SN74BCT2240

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 .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  24 mA
Operating free-air temperature range: SN54BCT2240 . . . . . . . . . . . . . . . . . 55°C to 125°C
                                                              SN74BCT2240 . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C


Description

These octal buffers and line drivers SN74BCT2240 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 SN74BCT2241 and  BCT2244, these devices provide the choice of selected combinations of inverting and coninverting outputs, symmetrical active-low output-enable (OE) inputs, and complementary OE and OE inputs. These devices feature high fan-out and improved fan-in.


The  BCT2240 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.


The SN74BCT2240 outputs, which are designed to source or sink up to 12 mA, include 33-W  series resistors to reduce overshoot and undershoot.


The SN54BCT2240 is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74BCT2240 is characterized for operation from 0°C to 70°C.