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Numéro de référence | NTE7483 | ||
Description | TTL - 4-Bit Binary Full Adder | ||
Fabricant | NTE Electronics | ||
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1 Page
NTE7483
Integrated Circuit
TTL − 4−Bit Binary Full Adder with Fast Carry
Description:
The NTE7483 is a 4−bit binary full adder in a 16−Lead plastic DIP type package that performs the addition
of two 4−bit binary numbers. The sum () outputs are provided for each bit and the resultant carry (C4) is
obtained from the fourth bit. This device features full internal look−ahead across all four bits generating the
carry term in ten nanoseconds (typ). This capability provides the system designer with partial look−ahead
performance at the economy and reduced package count of a ripply−carry implementation.
The adder logic, including the carry, is implemented in its true form. End around carry can be accomplished
without the need for logic or level inversion.
Features:
D Full−Carry Look−Ahead Across the Four Bits
D Systems Achieve Partial Look−Ahead Performance with the Economy of Ripple−Carry
D The NTE74283 is Recommended for New Design as it Features Supply Voltage and GND on
Corner Pins to Simplify Board Layout.
Absolute Maximum Ratings: (Note 1)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V
Interemitter Voltage (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V
Operating Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0C to +70C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65C to +150C
Note 1. Unless otherwise specified, all voltages are referenced to GND.
Note 2. This is the voltage between two emitters of a multiple−emitter transistor. This rating applies
between the following pairs: A1 and B1, A and B2, A3 and B3, A4 and B4.
Recommended Operating Conditions:
Parameter
Supply Voltage
High−Level Output Current
Any Output Except C4
Output C4
Low−Level Output Current
Any Output Except C4
Output C4
Operating Temperature Range
Symbol
VCC
IOH
IOL
TA
Min Typ Max Unit
4.75 5.0 5.25 V
− − −800 A
− − −400 A
− − 16 mA
− − 8 mA
0 − +70 C
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Pages | Pages 4 | ||
Télécharger | [ NTE7483 ] |
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