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NTE7483 PDF даташит

Спецификация NTE7483 изготовлена ​​​​«NTE Electronics» и имеет функцию, называемую «TTL - 4-Bit Binary Full Adder».

Детали детали

Номер произв NTE7483
Описание TTL - 4-Bit Binary Full Adder
Производители NTE Electronics
логотип NTE Electronics логотип 

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NTE7483 Даташит, Описание, Даташиты
NTE7483
Integrated Circuit
TTL 4Bit Binary Full Adder with Fast Carry
Description:
The NTE7483 is a 4bit binary full adder in a 16Lead plastic DIP type package that performs the addition
of two 4bit 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 lookahead across all four bits generating the
carry term in ten nanoseconds (typ). This capability provides the system designer with partial lookahead
performance at the economy and reduced package count of a ripplycarry 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 FullCarry LookAhead Across the Four Bits
D Systems Achieve Partial LookAhead Performance with the Economy of RippleCarry
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 multipleemitter 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
HighLevel Output Current
Any Output Except C4
Output C4
LowLevel 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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NTE7483 Даташит, Описание, Даташиты
Electrical Characteristics: (Note 3, Note 4)
Parameter
Symbol
Test Conditions
High Level Input Voltage
VIH
Low Level Input Voltage
VIL
Input Clamp Voltage
VIK VCC = MIN, II = 12mA
High Level Output Voltage
VOH VCC = MIN, VIH = 2V, VIL = 0.8V, IOH = MAX
Low Level Output Voltage
VOL VCC = MIN, VIH = 2V, VIL = 0.8V, IOL = 4mA
Input Current
II VCC = MAX, VI = 5.5V
High Level Input Current
IIH VCC = MAX, VI = 2.4V
Low Level Input Current
IIL VCC = MAX, VI = 0.4V
ShortCircuit Output Current
Any Output Except C4
IOS
VCC = MAX, Note 5
Output C4
Supply Current
ICC VCC = MAX, Outputs Open
All B Low, Other Inputs at 4.5V
All Inputs at 4.5V
Min Typ Max Unit
2 − −V
− − 0.8 V
− − −1.5 V
2.4 3.4
V
0.2 0.4 V
− − 1 mA
− − 40 A
− − −1.6 mA
18 − −55 mA
18 − −70 mA
56 mA
66 110 mA
Note 3. .For conditions shown as MIN or MAX, use the appropriate value specified under “Recommended
Operation Conditions”.
Note 4. All typical values are at VCC = 5V, TA = +25C.
Note 5. Not more than one output should be shorted at a time.
Switching Characteristics: (VCC = 5V, RL = 667, TA = +25C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Propagation Delay Time
(From C0 Input to Any Output)
tPLH
tPHL
RL = 400, CL = 15pF
14 21 ns
12 21 ns
Propagation Delay Time
(From Ai or Bi Input to i Output)
tPLH
tPHL
16 24 ns
16 24 ns
Output Enable Time
(From C0 Input to C4 Output)
tPZH
tPZL
RL = 780, CL = 15pF
9 14 ns
11 16 ns
Propagation Delay Time
(From Ai or Bi Input to C4 Output)
tPLH
tPHL
9 14 ns
11 16 ns









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NTE7483 Даташит, Описание, Даташиты
Function Table:
Output
Input
When
C0 = L
When
C2 = L
When
C0 = H
When
C2 = H
A1
B1
A3
A2
B3
B2
A4
B4 S1
S3 S2
C2
S4
C4 S1
S3 S2
C2
S4
C4
L L L L L L LHL L
HL L LHL L LHL
LHL LHL L LHL
HHL L LHLHHL
L LHL LHLHHL
HLHLHHL L LH
LHHLHHL L LH
HHHL L LHHLH
L L LHLHLHHL
HL LHHHL L LH
LHLHHHL L LH
HHLHL LHHLH
L LHHL LHHLH
H L HHH L H L HH
L HHHH L H L HH
HHHH L HHHHH
H = HIGH Level
L = LOW Level
NOTE: Input conditions at A1, B1, A2, B2, and C0 are used to determine outputs 1 and 2 and the
value of the internal carry C2. The values at C2, A3, B3, A4, and B4 are then used to determine outputs
3, 4, and C4.










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