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参数资料
| 型号： | SAK-C509-LM |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 16 MHz, MICROCONTROLLER, PQFP100 |
| 封装： | PLASTIC, MQFP-100 |
| 文件页数： | 67/74页 |
| 文件大小： | 1607K |
| 代理商： | SAK-C509-LM |
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C509-L
Semiconductor Group
6
P9.0 - P9.7
74-77,
5-2
I/O
Port 9
is an 8-bit quasi-bidirectional I/O port with internal pullup
resistors. Port 9 pins that have 1's written to them are
pulled high by the internal pullup resistors, and in that
state can be used as inputs. As inputs, port 9 pins being
externally pulled low will source current (I IL, in the DC
characteristics) because of the internal pullup resistors.
Port 9 can also be switched into a bidirectional mode, in
which CMOS levels are provided. In this bidirectional
mode, each port 1 pin can be programmed individually
as input or output.
Port 9 also serves alternate compare functions. The out-
put latch corresponding to a secondary function must be
programmed to a one (1) for that function to operate.
The secondary functions are assigned to the pins of
port 9 as follows :
P9.0-P9.7 CC10-CC17
Compare/capture channel 0-7
output/input
XTAL2
12
–
XTAL2
is the input to the inverting oscillator amplifier and input
to the internal clock generator circuits.
When supplying the C509-L with an external clock
source, XTAL2 should be driven, while XTAL1 is left
unconnected. A duty cycle of 0.4 to 0.6 of the clock
signal is required. Minimum and maximum high and low
times as well as rise/fall times specified in the AC
characteristics must be observed.
XTAL1
13
–
XTAL1
Output of the inverting oscillator amplifier. This pin is
used for the oscillator operation with crystal or ceramic
resonartor
*) I = Input
O = Output
Table 1
Pin Denitions and Functions (cont’d)
Symbol
Pin Number
I/O*)
Function
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