These octal bus transceivers are designed for asynchronous communication between data buses. The devices transmit data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so the buses are effectively isolated.
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.
This device is fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down
| 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) | 3.9 |
| 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 |
| SN74ABT245BDW | ACTIVE | -40 to 85 | 1.15 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74ABT245BDWE4 | ACTIVE | -40 to 85 | 1.15 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74ABT245BDWG4 | 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 |
| SN74ABT245BDW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ABT245BDW | SN74ABT245BDW |
| SN74ABT245BDWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ABT245BDWE4 | SN74ABT245BDWE4 |
| SN74ABT245BDWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ABT245BDWG4 | SN74ABT245BDWG4 |
