The \x92FCT646T devices consist of a bus transceiver circuit with 3-state, 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 as the appropriate clock pin goes to a high logic level. Output-enable (G\) and direction (DIR) inputs control the transceiver function. In the transceiver mode,data present at the high-impedance port can be stored in either the A or B register, or in both. Select controls (SAB, SBA) can multiplex stored and real-time (transparent mode) data. DIR determines which bus receives data when G\ is low. In the isolation mode (G\ is high), A data can be stored in the B register and/or B data can be stored in the A register.

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

• Function, Pinout, and Drive Compatible With FCT and F Logic
• Reduced VOH (Typically = 3.3 V) Versions of Equivalent FCT Functions
• Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics
• Ioff Supports Partial-Power-Down Mode Operation
• Matched Rise and Fall Times
• Fully Compatible With TTL Input and Output Logic Levels
• ESD Protection Exceeds JESD 22
  • 2000-V Human-Body Model (A114-A)
  • 200-V Machine Model (A115-A)
  • 1000-V Charged-Device Model (C101)
• Independent Register for A and B Buses
• CY54FCT646T
  • 48-mA Output Sink Current
  • 12-mA Output Source Current
• CY74FCT646T
  • 64-mA Output Sink Current
  • 32-mA Output Source Current
• 3-State Outputs

• IOL (Max) (mA)
• 48
• IOH (Max) (mA)
• -12
• Technology Family
• FCT
• Rating
• Military
• Operating temperature range (C)
• -55 to 125

CY54FCT646T的完整型号有：5962-9222301M3A、5962-9222303M3A、5962-9222303MLA、5962-9222305M3A、CY54FCT646ATDMB、CY54FCT646ATLMB、CY54FCT646CTLMB，以下是这些产品的关键参数及官网采购报价：

5962-9222301M3A，工作温度：-55 to 125，封装：LCCC (FK)-28，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-9222301M3A的批量USD价格：15.742（1000+）

5962-9222303M3A，工作温度：-55 to 125，封装：LCCC (FK)-28，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-9222303M3A的批量USD价格：19.001（1000+）

5962-9222303MLA，工作温度：-55 to 125，封装：CDIP (JT)-24，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-9222303MLA的批量USD价格：23.179（1000+）

5962-9222305M3A，工作温度：-55 to 125，封装：LCCC (FK)-28，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-9222305M3A的批量USD价格：26.102（1000+）

CY54FCT646ATDMB，工作温度：-55 to 125，封装：CDIP (JT)-24，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网CY54FCT646ATDMB的批量USD价格：23.179（1000+）

CY54FCT646ATLMB，工作温度：-55 to 125，封装：LCCC (FK)-28，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网CY54FCT646ATLMB的批量USD价格：19.001（1000+）

CY54FCT646CTLMB，工作温度：-55 to 125，封装：LCCC (FK)-28，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网CY54FCT646CTLMB的批量USD价格：26.102（1000+）