The SNx4AHC594 devices contain an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. Separate clocks and direct overriding clear (SRCLR, RCLR) inputs are provided on the shift and storage registers. A serial (QH′) output is provided for cascading purposes.
| Configuration | Serial-in, Parallel-out |
| Bits (#) | 8 |
| Technology family | AHC |
| Supply voltage (min) (V) | 2 |
| Supply voltage (max) (V) | 5.5 |
| Input type | Standard CMOS |
| Output type | Push-Pull |
| Clock frequency (MHz) | 115 |
| IOL (max) (mA) | 8 |
| IOH (max) (mA) | -8 |
| Supply current (max) (µA) | 40 |
| Features | Balanced outputs, Output register, Over-voltage tolerant inputs, Very high speed (tpd 5-10ns) |
| Operating temperature range (°C) | -40 to 125 |
| Rating | Catalog |
| PDIP (N) | 16 | 181.42 mm² 19.3 x 9.4 |
| SOIC (D) | 16 | 59.4 mm² 9.9 x 6 |
| SOP (NS) | 16 | 79.56 mm² 10.2 x 7.8 |
| SSOP (DB) | 16 | 48.36 mm² 6.2 x 7.8 |
| TSSOP (PW) | 16 | 32 mm² 5 x 6.4 |