SN74BCT244

Pinout




Specifications

Supply voltage range, V_CC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V
Input voltage range, V_I  (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V
Voltage range applied to any output in the disabled or power-off state, V_O  . . .  0.5 V to 5.5 V
Voltage range applied to any output in the high state, V_O . . . . . . . . . . . . . . . . . . . 0.5 V to V_CC 
Current into any output in the low state: SN54BCT244 . . . . . . . . . . . . . .  . . . . . . . . . . . . .  96 mA
                                                                 SN74BCT244 . . . . . . . . . . . . . . . . . . . . . . . . . . .  128 mA
Operating free-air temperature range: SN54BCT244  . . . . . . . . . . . . . . . . . . . . 55°C to 125°C
                                                              SN74BCT244 . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C

Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.


Description

These SN74BCT244 octal buffers and line drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. Taken together with the BCT240 and BCT241, these devices provide the choice of selected combinations of inverting and noninverting outputs, symmetrical OE (active-low output-enable) inputs, and complementary OE and OE  inputs.


The BCT244 is organized as two 4-bit buffers/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.


The SN54BCT244 is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74BCT244 is characterized for operation from 0°C to 70°C.