參數(shù)資料
型號(hào)： MM908E626AVDWB
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO54
封裝： 17.90 X 7.50 MM, 0.65 MM PITCH, LEAD FREE, PLASTIC, SOIC-54
文件頁數(shù)： 25/44頁
文件大小： 833K
代理商： MM908E626AVDWB
Analog Integrated Circuit Device Data
Freescale Semiconductor
31
908E626
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
in the transmitter, software is advised to turn the transmitter
off immediately.
1 = Transmitter operating in current limitation region.
0 = Transmitter not operating in current limitation
region.
HVDD_OCF—HVDD Output Over-current Flag Bit
This read/write flag is set on an over-current condition at
the HVDD pin. Clear HVDD_OCF and enable the output by
writing a logic [1] to the HVDD_OCF Flag. Reset clears the
HVDD_OCF bit. Writing a logic [0] to HVDD_OCF has no
effect.
1 = Over-current condition on HVDD has occurred.
0 = No over-current condition on HVDD has occurred.
LVF—Low Voltage Bit
This read only bit is a copy of the LVF bit in the Interrupt
Flag Register.
1 = Low voltage condition has occurred.
0 = No low voltage condition has occurred.
HVF—High Voltage Sensor Bit
This read-only bit is a copy of the HVF bit in the Interrupt
Flag Register.
1 = High voltage condition has occurred.
0 = No high voltage condition has occurred.
HB_OCF—H-bridge Over-current Flag Bit
This read / write flag is set on an over-current condition at
the H-bridges. Clear HB_OCF and enable the H-bridge driver
by writing a logic [1] to HB_OCF. Reset clears the HB_OCF
bit. Writing a logic [0] to HB_OCF has no effect.
1 = Over-current condition on H-bridges has occurred.
0 = No over-current condition on H-bridges has
occurred.
HTF—Over-temperature Status Bit
This read-only bit is a copy of the HTF bit in the Interrupt
Flag Register.
1 = Over-temperature condition has occurred.
0 = No over-temperature condition has occurred.
AUTONOMOUS WATCHDOG (AWD)
The Autonomous Watchdog module consists of three
functions:
Watchdog function for the CPU in RUN mode
Periodic interrupt function in STOP mode
The Autonomous Watchdog module allows to protect the
CPU against code runaways.
The AWD is enabled if AWDIE, AWDRE in the AWDCTL
Register is set. If this bit is cleared, the AWD oscillator is
disabled and the watchdog switched off.
Watchdog
The watchdog function is only available in RUN mode. On
setting the AWDRE bit, watchdog functionality in RUN mode
is activated. Once this function is enabled, it is not possible to
disable it via software.
If the timer reaches end value and AWDRE is set, a
system reset is initiated. Operations of the watchdog function
cease in STOP mode. Normal operation will be continued
when the system is back to RUN mode.
To prevent a watchdog reset, the watchdog timeout
counter must be reset before it reaches the end value. This is
done by a write to the AWDRST bit in the AWDCTL Register.
PERIODIC INTERRUPT
Periodic interrupt is only available in STOP mode. It is
enabled by setting the AWDIE bit in the AWDCTL Register. If
AWDIE is set, the AWD wakes up the system after a fixed
period of time. This time period can be selected with bit
AWDR in the AWDCTL Register.
Autonomous Watchdog Control Register (AWDCTL)
Bit7
6
5
4
3
2
1
Bit0
Read
Write
Reset
17.
This bit must always be set to 0.
AWDRST—Autonomous Watchdog Reset Bit
This write-only bit resets the Autonomous Watchdog
timeout period. AWDRST always reads 0. Reset clears
AWDRST bit.
1 = Reset AWD and restart timeout period.
0 = No effect.
AWDRE—Autonomous Watchdog Reset Enable Bit
This read/write bit enables resets on AWD time-outs. A
reset on the RST_A is asserted when the Autonomous
Watchdog has reached the timeout and the Autonomous
Watchdog is enabled. AWDRE is one-time setable (write
once) after each reset. Reset clears the AWDRE bit.
1 = Autonomous watchdog enabled.
0 = Autonomous watchdog disabled.
Autonomous Watchdog Interrupt Enable Bit (AWDIE)
This read/write bit enables CPU interrupts by the
Autonomous Watchdog timeout flag, AWFD. IRQ_A is only
asserted when the device is in STOP mode. Reset clears the
AWDIE bit.
1 = CPU interrupt requests from AWDF enabled
0 = CPU interrupt requests from AWDF disabled
Register Name and Address: AWDCTL - $0a
00
0
AWDRE
AWDIE
0
AWDR
AWDRST
00
0
Notes
相關(guān)PDF資料
PDF描述
MM908E626AVEK FLASH, 32 MHz, MICROCONTROLLER, PDSO54
MMAD1108R2 0.4 A, 8 ELEMENT, SILICON, SIGNAL DIODE
MMBD1504A-TP 0.2 A, 2 ELEMENT, SILICON, SIGNAL DIODE
MMBD1505A-TP 0.2 A, 2 ELEMENT, SILICON, SIGNAL DIODE
MMBD2837LT3 0.15 A, 2 ELEMENT, SILICON, SIGNAL DIODE, TO-236AB
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MM908E626AVDWB/R2 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Stepper Motor Driver with Embedded MCU and LIN Serial Communication
MM908E626AVEK 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 QUADSTEPPER W/MCU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
MM908E626AVPEK 功能描述:8位微控制器 -MCU MCU + LIN + MOTOR DRIVER RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MM908E626AVPEKR2 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MM908E626R2 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Stepper Motor Driver with Embedded MCU and LIN Serial Communication
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*