The '283 and 'LS283 adders are electrically and functionally identical to the '83A and 'LS83A, respectively; only the arrangement of the terminals has been changed. The 'S283 high performance versions are also functionally identical.
These improved full adders perform the addition of two 4-bit binary words. The sum () outputs are provided for each bit and the resultant carry (C4) is obtained from the fourth bit. These adders feature full internal look-ahead across all four bits generating the carry term in ten nanoseconds, typically, for the '283 and 'LS283, and 7.5 nanoseconds for the 'S283. This capability provides the system designer with partial look-ahead performance at the economy and reduced package count of a ripple-carry implementation
SN74S283 | |
Rating | Catalog |
Technology Family | LS |
器件 | 状态 | 温度 | 价格 | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
SN74S283N | ACTIVE | 0 to 70 | 0.95 | 1ku | PDIP (N) | 16 | 25 | TUBE | |
SN74S283NE4 | ACTIVE | 0 to 70 | 0.95 | 1ku | PDIP (N) | 16 | 25 | TUBE |
器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
SN74S283N | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74S283N | SN74S283N |
SN74S283NE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74S283NE4 | SN74S283NE4 |