8 Backup registers to store data during VCC shut down
ep-SOIC8 package
2 Key Features
Operating voltage 6V to 18V
Linear, low-drop voltage regulator: VCC = 5V ±5% or 3.3V ±5%
-40ºC to +125ºC ambient operating temperature
as a factory programming option
50mA load current
Operating modes: Normal and Standby or Normal and Sleep as
3 Applications
The AS8530 is a System Basis Chip for automotive LIN networked
sensor or actuator slaves.
a factory option
Figure 1. AS8530 LIN Transceiver Block Diagram
VSUP
LDO
VCC
POR-VSUP
Temperature
Limiter
TSHD
AS8530
Control
Signals
POR-VCC
RESET_VSUP_N
RESET_VCC_N
EN
Mode
Control
LIN
Wakeup
WWD Output
Reset
Block
RESET
RESET_VSUP_N
2-Wire
Interface
Window
Watchdog
(WWD)
VSUP
Receiver
RX
30k
Transmitter
Slew
Control
VCC
15k
LIN
TX
GND
LIN Transceiver
www.ams.com/Lin_CompanionIC/AS8530
Revision 1.1
1 - 32
AS8530
Datasheet - C o n t e n t s
Contents
1 General Description ..................................................................................................................................................................
5 Absolute Maximum Ratings ......................................................................................................................................................
6.2 Digital Inputs and Outputs ....................................................................................................................................................................
6.3 Detailed System and Block Specifications ...........................................................................................................................................
6.5 LIN Transceiver ....................................................................................................................................................................................
6.5.1
6.5.2
6.5.3
6.5.4
5
6
6
6
7
7
8
6.3.1 Electrical System Specifications .................................................................................................................................................. 7
DC Electrical Characteristics ....................................................................................................................................................... 8
AC Electrical Characteristics ....................................................................................................................................................... 9
Temperature Limiter .................................................................................................................................................................. 10
Undervoltage Reset and Window Watchdog..............................................................................................................................
6.7 Two Port Serial Interface ....................................................................................................................................................................
7.1 Voltage Regulator (LDO) ....................................................................................................................................................................
7.2 Temperature Limiter............................................................................................................................................................................
Undervoltage in Normal Mode......................................................................................................................................... 13
7.3.2 V
SUP
Undervoltage in Standby Mode / Sleep Mode................................................................................................................. 13
7.3.3 V
SUP
Undervoltage in Low Slew Mode..................................................................................................................................... 13
7.7 LIN Transceiver ..................................................................................................................................................................................
7.8 Operating Modes and States..............................................................................................................................................................
7.8.1
7.8.2
7.8.3
7.8.4
7.8.5
Normal Mode .............................................................................................................................................................................
Thermal Shutdown State ...........................................................................................................................................................
14
14
14
15
15
15
15
15
16
16
17
7.9 State Diagram.....................................................................................................................................................................................
8 Application Information ...........................................................................................................................................................
8.4 LIN BUS Transceiver ..........................................................................................................................................................................
8.7 Serial Port Interface............................................................................................................................................................................
8.8 Control and Diagnosis Registers ........................................................................................................................................................
20
21
23
26
8.7.1 Device Configuration using 2-Wire Serial Port .......................................................................................................................... 23
8.8.1 Definition of Control and Status Registers................................................................................................................................. 26
9 Package Drawings and Markings ...........................................................................................................................................
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