OPERATING MODE | OE# | LE | Dn | INTERNAL LATCHES | Q0..Q7 |
---|---|---|---|---|---|
enable and read register (transparent mode) | L | H | L | L | L |
L | H | H | H | H | |
latch and read register | L | L | l | L | L |
L | L | h | H | H | |
latch register and disable outputs | H | X | X | X | Z |
H | X | X | X | Z |
L
: low voltageH
: high voltageX
: don’t careZ
: High Impedance