具有 TTL 兼容型 CMOS 輸入和三態輸出的汽車類 8 通道、4.5V 至 5.5V 緩沖器
| Technology Family | ACT |
| Supply voltage (Min) (V) | 4.5 |
| Supply voltage (Max) (V) | 5.5 |
| Number of channels (#) | 8 |
| IOL (Max) (mA) | 24 |
| ICC (Max) (uA) | 40 |
| IOH (Max) (mA) | -24 |
| Input type | TTL-Compatible CMOS |
| Output type | 3-State |
| Features | Balanced outputs, Very high speed (tpd 5-10ns), Input clamp diode |
| Rating | Automotive |
- Qualified for Automotive Applications
- 4.5-V to 5.5-V VCC Operation
- Inputs Accept Voltages to 5.5 V
- Max tpd of 9 ns at 5 V
- Inputs Are TTL Compatible
This octal buffer/driver is designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.
The SN74ACT244 device is organized as two 4-bit buffers/drivers with separate output-enable (OE) inputs. When OE is low, the device passes noninverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.
To ensure the high-impedance state during power up or power down, OE shall be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
