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ATA663201 Datasheet(PDF) 4 Page - Microchip Technology

Part # ATA663201
Description  LIN Bus Device Family Including Voltage Regulator and LIN SBC with Compatible Footprint
PDF  36 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

ATA663201 Datasheet(HTML) 4 Page - Microchip Technology

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ATA663201/03/31/54
DS20006075D-page 4
 2018-2021 Microchip Technology Inc.
1.0
FUNCTIONAL DESCRIPTION
1.1
Physical Layer Compatibility
Since the LIN physical layer is independent of higher
LIN layers (e.g., LIN protocol layer), all nodes with a
LIN physical layer according to revision 2.x can be
mixed with LIN physical layer nodes based on earlier
versions (i.e., LIN 1.0, LIN 1.1, LIN 1.2, LIN 1.3) without
any restrictions.
1.2
Operating Modes
FIGURE 1-1:
SBC OPERATING MODES
Note 1: Condition f is valid for VS ramp up; at VS ramp down condition e is valid instead of f.
a: V S > VVS_th_U_F_up (2.4V)
b:
< VVS_th_U_down (1.9V)
c: Bus wake-up event (LIN)
f: V S > VVS_th_F_N_up (4.9V)
d: V CC < VVCC_th_uv_down (2.4V/4.2V)
e: V S < VVS_th_N_F_down (3.9V)
EN = 0
Go to sleep
command
Go to silent
command
EN = 0
TXD = 0
bc & f
EN = 0
TXD = 0
EN = 0
TXD = 1
EN = 1
& f
TXD = 1
d,
e
b
a
b
& f
Fail-safe Mode
VCC: ON
VCC monitor active
Communication: OFF
Wake-up Signalling
Undervoltage Signalling
EN = 1
Normal Mode
VCC:
VCC monitor active
Communication: ON
Sleep Mode
VCC: OFF
Communication: OFF
Unpowered Mode
All circuitry OFF
Silent Mode
VCC:
VCC monitor active
Communication: OFF
c & f,
d
EN = 1
& f
& d & f
(1)
& f
(1)
TABLE 1-1:
SBC (ATA663254, ATA663231) OPERATING MODES
Operating Mode
Transceiver
VVCC (SBC Only)
LIN
TXD
RXD
Fail-Safe
OFF
3.3V/5V
Recessive
Signaling fail-safe sources
(see Table 1-2)
Normal
OFF
3.3V/5V
TXD-dependent
Follows data transmission
Silent
OFF
3.3V/5V
Recessive
High
High
Sleep/Unpowered
OFF
0V
Recessive
Low
Low



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