The 74HC283 is a high-speed Si-gate CMOS device and is pin compatible with low power Schottky TTL (LSTTL). The 74HC283 is specified in compliance with JEDEC standard no. 7A.
The 74HC283 adds two 4-bit binary words (An plus Bn) plus the incoming carry (CIN). The binary sum appears on the sum outputs (S1 to S4) and the out-going carry (COUT) according to the equation:
CIN + (A1 + B1) + 2(A2 + B2) + 4(A3 + B3) + 8(A4 + B4) = = S1 + 2S2 + 4S3 + 8S4 + 16COUT
Where (+) = plus.
Due to the symmetry of the binary add function, the 74HC283 can be used with either all active HIGH operands (positive logic) or all active LOW operands (negative logic). In case of all active LOW operands the results S1 to S4 and COUT should be interpreted also as active LOW. With active HIGH inputs, CIN must be held LOW when no carry in is intended. Interchanging inputs of equal weight does not affect the operation, thus CIN, A1, B1 can be assigned arbitrarily to pins 5, 6, 7, etc.
See the 74HC583 for the BCD version.
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| 74HC283D | 74HC283D | 9337 572 90652 | Volume production | SOT109-1
(SO16) | Bulk Pack, CECC | Standard Marking | 74HC283D
| week 30, 2004 |
| 74HC283D | 74HC283D-T | 9337 572 90653 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13", CECC | Standard Marking | 74HC283D
| week 30, 2004 |
| 74HC283DB | 74HC283DB | 9351 893 00112 | Volume production | SOT338-1
(SSOP16) | Tube | Standard Marking | 74HC283DB
| week 12, 2005 |
| 74HC283DB | 74HC283DB-T | 9351 893 00118 | Volume production | SOT338-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | 74HC283DB
| week 12, 2005 |
| 74HC283N | 74HC283N | 9337 572 80652 | Volume production | SOT38-4
(DIP16) | Bulk Pack, CECC | Standard Marking | 74HC283N
| Always Pb-free |
| 74HC283PW | 74HC283PW | 9351 890 20112 | Volume production | SOT403-1
(TSSOP16) | Tube | Standard Marking | 74HC283PW
| week 10, 2005 |
| 74HC283PW | 74HC283PW-T | 9351 890 20118 | Volume production | SOT403-1
(TSSOP16) | Reel Pack, SMD, 13" | Standard Marking | 74HC283PW
| week 10, 2005 |
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| 74HC283D | 9337 572 90652 | 0.4900 | Order samples | |||||
| 74HC283D | 9337 572 90653 | 0.4900 | Order samples | |||||
| 74HC283DB | 9351 893 00112 | 0.4900 | NA | DIGI-KEY CORPORATION | 1,472 | 8/5/2008 | Buy online | not available |
| 74HC283DB | 9351 893 00118 | 0.4900 | NA | MOUSER ELECTRONICS | 1,888 | 8/4/2008 | Buy online | Order samples |
| 74HC283N | 9337 572 80652 | 0.4400 | NA | ARROW ELECTRONICS | 1,850 | 8/5/2008 | Buy online | Order samples |
| 74HC283PW | 9351 890 20112 | 0.4900 | not available | |||||
| 74HC283PW | 9351 890 20118 | 0.4900 | Order samples |
| Type number | Package | Description | Propagation Delay(ns) | Voltage | No. of Pins | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|
| 74HC283D | SOT109-1
(SO16) | 4-Bit Binary Full Adder with Fast Carry | 21@5V | 2.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC283DB | SOT338-1
(SSOP16) | 4-Bit Binary Full Adder with Fast Carry | 21@5V | 2.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC283N | SOT38-4
(DIP16) | 4-Bit Binary Full Adder with Fast Carry | 21@5V | 2.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC283PW | SOT403-1
(TSSOP16) | 4-Bit Binary Full Adder with Fast Carry | 21@5V | 2.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
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