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| 型号： | MC33911BAC |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 72/92页 |
| 文件大小： | 0K |
| 描述： | IC SYSTEM BASIS CHIP 32LQFP |
| 标准包装： | 250 |
| 应用： | 系统基础芯片 |
| 电流 - 电源： | 4.5mA |
| 电源电压： | 5.5 V ~ 27 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-LQFP |
| 供应商设备封装： | 32-LQFP（7x7） |
| 包装： | 托盘 |
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MC33911BAC / MC34911BAC
FUNCTIONAL DEVICE OPERATIONS
OPERATIONAL MODES
Table 36. Operating Modes Overview
Function
VDD
LSx
HS1
Analog Mux
Lx
LIN
Watchdog
VSENSE
Reset Mode
Full
-
-
-
-
-
-
On
Normal Request Mode
Full
SPI/PWM (123)
SPI/PWM (123)
SPI
Inputs
Rx-Only
150 ms (typ.) timeout
On
Normal Mode
Full
SPI/PWM
SPI/PWM
SPI
Inputs
full/Rx-Only
On (126) /Off
On
Stop Mode
Stop
-
Note (124)
-
Wake-up
Rx-Only/Wake-up
-
VDD
Sleep Mode
-
-
Note (125)
-
Wake-up
Wake-up
-
-
Notes
123.
124.
125.
126.
Operation can be controlled by the PWMIN input.
HS switch can be configured for cyclic sense operation in Stop mode.
HS switch can be configured for cyclic sense operation in Sleep mode.
Windowing operation when enabled by an external resistor.
INTERRUPTS
Interrupts are used to signal a microcontroller that a
peripheral needs to be serviced. The interrupts which can be
generated change according to the operating mode. While in
Normal and Normal Request modes, the 33911 signals
through interrupts special conditions which may require a
MCU software action. Interrupts are not generated until all
pending wake-up sources are read in the Interrupt Source
Register (ISR).
While in Stop mode, interrupts are used to signal wake-up
events. Sleep mode does not use interrupts, wake-up is
performed by powering-up the MCU. In Normal and Normal
Request mode the wake-up source can be read by the SPI.
The interrupts are signaled to the MCU by a low logic level of
the IRQ pin, which will remain low unt il the interrupt is
acknowledged by a SPI read. The IRQ pin will then be driven
high.
Interrupts are only asserted while in Normal, Normal Request
and Stop mode. Interrupts are not generated while the RST
pin is low.
Following is a list of the interrupt sources in Normal and
Normal Request modes, some of those can be masked by
writing to the SPI-Interrupt Mask Register (IMR).
Low-voltage Interrupt
The low-voltage interrupt signals when the supply line (VS1)
voltage drops below the VSUV threshold ( V SUV ).
High-voltage Interrupt
The high-voltage interrupt signals when the supply line (VS1)
voltage increases above the VSOV threshold ( V SOV ).
Over-temperature Prewarning
Over-temperature prewarning signals when the 33911
temperature has reached the pre-shutdown warning
threshold. It is used to warn the MCU that an over-
temperature shutdown in the main 5.0 V regulator is
imminent.
LIN Over-current Shutdown / Over-temperature
Shutdown / TXD Stuck At Dominant / RXD Short-Circuit
These signal fault conditions within the LIN interface will
cause the LIN driver to be disabled, except for the LIN over-
current. In order to restart an operation, the fault must be
removed and must be acknowledged by reading the SPI.
The LINOC bit functionality in the LIN Status Register
(LINSR) is to indicate that an LIN over-current occurred and
the driver stays enabled.
High Side Over-temperature Shutdown
The high side over-temperature shutdown signals a
shutdown in the high side output.
Low Side Over-temperature Shutdown
The low side over-temperature shutdown signals a shutdown
in the low side outputs.
33911
Analog Integrated Circuit Device Data ?
Freescale Semiconductor
72
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MC33911BACR2 | 功能描述:LIN 收发器 SBC LIN2G MEDIUM END RoHS:否 制造商:NXP Semiconductors 工作电源电压: 电源电流: 最大工作温度: 封装 / 箱体:SO-8 |
| MC33911G5AC | 功能描述:LIN 收发器 SBC LIN 2.5G Medium end RoHS:否 制造商:NXP Semiconductors 工作电源电压: 电源电流: 最大工作温度: 封装 / 箱体:SO-8 |
| MC33911G5ACR2 | 功能描述:LIN 收发器 SBC LIN 2.5G Medium end RoHS:否 制造商:NXP Semiconductors 工作电源电压: 电源电流: 最大工作温度: 封装 / 箱体:SO-8 |
| MC33912BAC | 功能描述:LIN 收发器 SBC LIN2G - HI END RoHS:否 制造商:NXP Semiconductors 工作电源电压: 电源电流: 最大工作温度: 封装 / 箱体:SO-8 |
| MC33912BACR2 | 功能描述:LIN 收发器 SBC LIN2G - HI END RoHS:否 制造商:NXP Semiconductors 工作电源电压: 电源电流: 最大工作温度: 封装 / 箱体:SO-8 |
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