33912 Datasheet, PDF (3/47 Pages) Freescale Semiconductor, Inc – LIN System Basis Chip with DC Motor Pre-driver and Current

PIN CONNECTIONS
PIN CONNECTIONS
RXD 1
TXD 2
MISO 3
MOSI 4
SCLK 5
CS 6
ADOUT0 7
PWMIN 8
24 HS2
23 L1
22 L2
21 L3
20 L4
19 LS1
18 PGND
17 LS2
Figure 3. 33912 Pin Connections
Table 1. 33912 Pin Definitions
A functional description of each pin can be found in the Functional Pin Description section beginning on page 21.
Pin
Pin Name
Formal Name
Definition
This pin is the receiver output of the LIN interface which reports the state of
1
RXD
Receiver Output
the bus voltage to the MCU interface.
This pin is the transmitter input of the LIN interface which controls the state of
2
TXD
Transmitter Input
the bus output.
SPI (Serial Peripheral Interface) data output. When CS is high, pin is in the
3
MISO
SPI Output
high-impedance state.
4
MOSI
SPI Input
SPI (Serial Peripheral Interface) data input.
5
SCLK
SPI Clock
SPI (Serial Peripheral Interface) clock Input.
6
CS
SPI Chip Select
SPI (Serial Peripheral Interface) chip select input pin. CS is active low.
7
ADOUT0
Analog Output Pin 0 Analog Multiplexer Output.
8
PWMIN
PWM Input
High Side and Low Side Pulse Width Modulation Input.
Bidirectional Reset I/O pin - driven low when any internal reset source is
9
RST
Internal Reset I/O _{asserted. RST is active low.}
10
IRQ
Internal Interrupt
Output
Interrupt output pin, indicating wake-up events from Stop Mode or events from
Normal and Normal request modes. IRQ is active low.
11
ADOUT1
Analog Output Pin 1 Current sense analog output.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33912
3