ATA6661-TAQ Atmel, ATA6661-TAQ Datasheet - Page 6

• Manufacturer Part Number: ATA6661-TAQ
• Manufacturer: Atmel

Specifications of ATA6661-TAQ

• Number Of Transmitters: 1
• Power Supply Requirement: Single
• Package Type: SO
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 8
• Operating Temperature (max): 125C
• Operating Temperature (min): -40C
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Lead Free Status / RoHS Status: Not Compliant

Figure 3-1.
3.14
3.15
6
Fail-safe Features
Physical Layer Compatibility
ATA6661
INH: high (INH HS switch ON)
Mode of Operation
Communication: ON
Normal Mode
Since the LIN physical layer is independent from higher LIN layers (e.g. LIN protocol layer), all
nodes with a LIN physical layer according to this revision can be mixed with LIN physical layer
nodes, which are according to older versions (i.e. LIN 1.0, LIN 1.1, LIN 1.2, LIN 1.3), without any
restrictions. A higher ratio of nodes according to this LIN physical layer specification or the one
of revision 2.0 will result in a higher transmission reliability.
b
• There are now reverse currents < 3 µA at pin LIN during loss of V
• Pin EN provides pull-down resistor to force the transceiver into sleep mode if EN is
• Pin RXD is set floating if V
• Pin TXD provides a pull-down resistor to provide a static low if TXD is disconnected.
• The LIN output driver has a current limitation and if the junction temperature T
• The implemented hysteresis T
behavior for bus systems where some slave nodes supplied from battery or ignition.
disconnected.
thermal shut-down temperature T
been decreased.
EN = 1
INH: high (INH internal High Side switch ON)
EN = 0
EN = 1
Communication: OFF
Go to sleep command
Local wake-up event
Unpowered Mode
Pre-normal Mode
b
V
Batt
BAT
= 0V
is disconnected.
hys
a
off
enables the LIN output again after the temperature has
the output driver switches off.
d
INH: high impedance (INH HS switch OFF)
c
a: V
b: V
c: Bus wake-up event
d: Wake-up from Wake switch
b
Communication: OFF
S
S
> 5V
< 4V
Sleep Mode
BAT
or GND. Optimal
4729M–AUTO–02/09
j
exceeds the