- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382784 > μPD72045F (NEC Corp.) 8 Bit Single Chip Microcontrollers PDF資料下載
參數(shù)資料
| 型號： | μPD72045F |
| 廠商： | NEC Corp. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8 Bit Single Chip Microcontrollers |
| 中文描述： | 8位單片機微控制器 |
| 文件頁數(shù)： | 38/72頁 |
| 文件大?。?/td> | 547K |
| 代理商： | ΜPD72045F |
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頁當前第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
38
m
PD78042F, 78043F, 78044F, 78045F
MAIN SYSTEM CLOCK OSCILLATOR CHARACTERISTICS
(T
A
= –40 to +85 °C, V
DD
= 2.7 to 5.5 V)
Notes 1.
It indicates only the oscillator characteristics. For the instruction execution time, see the AC Charac-
teristics.
2.
Time required until oscillation becomes stable after V
DD
is applied or the STOP mode is disabled.
Cautions 1. If the main system clock oscillator is to be used, wire the area inside the broken line square
as follows to avoid influence of wiring capacitance:
Make wiring as short as possible.
Do not cross other signal lines.
Do not get close to lines with fluctuating large current.
Make sure that the connecting points of the capacitor of the oscillator always have the same
electric potential as V
SS
.
Do not connect the oscillator to a ground pattern that conducts a large current.
Do not take out signal from the oscillator.
2. When switching to the main system clock again after the subsystem clock has been used with
the main system clock stopped, be sure to set the program to provide enough time for the
oscillation to stabilize.
Resonator
Recommended circuit
Parameter
Conditions
MIN.
TYP.
MAX.
Unit
Ceramic
resonator
Oscillation frequency
(f
X
)
Note 1
1
5
MHz
Oscillation settling
time
Note 2
4
ms
Crystal
Oscillation frequency
(f
X
)
Note 1
1
4.19
5
MHz
Oscillation settling
time
Note 2
V
DD
= 4.5 to 5.5 V
10
ms
30
External
clock
X1 input frequency
(f
X
)
Note 1
1
5
MHz
X1 input high, low-level
width (t
XH
, t
XL
)
100
500
ns
X1
X2
PD74HCU04
m
V
SS
X1
X2
C2
C1
V
SS
X1
X2
C2
C1
相關PDF資料 |
PDF描述 |
|---|---|
| μPD750004 | 4 Bit Single Chip Microcontrollers(4位單片微控制器) |
| μPD750004(A) | 4 Bit Single Chip Microcontrollers(4位單片微控制器) |
| μPD750006 | 4 Bit Single Chip Microcontrollers(4位單片微控制器) |
| μPD750006(A) | 4 Bit Single Chip Microcontrollers(4位單片微控制器) |
| μPD750008 | 4 Bit Single Chip Microcontrollers(4位單片微控制器) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PD7-20-70A | 制造商:MERRIMAC 制造商全稱:MERRIMAC 功能描述:0 , 75 ohm POWER DIVIDERS / COMBINERS |
| PD721MCS10A/1-001 | 制造商:HOTWATT 功能描述:AMMETER 0/10A DC |
| PD721MCS1A/2-003 | 制造商:HOTWATT 功能描述:AMMETER 0/1A DC |
| PD721MCS30V/2-001 | 制造商:HOTWATT 功能描述:VOLTMETER 0/30V DC |
| PD721MCS50A/1-001 | 制造商:HOTWATT 功能描述:AMMETER 0/50A DC |
發(fā)布緊急采購，3分鐘左右您將得到回復。