74ABT244 Series

8-ch, 4.5-V to 5.5-V buffers with TTL-compatible CMOS inputs and 3-state outputs

Catalog(11 parts)

Part	Current - Output High, Low▲▼	Supplier Device Package	Number of Elements▲▼	Mounting Type	Output Type	Package / Case▲▼	Package / Case	Logic Type	Number of Bits per Element▲▼	Operating Temperature▲▼	Operating Temperature▲▼	Voltage - Supply▲▼	Voltage - Supply▲▼	Package / Case▲▼	Current - Output High, Low▲▼	Current - Output High, Low▲▼
Texas Instruments SN74ABT244ADWR Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC	0.03200000151991844 A, 0.06400000303983688 A	20-SOIC	2 ul	Surface Mount	3-State	0.007493000011891127 m, 0.007499999832361937 m	20-SOIC	Buffer, Non-Inverting	4 ul	85 °C	-40 °C	5.5 V	4.5 V
Texas Instruments SN74ABT244ADBRG4 Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SSOP	0.03200000151991844 A, 0.06400000303983688 A	20-SSOP	2 ul	Surface Mount	3-State	0.0052999998442828655 m, 0.005308600142598152 m	20-SSOP	Buffer, Non-Inverting	4 ul	85 °C	-40 °C	5.5 V	4.5 V
Texas Instruments SN74ABT244ADBR Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SSOP	0.03200000151991844 A, 0.06400000303983688 A	20-SSOP	2 ul	Surface Mount	3-State	0.0052999998442828655 m, 0.005308600142598152 m	20-SSOP	Buffer, Non-Inverting	4 ul	85 °C	-40 °C	5.5 V	4.5 V
Texas Instruments SN74ABT244APWG4 Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP	0.03200000151991844 A, 0.06400000303983688 A	20-TSSOP	2 ul	Surface Mount	3-State	0.004394200164824724 m	20-TSSOP	Buffer, Non-Inverting	4 ul	85 °C	-40 °C	5.5 V	4.5 V	0.004399999976158142 m
Texas Instruments SN74ABT244AMDBREP Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SSOP		20-SSOP	2 ul	Surface Mount	3-State	0.0052999998442828655 m, 0.005308600142598152 m	20-SSOP	Buffer, Non-Inverting	4 ul	125 °C	-55 °C	5.5 V	4.5 V		0.024000000208616257 A	0.04800000041723251 A
Texas Instruments SN74ABT244ADB Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SSOP	0.03200000151991844 A, 0.06400000303983688 A	20-SSOP	2 ul	Surface Mount	3-State	0.0052999998442828655 m, 0.005308600142598152 m	20-SSOP	Buffer, Non-Inverting	4 ul	85 °C	-40 °C	5.5 V	4.5 V
Texas Instruments SN74ABT244APWR Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP	0.03200000151991844 A, 0.06400000303983688 A	20-TSSOP	2 ul	Surface Mount	3-State	0.004394200164824724 m	20-TSSOP	Buffer, Non-Inverting	4 ul	85 °C	-40 °C	5.5 V	4.5 V	0.004399999976158142 m
Texas Instruments SN74ABT244ADWRG4 Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC	0.03200000151991844 A, 0.06400000303983688 A	20-SOIC	2 ul	Surface Mount	3-State	0.007493000011891127 m, 0.007499999832361937 m	20-SOIC	Buffer, Non-Inverting	4 ul	85 °C	-40 °C	5.5 V	4.5 V
Texas Instruments SN74ABT244ADW Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC	0.03200000151991844 A, 0.06400000303983688 A	20-SOIC	2 ul	Surface Mount	3-State	0.007493000011891127 m, 0.007499999832361937 m	20-SOIC	Buffer, Non-Inverting	4 ul	85 °C	-40 °C	5.5 V	4.5 V
Texas Instruments SN74ABT244ANSRG4 Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SO	0.03200000151991844 A, 0.06400000303983688 A	20-SO	2 ul	Surface Mount	3-State	0.0052999998442828655 m, 0.005308600142598152 m	20-SOIC	Buffer, Non-Inverting	4 ul	85 °C	-40 °C	5.5 V	4.5 V
Texas Instruments SN74ABT244APW Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP	0.03200000151991844 A, 0.06400000303983688 A	20-TSSOP	2 ul	Surface Mount	3-State	0.004394200164824724 m	20-TSSOP	Buffer, Non-Inverting	4 ul	85 °C	-40 °C	5.5 V	4.5 V	0.004399999976158142 m

Key Features

• State-of-the-Art EPIC-IIB™ BiCMOS Design Significantly Reduces Power DissipationLatch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)Typical VOLP(Output Ground Bounce) < 1 V at VCC= 5 V, TA= 25°CHigh-Drive Outputs (-32-mA IOH, 64-mA IOL)Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages, Ceramic Chip Carriers (FK), Plastic (N) and Ceramic (J) DIPs, and Ceramic Flat (W) PackageEPIC-IIB is a trademark of Texas Instruments.State-of-the-Art EPIC-IIB™ BiCMOS Design Significantly Reduces Power DissipationLatch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)Typical VOLP(Output Ground Bounce) < 1 V at VCC= 5 V, TA= 25°CHigh-Drive Outputs (-32-mA IOH, 64-mA IOL)Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages, Ceramic Chip Carriers (FK), Plastic (N) and Ceramic (J) DIPs, and Ceramic Flat (W) PackageEPIC-IIB is a trademark of Texas Instruments.

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. Together with the SN54ABT240, SN74ABT240A, SN54ABT241, and SN74ABT241A, 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. The SN54ABT244 and SN74ABT244A are organized as two 4-bit buffers/line drivers with separate OE\ inputs. When OE\ is low, the devices pass noninverted data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state. 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 SN54ABT244 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT244A is characterized for operation from -40°C to 85°C. 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. Together with the SN54ABT240, SN74ABT240A, SN54ABT241, and SN74ABT241A, 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. The SN54ABT244 and SN74ABT244A are organized as two 4-bit buffers/line drivers with separate OE\ inputs. When OE\ is low, the devices pass noninverted data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state. 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 SN54ABT244 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT244A is characterized for operation from -40°C to 85°C.