MM908E622ACDWBR2 FREESCALE [Freescale Semiconductor, Inc], MM908E622ACDWBR2 Datasheet - Page 24

• Manufacturer Part Number: MM908E622ACDWBR2
• Description: Integrated Quad Half-bridge, Triple High Side and EC Glass Driver with Embedded MCU and LIN for High End Mirror
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

CONTROL & INTERFACE:
HALL SENSOR INTERFACE
a general purpose input, or as a hall-effect sensor input to be
able to read 3-pin / 2-pin hall sensors or switches.
SPI INTERFACE & PWM CONTROL
(CPU), and are used to control the output functions of the
Analog IC, as well as to report status and failure information
of the Analog IC.
LIN INTERFACE
transmit and receive capabilities. It is suited for automotive
bus systems, and is based on the LIN bus/physical layer
specification. The LIN driver is a low side MOSFET with slope
control, internal current limitation, and thermal shutdown.
ANALOG MULTIPLEXER
single signal, an analog multiplexer is integrated in the analog
IC. This multiplexer has eleven different sources on the
Analog IC, which can be selected with the SS[3:0] bits
(through SPI communication) in the A0MUCTL register.
ANALOG INPUT W/INTEGRATED CURRENT
SOURCE
the reading of switches, NTC, etc., without the need for an
additional supply line for the sensor (single wire). There are
four different selectable current source values.
OUTPUTS:
HIGH SIDE DRIVERS & DIAGNOSTICS
Each HS switch is protected against over-temperature and
over-current. The output is capable of limiting the inrush
current with an automatic PWM, or feature a real PWM
capability using the PWM input.
H-BRIDGE DRIVERS & DIAGNOSTICS
half-bridge driver outputs. These outputs are short-circuit and
over-temperature protected. Over-current protection is done
on both high side and low side MOSFETs.
24
908E622
FUNCTIONAL DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
This interface can be configured to support an input pin as
The SPI and PWM interfaces are mastered by the core IC
The LIN interface function supports the single wire bus
To be able to have different sources for the MCU with one
The A0 pin provides a switchable current source to allow
The HS outputs are low RDS(ON) high side switches.
The device includes power MOSFETs configured as four
ELECTROCHROME GLASS DRIVER &
DIAGNOSTICS
adjust the transparency of an electrochrome glass, and
to control the reflection of a rear view mirror. The value
of the voltage can be adjusted by the use of an on-chip
DA converter.
MM68HC908EY16 CORE IC -
M68HC08 CPU W/ALU, RAM, FLASH ROM
architecture, along with 512 bytes of RAM and 15,872 bytes
of FLASH memory, with in-circuit programming.
POWER MODULE W/P0WER-ON-RESET
core IC, as well as providing POR, LVI, Watchdog timer, and
MCU supervision circuitry (COP).
INTERNAL CLOCK MODULE
functions, without the need for external components.
Software selectable bus frequencies are available. It also
provides a clock monitor function.
10-BIT ADC MODULE
approximation analog-to-digital converter (ADC).
I/O PORTS A, B, C, D, E
through the several I/O ports of the core IC.
TIMER MODULES
with selectable input capture, output compare, and PWM
capabilities for each channel.
COMMUNICATION MODULES
the core IC, including an enhanced serial communication
interface module (ESCI) for the LIN communication, and an
SPI module for inter-IC communication.
RESET & IRQ
Analog IC and the core IC, for concise control and error/
exception management.
The driver provides a controlled voltage, in order to
This possesses the functionality of the CPU08
This block of circuitry manages the power supplied to the
This module provides the clocks needed by the core IC
This module provides an 8-channel, 10-bit successive
There are many I/O pins that are controlled by the CPU
There are two 16-bit, 2 channel timer interface modules
There are several communication functions supported by
There are interrupt and reset connections between the
Analog Integrated Circuit Device Data
Freescale Semiconductor