Preliminary Technical Data

ADT7320

Rev. PrA | Page 11 of 24

CT and INT Operation in One-Shot Mode

See Figure 13 for more information on one-shot CT pin

limits is exceeded. Note that in interrupt mode, a read from

any register resets the INT and CT pins.

For the INT pin in comparator mode, if the temperature drops

value, a write to the one-shot bits (Bit 5 and Bit 6 of the

configuration register, Register Address 0x01) resets the INT pin.

For the CT pin in the comparator mode, if the temperature drops

and Bit 6 of the configuration register, Register Address 0x01)

resets the CT pin, see Figure 13.

Note that when using one-shot mode, ensure that the refresh

rate is appropriate to the application being used.

TEMPERATURE

149°C

148°C

147°C

146°C

145°C

144°C

143°C

142°C

141°C

140°C

CT PIN

POLARITY = ACTIVE LOW

CT PIN

POLARITY = ACTIVE HIGH

TIME

*THERE IS A 240ms DELAY BETWEEN WRITING TO THE CONFIGURATION REGISTER TO START

A STANDARD ONE-SHOT CONVERSION AND THE CT PIN GOING ACTIVE. THIS IS DUE TO THE

CONVERSION TIME. THE DELAY IS 60ms IN THE CASE OF A ONE-SHOT CONVERSION.

WRITE TO

BIT 5 AND BIT 6 OF

CONFIGURATION

REGISTER.*

WRITE TO

BIT 5 AND BIT 6 OF

CONFIGURATION

REGISTER.*

WRITE TO

BIT 5 AND BIT 6 OF

CONFIGURATION

REGISTER.*

Figure 13. One-Shot CT Pin