SLLSG36 April 2025 ISO6540-Q1 , ISO6541-Q1 , ISO6542-Q1
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
Table 7-2 lists the functional modes for the ISO654x-Q1 devices.
| VCCI(1) | VCCO | INPUT (INx) | OUTPUT ENABLE (ENx) | OUTPUT (OUTx) | COMMENTS |
|---|---|---|---|---|---|
| PU | PU | H | H or open | H | Normal Operation: A channel output assumes the logic state of the input. |
| L | H or open | L | |||
| Open | H or open | Default | Default mode: When INx is open, the corresponding channel output goes to the default logic state. Default is High for ISO654x-Q1 and Low for ISO654xF-Q1 (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 ISO654x-Q1 and
Low for ISO654xF-Q1 (with F
suffix). When VCCI transitions from unpowered to powered-up, a channel output assumes the logic state of the 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(2). When VCCO transitions from unpowered to powered-up, a channel output assumes the logic state of the input. |