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參數(shù)資料
| 型號： | KIT33689DWBEVB |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 14/31頁 |
| 文件大?。?/td> | 0K |
| 描述： | KIT FOR 33689 SBC WITH LIN |
| 標準包裝： | 1 |
| 主要目的： | LIN 接口 |
| 已用 IC / 零件： | MC33689 |
| 相關產(chǎn)品： | MC33689DDWBR2CT-ND - IC SYSTEM BASE W/LIN 32-SOIC MC33689DWBR2-ND - IC SYSTEM BASE W/LIN 32-SOIC MC33689DWB-ND - IC SYSTEM BASE W/LIN 32-SOIC MC33689DDWBR2TR-ND - IC SYSTEM BASE W/LIN 32-SOIC MC33689DDWB-ND - IC SYSTEM BASE W/LIN 32-SOIC |
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Analog Integrated Circuit Device Data
Freescale Semiconductor
21
33689
FUNCTIONAL DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
WINDOW WATCHDOG
The window watchdog can be configured using an external
resistor at WDC pin. The watchdog is cleared through
MODE1 and MODE2 bit in the SPI Register (refer to Table 2,
page 24; also refer to the section entitled Functional Pin
A watchdog clear is only allowed in the open window (see
Figure 1). If the watchdog is cleared in the closed window or
has not been cleared at the end of the open window, the
watchdog will generate a reset on the RST pin and reset the
whole device.
Note The watchdog clear in Normal request mode
(150 ms) (first watchdog clear) has no window.
Figure 1. Window Watchdog Operation
Window Watchdog Configuration
If the WDC pin is left open, the default watchdog period is
selected (typ. 150 ms). If no watchdog function is required,
the WDC pin must be connected to GND.
The watchdog timer’s period is calculated using the
following formula:
t WDC = 0.991 * R +0.648 (with R in kΩ and t WDC in ms).
VDD VOLTAGE REGULATOR
The 33689 chip contains a low-power, low dropout voltage
regulator to provide internal power and external power for the
MCU. The on-chip regulator consist of two elements, the
main voltage regulator and the low-voltage reset circuit.
The VDD regulator accepts an unregulated input supply
and provides a regulated VDD supply to all digital sections of
the device. The output of the regulator is also connected to
the VDD pin to provide the 5.0 V to the microcontroller.
Current Limit (Overcurrent) Protection
The voltage regulator has current limit to protect the device
against overcurrent and short circuit conditions.
Overtemperature Protection
The voltage regulator also features overtemperature
protection that has an overtemperature warning (Interrupt -
VDDT) and an overtemperature shutdown.
Stop Mode
During Stop mode, the Stop mode regulator supplies a
regulated output voltage. The Stop mode regulator has a
limited output current capability.
Sleep Mode
In Sleep mode, the voltage regulator external VDD is
turned off.
VDD VOLTAGE REGULATOR TEMPERATURE
PREWARNING
VDD voltage regulator temperature prewarning (VDDT) is
generated if the voltage regulator temperature is above the
TPRE threshold. It will set the VDDT bit in the SPI Register
and an interrupt will be initiated. The VDDT bit remains set as
long as the error condition is present.
During Sleep and Stop modes the VDD voltage regulator
temperature prewarning circuitry is disabled.
HIGH-SIDE SWITCH THERMAL SHUTDOWN
The high-side switch thermal shutdown HSST is
generated if one of the high-side switches HS1:HS3 is above
the HSST threshold. It will shutdown all high-side switches
and set the HSST flag in the SPI Register, and an interrupt
will be initiated. The HSST bit remains set as long as the error
condition is present. During Sleep and Stop modes the high-
side switch thermal shutdown circuitry is disabled.
Window Closed.
Window Open
tWDC * 50%
Watchdog Period
for Watchdog Clear
No Watchdog Clear Allowed
tWDC
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| KIT33701DWBEVB | 功能描述:電源管理IC開發(fā)工具 33701 - QS1 EVAL KIT RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| KIT33702DWBEVB | 功能描述:電源管理IC開發(fā)工具 33702 - QS2 EVAL KIT RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| KIT33730EKEVBE | 功能描述:電源管理IC開發(fā)工具 SWITCH MODE PWR SUP RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| KIT33742DWEVB | 功能描述:網(wǎng)絡開發(fā)工具 SBC WITH EHSCAN RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V |
| KIT3376MMA7330L | 功能描述:加速傳感器開發(fā)工具 XYZ-AXIS ANALOG ACCELERO RoHS:否 制造商:Murata 工具用于評估:SCA3100-D04 加速:2 g 傳感軸:Triple Axis 接口類型:SPI 工作電壓:3.3 V |
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