欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數資料
型號: MC68HC05P18A
廠商: Motorola, Inc.
英文描述: Low Cost HCMOS Microcontroller(低成本、8位HCMOS微控制器)
中文描述: 低成本HCMOS微控制器(低成本,8位HCMOS微控制器)
文件頁數: 93/130頁
文件大小: 1200K
代理商: MC68HC05P18A
Analog-to-Digital (A/D) Converter
Digital Section
MC68HC05P18A
Technical Data
MOTOROLA
Analog-to-Digital (A/D) Converter
93
L
G
R
the beginning of the conversion cycle. The conversion process is
monotonic and has no missing codes.
11.5 Digital Section
The following paragraphs describe the operation and performance of
digital modules within the analog subsystem.
11.5.1 Conversion Times
Each input conversion requires 32 PH2 clock cycles, which must be at a
frequency equal to or greater than 1 MHz.
11.5.2 Internal versus External Oscillator
If the MCU PH2 clock frequency is less than 1 MHz (2 MHz external
oscillator), the internal RC oscillator (approximately 1.5 MHz) must be
used for the A/D converter clock. The internal RC clock is selected by
setting the EERC bit in the EEPROM program register (EEPROG).
NOTE:
The RC oscillator is shared with the EEPROM module. The RC oscillator
is disabled while the MCU is in stop mode.
When the internal RC oscillator is being used, these limitations apply:
1.
Since the internal RC oscillator is running asynchronously with
respect to the PH2 clock, the conversion complete (CC) bit in the
A/D status and control register (ADSC) must be used to determine
when a conversion sequence has been completed.
2.
Electrical noise slightly degrades the accuracy of the A/D
converter. The A/D converter is synchronized to read voltages
during the quiet period of the clock driving it. Since the internal and
external clocks are not synchronized, the A/D converter
occasionally measures an input when the external clock is making
a transition.
3.
If the PH2 clock is 1 MHz or greater (for example, external
oscillator 2 MHz or greater), the internal RC oscillator should be
turned off and the external oscillator used as the conversion clock.
相關PDF資料
PDF描述
MC68HC05P4A 28-pin MCU (microcontroller unit) based on the MC68HC05P4(28引腳、基于MC68HC05P4升級的8位微控制器單元)
MC68HC05PV8A Low Cost HCMOS Microcontroller(低成本、8位HCMOS微控制器)
MC68HC05SR3 8-Bit Microcontroller Units (MCU).(8位微控制器)
MC68HC05V7 8-Bit Microcontroller Units (MCU).(8位微控制器)
MC68HC05X16 8-Bit Microcontroller Units (MCU).(8位微控制器)
相關代理商/技術參數
參數描述
MC68HC05P18ACDW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P18ACP 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P18ADW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P18AMDW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P18AMP 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
主站蜘蛛池模板: 门头沟区| 清远市| 昭通市| 泰兴市| 泸水县| 荆州市| 玛沁县| 称多县| 阿克| 开封市| 隆尧县| 桦川县| 灵川县| 凯里市| 红河县| 金门县| 沅江市| 诏安县| 肃南| 祁阳县| 庄浪县| 新野县| 静海县| 宁陵县| 星子县| 桃园县| 莲花县| 思茅市| 凯里市| 石柱| 和田县| 微博| 连平县| 治多县| 虞城县| 姚安县| 科技| 东乌珠穆沁旗| 三台县| 广昌县| 江达县|