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| 型号： | MC33911BAC |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 67/92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 DESCRIPTION
INTRODUCTION
FUNCTIONAL DESCRIPTION
INTRODUCTION
The 33911 was designed and developed as a highly
integrated and cost-effective solution for automotive and
industrial applications. For automotive body electronics, the
33911 is well suited to perform relay control in applications
like window lift, sunroof, etc. via a LIN bus.
Power switches are provided on the device configured as
high side and low side outputs. Other ports are also provided,
which include a voltage sense port and two wake-up capable
pins. An internal voltage regulator provides power to a MCU
device.
Also included in this device is a LIN physical layer, which
communicates using a single wire. This enables this device
to be compatible with 3-wire bus systems, where one wire is
used for communication, one for battery, and one for ground.
FUNCTIONAL PIN DESCRIPTION
See Figure 1, 33911 Simplified Application Diagram , for a
graphic representation of the various pins referred to in the
diagram for a description of the pin locations in the package.
RECEIVER OUTPUT (RXD)
The RXD pin is a digital output. It is the receiver output of the
LIN interface and reports the state of the bus voltage: RXD
Low when LIN bus is dominant, RXD High when LIN bus is
recessive.
TRANSMITTER INPUT (TXD)
The TXD pin is a digital input. It is the transmitter input of the
LIN interface and controls the state of the bus output
(dominant when TXD is Low, recessive when TXD is High).
This pin has an internal pull-up to force recessive state in
case the input is left floating.
LIN BUS (LIN)
The LIN pin represents the single-wire bus transmitter and
receiver. It is suited for automotive bus systems and is
compliant to the LIN bus specification 2.0.
The LIN interface is only active during Normal and Normal
Request modes.
SERIAL DATA CLOCK (SCLK)
The SCLK pin is the SPI clock input pin. MISO data changes
on the negative transition of the SCLK. MOSI is sampled on
the positive edge of the SCLK.
MASTER OUT SLAVE IN (MOSI)
The MOSI digital pin receives SPI data from the MCU. This
data input is sampled on the positive edge of SCLK.
MASTER IN SLAVE OUT (MISO)
The MISO pin sends data to a SPI-enabled MCU. It is a digital
tri-state output used to shift serial data to the microcontroller.
Data on this output pin changes on the negative edge of the
SCLK. When CS is High, this pin will remain in high-
impedance state.
CHIP SELECT (CS)
CS is an active low digital input. It must remain low during a
valid SPI communication and allow for several devices to be
connected in the same SPI bus without contention. A rising
edge on CS signals the end of the transmission and the
moment the data shifted in is latched. A valid transmission
must consist of 8 bits only.
While in STOP mode a low-to-high level transition on this pin
will generate a wake-up condition.
ANALOG MULTIPLEXER (ADOUT0)
The ADOUT0 pin can be configured via the SPI to allow the
MCU A/D converter to read the several inputs of the Analog
Multiplexer, including the VSENSE, L1, L2 input voltages and
the internal junction temperature.
PWM INPUT CONTROL (PWMIN)
This digital input can control the high side and low side
drivers in Normal Request and Normal mode.
To enable PWM control, the MCU must perform a write
operation to the High Side Control Register (HSCR), or the
Low Side Control Register (LSCR).
This pin has an internal 20 ? A current pull-up.
RESET (RST)
This bidirectional pin is used to reset the MCU in case the
33911 detects a reset condition, or to inform the 33911 that
the MCU was just reset. After release of the RST pin Normal
Request mode is entered.
The RST pin is an active low filtered input and output formed
by a weak pull-up and a switchable pull-down structure,
which allows this pin to be shorted either to V DD or to GND
during software development without the risk of destroying
the driver.
INTERRUPT (IRQ)
The IRQ pin is a digital output used to signal events or faults
to the MCU while in Normal and Normal Request mode or to
signal a wake-up from Stop mode. This active low output will
transition high only after the interrupt is acknowledged by a
SPI read of the respective status bits.
33911
Analog Integrated Circuit Device Data ?
67
Freescale Semiconductor
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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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