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: MC68HC11A8BMP2
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: HCMOS Single-Chip Microcontroller
中文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDIP48
封裝: DIP-48
文件頁數: 68/158頁
文件大小: 776K
代理商: MC68HC11A8BMP2
MOTOROLA
7-4
ANALOG-TO-DIGITAL CONVERTER
MC68HC11A8
TECHNICAL DATA
7
CAUTION
When the multiple channel continuous scan mode is used, extra care
is needed in the design of circuitry driving the A/D inputs. Refer to the
A/D Pin Model and A/D Conversion Sequence figures in addition to
the following discussion. The charge on the capacitive DAC array pri-
or to the sample time is related to the voltage on the previously con-
verted channel. A charge share situation exists between the internal
DAC capacitance and the external circuit capacitance. Although the
amount of charge involved is small the rate at which it is repeated is
every 64 microseconds for an E clock of 2 MHz. The RC charging
rate of the external circuit must be balanced against this charge shar-
ing effect to avoid accuracy errors.
CD — Channel Select D
CC — Channel Select C
CB — Channel Select B
CA — Channel Select A
These four bits are used to select one of 16 A/D channels (see
Table 7-1
). When a
multiple channel mode is selected (MULT = 1), the two least-significant channel select
bits (CB and CA) have no meaning and the CD and CC bits specify which group of four
channels are to be converted. The channels selected by the four channel select control
bits are shown in
Table 7-1
.
*Not available in 48-pin package versions.
**This group of channels used during factory test.
Table 7-1 Analog-to-Digital Channel Assignments
Channel
Signal
AN0
AN1
AN2
AN3
AN4*
AN5*
AN6*
AN7*
Reserved
Reserved
Reserved
Reserved
V
RH
Pin**
V
RL
Pin**
(V
RH
)/2**
Reserved**
Result in ADRx
if MULT=1
ADR1
ADR2
ADR3
ADR4
ADR1
ADR2
ADR3
ADR4
ADR1
ADR2
ADR3
ADR4
ADR1
ADR2
ADR3
ADR4
CD
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
CC
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
CB
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
CA
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
相關PDF資料
PDF描述
MC68HC11A8BVP2 HCMOS Single-Chip Microcontroller
MC68HC11A1CFN2 HCMOS Single-Chip Microcontroller
MC68HCP11A1CFN2 HCMOS Single-Chip Microcontroller
MC68HCP11A1CFN3 HCMOS Single-Chip Microcontroller
MC68HCP11A1CP2 HCMOS Single-Chip Microcontroller
相關代理商/技術參數
參數描述
MC68HC11A8BVP2 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:HCMOS Single-Chip Microcontroller
MC68HC11A8FN 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:8-Bit Microcontrollers
MC68HC11A8FN1 制造商:Motorola Inc 功能描述:
MC68HC11A8MCFN2 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:HCMOS Single-Chip Microcontroller
MC68HC11A8P1 制造商:Rochester Electronics LLC 功能描述:- Bulk
主站蜘蛛池模板: 河南省| 明溪县| 新野县| 原阳县| 游戏| 崇仁县| 封开县| 尼玛县| 文山县| 景谷| 临泽县| 丘北县| 桦甸市| 泸西县| 汝南县| 西乌珠穆沁旗| 丹凤县| 田阳县| 祁连县| 贵港市| 湟中县| 灌云县| 汶川县| 祁门县| 马关县| 临汾市| 贵阳市| 宜兰市| 宣恩县| 遵义市| 韶山市| 江永县| 兴宁市| 漳州市| 浠水县| 微博| 略阳县| 宾川县| 东安县| 平遥县| 兴隆县|