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CD74HC283 Datasheet(Fiches technique) 1 Page - Texas Instruments

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Numéro de pièce CD74HC283
Description  High Speed CMOS Logic 4-Bit Binary Full Adder with Fast Carry
Télécharger  6 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
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Data sheet acquired from Harris Semiconductor
SCHS176
Features
• Adds Two Binary Numbers
• Full Internal Lookahead
• Fast Ripple Carry for Economical Expansion
• Operates with Both Positive and Negative Logic
• Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
• Wide Operating Temperature Range . . . -55oC to 125oC
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL
Logic ICs
• HC Types
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC
at VCC = 5V
• HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
VIL= 0.8V (Max), VIH = 2V (Min)
- CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH
Description
The Harris CD74HC283 and CD74HCT283 binary full
adders that add two 4-bit binary numbers and generate a
carry-out bit if the sum exceeds 15.
Because of the symmetry of the add function, this device
can be used with either all active-high operands (positive
logic) or with all active-low operands (negative logic). When
using positive logic the carry-in input must be tied low if there
is no carry-in.
Ordering Information
PART NUMBER
TEMP. RANGE (oC)
PACKAGE
PKG.
NO.
CD74HC283E
-55 to 125
16 Ld PDIP
E16.3
CD74HCT283E
-55 to 125
16 Ld PDIP
E16.3
CD74HC283M
-55 to 125
16 Ld SOIC
M16.15
CD74HCT283M
-55 to 125
16 Ld SOIC
M16.15
NOTES:
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Wafer and die is available which meets all electrical
specifications. Please contact your local sales office or Harris
customer service for ordering information.
Pinout
CD74HC283, CD74HCT283
(PDIP, SOIC)
TOP VIEW
Functional Diagram
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
S1
B1
A1
S0
A0
B0
GND
CIN
VCC
A2
S2
A3
B3
S3
COUT
B2
5
6
3
2
15
11
12
14
4
9
S2
S1
A0
B0
A1
B1
B2
A3
B3
A2
7
CIN
GND = 8
VCC = 16
10
13
1
S0
S3
COUT
November 1997
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
© Harris Corporation 1997
File Number
1848.1
CD74HC283,
CD74HCT283
High Speed CMOS Logic
4-Bit Binary Full Adder with Fast Carry
[ /Title
(CD74
HC283
,
CD74
HCT28
3)
/Sub-
ject
(High
Speed
CMOS
Logic
4-Bit
Binary
Full
Adder




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