SN74F299是TI公司的一款移位寄存器产品，SN74F299是通用移位/存储寄存器，本页介绍了SN74F299的产品说明、应用、特性等，并给出了与SN74F299相关的TI元器件型号供参考。
SN74F299 - 通用移位/存储寄存器 - 移位寄存器 - 触发器/锁存器/寄存器 - TI公司（Texas Instruments，德州仪器）
These 8-bit universal shift/storage registers feature multiplexed I/O ports to achieve full 8-bit data handling in a single 20-pin package. Two function-select (S0, S1) inputs and two output-enable (OE1\, OE2\) inputs can be used to choose the modes of operation listed in the function table.
Synchronous parallel loading is accomplished by taking both S0 and S1 high. This places the 3-state outputs in a high-impedance state and permits data that is applied on the I/O ports to be clocked into the register. Reading out of the register can be accomplished while the outputs are enabled in any mode. Clearing occurs when the clear (CLR\) input is low. Taking either OE1\ or OE2\ high disables the outputs but has no effect on clearing, shifting, or storage of data.
- Four Modes of Operation:
- Hold (Store)
- Shift Right
- Shift Left
- Load Data
- Operates With Outputs Enabled or at High Impedance
- 3-State Outputs Drive Bus Lines Directly
- Can Be Cascaded for N-Bit Word Lengths
- Direct Overriding Clear
- Applications:
- Stacked or Push-Down Registers
- Buffer Storage
- Accumulator Registers
