ZHCSFH4I September 2016 – August 2023 ISO7730 , ISO7731
PRODUCTION DATA
Table 8-2 lists the functional modes for the ISO773x devices.
VCCI | VCCO | INPUT (INx)(2) | OUTPUT ENABLE (ENx) | OUTPUT (OUTx) | COMMENTS |
---|---|---|---|---|---|
PU | PU | H | H or open | H | Normal Operation: A channel output assumes the logic state of its input. |
L | H or open | L | |||
Open | H or open | Default | Default mode: When INx is open, the corresponding channel output goes to its default logic state. Default is High for ISO773x and Low for ISO773x with F suffix. | ||
X | PU | X | L | Z | A low value of Output Enable causes the outputs to be high-impedance |
PD | PU | X | H or open | Default | Default mode: When VCCI is unpowered, a channel output assumes the logic state based on the selected default option. Default is High for ISO773x and Low for ISO773x with F suffix. When VCCI transitions from unpowered to powered-up, a channel output assumes the logic state of its input. When VCCI transitions from powered-up to unpowered, channel output assumes the selected default state. |
X | PD | X | X | Undetermined | When VCCO is unpowered, a channel output is undetermined(1). When VCCO transitions from unpowered to powered-up, a channel output assumes the logic state of its input |