Rainbow Electronics ATA6631 - Manual (Page 2)

2
9165A–AUTO–11/09
ATA6629/ATA6631
Figure 1-1. Block Diagram
2. Pin Configuration
Figure 2-1. Pinning SO8
3 GND
2 EN
6 TXD
5 RXD
VCC 8
NRE S 7
S hort-circ u it a nd
overtemper a t u re
protection
Norm a l/ S ilent/
F a il- sa fe Mode
3 . 3 V/50 mA/±2 %
5V/50 mA/±2 %
Control
u nit
Norm a l a nd
F a il- sa fe
Mode
RF-filter
LIN
V S 1
4
TXD
Time-o u t
timer
S lew r a te control
Undervolt a ge re s et
S leep
mode
VCC
s witched
off
W a ke- u p bus timer
ATA6629/ATA66 3 1
Receiver
V
CC
-
+
V
CC
5 k Ω
VCC
3
4
2
1
TXD
NRES
RXD
VS 8
7
6
5
GND
EN
LIN
Table 2-1. Pin Description
Pin Symbol Function
1 VS Battery supply
2 EN Enables Normal Mode if the input is high
3 GND Ground, heat sink
4 LIN LIN bus line input/output
5 RXD Receive data output
6 TXD Transmit data input
7 NRES Output undervoltage reset, low at reset
8 VCC Output voltage regulator 3.3V/5V/50 mA