SN54BCT240

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
Input clamp current, I_IK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA
Current into any output in the low state: SN54BCT240. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
SN74BCT240 .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA
Operating free-air temperature range: SN54BCT240 . . . . . . . . . . . . . . . . . . . . . . . . 55°C to 125°C
SN74BCT240 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 octal buffers and line drivers of SN54BCT240 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 BCT241 and BCT244, SN54BCT240 provides the choice of selected combinations of inverting and noninverting outputs, symmetrical OE (active-low output-enable) inputs, and complementary OE and OE inputs. These devices feature high fan-out and improved fan-in.


The SN54BCT240 is organized as two 4-bit buffers/line drivers with separate output-enable (OE) inputs. When OE is low, the SN54BCT240 passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.


The SN54BCT240 is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74BCT240 is characterized for operation from 0°C to 70°C.