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| 型號： | PM908E624ACDWBR2 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO54 |
| 封裝： | PLASTIC, SOIC-54 |
| 文件頁數(shù)： | 9/24頁 |
| 文件大?。?/td> | 718K |
| 代理商： | PM908E624ACDWBR2 |
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
908E624
17
SYSTEM/APPLICATION INFORMATION
INTRODUCTION
The 908E624 was designed and developed as a highly
integrated and cost-effective solution for automotive and
industrial applications. For automotive body electronics, the
908E624 is well suited to perform relay control in applications
like window lift, sunroof, etc., via a three-wire LIN bus.
The 908E624 combines an HC08 MCU core with flash
memory together with a SmartMOS IC chip. The SmartMOS IC
chip combines power and control in one chip. Power switches
are provided on the SmartMOS IC configured as high-side
output. Other ports are also provided, which include
Operational Amplifier port and two wake-up terminals. An
internal voltage regulator provides power to the MCU chip.
Also included in this device is a LIN physical layer, which
communicates using a single wire. This enables this device to
be compatible with three-wire bus systems, where one wire is
used for communication, one for battery, and the third for
ground.
STATE MACHINE DESCRIPTION
Figure 6 describes how transitions are done between the
different operating modes.
Figure 6. State Machine
RESET
Normal
Request
NORMAL
STOP
SLEEP
Power
Down
VDD Low (150 ms) expired and VSUV = 0 V
VDD high & Reset counter (1ms) expired & W/D not selected
VDD High and Reset counter
(1 ms) expired and
WD not selected
VDD Low OR (NR time-out
occurs (150 ms) and
WD selected)
VDD Low and WD fail
and WD selected
W
/D
T
rigger
ST
OP
Command
SLEEP
Command
W
ake-Up
Wake-Up
VDD Low
Po
w
e
rU
p
WD = Watchdog
NR = Normal Request
WD selected means external resistor between WDCONF pin and GND or WDCONF pin open.
WD not selected means WDCONF pin connected to GND.
WD fail means WD trigger occurs in closed window or no SPI WD trigger command.
STOP command means STOP command sent via SPI.
SLEEP command means SPI sleep request followed by SPI SLEEP command.
Wake-up means L1 or L2 state change or LIN bus wake-up or SSB rising edge.
VDD High and Reset counter (1.0 ms) expired and WD not selected
VDD High and Reset counter
(1.0 ms) expired and
WD not selected
Reset
Normal
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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