- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄45223 > MC68HC05RC8FN (FREESCALE SEMICONDUCTOR INC) 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC44 PDF資料下載
參數(shù)資料
| 型號(hào)： | MC68HC05RC8FN |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁(yè)數(shù)： | 92/122頁(yè) |
| 文件大?。?/td> | 2962K |
| 代理商： | MC68HC05RC8FN |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)當(dāng)前第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)
Carrier Modulator Transmitter (CMT)
Carrier Generator
MC68HC05RC16 — Rev. 3.0
General Release Specification
Carrier Modulator Transmitter (CMT)
9.4.1 Time Counter
The high/low time counter is a 6-bit up counter. After each increment, the
contents of the counter are compared with the appropriate high or low
count value register. When this value is reached, the counter is reset and
the compare is redirected to the other count value register. Assuming
that the high time count compare register is currently active, a valid
compare will cause the carrier output to be driven low. The counter will
continue to increment and when reaching the value stored in the
selected low count value register, it will be cleared and will cause the
carrier output to be driven high. The cycle repeats, automatically
generating a periodic signal which is directed to the modulator. The
lowest frequency (maximum period) and highest frequency (minimum
period) which can be generated are defined below.
fmin = fosc ÷ (2 x (2
6 – 1)) Hz
fmax = fosc ÷ (2 x 1) Hz
In the general case, the carrier generator output frequency is:
fout = fosc ÷ (Highcount + Lowcount) Hz
Where:
0 <
Highcount < 64 and
0 <
Lowcount < 64
NOTE:
These equations assume the DIV2 bit (bit 6) of the MCSR is clear. When
the DIV2 bit is set, the carrier generator frequency will be half of what is
shown in these equations.
The duty cycle of the carrier signal is controlled by varying the ratio of
high time to low + high time. As the input clock period is fixed, the duty
cycle resolution will be proportional to the number of counts required to
generate the desired carrier period.
Duty Cycle
Highcount
Lowcount
+
----------------------------------------------------------------
=
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68HC05RC8P | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP28 |
| MC68HC05RC17DW | 8-BIT, MROM, 2.097 MHz, MICROCONTROLLER, PDSO28 |
| MC68HC05RC17DW | 8-BIT, MROM, 2.097 MHz, MICROCONTROLLER, PDSO28 |
| MC68HC05RC18FN | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC44 |
| MC68HC05RC18DW | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC05RC8P | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:General Release Specification |
| MC68HC05SC24 | 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:Secure 8-bit microcomputer with EEPROM |
| MC68HC05SR3 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcontroller Units |
| MC68HC05SU3A | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Fully static chip design featuring the industry standard 8-bit M68HC05 core |
| MC68HC05T16 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。