MC74HC540A Series

Octal 3-State Inverting Buffer/Line Driver/Line Receiver

Catalog

Octal 3-State Inverting Buffer/Line Driver/Line Receiver

Part	Voltage - Supply [Min]	Voltage - Supply [Max]	Package / Case	Package / Case [y]	Package / Case [y]	Number of Bits per Element	Operating Temperature [Max]	Operating Temperature [Min]	Output Type	Mounting Type	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Supplier Device Package	Number of Elements	Logic Type	Package / Case	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case [x]
ON Semiconductor MC74HC540ADWG	2 V	6 V	20-SOIC	0.295 in	7.5 mm	8	125 °C	-55 °C	3-State	Surface Mount	7.8 mA	7.8 mA	20-SOIC	1	Buffer Inverting
ON Semiconductor MC74HC540AN	2 V	6 V	20-DIP			8	125 °C	-55 °C	3-State	Through Hole	7.8 mA	7.8 mA	20-PDIP	1	Buffer Inverting	7.62 mm	0.3 in
ON Semiconductor MC74HC540AFELG	2 V	6 V	20-SOIC			8	125 °C	-55 °C	3-State	Surface Mount	7.8 mA	7.8 mA	SOEIAJ-20	1	Buffer Inverting	5.3 mm	0.209 "
ON Semiconductor MM74HC540WM	2 V	6 V	20-SOIC	0.295 in	7.5 mm	8			3-State	Surface Mount	7.8 mA	7.8 mA	20-SOIC	1	Buffer Inverting			85 °C	-40 °C
ON Semiconductor MM74HC540WMX	2 V	6 V	20-SOIC	0.295 in	7.5 mm	8			3-State	Surface Mount	7.8 mA	7.8 mA	20-SOIC	1	Buffer Inverting			85 °C	-40 °C
ON Semiconductor MM74HC540MTCX	2 V	6 V	20-TSSOP	4.4 mm		8			3-State	Surface Mount	7.8 mA	7.8 mA	20-TSSOP	1	Buffer Inverting			85 °C	-40 °C	0.173 in
ON Semiconductor 74HC540DTR2G	2 V	6 V	20-TSSOP	4.4 mm		8	125 °C	-55 °C	3-State	Surface Mount	7.8 mA	7.8 mA	20-TSSOP	1	Buffer Inverting					0.173 in
ON Semiconductor MC74HC540AFG	2 V	6 V	20-SOIC			8	125 °C	-55 °C	3-State	Surface Mount	7.8 mA	7.8 mA	SOEIAJ-20	1	Buffer Inverting	5.3 mm	0.209 "
ON Semiconductor MC74HC540ADWR2G	2 V	6 V	20-SOIC	0.295 in	7.5 mm	8	125 °C	-55 °C	3-State	Surface Mount	7.8 mA	7.8 mA	20-SOIC	1	Buffer Inverting
ON Semiconductor MM74HC540MTC	2 V	6 V	20-TSSOP	4.4 mm		8			3-State	Surface Mount	7.8 mA	7.8 mA	20-TSSOP	1	Buffer Inverting			85 °C	-40 °C	0.173 in

Catalog

Octal 3-State Inverting Buffer/Line Driver/Line Receiver

Key Features

• Output Drive Capability: 15 LSTTL Loads

• Outputs Directly Interface to CMOS, NMOS and TTL

• Operating Voltage Range: 2 to 6V

• Low Input Current: 1mA

• High Noise Immunity Characteristic of CMOS Devices

• In Compliance With the JEDEC Standard No. 7A Requirements

• Chip Complexity: 124 FETs or 31 Equivalent Gates

• Pb-Free Packages are Available*

Description

The MM74HC540 and MM74HC541 3-STATE buffers utilize advanced silicon-gate CMOS technology. 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. Both devices have a fanout of 15 LS-TTL equivalent inputs. The MM74HC540 is an inverting buffer and the MM74HC541 is a non-inverting buffer. The 3-STATE control gate operates as a two-input NOR such that if either G1# or G2# are HIGH, all eight outputs are in the high-impedance state. In order to enhance PC board layout, the MM74HC540 and MM74HC541 offers a pinout having inputs and outputs on opposite sides of the package. All inputs are protected from damage due to static discharge by diodes to VCCand ground.