Specification	SN74AHC244QPWR

Current - Output High, Low [custom]	8 mA
Current - Output High, Low [custom]	8 mA
Logic Type	Buffer, Non-Inverting
Mounting Type	Surface Mount
Number of Bits per Element	4
Number of Elements	2
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Type	3-State
Package / Case	20-TSSOP
Package / Case [x]	0.173 in
Package / Case [y]	4.4 mm
Supplier Device Package	20-TSSOP
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2 V

SN74AHC244-Q1 Series

Enhanced product 8-ch, 2-V to 5.5-V buffers with 3-state outputs

Part	Supplier Device Package	Package / Case	Package / Case [y]	Package / Case [y]	Output Type	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Voltage - Supply [Max]	Voltage - Supply [Min]	Number of Bits per Element	Logic Type	Operating Temperature [Min]	Operating Temperature [Max]	Number of Elements	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Package / Case	Package / Case [x]	Grade	Qualification
Texas Instruments SN74AHC244QDWRG4	20-SOIC	20-SOIC	0.295 in	7.5 mm	3-State	8 mA	8 mA	5.5 V	2 V	4	Buffer Non-Inverting	-40 °C	125 °C	2	Surface Mount
Texas Instruments SN74AHC244MDWREP	20-SOIC	20-SOIC	0.295 in	7.5 mm	3-State	8 mA	8 mA	5.5 V	2 V	4	Buffer Non-Inverting			2	Surface Mount	125 °C	-55 °C
Texas Instruments SN74AHC244DGVR	20-TVSOP	20-TFSOP	0.173 in	4.4 mm	3-State	8 mA	8 mA	5.5 V	2 V	4	Buffer Non-Inverting	-40 °C	125 °C	2	Surface Mount
Texas Instruments SN74AHC244N	20-PDIP	20-DIP			3-State	8 mA	8 mA	5.5 V	2 V	4	Buffer Non-Inverting	-40 °C	125 °C	2	Through Hole			7.62 mm	0.3 in
Texas Instruments SN74AHC244QPWRG4Q1	20-TSSOP	20-TSSOP	4.4 mm		3-State	8 mA	8 mA	5.5 V	2 V	4	Buffer Non-Inverting	-40 °C	125 °C	2	Surface Mount					0.173 in	Automotive	AEC-Q100
Texas Instruments SN74AHC244DWRG4	20-SOIC	20-SOIC	0.295 in	7.5 mm	3-State	8 mA	8 mA	5.5 V	2 V	4	Buffer Non-Inverting	-40 °C	125 °C	2	Surface Mount
Texas Instruments SN74AHC244QPWR	20-TSSOP	20-TSSOP	4.4 mm		3-State	8 mA	8 mA	5.5 V	2 V	4	Buffer Non-Inverting	-40 °C	125 °C	2	Surface Mount					0.173 in
Texas Instruments SN74AHC244NS	20-SO	20-SOIC			3-State	8 mA	8 mA	5.5 V	2 V	4	Buffer Non-Inverting	-40 °C	125 °C	2	Surface Mount			5.3 mm	0.209 "
Texas Instruments SN74AHC244QDWRG4Q1	20-SOIC	20-SOIC	0.295 in	7.5 mm	3-State	8 mA	8 mA	5.5 V	2 V	4	Buffer Non-Inverting	-40 °C	125 °C	2	Surface Mount						Automotive	AEC-Q100
Texas Instruments SN74AHC244PWRG4	20-TSSOP	20-TSSOP	4.4 mm		3-State	8 mA	8 mA	5.5 V	2 V	4	Buffer Non-Inverting	-40 °C	125 °C	2	Surface Mount					0.173 in

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 0.84
		10	$ 0.74
		25	$ 0.70
		100	$ 0.57
		250	$ 0.53
		500	$ 0.45
		1000	$ 0.36
	Digi-Reel®	1	$ 0.84
		10	$ 0.74
		25	$ 0.70
		100	$ 0.57
		250	$ 0.53
		500	$ 0.45
		1000	$ 0.36
	Tape & Reel (TR)	2000	$ 0.26
Texas Instruments	LARGE T&R	1	$ 0.60
		100	$ 0.41
		250	$ 0.31
		1000	$ 0.21

Description

General part information

SN74AHC244-Q1 Series

This octal buffer/driver is designed specifically to improve the performance and density of 3-state memory-address drivers, clock drivers, and bus-oriented receivers and transmitters.

The SN74AHC244 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.

Documents

Technical documentation and resources

Benefits & Issues of Migrating 5-V and 3.3-V Logic to Lower-Voltage Supplies (Rev. A)

Application note

Understanding and Interpreting Standard-Logic Data Sheets (Rev. C)

Application note

TI IBIS File Creation, Validation, and Distribution Processes

Application note

Texas Instruments Little Logic Application Report

Application note

Logic Guide (Rev. AB)

Selection guide

Semiconductor Packing Material Electrostatic Discharge (ESD) Protection

Application note

Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A)

Application note

SN74AHC244QPWR

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SN74AHC244QPWR

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Technical Specifications

SN74AHC244-Q1 Series

Pricing

Description

SN74AHC244-Q1 Series

Documents

How to Select Little Logic (Rev. A)

Live Insertion

Design Summary for WCSP Little Logic (Rev. B)

Implications of Slow or Floating CMOS Inputs (Rev. E)

LOGIC Pocket Data Book (Rev. B)

AHC/AHCT Designer's Guide February 2000 (Rev. D)

Military Advanced High-Speed CMOS Logic (AHC/AHCT) (Rev. C)

Little Logic Guide 2018 (Rev. G)

Selecting the Right Level Translation Solution (Rev. A)

SN74AHC244Q Octal Buffer/driver with 3-State Outputs datasheet (Rev. A)

Advanced High-Speed CMOS (AHC) Logic Family (Rev. C)

CMOS Power Consumption and CPD Calculation (Rev. B)

Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices

Benefits & Issues of Migrating 5-V and 3.3-V Logic to Lower-Voltage Supplies (Rev. A)

Understanding and Interpreting Standard-Logic Data Sheets (Rev. C)

TI IBIS File Creation, Validation, and Distribution Processes

Texas Instruments Little Logic Application Report

Logic Guide (Rev. AB)

Semiconductor Packing Material Electrostatic Discharge (ESD) Protection

Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A)

SN74AHC244-Q1 Series