Specification	SN74AHCT244DWR

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-SOIC
Package / Case [y]	0.295 in
Package / Case [y]	7.5 mm
Supplier Device Package	20-SOIC
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.5 V

SN74AHCT244-EP Series

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

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	$ 0.82
		10	$ 0.51
		25	$ 0.42
		100	$ 0.33
		250	$ 0.28
		500	$ 0.25
		1000	$ 0.23
	Digi-Reel®	1	$ 0.82
		10	$ 0.51
		25	$ 0.42
		100	$ 0.33
		250	$ 0.28
		500	$ 0.25
		1000	$ 0.23
	Tape & Reel (TR)	2000	$ 0.21
		4000	$ 0.19
		6000	$ 0.18
		10000	$ 0.17
		14000	$ 0.17
		20000	$ 0.16
		50000	$ 0.15
Texas Instruments	LARGE T&R	1	$ 0.29
		100	$ 0.20
		250	$ 0.15
		1000	$ 0.10

Description

General part information

SN74AHCT244-EP Series

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.