- 您现在的位置：买卖IC网 > PDF目录11717 > MC33689DWB (Freescale Semiconductor)IC SYSTEM BASE W/LIN 32-SOIC PDF资料下载
参数资料
| 型号： | MC33689DWB |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 14/31页 |
| 文件大小： | 0K |
| 描述： | IC SYSTEM BASE W/LIN 32-SOIC |
| 标准包装： | 42 |
| 应用： | 自动镜像控制 |
| 接口： | SPI |
| 电源电压： | 5.5 V ~ 18 V |
| 封装/外壳： | 32-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 32-SOIC |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
| 配用： | KIT33689DWBEVB-ND - KIT FOR 33689 SBC WITH LIN |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页当前第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页
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
相关PDF资料 |
PDF描述 |
|---|---|
| MC33742SDW | IC SYSTEM BASE W/LIN 28-SOIC |
| MC33742SDWR2 | IC SYSTEM BASE W/LIN 28-SOIC |
| MC33689DDWB | IC SYSTEM BASE W/LIN 32-SOIC |
| C8051T602-GM | IC 8051 MCU 4K-EEPROM 11-QFN |
| D38999/20ME99PN | CONN RCPT 23POS WALL MNT W/PINS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC33689DWBR2 | 功能描述:CAN 接口集成电路 SBCLIN RoHS:否 制造商:Texas Instruments 类型:Transceivers 工作电源电压:5 V 电源电流: 工作温度范围:- 40 C to + 85 C 封装 / 箱体:SOIC-8 封装:Tube |
| MC33690DWE | 功能描述:数字信号处理器和控制器 - DSP, DSC STAND ALONE TAG READER RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
| MC33690DWER2 | 功能描述:数字信号处理器和控制器 - DSP, DSC STAND ALONE TAG READER RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
| MC33696FCAE | 功能描述:射频收发器 UHF TRANSCEIVER RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray |
| MC33696FCAER2 | 功能描述:射频收发器 UHF TRANSCEIVER ECHO RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray |
发布紧急采购，3分钟左右您将得到回复。