參數(shù)資料
型號(hào): MC68HC705J1ACP
廠(chǎng)商: MOTOROLA INC
元件分類(lèi): 微控制器/微處理器
英文描述: Microcontrollers
中文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP20
封裝: PLASTIC, DIP-20
文件頁(yè)數(shù): 103/108頁(yè)
文件大?。?/td> 718K
代理商: MC68HC705J1ACP
RC Oscillator Connections (No External Resistor)
MC68HC705KJ1 MC68HRC705KJ1 MC68HLC705KJ1 Data Sheet, Rev. 4.1
Freescale Semiconductor
103
A.4 RC Oscillator Connections (No External Resistor)
For maximum cost reduction, the RC oscillator mask connections shown in
Figure A-3
allow the on-chip
oscillator to be driven with
no
external components. This can be accomplished by programming the
oscillator internal resistor (OSCRES) bit in the mask option register to a logic 1. When programming the
OSCRES bit for the MC68HRC705KJ1, an internal resistor is selected which yields typical internal
oscillator frequencies as shown in
Figure A-4
. The internal resistance for this device is different than the
resistance of the selectable internal resistor on the MC68HC705KJ1 and the MC68HRC705KJ1 devices.
Figure A-3. RC Oscillator Connections (No External Resistor)
MCU
V
DD
V
SS
C1
C2
OSC1
OSC2
O
O
R
(EXTERNAL CONNECTIONS LEFT OPEN)
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MC68HC705J1ACPE 功能描述:8位微控制器 -MCU HCO5 CORE+1.2K RAM + EPR RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線(xiàn)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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