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參數資料
型號: MC68HC11K1VFN4
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQCC84
封裝: PLASTIC, LCC-84
文件頁數: 60/80頁
文件大小: 420K
代理商: MC68HC11K1VFN4
MOTOROLA
60
M68HC11 K Series
MC68HC11KTS/D
9 Analog-to-Digital Converter
The analog-to-digital (A/D) converter system uses an all-capacitive charge-redistribution technique to
convert analog signals to digital values. The A/D converter system contained in M68HC11 K-series
MCUs is an 8-channel,8-bit, multiplexed-input, successive-approximation converter. It does not require
external sample and hold circuits.
The clock source for the A/D converter’s charge pump, like the clock source for the EEPROM charge
pump, is selected with the CSEL bit in the OPTION register. When the E clock is slower than 1 MHz,
the CSEL bit must be set to ensure that the successive approximation sequence for the A/D converter
will be completed before any charge loss occurs. In the case of the EEPROM, it is the efficiency of the
charge pump that is affected.
Figure 14 A/D Converter Block Diagram
The A/D converter can operate in single or multiple conversion modes. Multiple conversions are per-
formed in sequences of four. Sequences can be performed on a single channel or an a group of chan-
nels.
Dedicated lines V
RH
and V
RL
provide the reference supply voltage inputs.
PE0/
AN0
PE1/
AN1
PE2/
AN2
PE3/
AN3
ANALOG
MUX
8-BIT CAPACITIVE DAC
WITH SAMPLE AND HOLD
SUCCESSIVE APPROXIMATION
REGISTER AND CONTROL
ADCTL
A/D CONTROL
C
C
C
M
S
C
C
ADDR 3
A/D RESULT 3
RESULT REGISTER INTERFACE
RESULT
INTERNAL
DATA BUS
VRH
VRL
ADDR 4
A/D RESULT 4
ADDR 2
A/D RESULT 2
ADDR 1
A/D RESULT 1
PE4/
AN4
PE5/
AN5
PE6/
AN6
PE7/
AN7
相關PDF資料
PDF描述
MC68HC711K4CFN2 8-BIT MICROCONTROLLER
MC68HC11K4CFN2 Technical Summary 8-Bit Microcontroller
MC68HC11K4CFN3 Technical Summary 8-Bit Microcontroller
MC68HC11K1VFU2 8-BIT MICROCONTROLLER
MC68HC11K4VFU2 MNX Series Enclosure; NEMA Type:1, 2, 4, 4X, 6, 12, 13; Enclosure Material:Polycarbonate; External Height:5.1"; External Width:3"; External Depth:3.9"
相關代理商/技術參數
參數描述
MC68HC11K1VFNE4 功能描述:8位微控制器 -MCU 8B MCU 768 RAM - EPP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
MC68HC11K1VFU2 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-Bit Microcontroller
MC68HC11K1VFU3 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-Bit Microcontroller
MC68HC11K1VFU4 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller
MC68HC11K3CFN2 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
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