Datasheet
Table Of Contents
- Content Guide
- 1 General Description
- 2 Ordering Information
- 3 Pin Assignment
- 4 Absolute Maximum Ratings
- 5 Operating Conditions
- 6 Register Description
- 6.1 Register Overview
- 6.2 Detailed Register Description
- 6.3 Serial Interface
- 6.3.1 Bus Description
- 6.3.2 Data Interface
- 6.3.3 Bus Address
- 6.3.4 Read/Write Operation
- 6.3.5 Slave Operation
- 6.3.6 Slave Receiver Mode
- 6.3.7 Slave Transmitter
- 6.3.8 Alert Function
- 6.3.9 High Speed Mode
- 6.3.10 General Call
- 6.3.11 Start Byte
- 6.3.12 Timeout Function
- 6.3.13 Bus Conditions
- 6.3.14 Timing Characteristics
- 6.3.15 Timing Diagrams
- 7 Application Information
- 8 Package Drawings & Markings
- 9 Revision Information
- 10 Legal Information
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AS621x
Register Description
Datasheet • PUBLIC
DS000677 • v2-00 • 2020-Feb-24
36 │ 14
6.2.3 Conversion Rate Bits
The conversion rate bits define the number of executed temperature conversions per time unit.
Additional readouts of the temperature register between conversions are possible but not
recommended because the value is changed only after a conversion is finished.
Values of 125ms, 250ms, 1s and 4s for a conversion can be configured while the default rate is set to
4 conversions per second. The following table summarizes the different configuration settings:
Figure 15:
Conversion Rate Configuration
Conversion Rate Bits
Conversion Rate
Bit 7
Bit 6
Conv/s
0
0
0.25
0
1
1
1
0
4
1
1
8
The device immediately starts a conversion after a power-on sequence and provides the first result
after typ. 36ms (max. 51ms). A higher power consumption occurs during the actual conversion while
the device stays in the standby mode after a finished conversion until the next conversion is activated.
This is shown in the following figure.
Figure 16:
Conversion Sequence
6.2.4 Sleep Mode
The sleep mode is activated by setting the bit SM in the configuration register to 1. This shuts the
device down immediately and reduces the power consumption to a minimum value.