SN74BCT543中文资料八路寄存收发器数据手册TI规格书

描述 Description

The 'BCT543 octal transceiver contains two sets of D-type latches for temporary storage of data flowing in either direction. Separate latch-enable (LEAB\\ or LEBA\\) and output-enable (OEAB\\ or OEBA\\) inputs are provided for each register to permit independent control in either direction of data flow. The A-to-B enable (CEAB\\) input must be low in order to enter data from A or to output data from B. If CEAB\\ is low and LEAB\\ is low, the A-to-B latches are transparent; a subsequent low-to-high transition of LEAB\\ puts the A latches in the storage mode. With CEAB\\ and OEAB\\ both low, the 3-state B outputs are active and reflect the data present at the output of the A latches. Data flow from B to A is similar but requires using the CEBA\\, LEBA\\, and OEBA\\ inputs. The SN54BCT543 is characterized for operation over the full military temperature range of \\x9655°C to 125°C. The SN74BCT543 is characterized for operation from 0°C to 70°C.

特性 Features

• State-of-the-Art BiCMOS Design Significantly Reduces ICCZ
• 3-State True Outputs
• Back-to-Back Registers for Storage
• ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015
• Package Options Include Plastic Small-Outline Packages (DW), Ceramic Chip Carriers (FK) and Flatpacks (W), and Plastic and Ceramic 300-mil DIPs (JT, NT)