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參數(shù)資料
| 型號： | X9520 |
| 英文描述： | Triple DCP, POR, 2 kbit EEPROM Memory, Dual Voltage Monitors(3個DCP,上電復(fù)位,2k位串行EEPROM,分別的雙電壓監(jiān)控器端電壓-1.0~+15V) |
| 中文描述： | 三氯酚，葡萄牙，2千比特EEPROM存儲器，雙電壓監(jiān)視器（3個副處長，上電復(fù)位和2K位串行EEPROM中，分別的雙電壓監(jiān)控器端電壓-1.0?15V的） |
| 文件頁數(shù)： | 7/34頁 |
| 文件大?。?/td> | 210K |
| 代理商： | X9520 |
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REV 1.3 4/13/04
Characteristics subject to change without notice.
7 of 34
www.xicor.com
X9520
– Preliminary Information
before break” sequence is used internally for the FET
switches when the wiper is moved from one tap position
to another.
Hot Pluggability
Figure 7 shows a typical waveform that the X9520 might
experience in a Hot Pluggable situation. On power up, V1
/ Vcc applied to the X9520 may exhibit some amount of
ringing, before it settles to the required value.
The device is designed such that the wiper terminal (R
Wx
)
is recalled to the correct position (as per the last stored in
the DCP NVM), when the voltage applied to V1 / Vcc
exceeds V
TRIP1
for a time exceeding t
purst
(the Power On
Reset time, set in the CONSTAT Register - See “CON-
TROL AND STATUS REGISTER” on page 13.).
Therefore, if
t
trans
is defined as the time taken for V1 / Vcc
to settle above V
TRIP1
(Figure 7): then the desired wiper
terminal position is recalled by (a maximum) time:
t
trans
+
t
purst
. It should be noted that
t
trans
is determined by sys-
tem hot plug conditions.
DCP Operations
In total there are three operations that can be performed
on any internal DCP structure:
—DCP Nonvolatile Write
—DCP Volatile Write
—DCP Read
A nonvolatile write to a DCP will change the “wiper
position” by simultaneously writing new data to the
associated WCR and NVM. Therefore, the new “wiper
position” setting is recalled into the WCR after V1 / Vcc of
the X9520 is powered down and then powered back up.
A volatile write operation to a DCP however, changes the
“wiper position” by writing new data to the associated
WCR only. The contents of the associated NVM register
remains unchanged. Therefore, when V1 / Vcc to the
device is powered down then back up, the “wiper position”
reverts to that last position written to the DCP using a
nonvolatile write operation.
Both volatile and nonvolatile write operations are
executed using a three byte command sequence: (DCP)
Slave Address Byte, Instruction Byte, followed by a Data
Byte (See Figure 9)
A DCP Read operation allows the user to “read out” the
current “wiper position” of the DCP as stored in the
associated WCR. This operation is executed using the
Random Address Read command sequence, consisting
of the (DCP) Slave Address Byte followed by an
Instruction Byte and the Slave Address Byte again (Refer
to Figure 10.).
Instruction Byte
While the Slave Address Byte is used to select the DCP
devices, an Instruction Byte is used to determine which
DCP is being addressed.
The Instruction Byte (Figure 8) is valid only when the
Device Type Identifier and the Internal Device Address
bits of the Slave Address are set to 1010111. In this
case, the two Least Significant Bit’s (I1 - I0) of the
Instruction Byte are used to select the particular DCP (0
- 2). In the case of a Write to any of the DCPs (i.e. the LSB
of the Slave Address is 0), the Most Significant Bit of the
Instruction Byte (I7), determines the Write Type (WT) per-
formed.
If WT is “1”, then a Nonvolatile Write to the DCP
occurs. In
this case, the “wiper position” of the DCP is changed by
simultaneously writing new data to the associated WCR
Figure 7.
DCP Power
t
V1 / Vcc
V
TRIP1
V1 / Vcc (Max.)
t
purst
Maximum Wiper Recall time
0
t
trans
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| X9520_06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Triple DCP, POR, 2kbit EEPROM Memory, Dual Voltage Monitors |
| X9520_07 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Triple DCP, POR, 2kbit EEPROM Memory, Dual Voltage Monitors |
| X9520B20IA | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Triple DCP, POR,2kbit EEPROM Memory, Dual Voltage Monitors |
| X9520B20I-A | 功能描述:IC LASR CTRLR 3CHAN 5.5V 20TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 激光驅(qū)動器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:60 系列:- 類型:激光二極管驅(qū)動器 數(shù)據(jù)速率:- 通道數(shù):4 電源電壓:3.3V 電流 - 電源:- 電流 - 調(diào)制:- 電流 - 偏置:- 工作溫度:0°C ~ 70°C 封裝/外殼:40-TQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN EP 包裝:托盤 安裝類型:表面貼裝 |
| X9520B20I-AT1 | 功能描述:IC LASR CTRLR 3CHAN 5.5V 20TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 激光驅(qū)動器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:60 系列:- 類型:激光二極管驅(qū)動器 數(shù)據(jù)速率:- 通道數(shù):4 電源電壓:3.3V 電流 - 電源:- 電流 - 調(diào)制:- 電流 - 偏置:- 工作溫度:0°C ~ 70°C 封裝/外殼:40-TQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN EP 包裝:托盤 安裝類型:表面貼裝 |
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