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參數(shù)資料
| 型號： | DS5001FP-16N |
| 元件分類： | 微處理器 |
| 英文描述： | 128k Soft Microprocessor Chip |
| 中文描述： | 128K的軟微處理器芯片 |
| 文件頁數(shù)： | 10/26頁 |
| 文件大?。?/td> | 557K |
| 代理商： | DS5001FP-16N |
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DS5001FP
10 of 26
Figure 6. DS5001FP CONNECTION TO 64k x 8 SRAM
POWER MANAGEMENT
The DS5001FP monitors V
CC
to provide power-fail reset, early warning power-fail interrupt, and switch
over to lithium backup. It uses an internal bandgap reference in determining the switch points. These are
called V
PFW
, V
CCMIN
, and V
LI
, respectively. When V
CC
drops below V
PFW
, the DS5001FP performs an
interrupt vector to location 2Bh if the power-fail warning was enabled. Full processor operation continues
regardless. When power falls further to V
CCMIN
, the DS5001FP invokes a reset state. No further code
execution is performed unless power rises back above V
CCMIN
. All decoded chip enables and the R/
W
signal go to an inactive (logic 1) state. V
CC
is still the power source at this time. When V
CC
drops further
to below V
LI
, internal circuitry switches to the lithium cell for power. The majority of internal circuits are
disabled and the remaining nonvolatile states are retained. Any devices connected V
CCO
are powered by
the lithium cell at this time. V
CCO
is at the lithium battery voltage minus approximately 0.45V. This drop
varies depending on the load. Low power SRAMs should be used for this reason. When using the
DS5001FP, the user must select the appropriate battery to match the RAM data retention current and the
desired backup lifetime. Note that the lithium cell is only loaded when V
CC
< V
LI
. The
User’s Guide
has
more information on this topic. The trip points V
CCMIN
and V
PFW
are listed in
El
e
ctrical Specifications
.
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| DS5002FMN-16 | Secure Microprocessor Chip |
| DS5002FP | Secure Microprocessor Chip |
| DS5002FPM-16 | Secure Microprocessor Chip |
| DS52-0009 | Industrial Control IC |
| DS52-0009RTR | Industrial Control IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS5001FP-16N+ | 功能描述:微處理器 - MPU Soft MCU Chip RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| DS5001FPN08 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| DS5001FPN12 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| DS5001FPN16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| DS5002FMN+16 | 制造商:Maxim Integrated Products 功能描述:SECUR MICR DBL METAL 16MHZ IND PB-F - Rail/Tube |
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