- 您現在的位置：買賣IC網 > PDF目錄360516 > 7544 3.3V LDO POSITVE VOLTAGE REGULATOR 2% TOL. PDF資料下載
參數資料
| 型號： | 7544 |
| 英文描述： | 3.3V LDO POSITVE VOLTAGE REGULATOR 2% TOL. |
| 中文描述： | 7544Group數據表數據表503K/JUN.25.03 |
| 文件頁數： | 31/54頁 |
| 文件大?。?/td> | 503K |
| 代理商： | 7544 |
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頁當前第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
Rev.1.02 2003.06.25 page 31 of 53
7544 Group
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
Reset Circuit
The microcomputer is put into a reset status by holding the RE-
SET pin at the
“
L
”
level for 2
μ
s or more when the power source
voltage is 4.5 to 5.5 V and X
IN
is in stable oscillation.
After that, this reset status is released by returning the RESET pin
to the
“
H
”
level. The program starts from the address having the
contents of address FFFD
16
as high-order address and the con-
tents of address FFFC
16
as low-order address.
In the case of f(
φ
)
≤
8 MHz, the reset input voltage must be 0.9 V
or less when the power source voltage passes 4.5 V.
______
Fig. 35 Example of reset circuit
Fig. 36 Timing diagram at reset
(Note)
0.2 V
CC
0 V
0 V
Poweron
V
CC
RESET
V
CC
RESET
Power source
voltage
detection circuit
Power source
voltage
Reset input
voltage
Note :
Reset release voltage Vcc 4.5V
Data
Address
8-13 clock cycles
Reset address from the
vector table
1 :
A built-in ring oscillator applies about RING
2 MHz,
φ
250 kHz frequency clock
at average of Vcc = 5 V.
2 :
The mark
“
”
means that the address is changeable depending on the previous state.
3 :
These are all internal signals except RESET.
Notes
FFFC
FFFD
AD
H
,AD
L
AD
L
AD
H
Clock from built-in
ring oscillator RING
φ
RESET
RESET
OUT
SYNC
相關PDF資料 |
PDF描述 |
|---|---|
| 75450PC | Peripheral IC |
| D122D | Converter IC |
| D347D | Logic IC |
| D348D | Logic IC |
| 7545ARPDS-2 | HIGH VOLTAGE, LOW QUIESCENT CURRENT LDO, -40C to +125C, 3-SOT-89, T/R |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 754-4.47M | 制造商:OSCILENT 制造商全稱:Oscilent Corporation 功能描述:Ceramic Trap Double/Triple Peak |
| 754-4.6M | 制造商:OSCILENT 制造商全稱:Oscilent Corporation 功能描述:Ceramic Trap Double/Triple Peak |
| 754-4007-0 | 制造商:ROCK 功能描述: |
| 75-440-6 | 制造商:ATM 制造商全稱:ATM 功能描述:STANDARD GAIN HORN |
| 75-440-X | 制造商:ATM 制造商全稱:ATM 功能描述:HORN MOUNT APPLICATIONS |
發(fā)布緊急采購，3分鐘左右您將得到回復。