MC74F258A Просмотр технического описания (PDF) - Motorola => Freescale
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MC74F258A Datasheet PDF : 3 Pages
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QUAD 2-INPUT MULTIPLEXER
WITH 3-STATE OUTPUTS
The MC74F258A is a quad 2-input multiplexer with 3-state outputs. Four
bits of data from two sources can be selected using a common Data Select
input. The four outputs present the selected data in the complement (inverted)
form. The outputs may be switched to a high impedance state with a HIGH
on the common Output Enable (OE) input, allowing the outputs to interface di-
rectly with bus-oriented systems.
• Multiplexer Expansion by Tying Outputs Together
• Inverting 3-State Outputs
• AC Enhanced Version of the F258
CONNECTION DIAGRAM (TOP VIEW)
VCC OE I0c I1c Zc I0d I1d Zd
16 15 14 13 12 11 10 9
MC74F258A
QUAD 2-INPUT MULTIPLEXER
WITH 3-STATE OUTPUTS
FAST™ SCHOTTKY TTL
16
1
J SUFFIX
CERAMIC
CASE 620-09
12345678
S I0a I1a Za I0b I1b Zb GND
LOGIC DIAGRAM
OE
I0a I1a I0b I1b I0C I1C I0D I1C S
Za
Zb
Zc
Zd
16
1
N SUFFIX
PLASTIC
CASE 648-08
16
1
D SUFFIX
SOIC
CASE 751B-03
ORDERING INFORMATION
MC54FXXXAJ Ceramic
MC74FXXXAN Plastic
MC74FXXXAD SOIC
LOGIC SYMBOL
1
S
OE
15
4
Za
I0a
2
I1a
3
7
Zb
I0b
5
I1b
6
12
Zc
I0c
14
I1c
13
9
Zd
VCC = PIN 16
GND = PIN 8
I0d
11
I1d
10
FAST AND LS TTL DATA
4-130
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