These bidirectional shift registers are designed to incorporate virtually all   of the features a system designer may want in a shift register. The circuit   contains 46 equivalent gates and features parallel inputs, parallel outputs,   right-shift and left-shift serial inputs, operating-mode-control inputs, and a   direct overriding clear line. The register has four distinct modes of operation,   namely: 
Synchronous parallel loading is accomplished by applying the four bits of data and taking both mode control inputs, S0 and S1, high. The data are loaded into the associated flip-flops and appear at the outputs after the positive transition of the clock input
| SN54S194 | |
| Technology Family | S | 
| Rating | Military | 
| 器件 | 状态 | 温度 | 价格 | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 | 
| SN54S194J | ACTIVE | -55 to 125 | 16.23 | 1ku | CDIP (J) | 16 | 1 | TUBE | |
| SNJ54LS674FK | ACTIVE | -55 to 125 | 17.37 | 1ku | LCCC (FK) | 20 | 1 | TUBE | |
| SNJ54LS674J | ACTIVE | -55 to 125 | 23.81 | 1ku | CDIP (J) | 16 | 1 | TUBE | |
| SNJ54LS674W | ACTIVE | -55 to 125 | 16.23 | 1ku | CFP (W) | 16 | 1 | 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 | 
| SN54S194J | TBD | A42 | N/A for Pkg Type | SN54S194J | SN54S194J | 
| SNJ54LS674FK | TBD | POST-PLATE | N/A for Pkg Type | SNJ54LS674FK | SNJ54LS674FK | 
| SNJ54LS674J | TBD | A42 | N/A for Pkg Type | SNJ54LS674J | SNJ54LS674J | 
| SNJ54LS674W | TBD | Call TI | N/A for Pkg Type | SNJ54LS674W | SNJ54LS674W |