MOTOROLA SN74LS541H, SN74LS541M, SN74LS541MEL, SN74LS541ML1, SN74LS541MR1 Datasheet

SN54/74LS540 OCTAL BUFFER/LINE DRIVER SN54/74LS541 WITH 3-STATE OUTPUTS

The SN54/74LS540 and SN54/74LS541 are octal buffers and line drivers with the same functions as the LS240 and LS241, but with pinouts on the opposite side of the package.

These device types are designed to be used as memory address drivers, clock drivers and bus-oriented transmitters/receivers. These devices are especially useful as output ports for the microprocessors, allowing ease of layout and greater PC board density.

•Hysteresis at Inputs to Improve Noise Margin

•PNP Inputs Reduce Loading

•3-State Outputs Drive Bus Lines

•Inputs and Outputs Opposite Side of Package, Allowing Easier Interface to Microprocessors

•Input Clamp Diodes Limit High-Speed Termination Effects

LOGIC AND CONNECTION DIAGRAMS DIP (TOP VIEW)

VCC			SN54 / 74LS540
20	19	18	17	16	15	14	13	12	11
1	2	3	4	5	6	7	8	9	10
									GND
VCC			SN54 / 74LS541
20	19	18	17	16	15	14	13	12	11

	1		2			3			4			5			6			7			8			9				10

GND

GUARANTEED OPERATING RANGES

OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS

LOW POWER SCHOTTKY

		J SUFFIX
		CERAMIC
	20	CASE 732-03
	1
		N SUFFIX
		PLASTIC
	20	CASE 738-03
	1
		DW SUFFIX
	20	SOIC
		CASE 751D-03
		1

ORDERING INFORMATION

SN54LSXXXJ Ceramic

SN74LSXXXN Plastic

SN74LSXXXDW SOIC

Symbol	Parameter		Min	Typ	Max	Unit
VCC	Supply Voltage	54	4.5	5.0	5.5	V
		74	4.75	5.0	5.25
TA	Operating Ambient Temperature Range	54	± 55	25	125	°C
		74	0	25	70
IOH	Output Current Ð High	54			± 12	mA
		74			± 15
IOL	Output Current Ð Low	54			12	mA
		74			24

FAST AND LS TTL DATA

5-1