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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)： | 7/13頁 |
| 文件大小： | 245K |
| 代理商： | CAT5132Z-100TE13 |
CAT5132
7
Doc No. 25092, Rev. 00
2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
ACKNOWLEDGE
1
START
SCL FROM
MASTER
8
9
DATA OUTPUT
FROM TRANSMITTER
DATA OUTPUT
FROM RECEIVER
Figure 4. Acknowledge Condition
SERIAL BUS PROTOCOL
The following defines the features of the 2-wire bus
protocol:
(1) Data transfer may be initiated only when the bus is
not busy.
(2) During a data transfer, the data line must remain
stable whenever the clock line is high. Any changes
in the data line while the clock is high will be
interpreted as a START or STOP condition.
The device controlling the transfer is a master, typically
a processor or controller, and the device being controlled
is the slave. The master will always initiate data transfers
and provide the clock for both transmit and receive
operations. Therefore, the CAT5132 will be considered
a slave device in all applications.
START Condition
The START Condition precedes all commands to the
device, and is defined as a HIGH to LOW transition of
SDA when SCL is HIGH. The CAT5132 monitors the
SDA and SCL lines and will not respond until this
condition is met (see Fig. 3).
STOP Condition
A LOW to HIGH transition of SDA when SCL is HIGH
determines the STOP condition. All operations must end
with a STOP condition (see Fig. 3).
Figure 3. Start/Stop Condition
START CONDITION
SDA
STOP CONDITION
SCL
Acknowledge
After a successful data transfer, each receiving device
is required to generate an acknowledge. The
Acknowledging device pulls down the SDA line during
the ninth clock cycle, signaling that it received the 8 bits
of data (see Fig. 4).
The CAT5132 responds with an acknowledge after
receiving a START condition and its slave address. If
the device has been selected along with a write operation,
it responds with an acknowledge after receiving each
8-bit byte.
When the CAT5132 is in a READ mode it transmits 8 bits
of data, releases the SDA line, and monitors the line for
an acknowledge. Once it receives this acknowledge,
the CAT5132 will continue to transmit data. If no
acknowledge is sent by the Master, the device terminates
data transmission and waits for a STOP condition.
Acknowledge Polling
The disabling of the inputs can be used to take advantage
of the typical write cycle time. Once the stop condition is
issued to indicate the end of the host's write operation,
the CAT5132 initiates the internal write cycle. ACK
polling can be initiated immediately. This involves issuing
the start condition followed by the slave address. If the
CAT5132 is still busy with the write operation, no ACK
will be returned. If the CAT5132 has completed the write
operation, an ACK will be returned and the host can then
proceed with the next instruction operation.
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PDF描述 |
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| CAT5132Z-10TE13 | 15 Volt Digitally Programmable Potentiometer (DPP) with 128 Taps and 2-wire Interface |
| CAT5132R-100TE13 | 15 Volt Digitally Programmable Potentiometer (DPP) with 128 Taps and 2-wire Interface |
| CAT5132R-10TE13 | 15 Volt Digitally Programmable Potentiometer (DPP) with 128 Taps and 2-wire Interface |
| CAT5132Z-50TE13 | MS27495R16 |
| CAT514 | 8-Bit Quad Digital POT(四路，8位數(shù)字電位器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CAT5132ZGI-10 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT5132ZI-00-G | 功能描述:數(shù)字電位計(jì) IC Ind Temp 100K 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 |
| CAT5132ZI-00-GT3 | 功能描述:數(shù)字電位計(jì) IC DPP 15V 128 taps I2C 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 |
| 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 |
| CAT5132ZI-10-GT3 | 功能描述:數(shù)字電位計(jì) IC DPP,15V,128 taps,I2C 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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