參數(shù)資料
型號(hào)： MC68HCP11A1CFN2
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, 2 MHz, MICROCONTROLLER, PQCC52
封裝： PLASTIC, LCC-52
文件頁數(shù)： 22/158頁
文件大?。?/td> 776K
代理商： MC68HCP11A1CFN2
MOTOROLA
2-6
SIGNAL DESCRIPTIONS AND OPERATING MODES
MC68HC11A8
TECHNICAL DATA
2
2.1.11.5 Port E
Port E is used for general-purpose inputs and/or analog-to-digital (A/D) input chan-
nels. Reading port E during the sampling portion of an A/D conversion could cause
very small disturbances and affect the accuracy of that result. If very high accuracy is
required, avoid reading port E during conversions.
2.2 Operating Modes
There are four operating modes for the MC68HC11A8: single-chip operating mode,
expanded multiplexed operating mode, special bootstrap operating mode, and special
test operating mode.
Table 2-1
shows how the operating mode is selected. The following paragraphs de-
scribe these operating modes.
2.2.1 Single-Chip Operating Mode
In single-chip operating mode, the MC68HC11A8 functions as a monolithic microcon-
troller without external address or data buses. Port B, port C, strobe A, and strobe B
function as general purpose l/O and handshake signals. Refer to
4 PARALLEL I/O
for
additional information.
2.2.2 Expanded Multiplexed Operating Mode
In expanded multiplexed operating mode, the MC68HC11A8 has the capability of ac-
cessing a 64 Kbyte address space. This total address space includes the same on-
chip memory addresses used for single-chip operating mode plus external peripheral
and memory devices. The expansion bus is made up of port B and port C, and control
signals AS and R/W.
Figure 2-4
shows a recommended way of demultiplexing low or-
der addresses from data at port C. The address, R/W, and AS signals are active and
valid for all bus cycles including accesses to internal memory locations.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HCP11A1CFN3 功能描述:8位微控制器 -MCU 8-bit HCMOS single chip MCU 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(chǔ)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
MC68HCP11A1FN 制造商:MOTORALA 功能描述:
MC68HCP11E0CP2 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HCP11E0FN 功能描述:MICROCONTROLLER MCU 8ADC 3MHC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC11 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN，SCI，SPI 外圍設(shè)備:POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):21 程序存儲(chǔ)器容量:40KB（20K x 16） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
MC68HCP11E0FNE 功能描述:8位微控制器 -MCU 8B MCU 512RAM COP 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(chǔ)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
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