SN64BCT2244
OCTAL BUFFER AND LINE/MOS DRIVER
WITH 3-STATE OUTPUTS

SCBS078A - D3529, JUNE 1990 - DECEMBER 1993

features

• State-of-the-Art BiCMOS Design Significantly Reduces I_CCZ
• ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
• Output Ports Have Equivalent 33- Series Resistors, So No External Resistors Are Required
• High-Impedance State During Power-Up and Power-Down
• 3-State Buffer-Type Outputs Drive Bus Lines Directly
• Package Options Include Plastic Small-Outline (DW) Packages and Standard Plastic 300-mil DIPs (N)

description

The SN64BCT2244 is a noninverting octal buffer and line/MOS driver 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 SN64BCT2240 and SN64BCT2241, 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.

When the output-enable (1 and 2) inputs are low, the device transmits data from the A inputs to the Y outputs. When 1 and 2 are high, the outputs are in the high-impedance state. Output-enable 1 affects only the 1Y outputs; output-enable 2 affects only the 2Y outputs.

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

The SN64BCT2244 is characterized for operation from -40°C to 85°C and 0°C to 70°C.