mc33905s Freescale Semiconductor, Inc, mc33905s Datasheet - Page 10

• Manufacturer Part Number: mc33905s
• Description: System Basis Chip Gen2 With High Speed Can And Lin Interface
• Manufacturer: Freescale Semiconductor, Inc

Table 2. 33904/5 Pin Definitions (continued)
10
33904/5
PIN CONNECTIONS
33905D
24,31
Pin #
A functional description of each pin can be found in the Functional Pin Description section beginning on
18
19
23
25
26
36
37
38
39
40
41
42
43
44
45
46
47
33905S
Pin #
N/A
N/A
N/A
N/A
15
16
17
18
19
20
21
22
23
24
25
26
27
28
33904A
Pin #
N/A
N/A
N/A
N/A
15
16
17
18
19
20
21
22
23
24
25
26
27
28
33905D RXD-L1
33905D TXD-L1
33905S RXD-L
33905S TXD-L
33905D LIN-1
33905S LIN
Pin Name
VSENSE
TXD-L2
RXD-L2
SCLK
MOSI
MISO
I/O-0
GND
I/O-1
DBG
LIN2
VDD
RST
INT
CS
Pin Function
Input/Output
Input/Output
Input/Output
Input/Output
Ground
Output
Output
Output
Output
Output
Output
Input
Input
Input
Input
Input
Input
Input
Serial Data Clock Clock input for the Serial Peripheral Interface (SPI) of the
Master In / Slave
Interrupt Output
Formal Name
Input/Output 0
Input Output 1
Voltage Digital
Reset Output
(Active LOW)
(Active LOW)
(Active LOW)
LIN Transmit
LIN Transmit
LIN Receive
LIN Receive
Sense input
Master Out /
Chip Select
Slave In
LIN bus
LIN bus
Ground
Debug
Data 2
Drain
Data
Data
Data
Out
Configurable pin as an input or output, for connection to
external circuitry (switched or small load). The voltage level
can be read by the SPI and via the MUX output pin. The input
can be used as a programmable wake-up input in Low Power
Mode. In low power, when used as an output, the high side or
low side can be activated for a cyclic sense function.
Input to activate the Debug Mode. In Debug Mode, no
watchdog refresh is necessary. Outside of Debug Mode,
connection of a resistor between DBG and GND allows the
selection of Safe Mode functionality.
LIN bus transmit data input. Includes an internal pull-up
resistor to V
Ground of the IC.
LIN bus receive data output.
LIN bus input output connected to the LIN bus.
LIN bus input output connected to the LIN bus.
LIN bus transmit data input. Includes an internal pull-up
resistor to V
LIN bus receive data output.
Direct battery voltage input sense. A serial resistor is required
to limit the input current during high voltage transients.
Configurable pin as an input or output, for connection to
external circuitry (switched or small load). The voltage level
can be read by the SPI and via the MUX output pin. The input
can be used as a programmable wake-up input in Low Power
Mode. Can be used in association with I/O-0 for a cyclic sense
function in Low Power Mode.
This is the device reset output whose main function is to reset
the MCU. This pin has an internal pull-up to V
input voltage is also monitored in order to detect external
reset and safe conditions.
This output is asserted low when an enabled interrupt
condition occurs. The output is a push-pull structure.
Chip select pin for the SPI. When the CS is low, the device is
selected. In Low Power Mode with V
is a wake-up condition
device
SPI data received by the device
SPI data sent to the MCU. When the CS is high, MISO is high-
impedance
5.0 V or 3.3 V output pin of the main regulator for the
Microcontroller supply.
DD
DD
.
.
Analog Integrated Circuit Device Data
Definition
Freescale Semiconductor
DD
page
ON, a transition on CS
28.
DD.
The reset