PIN CONNECTIONS
PIN CONNECTIONS
FLASHER
FETOUT
CLOCK
13 12 11 10
CP
GND
16
17
9
8
7
6
5
4
3
2
24
14
GND
23
FETIN
1
CSNS
GND
22
OUT1
Definition
STOP
SCLK
LIMP
VCC
RST
OUT5
18
15
VBAT
19
OUT4
20
OUT3
21
OUT2
Figure 3. 35XS3500 Pin Connections (Transparent Package Top View)
Table 1. 35XS3500 Pin Definitions
Functional descriptions these pins can be found in the
section beginning on
Pin
1
2
3
Pin Name
Pin Function
Input
Input
Input
Formal Name
External FET Input
Ignition Input
(Active High)
Reset
FETIN
IGN
RST
This pin is the current sense recopy of the external MOSFET.
This input wakes the device. It also controls outputs 1 and 2 in case of Fail
mode activation. This pin has a passive internal pull-down.
This input wakes the device. It is also used to initialize the device
configuration and fault registers through the SPI. This pin has a passive
internal pull-down.
This input wakes the device. This pin has a passive internal pull-down.
This pin state depends on RST logic level.
As long as RST input pin is set to logic [0], this pin is pulled up in order to
report wake event. Otherwise, the PWM frequency and timing are
generated from this digital clock input by the PWM module.
This pin has a passive internal pull-down.
The Fail mode can be activated by this digital input. This pin has an active
internal pull-down current source.
This input wakes the device. This pin has a passive internal pull-down.
When this signal is high, SPI signals are ignored. Asserting this pin low
starts a SPI transaction. The transaction is signaled as completed when
this signal returns high. This pin has a passive internal pull-up resistance.
This input pin is connected to the master microcontroller providing the
required bit shift clock for SPI communication. This pin has a passive
internal pull-down resistance.
35XS3500
4
5
FLASHER
CLOCK
Input
Input
Flasher Input
(Active High)
Clock Input
6
7
8
LIMP
STOP
CS
Input
Input
Input
Limp Home Input
(Active High)
Stop Light Input
(Active High)
Chip Select
(Active Low)
SPI Clock Input
9
SCLK
Input
Analog Integrated Circuit Device Data
Freescale Semiconductor
IGN
SO
SI
CS
3
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
