參數資料
型號： SAFC161K
廠商： INFINEON TECHNOLOGIES AG
英文描述： 16-Bit Single-Chip Microcontroller
中文描述： 16位單片機
文件頁數： 41/66頁
文件大小： 1102K
代理商： SAFC161K
C161K
C161O
Data Sheet
37
V2.0, 2001-01
Prescaler Operation
When prescaler operation is configured (CLKCFG = 1XX
B
) the CPU clock is derived
from the internal oscillator (input clock signal) by a 2:1 prescaler.
The frequency of
f
CPU
is half the frequency of
f
OSC
and the high and low time of
f
CPU
(i.e.
the duration of an individual TCL) is defined by the period of the input clock
f
OSC
.
The timings listed in the AC Characteristics that refer to TCLs therefore can be
calculated using the period of
f
OSC
for any TCL.
Direct Drive
When direct drive is configured (CLKCFG = 0XX
B
) the CPU clock is directly driven from
the internal oscillator with the input clock signal.
The frequency of
f
CPU
directly follows the frequency of
f
OSC
so the high and low time of
f
CPU
(i.e. the duration of an individual TCL) is defined by the duty cycle of the input clock
f
OSC
.
The timings listed below that refer to TCLs therefore must be calculated using the
minimum TCL that is possible under the respective circumstances. This minimum value
can be calculated via the following formula:
TCL
min
= 1/
f
OSC
×
DC
min
(DC = duty cycle)
For two consecutive TCLs the deviation caused by the duty cycle of
f
OSC
is compensated
so the duration of 2TCL is always 1/
f
OSC
. The minimum value TCL
min
therefore has to
be used only once for timings that require an odd number of TCLs (1, 3,
…
). Timings that
require an even number of TCLs (2, 4,
…
) may use the formula 2TCL = 1/
f
OSC
.
Table 9
CLKCFG
(P0H.7-5)
0 X X
1 X X
C161K/O Clock Generation Modes
CPU Frequency
f
CPU
=
f
OSC
×
F
Input Range
f
OSC
×
1
1 to 25 MHz
f
OSC
/ 2
2 to 50 MHz
External Clock
Notes
Direct drive
1)
CPU clock via prescaler
1)
The maximum frequency depends on the duty cycle of the external clock signal.
相關PDF資料
PDF描述
SAFC161O 16-Bit Single-Chip Microcontroller
SAF-C161PI 16-Bit Single-Chip Microcontroller
SAF-C166 16-Bit Single-Chip Microcontroller
SAFC161PI 16-Bit Single-Chip Microcontroller
SAFC166 16-Bit Single-Chip Microcontroller
相關代理商/技術參數
參數描述
SAF-C161K 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:16-Bit Single-Chip Microcontroller
SAF-C161K-L25M 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:16-Bit Single-Chip Microcontroller
SAF-C161K-LM 制造商:Infineon Technologies AG 功能描述:16BIT MCU ROM/ROMLESS MQFP80 161
SAF-C161K-LM 3V 制造商:Infineon Technologies AG 功能描述:16BIT MCU ROM/ROMLESS MQFP80 161
SAF-C161K-LM 3V HA 功能描述:16位微控制器 - MCU 16BIT SNGLChip MICRO CONTROLLER 5V RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數據總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數據 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 安裝風格:SMD/SMT
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