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| 型号： | MC33389CDW |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 17/49页 |
| 文件大小： | 0K |
| 描述： | IC SYSTEM BASE W/CAN 28-SOIC |
| 标准包装： | 26 |
| 控制器类型： | 系统基础芯片 |
| 接口： | CAN |
| 电源电压： | 5.5 V ~ 18 V |
| 电流 - 电源： | 45mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC W |
| 包装： | 管件 |
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Analog Integrated Circuit Device Data
24
Freescale Semiconductor
33389
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Figure 8. Typical Behavior at Power-On
Note: In the Normal Request mode, if a SPI command is
received before the software timing configuration (SWCR
register), it will not be taken into account by the SBC (except
for the go-to Emergency mode).
Correspondence Between SBC and CAN Transceiver
Modes
Table 14 provides different possible CAN transceiver
modes versus SBC modes.
Watchdog
The software window watchdog function monitors the
microcontroller operation in the Normal and Stand-by modes.
The window watchdog timing is derived from the SBC clock.
The desired watchdog timing must be first transmitted during
the SBC configuration, in the Normal Request mode, via SPI
to SWCR. It can also be changed later on. Selectable
watchdog timings are 5.0 ms, 10 ms, 20 ms, 33 ms, 50 ms,
75 ms, 100 ms and 200 ms. These timings correspond to the
full disable window plus full enable window.
Figure 9. Window Watchdog Timing
As soon as the watchdog trigger is received in the Enable
Window, the internal counter is reset and begins a new
disable window. The SBC triggers the watchdog word at CS
low-to-high transition. Any watchdog trigger outside the
Enable Window leads to an SBC reset.
Normal and Stand-by Modes— The SBC get the watchdog
word from the microcontroller via SPI in the Normal mode.
In case of a trigger time failure (no trigger or trigger outside
the Enable Window) the SBC reset is switched to active.
Normal Request, Sleep, and Emergency Mode—
Watchdog is not active in these modes.
WAKE-UP CAPABILITIES
Several wake-up capabilities are available.
Forced Wake-Up
The forced wake-up is enabled and disabled by SPI in the
V3 register. It is used to automatically wake-up the system by
supplying V1 with proper reset in the Sleep mode. This
corresponds to jump into the Normal Request mode. If the
SBC is not properly configured within 75 ms, it switches back
to the Sleep mode until the next wake-up. If both Cyclic
Sense and Forced Wake-Up are enabled by the SPI while in
the Sleep mode, only Cyclic Sense is active.
The period of Forced Wake-Up are 32 ms, 64 ms, 128 ms,
256 ms, 512 ms, 1024 ms, 2048 ms, and 8192 ms chosen by
SPI in the Cyclic Timing Control Register (CYTCR).
Wake-Up Inputs (Local Wake-Up)/Cyclic Sense
SBC provides three wake-up inputs to monitor external
events such as closing/opening of switches. The wake-up
feature is available in Normal, Stand-by, and Sleep modes.
Table 14. CAN Modes vs. SBC Modes
When SBC Is In The Following
Mode
CAN Transceiver
Can Be In
Reset Condition
Bus Stand-by Mode
Normal Request
Bus Stand-by Mode
Normal
RXTX or RXOnly or BusStand-by
Stand-by
Bus Stand-by
Sleep
Bus Stand-by
Emergency
Bus Stand-by
Normal and V2 OFF (over load)
In case V2 is turned OFF either
by SPI command (Stand-by
mode) or by the SBC itself due
to V2 over load condition (V2
short to ground or V2 over tem-
perature) the CAN is automati-
cally set into the Bus Stand-by
mode and does not return to
TXRX mode automatically
when V2 is back to 5.0 V. The
CAN must be re configured to
TXRX or RX Only mode after a
V2 turn OFF
Bus Stand-by
ECU
connected
to battery
Reset
V1 low
Normal
Sleep
Normal
V1 on
SPI SW
timing configuration
at t<75ms
No SPI SW
timing configuration
at t=75ms
(reset
released
)
Emergency
SPI go to Emergency
at t<75ms
Request
Watchdog Trigger
SBC Watchdog Window
Earliest Trigger Time
Latest
Disabled Window
Nom. Trigger Period
Time Out
Latest
SBC-Reset OUT
50%
Watchdog Timing
Enable Window
Reset
Trigger
Time
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| MC33389CDWR2 | 功能描述:网络控制器与处理器 IC SYSTEM BASIC CHIPS RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
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| MC33390D | 功能描述:IC TRANSCEIVER SER LINK 8-SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:1,000 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) |
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