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参数资料
| 型号： | SAB-C161O-L16M |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, 16 MHz, MICROCONTROLLER, PQFP80 |
| 封装： | 0.65 MM PITCH, PLASTIC, MQFP-80 |
| 文件页数： | 11/43页 |
| 文件大小： | 741K |
| 代理商： | SAB-C161O-L16M |
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Semiconductor Group
18
1996 Intermediate Version
C161
Parallel Ports
The C161 provides up to 63 I/O lines which are organized into six input/output ports and one input
port. All port lines are bit-addressable, and all input/output lines are individually (bit-wise)
programmable as inputs or outputs via direction registers. The I/O ports are true bidirectional ports
which are switched to high impedance state when configured as inputs. The output drivers of three
I/O ports can be configured (pin by pin) for push/pull operation or open-drain operation via control
registers. During the internal reset, all port pins are configured as inputs.
All port lines have programmable alternate input or output functions associated with them. PORT0
and PORT1 may be used as address and data lines when accessing external memory, while Port 4
outputs the additional segment address bits A21/19/17...A16 in systems where segmentation is
enabled to access more than 64 KBytes of memory. Port 6 provides optional chip select signals.
Port 3 includes alternate functions of timers, serial interfaces and the optional bus control signal
BHE. Port 5 is used for timer control signals. All port lines that are not used for these alternate
functions may be used as general purpose I/O lines.
Watchdog Timer
The Watchdog Timer represents one of the fail-safe mechanisms which have been implemented to
prevent the controller from malfunctioning for longer periods of time.
The Watchdog Timer is always enabled after a reset of the chip, and can only be disabled in the time
interval until the EINIT (end of initialization) instruction has been executed. Thus, the chip’s start-up
procedure is always monitored. The software has to be designed to service the Watchdog Timer
before it overflows. If, due to hardware or software related failures, the software fails to do so, the
Watchdog Timer overflows and generates an internal hardware reset and pulls the RSTOUT pin low
in order to allow external hardware components to be reset.
The Watchdog Timer is a 16-bit timer, clocked with the system clock divided either by 2 or by 128.
The high byte of the Watchdog Timer register can be set to a prespecified reload value (stored in
WDTREL) in order to allow further variation of the monitored time interval. Each time it is serviced
by the application software, the high byte of the Watchdog Timer is reloaded. Thus, time intervals
between 32
s and 524 ms can be monitored (@ 16 MHz). The default Watchdog Timer interval
after reset is 8.19 ms (@ 16 MHz).
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SAB-C161O-L25M | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Infineon Technologies AG 功能描述:Micro,16-Bit,2KB RAM ,25Mhz |
| SAB-C161O-L25M HA | 功能描述:16位微控制器 - MCU 16-Bit SNGL-Chip Microcontroller RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT |
| SABC161OL25MHA | 功能描述:16位微控制器 - MCU RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT |
| SAB-C161O-L25M-HA | 制造商:Rochester Electronics LLC 功能描述: 制造商:Infineon Technologies AG 功能描述: |
| SABC161OL25MHAXT | 制造商:Infineon Technologies AG 功能描述:MCU 16-Bit C166 CISC/RISC ROMLess 5V 80-Pin MQFP |
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