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
Application Information
Datasheet • PUBLIC
DS000677 • v2-00 • 2020-Feb-24
36 │ 32
7.1 External Components
Figure 35:
Schematic with External Components
Figure 36:
Values for External Components
Parameter
Min
Typ
Unit
Decoupling capacitor
10
nF
Pull up resistors
10
kΩ
In Figure 35 and Figure 36 the schematics and the recommended values for external components are
shown.
The decoupling capacitor for the supply should have a value of at least 10 nF.
In order to use the alert functionality, the ALERT/ADD1 pin must be connected via a pull up resistor to
VDD.
For the serial interface, pull up resistors to VDD are mandatory.
The pull up resistors on the serial interface and the interrupt depend on the bus capacitance and on
the clock speed.
VDD
10nF
VDD
Address Select 0
Slave
Pull-up resistors
R
PU
SDA
VDD
ADD0
SCL
ADD1/
ALERT
VSS
AS621
x
Address Select 1
SCL
SDA
Alert