SN74AHCT244-EP Series

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

Catalog

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

Part	Number of Elements	Output Type	Supplier Device Package	Qualification	Logic Type	Operating Temperature [Max]	Operating Temperature [Min]	Number of Bits per Element	Mounting Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Grade	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Package / Case [y]	Package / Case	Package / Case [x]	Package / Case	Package / Case	Package / Case [y]	Operating Temperature [Max]	Operating Temperature [Min]
Texas Instruments SN74AHCT244IPWRQ1	2	3-State	20-TSSOP	AEC-Q100	Buffer Non-Inverting	85 °C	-40 °C	4	Surface Mount	4.5 V	5.5 V	Automotive	8 mA	8 mA	4.4 mm	20-TSSOP	0.173 in
Texas Instruments SN74AHCT244NS	2	3-State	20-SO		Buffer Non-Inverting	125 °C	-40 °C	4	Surface Mount	4.5 V	5.5 V		8 mA	8 mA		20-SOIC		0.209 "	5.3 mm
Texas Instruments SN74AHCT244DWR	2	3-State	20-SOIC		Buffer Non-Inverting	125 °C	-40 °C	4	Surface Mount	4.5 V	5.5 V		8 mA	8 mA	0.295 in	20-SOIC				7.5 mm
Texas Instruments SN74AHCT244DGVR	2	3-State	20-TVSOP		Buffer Non-Inverting	125 °C	-40 °C	4	Surface Mount	4.5 V	5.5 V		8 mA	8 mA	0.173 in	20-TFSOP				4.4 mm
Texas Instruments SN74AHCT244QPWR	2	3-State	20-TSSOP		Buffer Non-Inverting	125 °C	-40 °C	4	Surface Mount	4.5 V	5.5 V		8 mA	8 mA	4.4 mm	20-TSSOP	0.173 in
Texas Instruments SN74AHCT244DBRG4	2	3-State	20-SSOP		Buffer Non-Inverting	125 °C	-40 °C	4	Surface Mount	4.5 V	5.5 V		8 mA	8 mA		20-SSOP
Texas Instruments SN74AHCT244N	2	3-State	20-PDIP		Buffer Non-Inverting	125 °C	-40 °C	4	Through Hole	4.5 V	5.5 V		8 mA	8 mA		20-DIP		0.3 in	7.62 mm
Texas Instruments CAHCT244IPWRG4Q1	2	3-State	20-TSSOP	AEC-Q100	Buffer Non-Inverting	85 °C	-40 °C	4	Surface Mount	4.5 V	5.5 V	Automotive	8 mA	8 mA	4.4 mm	20-TSSOP	0.173 in
Texas Instruments SN74AHCT244MDWREP	2	3-State	20-SOIC		Buffer Non-Inverting			4	Surface Mount	4.5 V	5.5 V		8 mA	8 mA	0.295 in	20-SOIC				7.5 mm	125 °C	-55 °C
Texas Instruments SN74AHCT244PWRE4	2	3-State	20-TSSOP		Buffer Non-Inverting	125 °C	-40 °C	4	Surface Mount	4.5 V	5.5 V		8 mA	8 mA	4.4 mm	20-TSSOP	0.173 in

Catalog

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

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.