74AHCT244 Series

Enhanced product 8-ch, 4.5-V to 5.5-V buffers with TTL-compatible CMOS inputs

Catalog(16 parts)

Part	Grade	Number of Elements▲▼	Qualification	Operating Temperature▲▼	Operating Temperature▲▼	Supplier Device Package	Current - Output High, Low▲▼	Current - Output High, Low▲▼	Number of Bits per Element▲▼	Output Type	Voltage - Supply▲▼	Voltage - Supply▲▼	Package / Case▲▼	Package / Case▲▼	Package / Case	Logic Type	Mounting Type	Package / Case▲▼
Texas Instruments SN74AHCT244IPWRQ1 Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP	Automotive	2 ul	AEC-Q100	85 °C	-40 °C	20-TSSOP	0.00800000037997961 A	0.00800000037997961 A	4 ul	3-State	5.5 V	4.5 V	0.004394200164824724 m	0.004399999976158142 m	20-TSSOP	Buffer, Non-Inverting	Surface Mount
Texas Instruments SN74AHCT244NS Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SO		2 ul		125 °C	-40 °C	20-SO	0.00800000037997961 A	0.00800000037997961 A	4 ul	3-State	5.5 V	4.5 V	0.0052999998442828655 m, 0.005308600142598152 m		20-SOIC	Buffer, Non-Inverting	Surface Mount
Texas Instruments SN74AHCT244QDWRQ1 Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC	Automotive	2 ul	AEC-Q100	125 °C	-40 °C	20-SOIC	0.00800000037997961 A	0.00800000037997961 A	4 ul	3-State	5.5 V	4.5 V	0.007493000011891127 m, 0.007499999832361937 m		20-SOIC	Buffer, Non-Inverting	Surface Mount
Texas Instruments SN74AHCT244DWR Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC		2 ul		125 °C	-40 °C	20-SOIC	0.00800000037997961 A	0.00800000037997961 A	4 ul	3-State	5.5 V	4.5 V	0.007493000011891127 m, 0.007499999832361937 m		20-SOIC	Buffer, Non-Inverting	Surface Mount
Texas Instruments SN74AHCT244DGVR Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-TVSOP		2 ul		125 °C	-40 °C	20-TVSOP	0.00800000037997961 A	0.00800000037997961 A	4 ul	3-State	5.5 V	4.5 V		0.004394200164824724 m	20-TFSOP	Buffer, Non-Inverting	Surface Mount	0.004399999976158142 m
Texas Instruments SN74AHCT244PW Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP		2 ul		125 °C	-40 °C	20-TSSOP	0.00800000037997961 A	0.00800000037997961 A	4 ul	3-State	5.5 V	4.5 V	0.004394200164824724 m	0.004399999976158142 m	20-TSSOP	Buffer, Non-Inverting	Surface Mount
Texas Instruments SN74AHCT244QPWR Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP		2 ul		125 °C	-40 °C	20-TSSOP	0.00800000037997961 A	0.00800000037997961 A	4 ul	3-State	5.5 V	4.5 V	0.004394200164824724 m	0.004399999976158142 m	20-TSSOP	Buffer, Non-Inverting	Surface Mount
Texas Instruments SN74AHCT244DBRG4 Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SSOP		2 ul		125 °C	-40 °C	20-SSOP	0.00800000037997961 A	0.00800000037997961 A	4 ul	3-State	5.5 V	4.5 V	0.0052999998442828655 m, 0.005308600142598152 m		20-SSOP	Buffer, Non-Inverting	Surface Mount
Texas Instruments SN74AHCT244N Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-PDIP		2 ul		125 °C	-40 °C	20-PDIP	0.00800000037997961 A	0.00800000037997961 A	4 ul	3-State	5.5 V	4.5 V		0.007619999814778566 m	20-DIP	Buffer, Non-Inverting	Through Hole	0.007619999814778566 m
Texas Instruments SN74AHCT244QPWRG4 Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP		2 ul		125 °C	-40 °C	20-TSSOP	0.00800000037997961 A	0.00800000037997961 A	4 ul	3-State	5.5 V	4.5 V	0.004394200164824724 m	0.004399999976158142 m	20-TSSOP	Buffer, Non-Inverting	Surface Mount
Texas Instruments SN74AHCT244MDWREP Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC		2 ul		125 °C	-55 °C	20-SOIC	0.00800000037997961 A	0.00800000037997961 A	4 ul	3-State	5.5 V	4.5 V	0.007493000011891127 m, 0.007499999832361937 m		20-SOIC	Buffer, Non-Inverting	Surface Mount
Texas Instruments SN74AHCT244PWRE4 Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP		2 ul		125 °C	-40 °C	20-TSSOP	0.00800000037997961 A	0.00800000037997961 A	4 ul	3-State	5.5 V	4.5 V	0.004394200164824724 m	0.004399999976158142 m	20-TSSOP	Buffer, Non-Inverting	Surface Mount
Texas Instruments SN74AHCT244NSR Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SO		2 ul		125 °C	-40 °C	20-SO	0.00800000037997961 A	0.00800000037997961 A	4 ul	3-State	5.5 V	4.5 V	0.0052999998442828655 m, 0.005308600142598152 m		20-SOIC	Buffer, Non-Inverting	Surface Mount
Texas Instruments SN74AHCT244PWR Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP		2 ul		125 °C	-40 °C	20-TSSOP	0.00800000037997961 A	0.00800000037997961 A	4 ul	3-State	5.5 V	4.5 V	0.004394200164824724 m	0.004399999976158142 m	20-TSSOP	Buffer, Non-Inverting	Surface Mount
Texas Instruments SN74AHCT244PWG4 Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP		2 ul		125 °C	-40 °C	20-TSSOP	0.00800000037997961 A	0.00800000037997961 A	4 ul	3-State	5.5 V	4.5 V	0.004394200164824724 m	0.004399999976158142 m	20-TSSOP	Buffer, Non-Inverting	Surface Mount
Texas Instruments SN74AHCT244QPWRQ1 Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP	Automotive	2 ul	AEC-Q100	125 °C	-40 °C	20-TSSOP	0.00800000037997961 A	0.00800000037997961 A	4 ul	3-State	5.5 V	4.5 V	0.004394200164824724 m	0.004399999976158142 m	20-TSSOP	Buffer, Non-Inverting	Surface Mount

Key Features

• Controlled BaselineOne Assembly/Test Site, One Fabrication SiteExtended Temperature Performance of –55°C to 125°CEnhanced Diminishing Manufacturing Sources (DMS) SupportEnhanced Product-Change NotificationQualification PedigreeEPIC™ (Enhanced-Performance Implanted CMOS) ProcessInputs Are TTL-Voltage CompatibleLatch-Up Performance Exceeds 250 mA Per JESD 17ESD Protection Exceeds 1000 V Per MIL-STD-833, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.EPIC is a trademark of Texas Instruments.Controlled BaselineOne Assembly/Test Site, One Fabrication SiteExtended Temperature Performance of –55°C to 125°CEnhanced Diminishing Manufacturing Sources (DMS) SupportEnhanced Product-Change NotificationQualification PedigreeEPIC™ (Enhanced-Performance Implanted CMOS) ProcessInputs Are TTL-Voltage CompatibleLatch-Up Performance Exceeds 250 mA Per JESD 17ESD Protection Exceeds 1000 V Per MIL-STD-833, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.EPIC is a trademark of Texas Instruments.

Description

This octal buffer/driver is designed specifically to improve both the performance and density of 3-state memory-address drivers, clock drivers, and bus-oriented receivers and transmitters. The SN74AHCT244 is organized as two 4-bit buffers/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. 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. This octal buffer/driver is designed specifically to improve both the performance and density of 3-state memory-address drivers, clock drivers, and bus-oriented receivers and transmitters. The SN74AHCT244 is organized as two 4-bit buffers/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. 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.