Manual

2
9146E–AUTO–03/11
Atmel ATA6663/ATA6664
Figure 1-1. Block Diagram
2. Pin Configuration
Figure 2-1. Pinning SO8, DFN8
VS
GND
5
6
LIN
7
1
4
RXD
TXD
WAKE
EN
3
2 8
INH
Short-circuit and over-
temperature protection
Receiver
Filter
Wake-up bus timer
Slew rate control
TXD
time-out
timer
VS
Wake-up
timer
Sleep mode
VS
Control unit
(only ATA6663)
RXD
EN
WAKE
TXD
INH
VS
LIN
GND
1
2
3
4
8
7
6
5
INH
LIN
VS
GND
RXD
WAKE
EN
TXD
DFN8
3 x 3
SO8
Table 2-1. Pin Description
Pin Symbol Function
1 RXD Receive data output (open drain)
2 EN Enables normal mode; when the input is open or low, the device is in sleep mode
3 WAKE High voltage input for local wake-up request. If not needed, connect directly to VS
4 TXD Transmit data input; active low output (strong pull-down) after a local wake-up request
5 GND Ground, heat sink
6 LIN LIN bus line input/output
7 VS Battery supply
8INH
Battery-related inhibit output for controlling an external voltage regulator or to switch-off the LIN master
pull-up resistor; active high after a wake-up request