The MM74HC244 is a non-inverting buffer and has two active low enables (1G and 2G); each enable independently controls 4 buffers. This device does not have Schmitt trigger inputs.

These 3-STATE buffers utilize advanced silicon-gate CMOS technology and are general purpose high speed non-inverting buffers. They possess high drive current outputs which enable high speed operation even when driving large bus capacitances. These circuits achieve speeds comparable to low power Schottky devices, while retaining the advantage of CMOS circuitry, i.e., high noise immunity, and low power consumption. All three devices have a fanout of 15 LS-TTL equivalent inputs.

All inputs are protected from damage due to static discharge by diodes to V_CC and ground.

• Fairchild 1,000 piece Budgetary Pricing
• If there is no sample button displayed at the top of the page, please contact one of the Fairchild distributors or your local sales office to obtain samples.
• Top mark packaging information for product MM74HC244 is available.

Product	Product status	Eco Status	Pricing*	Package type	Leads	Packing method	Package Drawing	Package Marking Convention**
MM74HC244MTC	Full Production	RoHS Compliant	$0.172	TSSOP	20	RAIL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: HC244
MM74HC244MTCX	Full Production	RoHS Compliant	$0.172	TSSOP	20	TAPE REEL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: HC244
MM74HC244N	Full Production	RoHS Compliant	$0.383	DIP	20	RAIL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &4 (4-Digit Date Code) &K&P (Marketing Status Code) Line 2: MM74HC244N Line 3: MC74HC244N
MM74HC244SJ	Full Production	RoHS Compliant	$0.294	SOP	20	RAIL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: HC244SJ
MM74HC244SJX	Full Production	RoHS Compliant	$0.287	SOP	20	TAPE REEL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: HC244SJ
MM74HC244WM	Full Production	RoHS Compliant	$0.282	SOIC-Wide	20	RAIL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: MM74HC Line 3: 244WM
MM74HC244WMX	Full Production	RoHS Compliant	$0.25	SOIC-Wide	20	TAPE REEL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: MM74HC Line 3: 244WM