ITT - Index of

_
I mm
ITT9322
Quad Two-Input Multiplexer
..L..L ____ _
SEMICONDUCTORS
Package: Dual In-Line and Flat Pack
MSI QUAD TWO-INPUT
MULTIPLEXER
• Multifunction Capability
LOGIC SYMBOL
15 2 3 5 6 14 13 11 10
G
20 ns Through Delay
• On-Chip Select Logic Decoding
S
9322 QUAD 2 INPUT MULTIPLEXER
Zb
Zd
• Fully Buffered Outputs
• The Inputl Output Characteristics Provide
Easy Interfacing with ITT DTL930,
ITT TTL 9000, MSI and other DTL and TTL
Families.
CD Input Clamp Diodes Limit High Speed
Termination Effects.
The ITT9322 is a monolithic, high speed, quad
two-input digital multiplexer circuit, constructed
with the ITT epitaxial process. It
consists of four multiplexing circuits with
common select and enable logic, each circuit
contains two inputs and one output. The circuit
uses TTL for high speed, high fanout operation
and is compatible with all other members of the
DTL and TTL family of digital integrated
circuits.
A common use of the ITT9322 would be the
moving of data from a group of registers to four
common output busses. The particular register
from which the data came would be determined
by the state of the select input. A less obvious
use is a function generator. The ITT9322 can
generate four functions of two variables with
one variable common. This is useful for
implementing gating functions.
Z. = E . (II •• S + 10 •• S)
ze = E· (lIe' S + loe . S)
Zb = E • (lIb' S + lOb' S)
Zd = E • (lId' S + 10d • S)
FUNCTIONAL DESCRIPTION - The ITT9322
quad two input multiplexer is a member of the
ITT family of compatible Medium Scale
Integrated (MSI) digital building blocks. It
provides this family with the ability to select
four bits of either data or control from two
sources, in one package. The enable input (E) is
active low. When not activated all outputs (Z)
are low regardless of all other inputs.
4 12 9
LOGIC DIAGRAM
~@ ®® CD®
-l~__ +'l.:...d N-'.;:.:Od'----t--":n-=---l-:..:,.t....:.:..--+...:..:,' 1 II lOa
Vee = PIN 16
GND- PIN 8
The ITT9322 quad two input multiplexer is the
logical implementation of a four-pole two-position
switch, with the position of the switch
being set by the logic levels supplied to the one
select input. The logic equations for the
outputs are shown bel.ow:
ABSOLUTE MAXIMUM RATINGS
(above which the use,ul life may be impaired)
Characteristics
Units
Storage Temperature
................-65 C to + 150 C
Temperature (Ambient) Under
Bias ............-55Cto+125
C
VCC Pin Potential to Ground
Pin ................ 0.5Vto+7.0 V
Voltage Applied to Output when
outputishigh ....... OVto +VCC value
Input Voltage (DC) (See
Note1) ..........-0.5Vto + 5.5 V
Input Current (DC) (See
Note 1) ...........-30 mA to + 5 mA
Current into Output when output
is low ..................... + 30 mA
NOTE1:either Input Voltage limit or Input Current limit is
sufficient to protect the inputs.
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