SN54BCT240, SN74BCT240
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS

SCBS004E - OCTOBER 1987 - REVISED APRIL 1994

features

• State-of-the-Art BiCMOS Design Significantly Reduces I_CCZ
• ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015
• 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
• Package Options Include Plastic Small-Outline (DW) and Shrink Small-Outline (DB) Packages, Ceramic Chip Carriers (FK) and Flatpacks (W), and Standard Plastic and Ceramic 300-mil DIPs (J, N)

description

These 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 ´BCT241 and ´BCT244, these devices provide the choice of selected combinations of inverting and noninverting outputs, symmetrical (active-low output-enable) inputs, and complementary OE and inputs. These devices feature high fan-out and improved fan-in.

The ´BCT240 is organized as two 4-bit buffers/line drivers with separate output-enable () inputs. When is low, the device passes data from the A inputs to the Y outputs. When 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.