- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1915 > DS2250-64-16+ (Maxim Integrated Products)IC MCU 64KB 16MHZ 40-SIMM PDF資料下載
參數(shù)資料
| 型號(hào)： | DS2250-64-16+ |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 16/18頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU 64KB 16MHZ 40-SIMM |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | DS225x |
| 核心處理器： | 8051 |
| 芯體尺寸： | 8-位 |
| 速度： | 16MHz |
| 連通性： | SIO，UART/USART |
| 外圍設(shè)備： | 電源故障復(fù)位，WDT |
| 輸入/輸出數(shù)： | 32 |
| 程序存儲(chǔ)器類型： | SRAM |
| RAM 容量： | 64K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 4.75 V ~ 5.25 V |
| 振蕩器型： | 外部 |
| 工作溫度： | 0°C ~ 70°C |
| 封裝/外殼： | 40-SIMM |
| 包裝： | 托盤 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)當(dāng)前第16頁(yè)第17頁(yè)第18頁(yè)
DS2250(T)
7 of 18
The Parallel Program cycle is used to load a byte of data into a register or memory location within the
DS2250(T). The Verify cycle is used to read this byte back for comparison with the originally loaded
value to verify proper loading. The Security Set cycle may be used to enable and the software security
feature. One may also enter bytes for the MCON register or for the five encryption registers using the
Program MCON cycle. When using this cycle, the absolute register address must be presented at Ports 1
and 2 as in the normal program cycle (Port 2 should be 00H). The MCON contents can likewise be
verified using the Verify MCON cycle.
When the DS2250(T) first detects a Parallel Program Strobe pulse or a Security Set Strobe pulse while in
the Program Load Mode following a power-on reset, the internal hardware of the device is initialized so
that an existing 4-kbyte program can be programmed into a DS2250(T) with little or no modification.
This initialization automatically sets the range address for 8 kbytes and maps the lowest 4-kbyte bank of
embedded RAM as program memory. The next 4 kbytes of embedded RAM are mapped as data memory.
In order to program more than 4 kbytes of program code, the Program/Verify Expanded cycles can be
used. Up to 32 kbytes of program code can be entered and verified. Note that the expanded 32 kbyte
Program/Verify cycles take much longer than the normal 4 kbyte Program/Verify cycles.
A typical parallel loading session would follow this procedure. First, set the contents of the MCON
register with the correct range and partition only if using expanded programming cycles. Next, the
encryption registers can be loaded to enable encryption of the program/data memory (not required). Then,
program the DS2250(T) using either normal or expanded program cycles and check the memory contents
using Verify cycles. The last operation would be to turn on the security lock feature by either a Security
Set cycle or by explicitly writing to the MCON register and setting MCON.0 to a 1.
SERIAL LOADER BAUD RATES FOR
DIFFERENT CRYSTAL FREQUENCIES Table 2
BAUD RATE
CRYSTAL FREQ
(MHz)
300
1200
2400
9600
19200
57600
14.7456
Y
11.0592
Y
9.21600
Y
7.37280
Y
5.52960
Y
1.84320
Y
ADDITIONAL INFORMATION
A complete description for all operational aspects of the DS2250(T) is provided in the Secure
Microcontroller User’s Guide.
DEVELOPMENT SUPPORT
The DS89C450-K00 evaluation kit can be used to develop and test user code. It allows the user to
download Intel hex formatted code to the DS2250(T) from a PC. The user must purchase the DS2250 and
DS9072-40V mechanical adapter separately. Refer to the Secure Microcontroller User’s Guide for further
details.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2251T-128-16 | IC MICROCNTRLR 128K 16MHZ 72SIMM |
| DS2252T-128-16 | IC MICROCNTRLR 128K 16MHZ 40SIMM |
| DS2291/87-22291-000 | IC STIK T1 LONG LOOP 5V 30-SIP |
| DS229S/T&R | IC TXRX TRI 5V RS-232 IND 20SOIC |
| DS232AR | IC TXRX DUAL RS-232 5V 16-SOIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2250-64-16# | 功能描述:模塊化系統(tǒng) - SOM Soft MCU Module RoHS:否 制造商:Digi International 外觀尺寸:ConnectCore 9P 處理器類型:ARM926EJ-S 頻率:150 MHz 存儲(chǔ)容量:8 MB, 16 MB 存儲(chǔ)類型:NOR Flash, SDRAM 接口類型:I2C, SPI, UART 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in |
| DS2250-64-16+ | 功能描述:IC MCU 64KB 16MHZ 40-SIMM RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:DS225x 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:260 系列:73S12xx 核心處理器:80515 芯體尺寸:8-位 速度:24MHz 連通性:I²C，智能卡，UART/USART，USB 外圍設(shè)備:LED，POR，WDT 輸入/輸出數(shù):9 程序存儲(chǔ)器容量:64KB（64K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-VFQFN 裸露焊盤 包裝:管件 |
| DS2250-64-8 | 功能描述:模塊化系統(tǒng) - SOM RoHS:否 制造商:Digi International 外觀尺寸:ConnectCore 9P 處理器類型:ARM926EJ-S 頻率:150 MHz 存儲(chǔ)容量:8 MB, 16 MB 存儲(chǔ)類型:NOR Flash, SDRAM 接口類型:I2C, SPI, UART 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in |
| DS2250-8-16 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Soft Microcontroller Module |
| DS2250-8-8 | 制造商:Maxim Integrated Products 功能描述:SIPSTIK, MICRO 8KX8 8MHZ - Rail/Tube |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。