The Operating Mode Table and the Output Function Table list the functional modes of the SN74HCS165.
Table 8-1 Operating Mode Table
| INPUTS(1) |
FUNCTION |
| SH/LD |
CLK |
CLK INH |
| L |
X |
X |
Parallel load |
| H |
H |
X |
No change |
| H |
X |
H |
No change |
| H |
L |
↑ |
Shift(2) |
| H |
↑ |
L |
Shift(2) |
(1) H = High Voltage Level, L = Low
Voltage Level, X = Don't Care, ↑ = Low to High transition
(2) Shift : Content of each internal register shifts towards serial
output QH. Data at SER is shifted into the first register.
Table 8-2 Output Function Table
| INTERNAL REGISTERS(1)(2) |
OUTPUTS(2) |
| A — G |
H |
Q |
Q |
| X |
L |
L |
H |
| X |
H |
H |
L |
(1) Internal registers refer to the
shift registers inside the device. These values are set by either loading data
from the parallel inputs, or by clocking data in from the serial input.
(2) H = High Voltage Level, L = Low
Voltage Level, X = Don't Care