The MM74HCT240 and MM74HCT244 3-STATE buffers utilize advanced silicon-gate CMOS technology and are general purpose high speed inverting and 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 low power consumption of CMOS. All three devices are TTL input compatible and have a fanout of 15 LS-TTL equivalent inputs.

MM74HCT devices are intended to interface between TTL and NMOS components and standard CMOS devices. These parts are also plug-in replacements for LS-TTL devices and can be used to reduce power consumption in existing designs.

The MM74HCT240 is an inverting buffer and the MM74HCT244 is a non-inverting buffer. Each device has two active low enables (1G and 2G), and each enable independently controls 4 buffers.

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

• Fairchild 1,000 piece Budgetary Pricing
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Product	Product status	Eco Status	Pricing*	Package type	Leads	Packing method	Package Drawing	Package Marking Convention**
MM74HCT240MTC	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: HCT240
MM74HCT240MTCX	Full Production	RoHS Compliant	$0.211	TSSOP	20	TAPE REEL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: HCT240
MM74HCT240N	Full Production	RoHS Compliant	$0.403	DIP	20	RAIL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &4 (4-Digit Date Code) &K&P (Marketing Status Code) Line 2: MM74HCT240N Line 3: MC74HCT240N
MM74HCT240SJ	Full Production	RoHS Compliant	$0.308	SOP	20	RAIL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: HCT240SJ
MM74HCT240SJX	Full Production	RoHS Compliant	$0.296	SOP	20	TAPE REEL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: HCT240SJ
MM74HCT240WM	Full Production	RoHS Compliant	$0.26	SOIC-Wide	20	RAIL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: MM74HCT Line 3: 240WM
MM74HCT240WMX	Full Production	RoHS Compliant	$0.282	SOIC-Wide	20	TAPE REEL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: MM74HCT Line 3: 240WM