These octal buffers and line drivers are 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 'LVTT240 is organized as two 4-bit buffer/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.
The SN74LVTT240 is available in TI's shrink small-outline package (DB), which provides the same I/O pin count and functionality of standard small-outline packages in less than half the printed-circuit-board area.
The SN54LVTT240 is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74LVTT240 is characterized for operation from 40°C to 85°C.
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . .0.5 V to 4.6 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 V to 7 V
Voltage range applied to any output in the high state or power-off state, VO (see Note 1) . . . .0.5 V to 7 V
Current into any output in the low state, IO: SN54LVTT240 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96 mA
SN74LVTT240 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128 mA
Current into any output in the high state, IO (see Note 2): SN54LVTT240 . . . . . . . . . . . . . . . . . . . . .48 mA
SN74LVTT240 . . . . . . . . . . . . . . . . . . . . . .64 mA
Input clamp current, IIK (VI < 0) . . . . . . . . . . . . .
Post a Buying Lead
Required Field 
