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參數(shù)資料
| 型號(hào)： | X9440WV24I |
| 廠商： | Intersil |
| 文件頁(yè)數(shù)： | 15/21頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC DUAL PROG COMP 10K 24TSSOP |
| 標(biāo)準(zhǔn)包裝： | 75 |
| 系列： | XDCP™ |
| 接片： | 64 |
| 電阻（歐姆）： | 10k |
| 電路數(shù)： | 2 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 ±300 ppm/°C |
| 存儲(chǔ)器類(lèi)型： | 非易失 |
| 接口： | 6 線 SPI（芯片選擇，設(shè)備位址） |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 24-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 24-TSSOP |
| 包裝： | 管件 |
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3
FN8200.0
March 28, 2005
PIN CONFIGURATION
PIN NAMES
PRINCIPLES OF OPERATION
The X9440 is a highly integrated microcircuit incorpo-
rating two resistor arrays, two voltage comparators
and their associated registers and counters; and the
serial interface logic providing direct communication
between the host and the digitally-controlled potenti-
ometers and voltage comparators.
Serial Interface
The X9440 supports the SPI interface hardware con-
ventions. The device is accessed via the SI input with
data clocked in on the rising SCK. CS must be LOW
and the HOLD and WP pins must be HIGH during the
entire operation.
The SO and SI pins can be connected together, since
they have three state outputs. This can help to reduce
system pin count.
Array Description
The X9440 is comprised of two resistor arrays and two
voltage comparators. Each array contains 63 discrete
resistive segments that are connected in series. The
physical ends of each array are equivalent to the fixed
terminals of a mechanical potentiometer (VH and VL
inputs).
At both ends of each array and between each resistor
segment is a CMOS switch connected to the wiper
(VW) output. Within each individual array only one
switch may be turned on at a time. These switches are
controlled by a volatile wiper counter register (WCR).
The six bits of the WCR are decoded to select, and
enable, one of sixty-four switches.
The WCR may be written directly, or it can be changed
by transferring the contents of one of four associated
data registers into the WCR. These data registers and
the WCR can be read and written by the host system.
Voltage Comparator
The comparator compares the wiper voltage VW with
the external input voltage VNI. The comparator and its
logic level output are controlled by the shutdown,
latch, and enable bits of the analog control register
(ACR). Enable connects the comparator output to the
VOUT pin, Latch memorizes the output logic state, and
shutdown removes the analog section supply voltages
to save power. The analog control register (ACR) is
programmed using the SPI serial interface.
The ACR may be written directly, or it can be changed
by transferring the contents of one of four associated
data registers into the ACR. These data registers and
the ACR may be read and written by the host system.
Symbol
Description
SCK
Serial Clock
S1, SO
Serial Data
A0-A1
Device Address
VH0-VH1,
VL0-VL1
Potentiometers (terminal equivalent)
VW0–VW1
Potentiometers (wiper equivalent)
VNI0, VNI1
Comparator Input Voltages
VOUT0, VOUT1
Buffered Comparator Outputs
WP
Hardware Write Protection
V+,V-
Analog and Voltage Comparator
Supplies
VCC
System Supply Voltage
VSS
System Ground
NC
No Connection
VCC
VL0
VH0
WP
SI
A1
1
2
3
4
5
6
7
8
9
10
24
23
22
21
20
19
18
17
16
15
V+
VOUT0
VNI0
NC
A0
SO
HOLD
SCK
NC
VNI1
SOIC
X9440
VSS
VW0
14
13
11
12
CS
VL1
VH1
VW1
VOUT1
V-
1
2
3
4
5
6
7
8
9
10
24
23
22
21
20
19
18
17
16
15
TSSOP
X9440
14
13
11
12
SI
A1
VL1
VH1
VW1
VSS
NC
V-
V+
VOUT1
VOUT0
SCK
HOLD
VNI1
VNI0
S0
A0
VCC
NC
VL0
VH0
VW0
WP
CS
X9440
相關(guān)PDF資料 |
PDF描述 |
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| X9440WS24 | IC DUAL PROG COMP 10K 64TP SO24 |
| X9448WS24-2.7 | IC DUAL PROG COMP 10K 64TP SO24 |
| CDP68HC68T1M2 | IC RTC 32X8 NVSRAM CMOS 16-SOIC |
| X9448WS24 | IC DUAL PROG COMP 10K 64TP SO24 |
| X9438WV24-2.7 | IC DUAL DCP + OPAMP 10K 24TSSOP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X9440WV24I-2.7 | 功能描述:IC DUAL PROG COMP 10K 24TSSOP RoHS:否 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 接片:256 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 35 ppm/°C 存儲(chǔ)器類(lèi)型:非易失 接口:3 線串口 電源電壓:2.7 V ~ 5.25 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN-EP（3x3） 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:1399 (CN2011-ZH PDF) 其它名稱(chēng):MAX5423ETA+TCT |
| X9440YP24 | 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:Mixed Signal with SPI Interface |
| X9440YP242.7 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Interface IC |
| X9440YP24-2.7 | 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:Mixed Signal with SPI Interface |
| X9440YP24I | 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:Mixed Signal with SPI Interface |
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