mc33661 Freescale Semiconductor, Inc, mc33661 Datasheet - Page 17

• Manufacturer Part Number: mc33661
• Description: Local Area Network Lin Enhanced Physical Interface With Selectable Slew Rate
• Manufacturer: Freescale Semiconductor, Inc

Figures 18
Analog Integrated Circuit Device Data
Freescale Semiconductor
The 33661 can be configured in several applications.
V
V
PWR
PWR
and
* Optional
External
19
External
Switch
Switch
show master and slave node applications.
* Optional
12 V
Regulator
12 V
Regulator
5.0 V
5.0 V
INH
V
DD
V
DD
V
DD
V
MCU
DD
MCU
> 33 kΩ
RXD
TXD
Figure 18. Master Node Typical Application
> 33 kΩ
Figure 19. Slave Node Typical Application
RXD
TXD
I/O
I/O
TYPICAL APPLICATIONS
V
V
DD
WAKE
DD
*
WAKE
RXD
TXD
*
RXD
EN
TXD
EN
An additional pullup resistor of 1.0 kΩ in series with a diode
must be added when the device is used in the master node.
Control
Control
33661
Control
33661
Control
INH
INH
Receiver
Receiver
Slope
Control
Slope
Control
VSUP
VSUP
20 µA
30 kΩ
20 µA
30 kΩ
TYPICAL APPLICATIONS
INH
LIN
GND
LIN
GND
INH
Master Node
LIN Bus
1.0 kΩ
LIN Bus
Pullup
33661
17