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參數(shù)資料
| 型號： | 7544 |
| 英文描述： | 3.3V LDO POSITVE VOLTAGE REGULATOR 2% TOL. |
| 中文描述： | 7544Group數(shù)據(jù)表數(shù)據(jù)表503K/JUN.25.03 |
| 文件頁數(shù)： | 11/54頁 |
| 文件大小： | 503K |
| 代理商： | 7544 |
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Rev.1.02 2003.06.25 page 11 of 53
7544 Group
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
Memory
Special function register (SFR) area
The SFR area in the zero page contains control registers such as
I/O ports and timers.
RAM
RAM is used for data storage and for a stack area of subroutine
calls and interrupts.
ROM
The first 128 bytes and the last 2 bytes of ROM are reserved for
device testing and the rest is a user area for storing programs.
Interrupt vector area
The interrupt vector area contains reset and interrupt vectors.
Zero page
The 256 bytes from addresses 0000
16
to 00FF
16
are called the
zero page area. The internal RAM and the special function regis-
ters (SFR) are allocated to this area.
The zero page addressing mode can be used to specify memory
and register addresses in the zero page area. Access to this area
with only 2 bytes is possible in the zero page addressing mode.
Special page
The 256 bytes from addresses FF00
16
to FFFF
16
are called the
special page area. The special page addressing mode can be
used to specify memory addresses in the special page area. Ac-
cess to this area with only 2 bytes is possible in the special page
addressing mode.
I
Note on use
The content of RAM is undefined when the microcomputer is re-
set. The initial values must be surely set before you use it.
Fig. 11 Memory map diagram
0100
16
0000
16
0040
16
0440
16
FF00
16
FFDC
16
FFFE
16
FFFF
16
256
XXXX
16
013F
16
8192
E000
16
E080
16
YYYY
16
ZZZZ
16
RAM
ROM
Reserved area
SFR area
Disable
Interrupt vector area
ROM area
ROM capacity
(bytes)
Reserved ROM area
(128 bytes)
Zero page
Special page
RAM area
RAM capacity
(bytes)
address
XXXX
16
address
YYYY
16
Reserved ROM area
address
ZZZZ
16
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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(shù) |
參數(shù)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 |
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