0
ACTIVE
Technology family |
LVT |
Supply voltage (min) (V) |
2.7 |
Supply voltage (max) (V) |
3.6 |
Number of channels |
8 |
IOL (max) (mA) |
64 |
Supply current (max) (µA) |
5000 |
IOH (max) (mA) |
-32 |
Input type |
TTL-Compatible CMOS |
Output type |
3-State |
Features |
Over-voltage tolerant inputs, Partial power down (Ioff), Power up 3-state, Ultra high speed (tpd <5ns) |
Rating |
Catalog |
Operating temperature range (°C) |
-40 to 85 |
SOIC (DW)-20-131.84 mm² 12.8 x 10.3
This octal buffer and line driver is designed specifically for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.
The SN74LVT244B is organized as two 4-bit line drivers with separate output-enable (OE) inputs. When OE is low, the device passes 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 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. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
