I2C-bus: The serial revolution By replacing complex parallel interfaces with a s" />
參數(shù)資料
型號(hào): PCA9629PW,118
廠商: NXP Semiconductors
文件頁(yè)數(shù): 2/8頁(yè)
文件大小: 0K
描述: IC CTLR I2C STEP MOTOR 16-TSSOP
產(chǎn)品培訓(xùn)模塊: Stepper Motor Controller
標(biāo)準(zhǔn)包裝: 1
應(yīng)用: 步進(jìn)電機(jī)驅(qū)動(dòng)器
輸出數(shù): 1
電源電壓: 4.5 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 16-TSSOP
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: 568-9471-6
I2C-bus: The serial revolution
By replacing complex parallel interfaces with a straightforward yet powerful serial
structure, the I2C-bus revolutionized chip-to-chip communications.
Invented by NXP (Philips) more than 30 years ago, the I2C-bus uses a simple two-wire
format to carry data one bit at a time. It performs inter-chip addressing, selection,
control, and data transfer. Speeds are up to 400 kHz (Fast-mode), 1 MHz (Fast-mode
Plus), 3.4 MHz (High Speed-mode), or 5 MHz (Ultra Fast-mode).
The I2C-bus shrinks the IC footprint and leads to lower IC costs. Plus, since far fewer
copper traces are needed, it enables a smaller PCB, reduces design complexity, and
lowers system cost.
SDA
SCL
uC
A0
A1
1010A2A1A0R/W
A2
New function address
1010011 R/W
New function address
as assigned
New
function
MCU
RTC
LCD
I/O
A/D
D/A
I2C-bus devices are available in a wide range of functions. Each slave device has its own I2C-bus address, selectable using
address pins set high (1) or low (0). Information is transmitted byte by byte, and each byte is acknowledged by the receiver.
There can be multiple devices on the same bus, and more than one IC can act as master. The master role is typically played by a
microcontroller.
Parallel Interface
I2C Serial Interface
Master
Write data
Slave
SDA
SCL
transmitter
P
W
S
data
slave address
data
A
receiver
SDA
SCL
transmitter
receiver
Read data
P
R
S
data
slave address
data
A
<
n data bytes
>
last data byte
S = Start condition
R/W = read/write
A = Acknowledge
A = Not acknowledge P = Stop condition
The master always sends the clock
< n data >
bytes
相關(guān)PDF資料
PDF描述
VE-B7T-EX CONVERTER MOD DC/DC 6.5V 75W
RBM15DRTF CONN EDGECARD 30POS DIP .156 SLD
RYM06DRST CONN EDGECARD 12POS DIP .156 SLD
RMM06DRST CONN EDGECARD 12POS DIP .156 SLD
21020-0255 CABLE FLAT FLEX 4" .50MM 24 POS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCA9632DP1,118 功能描述:LED照明驅(qū)動(dòng)器 4-BIT FM+I2C-BUS RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
PCA9632DP1-T 功能描述:LED照明驅(qū)動(dòng)器 4-BIT FM+I2C-BUS LOW POWER LED RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
PCA9632DP2 制造商:NXP Semiconductors 功能描述:IC LED DRIVER RGBA 10-TSSOP 制造商:NXP Semiconductors 功能描述:IC, LED DRIVER, RGBA, 10-TSSOP
PCA9632DP2,118 功能描述:LED照明驅(qū)動(dòng)器 4-BIT FM+I2C-BUS RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
PCA9632DP2118 制造商:NXP Semiconductors 功能描述:IC LED DRVR TSSOP