver mode, data present at the high-impedance port may 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 will receive data when is low. In the isolation mode ( high), A data may be stored in one register and/or B data may be stored in the other register.
When an output function is disabled, the input function is still enabled and may be used to store and transmit data. Only one of the two buses, A or B, may be driven at a time.
To ensure the high-impedance state during power up or power down, 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.
The SN74ABT646 is available in TI's shrink small-outline package (DB), which provides the same I/O pin count and functionality of standard small-outline packages in less than half the printed-circuit-board area.
The SN54ABT646 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT646 is characterized for operation from -40°C to 85°C.
- State-of-the-Art EPIC-IIBTM BiCMOS Design Significantly Reduces Power Dissipation
- ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
- Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17
- Typical VOLP (Output Ground Bounce) < 1 V at VCC = 5 V, TA = 25°C
- High-Drive Outputs (-32-mA IOH, 64-mA IOL)
- Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages, Ceramic Chip Carriers (FK), and Plastic (NT) and Ceramic (JT) DIPs
EPIC-IIB is a trademark of Texas Instruments Incorporated.
- IOL (Max) (mA)
- 64
- IOH (Max) (mA)
- -32
- Technology Family
- ABT
- Rating
- Catalog
- Operating temperature range (C)
- -40 to 85
SN74ABT646的完整型号有:SN74ABT646DBR、SN74ABT646DW、SN74ABT646DWR、SN74ABT646PW、SN74ABT646PWR,以下是这些产品的关键参数及官网采购报价:
SN74ABT646DBR,工作温度:-40 to 85,封装:SSOP (DB)-24,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN74ABT646DBR的批量USD价格:.66(1000+)
SN74ABT646DW,工作温度:-40 to 85,封装:SOIC (DW)-24,包装数量MPQ:25个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN74ABT646DW的批量USD价格:.72(1000+)
SN74ABT646DWR,工作温度:-40 to 85,封装:SOIC (DW)-24,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN74ABT646DWR的批量USD价格:.6(1000+)
SN74ABT646PW,工作温度:-40 to 85,封装:TSSOP (PW)-24,包装数量MPQ:60个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN74ABT646PW的批量USD价格:.72(1000+)
SN74ABT646PWR,工作温度:-40 to 85,封装:TSSOP (PW)-24,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN74ABT646PWR的批量USD价格:.6(1000+)
14-24-LOGIC-EVM — 支持 14 到 24 引脚 PW、DB、D、DW、NS、DYY 和 DGV 封装的通用逻辑 EVM
该 EVM 设计用于支持采用 14 至 24 引脚 D、DW、DB、NS、PW、DYY 或 DGV 封装的任何逻辑器件。