參數(shù)資料
型號： SAB-C161S-L25M AA
廠商： Infineon Technologies
文件頁數(shù)： 21/75頁
文件大?。?/td> 0K
描述： IC MICROCONTROLLER 16BIT MQFP80
標(biāo)準(zhǔn)包裝： 850
系列： C16xx
核心處理器： C166
芯體尺寸： 16-位
速度： 25MHz
連通性： EBI/EMI，SPI，UART/USART
外圍設(shè)備： POR，PWM，WDT
輸入/輸出數(shù)： 63
程序存儲器類型： ROMless
RAM 容量： 2K x 8
電壓 - 電源 (Vcc/Vdd)： 4.5 V ~ 5.5 V
振蕩器型： 外部
工作溫度： 0°C ~ 70°C
封裝/外殼： 80-QFP
包裝： 帶卷 (TR)
其它名稱： B161SL25MAAXT
C161SL25MAABAUMA1
C161SL25MAABXUMA1
SABC161SL25MAAXT
SP000014739
C161S
Functional Description
Data Sheet
24
V1.0, 2003-11
3.9
Oscillator Watchdog
The Oscillator Watchdog (OWD) monitors the clock signal generated by the on-chip
oscillator (either with a crystal or via external clock drive). For this operation the PLL
provides a clock signal which is used to supervise transitions on the oscillator clock. This
PLL clock is independent from the XTAL1 clock. When the expected oscillator clock
transitions are missing the OWD activates the PLL Unlock / OWD interrupt node and
supplies the CPU with the PLL clock signal. Under these circumstances the PLL will
oscillate with its basic frequency.
In direct drive mode the PLL base frequency is used directly (
f
CPU = 2 … 5 MHz).
In prescaler mode the PLL base frequency is divided by 2 (
f
CPU = 1 … 2.5 MHz).
Note: The CPU clock source is only switched back to the oscillator clock after a
hardware reset.
The oscillator watchdog can be disabled by setting bit OWDDIS in register SYSCON.
In this case (OWDDIS = ‘1’) the PLL remains idle and provides no clock signal, while the
CPU clock signal is derived directly from the oscillator clock or via prescaler or SDD. Also
no interrupt request will be generated in case of a missing oscillator clock.
Note: At the end of a reset bit OWDDIS reflects the inverted level of pin RD at that time.
Thus the oscillator watchdog may also be disabled via hardware by (externally)
pulling the RD line low upon a reset, similar to the standard reset configuration via
PORT0.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SABC161SL25MAAXT 制造商:Infineon Technologies AG 功能描述:MCU 16-Bit C166 CISC/RISC ROMLess 5V 80-Pin MQFP
SAB-C161S-LM 3V 制造商:Infineon Technologies AG 功能描述:16BIT MCU ROM/ROMLESS MQFP80 161
SAB-C161S-LM 3V AA 功能描述:16位微控制器 - MCU 16-Bit Single-Chip 3.3V 20MHz ROM less RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
SAB-C161S-LM3V 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:16-Bit Single-Chip Microcontroller
SABC161SLM3VAAXT 制造商:Infineon Technologies AG 功能描述:MCU 16-bit C166 CISC/RISC ROMLess 3.3V 80-Pin MQFP
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