- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄9173 > DS1856B-020+T&R (Maxim Integrated Products)IC RES TEMP-CNTRL 20/20K 16-BGA PDF資料下載
參數(shù)資料
| 型號(hào)： | DS1856B-020+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 4/31頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RES TEMP-CNTRL 20/20K 16-BGA |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 接片： | 256 |
| 電阻（歐姆）： | 20k |
| 電路數(shù)： | 2 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 50 ppm/°C |
| 存儲(chǔ)器類型： | 非易失 |
| 接口： | 2 線串口 |
| 電源電壓： | 2.85 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 95°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-LBGA，CSPBGA |
| 供應(yīng)商設(shè)備封裝： | 16-CSBGA（4x4） |
| 包裝： | 帶卷 (TR) |
第1頁第2頁第3頁當(dāng)前第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
Dual, Temperature-Controlled Resistors with Inter-
nally Calibrated Monitors and Password Protection
12
Maxim Integrated
DS1856
memories can be accessed by two separate 2-wire
slave addresses (see Table 4). The Main Device
address is A2h (or determined by the value in Table 03,
byte 8Ch, when ADFIX = 1) and the Auxiliary Device
address is A0h (fixed). A configuration bit, ADEN
(Table 03, byte 89h, bit 5), determines whether the
DS1856 uses one or two 2-wire slave addresses. This
feature can be used to save component count in SFF
applications or other applications where both GBIC
and monitoring functions are implemented and two
device addresses are needed.
The memory organization for ADEN = 0 is shown in
Figure 2. In this configuration, the 128 bytes of
Auxiliary Device EEPROM are located at memory loca-
tions 00h to 7Fh and accessed using the Auxiliary
Device 2-wire slave address of A0h (fixed). The
remainder of the DS1856’s memory is accessed using
the Main Device address.
The memory organization of the second configuration,
ADEN = 1, is shown in Figure 3. In this configuration, all
of the DS1856’s memory including the Auxiliary memo-
ry is accessed using only the Main Device address.
The Auxiliary Device memory is mapped into Table 00
and Table 01 in the Main Device. Both tables map to
the same block of physical memory. This is done to
improve the compatibility between previous members
of this IC family such as the DS1858/DS1859 and the
DS1852. In this configuration, the DS1856 ignores com-
munication using the Auxiliary Device address.
The value of the Main Device address can be changed
to a value other than the default value of A2h (see data
sheet Table 5). There can be up to 128 devices sharing
a common 2-wire bus, with each device having its own
unique address. To change the Main Device address,
first write the desired value to the Chip Address byte
(Table 03, byte 8Ch). Then, enable the new address by
setting ADFIX to a 1. Subsequent 2-wire communica-
tion must be performed using the new Main Device
address. When ADFIX = 0, the Chip Address byte is
ignored, and the Main Device address is set to A2h.
TABLE 00h/01h
EEPROM
AUXILIARY MEMORY
(128 BYTES)
80h
FFh
255
FF
127
7F
128
80
183
B7
199
C7
200
C8
LOWER MEMORY
TABLE SELECT BYTE
PASSWORD ENTRY
(PWE) (4 BYTES)
00h
7Fh
2-WIRE ADDRRESS A2h (DEFAULT)
NOTE 1: ADEN BIT = 1. ALL MEMORY (INCLUDING THE AUXILIARY MEMORY) IS ADDRESSED USING THE
NOTE 1: MAIN DEVICE 2-WIRE SLAVE ADDRESS.
NOTE 2: TABLES 00h AND 01h ACCESS THE SAME PHYSICAL MEMORY.
NOTE 3: TABLE 02h DOES NOT EXIST.
DEC HEX
00
TABLE 03h
CONFIGURATION
TABLE
80h
B7h
TABLE 04h
RESISTOR 0
LOOK-UP TABLE
(72 BYTES)
80h
C7h
TABLE 05h
RESISTOR 1
LOOK-UP TABLE
(72 BYTES)
80h
C7h
RESERVED AND
CALIBRATION
CONSTANTS
RESERVED AND
CALIBRATION
CONSTANTS
F0h
FFh
F0h
FFh
Figure 3. Memory Organization, ADEN = 1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 7WBD3306USG | TRANSLATOR 2BIT FST BUS SW US8 |
| MS3450W28-2PY | CONN RCPT 14POS WALL MNT W/PINS |
| V28A48H200BF3 | CONVERTER MOD DC/DC 48V 200W |
| 7SB385AMX1TCG | 1 BIT DIGITAL SWITCH ULLGA |
| DS1859B-050+T&R | IC RES TEMP 50/50K W/3MON 16-BGA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1856B-025 | 功能描述:數(shù)字電位計(jì) IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS1856B-025/R | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Dual, Temperature-Controlled Resistors with Internally Calibrated Monitors and Password Protection |
| DS1856B-025/T | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Dual, Temperature-Controlled Resistors with Internally Calibrated Monitors and Password Protection |
| DS1856B-025R | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Dual, Temperature-Controlled Resistors with Internally Calibrated Monitors and Password Protection |
| DS1856B-025T | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Dual, Temperature-Controlled Resistors with Internally Calibrated Monitors and Password Protection |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。