- 您現在的位置：買賣IC網 > PDF目錄369230 > 68HRC705J5A (Motorola, Inc.) 8-Bit Microcontroller Units (MCU).(8位微控制器) PDF資料下載
參數資料
| 型號： | 68HRC705J5A |
| 廠商： | Motorola, Inc. |
| 英文描述： | 8-Bit Microcontroller Units (MCU).(8位微控制器) |
| 中文描述： | 8位微控制器單元（MCU）。（8位微控制器） |
| 文件頁數： | 101/106頁 |
| 文件大?。?/td> | 1069K |
| 代理商： | 68HRC705J5A |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁當前第101頁第102頁第103頁第104頁第105頁第106頁
July 16, 1999
GENERAL RELEASE SPECIFICATION
MC68HC05J5A
REV 2.1
MOTOROLA
C-1
APPENDIX C
MC68HRC705J5A
This appendix describes the MC68HRC705J5A, the emulation part for
MC68HRC05J5A, and a resistor-capacitor (RC) oscillator mask option version of
the MC68HC705J5A. The entire MC68HC05J5A data sheet and appendix B
applies to the MC68HRC705J5A, with exceptions outlined in this appendix.
C.1
INTRODUCTION
The MC68HRC705J5A is a resistor-capacitor (RC) oscillator mask option version
of the MC68HC705J5A (see
Appendix B
). The MC68HRC705J5A is functionally
identical to the MC68HC705J5A with the exception that the MC68HRC705J5A
supports the RC oscillator only, as outlined in
Appendix C.2
.
The MC68HRC705J5A is not available in the 16-pin SOIC package.
C.2
RC OSCILLATOR CONNECTIONS
This is the only oscillator option supported by the MC68HRC705J5A device.
On the MC68HRC705J5A device, an external resistor is connected between
OSC2/R pin and the V
SS
pin as shown in
Figure C-1
. The typical operating fre-
quency f
OSC
is set at 4MHz with the external R tied to V
SS
. Use the graph in
Figure C-2
to select the value of R for the required oscillator frequency.
The tolerance of this RC oscillator is guaranteed to be no greater than
±
15% at
the specified conditions of 0
°
C to 40
°
C and 5V
±
10% V
DD
providing that the toler-
ance of the external resistor R is at most
±
1% and the center frequency range is
from 3.8MHz to 4.2MHz. The center frequency is the nominal operating frequency
of the RC oscillator and can be adjusted by adjusting the external R value to
change the internal VCO charging current.
In order to obtain an oscillator clock with the best possible tolerance, the external
resistor connected to the OSC2/R pin should be grounded as close to the VSS pin
as possible and the other terminal of this external resistor should be connected as
close to the OSC2/R pin as possible.
Figure C-1. RC Oscillator Connections
MCU
OSC2/R
OSC1
R
相關PDF資料 |
PDF描述 |
|---|---|
| 68HC05K0 | 8-Bit Microcontroller Units (MCU).(8位微控制器) |
| 68HC05PL4 | 8-Bit Microcontroller Units (MCU).(8位微控制器) |
| 68HC05PL4B | 8-Bit Microcontroller Units (MCU).(8位微控制器) |
| 68HC705PL4 | 8-Bit Microcontroller Units (MCU).(8位微控制器) |
| 68HC705PL4B | 8-Bit Microcontroller Units (MCU).(8位微控制器) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 68HRC705JJ7 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification |
| 68HRC705JP7 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification |
| 68HRC705SJ7 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification |
| 68HRC705SP7 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification |
| 68J0313 | 制造商:n/a 功能描述:HEADSET,MONO,CR VCE TUBE |
發布緊急采購，3分鐘左右您將得到回復。