參數(shù)資料
型號: MC705JP7CPE
廠商: Freescale Semiconductor
文件頁數(shù): 136/164頁
文件大?。?/td> 0K
描述: IC MCU 8BIT 224 BYTES RAM 28PDIP
標(biāo)準(zhǔn)包裝: 13
系列: HC05
核心處理器: HC05
芯體尺寸: 8-位
速度: 2.1MHz
連通性: SIO
外圍設(shè)備: POR,溫度傳感器,WDT
輸入/輸出數(shù): 22
程序存儲器容量: 6KB(6K x 8)
程序存儲器類型: OTP
RAM 容量: 224 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 4x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 28-DIP(0.600",15.24mm)
包裝: 管件
Analog Multiplex Register
MC68HC705JJ7 MC68HC705JP7 Advance Information Data Sheet, Rev. 4.1
Freescale Semiconductor
73
8.2 Analog Multiplex Register
The analog multiplex register (AMUX) controls the general interconnection and operation. The control bits
in the AMUX are shown in Figure 8-2.
HOLD, DHOLD
These read/write bits control the source connection to the negative input of voltage comparator 2
shown in Figure 8-3. This allows the voltage on the internal temperature sensing diode, the channel
selection bus, or the divide-by-two channel selection bus to charge the internal sample capacitor and
to also be presented to comparator 2. The decoding of these sources is given in Table 8-1.
During the hold case when both the HOLD and DHOLD bits are clear, the VOFF bit in the analog status
register (ASR) can offset the VSS reference on the sample capacitor by approximately 100 mV. This
offset source is bypassed whenever the sample capacitor is being charged with either the HOLD or
DHOLD bit set. The VOFF bit must be enabled by the OPT bit in the COPR at location $1FF0.
Figure 8-3. Comparator 2 Input Circuit
Address:
$0003
Bit 7
654321
Bit 0
Read:
HOLD
DHOLD
INV
VREF
MUX4
MUX3
MUX2
MUX1
Write:
Reset:
10000000
Figure 8-2. Analog Multiplex Register (AMUX)
+
COMP2
SAMPLE
HOLD
DHOLD
CAP
TEMPERATURE
DIODE
INTERNAL
VOFF
VSS
OFFSET
+
OPT (MOR)
CHANNEL
PB0
SELECTION
BUS
VDD
80 k
80 k
相關(guān)PDF資料
PDF描述
S912XEG128J2MAA MCU 16BIT 128K FLASH 16K 80QFP
MC9S12XD64MAA IC MCU 16BIT 64K FLASH 80-QFP
MC56F8322VFAER2 IC HYBRID CTRLR 16BIT 48-LQFP
MCF5207CVM166J IC MCU 32BIT RISC 144-MAPBGA
MC68908GZ16MFJE IC MCU 8BIT 16K FLASH 32-LQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC705JP7CPE 制造商:Freescale Semiconductor 功能描述:IC 8BIT MCU 68HC05 2.1MHZ DIP-28
MC705K1CP 制造商:Motorola Inc 功能描述:16 PIN DIP INTEGRATED CIRCUIT
MC705L16CFUE 功能描述:8位微控制器 -MCU 8B MCU W/ EPROM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) 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(fēng)格:SMD/SMT
MC705P6ACDWE 功能描述:8位微控制器 -MCU MCU 176 BYTES RAM A/D RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) 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(fēng)格:SMD/SMT
MC705P6ACDWE 制造商:Freescale Semiconductor 功能描述:8-Bit Microcontroller IC