The SN54ABT623A and SN74ABT623 bus transceivers are designed for asynchronous communication between data buses. The control-function implementation allows for maximum flexibility in timing. The SN54ABT623A and SN74ABT623 provide true data at their outputs.
These devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic levels at the output-enable (OEAB and OEBA\) inputs.
The output-enable inputs can be used to disable the device so that the buses are effectively isolated. The dual-enable configuration gives the transceivers the capability of storing data by simultaneously enabling OEAB and OEBA\. Each output reinforces its input in this configuration. When both OEAB and OEBA\ are enabled and all other data sources to the two sets of bus lines are at high impedance, both sets of bus lines (16 total) remain at their last states.
| CY74FCT245AT | |
| Voltage Nodes(V) | 5 |
| Vcc range(V) | 4.5 to 5.5 |
| Input Level | TTL |
| Output Level | TTL |
| Output Drive(mA) | -32/64 |
| No. of Outputs | 8 |
| Logic | True |
| Static Current | 15.12 |
| tpd max(ns) | 4.6 |
| Rating | Catalog |
| Technology Family | ABT |
| 器件 | 状态 | 温度 | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| SN74ABT623DW | ACTIVE | -40 to 85 | 1.15 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74ABT623DWE4 | ACTIVE | -40 to 85 | 1.15 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74ABT623DWG4 | ACTIVE | -40 to 85 | 1.15 | 1ku | SOIC (DW) | 20 | 25 | TUBE |
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| SN74ABT623DW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ABT623DW | SN74ABT623DW |
| SN74ABT623DWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ABT623DWE4 | SN74ABT623DWE4 |
| SN74ABT623DWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ABT623DWG4 | SN74ABT623DWG4 |
