- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄379505 > UPD78001BCWA (NEC Corp.) 1 watt dc-dc converters PDF資料下載
參數(shù)資料
| 型號： | UPD78001BCWA |
| 廠商： | NEC Corp. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 1 watt dc-dc converters |
| 中文描述： | 1瓦的DC - DC轉換器 |
| 文件頁數(shù)： | 32/62頁 |
| 文件大?。?/td> | 576K |
| 代理商： | UPD78001BCWA |
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頁當前第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
32
μ
PD78001B(A), 78002B(A)
Subsystem Clock Oscillation Circuit Characteristics
(T
A
= –40 to +85
°
C, V
DD
= 2.7 to 6.0 V)
Unit
kHz
s
kHz
μ
s
MAX.
35
2
10
100
15
Test Conditions
V
DD
= 4.5 to 6.0 V
Parameter
Oscillator
frequency (f
XT
)
*1
Oscillation
stabilization time
*2
XT1 input
frequency (f
XT
)
*1
XT1 input
high/low level width
(t
XTH
, t
XTL
)
Resonator
Crystal
resonator
External
clock
Recommended
Circuit
XT1
XT2
XT1
XT2
C4
C3
R2
V
SS
MIN.
32
32
5
TYP.
32.768
1.2
*
1.
2.
Indicates only oscillation circuit characteristics. Refer to “AC Characteristics” for instruction execution time.
Time required to stabilize oscillation after V
DD
reaches oscillator voltage MIN.
C
autions
1.
When using the subsystem clock oscillator, wiring in the area enclosed with the broken line should be carried
out as follows to avoid an adverse effect from wiring capacitance.
Wiring should be as short as possible.
Wiring should not cross other signal lines.
Wiring should not be placed close to a varying high current.
The potential of the oscillator capacitor ground should be the same as VSS.
Do not ground wiring to a ground pattern in which a high current flows.
Do not fetch a signal from the oscillator.
2.
The subsystem clock oscillation circuit is a circuit with a low amplification level, more prone to misoperation
due to noise than the main system clock. When using the subsystem clock, special care is needed regarding
the wiring method.
相關PDF資料 |
PDF描述 |
|---|---|
| UPD78001BGC | 1 watt dc-dc converters |
| UPD78001BGCA | 1 watt dc-dc converters |
| UPD78002 | 1 watt dc-dc converters |
| UPD78014 | 1 watt dc-dc converters |
| UPD78018F | 1 watt dc-dc converters |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| UPD780023AGB-G43-8EU-X3-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD780023AGB-G44-8EU-E3-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD780023AGC-107-8BS-A | 制造商:Renesas Electronics Corporation 功能描述:NECUPD780023AGC-107-8BS-A MASK ROM DEVIC |
| UPD780023AGK-C74-9ET-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD780024AGK-C42-9ET | 制造商:Renesas Electronics Corporation 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復。