MC74HCT244A Series

Octal 3-State Non-Inverting Buffer/Line Driver/Line Receiver, TTL Level

Catalog

Octal 3-State Non-Inverting Buffer/Line Driver/Line Receiver, TTL Level

Part	Output Type	Number of Elements	Package / Case [y]	Package / Case	Package / Case [x]	Logic Type	Number of Bits per Element	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Voltage - Supply [Min]	Voltage - Supply [Max]	Supplier Device Package	Current - Output High, Low	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case [y]	Package / Case	Package / Case
ON Semiconductor MC74HCT244ADTR2	3-State	2	4.4 mm	20-TSSOP	0.173 in	Buffer Non-Inverting	4	125 °C	-55 °C	Surface Mount	6 mA	6 mA	4.5 V	5.5 V	20-TSSOP
ON Semiconductor MM74HCT244MTC	3-State	2	4.4 mm	20-TSSOP	0.173 in	Buffer Non-Inverting	4			Surface Mount			4.5 V	5.5 V	20-TSSOP	7.2 mA 7.2 mA	85 °C	-40 °C
ON Semiconductor MC74HCT244ADWR2G	3-State	2	0.295 in	20-SOIC		Buffer Non-Inverting	4	125 °C	-55 °C	Surface Mount	6 mA	6 mA	4.5 V	5.5 V	20-SOIC				7.5 mm
ON Semiconductor MC74HCT244AFELG	3-State	2		20-SOIC		Buffer Non-Inverting	4	125 °C	-55 °C	Surface Mount	6 mA	6 mA	4.5 V	5.5 V	SOEIAJ-20					0.209 "	5.3 mm
ON Semiconductor MC74HCT244ANG	3-State	2		20-DIP		Buffer Non-Inverting	4	125 °C	-55 °C	Through Hole	6 mA	6 mA	4.5 V	5.5 V	20-PDIP					0.3 in	7.62 mm
ON Semiconductor MM74HCT244MTC	3-State	2	4.4 mm	20-TSSOP	0.173 in	Buffer Non-Inverting	4			Surface Mount			4.5 V	5.5 V	20-TSSOP	7.2 mA 7.2 mA	85 °C	-40 °C
ON Semiconductor MC74HCT244ADTR2G	3-State	2	4.4 mm	20-TSSOP	0.173 in	Buffer Non-Inverting	4	125 °C	-55 °C	Surface Mount	6 mA	6 mA	4.5 V	5.5 V	20-TSSOP
ON Semiconductor MC74HCT244ADW	3-State	2	0.295 in	20-SOIC		Buffer Non-Inverting	4	125 °C	-55 °C	Surface Mount	6 mA	6 mA	4.5 V	5.5 V	20-SOIC				7.5 mm

Catalog

Octal 3-State Non-Inverting Buffer/Line Driver/Line Receiver, TTL Level

Key Features

• Output Drive Capability: 15 LSTTL Loads

• TTL NMOS-Compatible Input Levels

• Outputs Directly Interface to CMOS, NMOS, and TTL

• Operating Voltage Range: 4.5 to 5.5 V

• Low Input Current: 1mA

• In Compliance with the Requirements Defined by JEDEC Standard No. 7A

• Chip Complexity: 112 FETs or 28 Equivalent Gates

• Pb-Free Packages are Available

Description

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 VCCand Ground.