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參數(shù)資料
| 型號： | X9523B20I-B |
| 廠商： | INTERSIL CORP |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | RECTIFIER FAST-RECOVERY SINGLE 3A 100V 125A-ifsm 0.95V-vf 35ns 5uA-ir DO-201AD 500/BULK |
| 中文描述： | DIGITAL POTENTIOMETER, BGA20 |
| 封裝： | BGA-20 |
| 文件頁數(shù)： | 13/30頁 |
| 文件大?。?/td> | 509K |
| 代理商： | X9523B20I-B |
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13
FN8209.0
March 10, 2005
WP: Write Protection Pin
When the Write Protection (WP) pin is active (HIGH), it
disables nonvolatile write operations to the X9523.
The table below (X9523 Write Permission Status) sum-
marizes the effect of the WP pin (and DCP Write Lock),
on the write permission status of the device.
Additional Data Protection Features
In addition to the preceding features, the X9523 also
incorporates the following data protection functionality:
—The proper clock count and data bit sequence is
required prior to the STOP bit in order to start a nonvol-
atile write cycle.
VOLTAGE MONITORING FUNCTIONS
V1 / Vcc Monitoring
The X9523 monitors the supply voltage and drives the
V1RO output HIGH (using an external “pull up” resistor)
if V1/Vcc is lower than V
TRIP1
threshold. The V1RO
output will remain HIGH until V1/Vcc exceeds V
TRIP1
for a minimum time of t
PURST
. After this time, the
V1RO pin is driven to a LOW state. See Figure 25.
For the Power-on/Low Voltage Reset function of the
X9523, the V1RO output may be driven HIGH down to a
V1/Vcc of 1V (V
RVALID
). See Figure 25. Another feature
of the X9523, is that the value of t
PURST
may be selected
in software via the CONSTAT register (See “POR1,
POR0: Power-on Reset bits - (Nonvolatile)” on page 11.).
It is recommended to stop communication to the device
while while V1RO is HIGH. Also, setting the Manual
Reset (MR) pin HIGH overrides the Power-on/Low
Voltage circuitry and forces the V1RO output pin HIGH
(See "Manual Reset").
Manual Reset
The V1RO output can be forced HIGH externally using
the Manual Reset (MR) input. MR is a de-bounced, TTL
compatible input, and so it may be operated by connect-
ing a push-button directly from V1/Vcc to the MR pin.
V1RO remains HIGH for time t
PURST
after MR has
returned to its LOW state (See Figure 15). An external
“pull down” resistor is required to hold this pin (nor-
mally) LOW.
V2 monitoring
The X9523 asserts the V2RO output HIGH if the volt-
age V2 exceeds the corresponding V
TRIP2
threshold
(See Figure 16). The bit V2OS in the CONSTAT regis-
ter is then set to a “0” (assuming that it has been set to
“1” after system initilization).
The V2RO output may remain active HIGH with V
CC
down to 1V.
V3 monitoring
The X9523 asserts the V3RO output HIGH if the volt-
age V3 exceeds the corresponding V
TRIP3
threshold
(See Figure 16). The bit V3OS in the CONSTAT regis-
ter is then set to a “0” (assuming that it has been set to
“1” after system initilization).
The V3RO output may remain active HIGH with V
CC
down to 1V.
MR
V1RO
V1 / Vcc
0 Volts
0 Volts
t
PURST
Figure 15. Manual Reset Response
0 Volts
V
TRIP1
Figure 16. Voltage Monitor Response
Vx
VxRO
0V
0V
V
TRIPx
(x = 2,3)
0 Volts
V
TRIP1
V1 / Vcc
X9523
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| X9523V20I-B | 功能描述:IC DUAL DCP LASER CNTRL 20TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 激光驅動器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:60 系列:- 類型:激光二極管驅動器 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 供應商設備封裝:40-TQFN EP 包裝:托盤 安裝類型:表面貼裝 |
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| X9523V20IZ-A | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Laser Diode Control for Fiber Optic Modules |
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