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參數(shù)資料
| 型號(hào)： | CAT5132Z-100TE13 |
| 元件分類： | 數(shù)字電位計(jì) |
| 英文描述： | 15 Volt Digitally Programmable Potentiometer (DPP) with 128 Taps and 2-wire Interface |
| 中文描述： | 15伏數(shù)字可編程電位（民進(jìn)黨）的128抽頭和2線接口 |
| 文件頁數(shù)： | 10/13頁 |
| 文件大?。?/td> | 245K |
| 代理商： | CAT5132Z-100TE13 |
CAT5132
10
Doc. No. 25092, Rev. 00
2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Data Register (DR)
The Data Register (DR) is a nonvolatile register and its
contents are automatically written to the Wiper Control
Register (WCR) on power-up. It can be read at any time
without effecting the value of the WCR. The DR, like the
WCR, only stores the 7 LSB bits and will report the MSB
bit as a
“
0
”
. Writing to the DR is performed in the same
fashion as the WCR except that a time delay of up to 5ms
is experienced while the nonvolatile store operation is
being performed. During the internal non-volatile write
cycle, the device ignores transitions at the SDA and SCL
pins, and the SDA output is at a high impedance state.
The WCR is also written during a write to DR. After a DR
WRITE is complete the DR and WCR will contain the
same wiper position.
X
X
X
X
X
X
X
A
X
A
h
2
0
-
s
s
e
d
a
R
T
S
0
1
0
1
0
0
0
0
A
0
0
0
0
0
0
1
0
A
0
0
0
0
0
0
0
0
A
P
S
S
A
A
S
I
I
I
I
I
A
A
W
A
DR(00h) selection
T
S
0
1
0
1
0
0
0
0
A
0
0
0
0
0
0
0
0
A
P
S
slave address byte
DR address - 00h
data byte
S
A
A
S
A
1st byte
2nd byte
3rd byte
To write or read to the DR, first the access to DR is selected, see table 1 then the data is written or read using the
following sequences.
A write operation (see Table 6) requires a Start condition, followed by a valid slave address byte, a valid address byte
00h, a data byte and a STOP condition. After each of the three bytes the CAT5132 responds with an acknowledge.
At this time the data is written both to volatile and non-volatile registers, then the device enters its standby state.
A read operation (see Table 7) requires a Start condition, followed by a valid slave address byte, a valid address byte
00h, a second Start and a second slave address byte for read. After each of the three bytes the CAT5132 responds
with an acknowledge and then the device transmits the data byte. The master terminates the read operation by issuing
a STOP condition following the last bit of Data byte.
Table 6. DR Write Operation
Table 7. DR Read Operation
A
h
2
0
-
s
s
e
d
a
R
T
S
0
1
0
1
0
0
0
0
A
0
0
0
0
0
0
1
0
A
0
0
0
0
0
0
0
0
S
A
A
S
I
I
I
I
I
A
A
W
A
DR(00h) selection
T
S
0
1
0
1
0
0
0
0
A
0
0
0
0
0
0
0
0
slave address byte
DR address - 00h
A
S
T
S
0
1
0
1
0
0
0
1
A
0
X
X
X
X
X
X
X
slave address byte
data byte
S
SP
S
1st byte
2nd byte
3rd byte
A
SP
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| CAT5132ZI-10-G | 功能描述:數(shù)字電位計(jì) IC Ind Temp 10K 2-Wire 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 |
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