SN74BCT2244 Series

8-ch, 4.5-V to 5.5-V buffers with 3-state outputs

Catalog

8-ch, 4.5-V to 5.5-V buffers with 3-state outputs

Part	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Logic Type	Mounting Type	Operating Temperature [Max]	Package / Case	Package / Case	Package / Case	Number of Bits per Element	Output Type	Number of Elements	Supplier Device Package	Voltage - Supply [Min]	Voltage - Supply [Max]	Package / Case [y]	Package / Case [y]
Texas Instruments SN74BCT2244NSR	12 mA	12 mA	Buffer Non-Inverting	Surface Mount	70 °C	20-SOIC	0.209 "	5.3 mm	4	3-State	2	20-SO	4.5 V	5.5 V
Texas Instruments SN74BCT2244DWR	12 mA	12 mA	Buffer Non-Inverting	Surface Mount	70 °C	20-SOIC			4	3-State	2	20-SOIC	4.5 V	5.5 V	0.295 in	7.5 mm
Texas Instruments SN74BCT2244N	12 mA	12 mA	Buffer Non-Inverting	Through Hole	70 °C	20-DIP	0.3 in	7.62 mm	4	3-State	2	20-PDIP	4.5 V	5.5 V
Texas Instruments SN74BCT2244DW	12 mA	12 mA	Buffer Non-Inverting	Surface Mount	70 °C	20-SOIC			4	3-State	2	20-SOIC	4.5 V	5.5 V	0.295 in	7.5 mm

Catalog

8-ch, 4.5-V to 5.5-V buffers with 3-state outputs

Key Features

• Operating Voltage Range of 4.5 V to 5.5 VState-of-the-Art BiCMOS Design Significantly Reduces ICCZOutput Ports Have Equivalent 33-SeriesResistors, So No External Resistors Are Required3-State Outputs Drive Bus Lines or Buffer Memory Address RegistersOperating Voltage Range of 4.5 V to 5.5 VState-of-the-Art BiCMOS Design Significantly Reduces ICCZOutput Ports Have Equivalent 33-SeriesResistors, So No External Resistors Are Required3-State Outputs Drive Bus Lines or Buffer Memory Address Registers

Description

The ’BCT2244 devices are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. Together with the ’BCT2240 devices and SN74BCT2241, these devices provide the choice of selected combinations of inverting and noninverting outputs, symmetrical active-low output-enable (OE)\ inputs, and complementary OE and OE\ inputs. These devices feature high fan-out and improved fan-in. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The outputs, which are designed to source or sink up to 12 mA, include 33-series resistors to reduce overshoot and undershoot. The ’BCT2244 devices are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. Together with the ’BCT2240 devices and SN74BCT2241, these devices provide the choice of selected combinations of inverting and noninverting outputs, symmetrical active-low output-enable (OE)\ inputs, and complementary OE and OE\ inputs. These devices feature high fan-out and improved fan-in. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The outputs, which are designed to source or sink up to 12 mA, include 33-series resistors to reduce overshoot and undershoot.