Philips N74F258AD, N74F258AN Datasheet

INTEGRATED CIRCUITS

74F258A

Quad 2-line to 1-line selector/multiplexer, inverting (3-State)

Product specification

1996 Jan 05

IC15 Data Handbook

m n r

Philips Semiconductors	Product specification

Quad 2-line to 1-line selector/multiplexer, inverting

74F258A

(3-State)

FEATURES

•Multifunction capability

•Non-inverting data path

•3-State outputs

•See 74F257A for non-inverting version

DESCRIPTION

The 74F258A has four identical 2-input multiplexers with 3-State outputs which select 4 bits of data from two sources under control of a common Select (S) input. The I0n inputs are selected when the Select input is Low and the I1n inputs are selected when the Select input is High. Data appears at the outputs in inverted form.

The 74F258A is the logical implementation of a 4-pole, 2-position switch where the position of the switch is determined by the logic level supplied to the Select input. Outputs are forced to a High impedance ``offº state when the Output Enable input (OE) is High. All but one device must be in the High impedance state to avoid currents that would exceed the maximum ratings if outputs are tied together. Design of the output signals must ensure that there is no overlap when outputs of 3-State devices are tied together.

INPUT AND OUTPUT LOADING AND FAN-OUT TABLE

PIN CONFIGURATION

		S			1		16	VCC
I0a					2		15		OE
I1a					3		14	I0d
		Y		a	4		13	I1d
I0b					5		12		Y	d
I1b					6		11	I0c
	Y		b		7		10	I1c
GND
					8		9		Y	c
						SF00815

		TYPICAL	TYPICAL SUPPLY
	TYPE	PROPAGATION
			CURRENT (TOTAL)
		DELAY
	74F258A	3.5ns	14mA

ORDERING INFORMATION

	ORDER CODE
DESCRIPTION	COMMERCIAL RANGE	PKG.
	VCC = 5V ±10%,	DWG. #
	Tamb = 0°C to +70°C
16-pin plastic DIP	N74F258AN	SOT38-4
16-pin plastic SO	N74F258AD	SOT109-1

					PINS	DESCRIPTION	74F(U.L.)	LOAD VALUE
							HIGH/LOW	HIGH/LOW
	I0n, I1n					Data inputs	1.0/1.0	20μA/0.6mA
	S					Common select input	1.0/1.0	20μA/0.6mA
						Output Enable input (active Low)	1.0/1.0	20μA/0.6mA
	OE
		a -			d	Data outputs	150/40	3.0mA/24mA
	Y			Y

NOTE:

One (1.0) FAST Unit Load is defined as: 20μA in the High state and 0.6mA in the Low state.

LOGIC SYMBOL																								LOGIC SYMBOL (IEEE/IEC)
		2			3			5		6			11		10			14		13
																									15
																										EN
			I0a			I1a		I0b			I1b		I0c			I1c		I0d		I1d					1	G1
																								2
1			S
																													MUX
																										1					4
																								3
15			OE																							1
																								5							7
																								6
				Ya					Yb					Yc					Yd
																								10							9
																								11
																								13							12
VCC=Pin 16					4					7					9			12						14
GND=Pin 8																				SF00816											SF00817

1996 Jan 05

2

853-0361 16192

Philips Semiconductors	Product specification

Quad 2-line to 1-line selector/multiplexer, inverting

74F258A

(3-State)

LOGIC DIAGRAM

OE			I0a			I1a			I0b			I1b			I0c				I1c		I0d			I1d			S
	15			2			3			5			6			11			10			14			13			1

FUNCTION TABLE

INPUTS

OUTPUT

S

I0

I1

OE

Y

H

X

X

X

Z

L

H

X

L

H

L

H

X

H

L

L

L

L

X

H

L

L

H

X

L

H

=

High voltage level

L

=

Low voltage level

X

=

Don't care

Z

= High impedance ªoffº state

	4		7		9		12
Ya		Yb		Yc		Yd
VCC=Pin 16							SF00818
GND=Pin 8

ABSOLUTE MAXIMUM RATINGS

(Operation beyond the limit set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the operating free-air temperature range.)

SYMBOL	PARAMETER	RATING	UNIT
VCC	Supply voltage	±0.5 to +7.0	V
VIN	Input voltage	±0.5 to +7.0	V
IIN	Input current	±30 to +5	mA
VOUT	Voltage applied to output in High output state	±0.5 to VCC	V
IOUT	Current applied to output in Low output state	48	mA
Tamb	Operating free-air temperature range	0 to +70	°C
Tstg	Storage temperature range	±65 to +150	°C

RECOMMENDED OPERATING CONDITIONS

	SYMBOL	PARAMETER		LIMITS		UNIT
			MIN	NOM	MAX
	VCC	Supply voltage	4.5	5.0	5.5	V
	VIH	High-level input voltage	2.0			V
	VIL	Low-level input voltage			0.8	V
	IIK	Input clamp current			±18	mA
	IOH	High-level output current			±3	mA
	IOL	Low-level output current			24	mA
	Tamb	Operating free-air temperature range	0		70	°C

1996 Jan 05

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