具有施密特觸發(fā)輸入和三態(tài)輸出寄存器的 8 位移位寄存器
| Configuration | Serial-in, Parallel-out |
| Bits (#) | 8 |
| Technology Family | HCS |
| Supply voltage (Min) (V) | 2 |
| Supply voltage (Max) (V) | 6 |
| Input type | Schmitt-Trigger |
| Output type | 3-State |
| Clock Frequency (MHz) | 75 |
| IOL (Max) (mA) | 7.8 |
| IOH (Max) (mA) | -7.8 |
| ICC (Max) (uA) | 2 |
| Features | Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode, Output register |
- Wide operating voltage range: 2 V to 6 V
- Schmitt-trigger inputs allow for slow or noisy input signals
- Low power consumption
- Typical ICC of 100 nA
- Typical input leakage current of ±100 nA
- ±7.8-mA output drive at 6 V
- Extended ambient temperature range: –40°C to +125°C, TA
The SN74HCS595 device contains an 8-bit, serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. All inputs include Schmitt-trigger architecture, eliminating any erroneous data outputs due to slow-edged or noisy input signals. The storage register has parallel 3-state outputs. Separate clocks are provided for both the shift and storage register. The shift register has a direct overriding clear (SRCLR) input, serial (SER) input, and a serial output (QH?) for cascading. When the output-enable (OE) input is high, the storage register outputs are in a high-impedance state. Internal register data and serial output (QH?) are not impacted by the operation of the OE input.
