ZHCSJ22B October 2017 – July 2019 ISO7041
PRODUCTION DATA.
Table 2 shows the functional modes for the device.
| VCCI | VCCO | INPUT
(INx)(3) |
REFRESH ENABLE
(ENx) |
OUTPUT
(OUTx) |
COMMENTS |
|---|---|---|---|---|---|
| PU | PU | H | L | H | Normal Operation:
A channel output assumes the logic state of its input. |
| L | L | L | |||
| X | H | Undetermined | The device needs an input signal transition to validate the output tracks the input state. Without a signal edge transition, the output will be in an undetermined state. | ||
| PD | PU | X | L | Default | When VCCI is unpowered, a channel output assumes the logic state based on the selected default option. Default is High for the device without the F suffix and Low for device with the 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. |
| H | Undetermined | When VCCI is unpowered, a channel output assumes the logic state based on the previous state of the output before VCCI powered down. | |||
| X | PD | X | L | 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. |
| H | Undetermined | When VCCO is unpowered, a channel output is undetermined(2).
When VCCO transitions from unpowered to powered-up, a channel output assumes the selected default option. |
|||
| X | X | X | Open | Undetermined | When ENx is unconnected or open, the device output will be in an undetermined and unknown state. ENx must be connected high or low for the device to behave correctly. |