參數(shù)資料
型號(hào)： DS1077LU-40+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 20/21頁(yè)
文件大?。?/td> 0K
描述： IC ECONOSCILLATOR 40MHZ 8USOP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 50
系列： EconOscillator™
類型： 振蕩器，固定頻率（雙路）
頻率： 4.87kHz ~ 40MHz
電源電壓： 2.7 V ~ 3.6 V
電流 - 電源： 15mA
工作溫度： -40°C ~ 85°C
封裝/外殼： 8-TSSOP，8-MSOP（0.118"，3.00mm 寬）
包裝： 管件
供應(yīng)商設(shè)備封裝： 8-uMAX
安裝類型： 表面貼裝
DS1077L
8 of 21
Accordingly, the following bus conditions have been defined:
Bus not busy: Both data and clock lines remain high.
Start data transfer: A change in the state of the data line from high to low while the clock is high
defines a START condition.
Stop data transfer: A change in the state of the data line from low to high while the clock line is high
defines the STOP condition.
Data valid: The state of the data line represents valid data when, after a START condition, the data line is
stable for the duration of the HIGH period of the clock signal. The data on the line must be changed
during the LOW period of the clock signal. There is one clock pulse per bit of data.
Each data transfer is initiated with a START condition and terminated with a STOP condition. The
number of data bytes transferred between START and STOP conditions is not limited, and is determined
by the master device. The information is transferred byte-wise and each receiver acknowledges with a
ninth bit.
Within the bus specifications, a regular mode (100kHz clock rate) and a fast mode (400kHz clock rate)
are defined. The DS1077L works in both modes.
Acknowledge: Each receiving device, when addressed, is obliged to generate an acknowledge after the
reception of each byte. The master device must generate an extra clock pulse which is associated with this
acknowledge bit.
A device that acknowledges must pull down the SDA line during the acknowledge clock pulse in such a
way that the SDA line is stable low during the high period of the acknowledge-related clock pulse. Of
course, setup and hold times must be taken into account. When the DS1077L EEPROM is being written
to, it will not be able to perform additional responses. In this case, the slave DS1077L will send a ‘not
acknowledge’ to any data transfer request made by the master. It will resume normal operation when the
EEPROM operation is complete.
A master must signal an end-of-data to the slave by not generating an acknowledge bit on the last byte
that has been clocked out of the slave. In this case, the slave must leave the data line high to enable the
master to generate the STOP condition.
DATA TRANSFER ON 2-WIRE SERIAL BUS Figure 2
MSB
slave address
R/W
direction
bit
SDA
SCL
START
CONDITION
12
678
9
12
8
9
STOP CONDITION
OR
REPEATED
START CONDITION
3 - 8
acknowledgement
signal from receiver
acknowledgement
signal from receiver
ACK
repeated if more bytes
are transferred
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1077LU-40+ 功能描述:可編程振蕩器 EconOscillator/Dvdr 40Mhz 118mil 2-Wire RoHS:否 制造商:IDT 封裝 / 箱體:5 mm x 7 mm x 1.5 mm 頻率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 頻率穩(wěn)定性:+/- 50 PPM 電源電壓:3.63 V 負(fù)載電容:10 pF 端接類型:SMD/SMT 輸出格式:LVPECL 最小工作溫度:- 40 C 最大工作溫度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封裝:
DS1077LU-40+T 功能描述:可編程振蕩器 EconOscillator/Dvdr 40Mhz 118mil 2-Wire RoHS:否 制造商:IDT 封裝 / 箱體:5 mm x 7 mm x 1.5 mm 頻率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 頻率穩(wěn)定性:+/- 50 PPM 電源電壓:3.63 V 負(fù)載電容:10 pF 端接類型:SMD/SMT 輸出格式:LVPECL 最小工作溫度:- 40 C 最大工作溫度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封裝:
DS1077LU-50 功能描述:可編程振蕩器 EconOscillator/Dvdr 50Mhz 118mil 2-Wire RoHS:否 制造商:IDT 封裝 / 箱體:5 mm x 7 mm x 1.5 mm 頻率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 頻率穩(wěn)定性:+/- 50 PPM 電源電壓:3.63 V 負(fù)載電容:10 pF 端接類型:SMD/SMT 輸出格式:LVPECL 最小工作溫度:- 40 C 最大工作溫度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封裝:
DS1077LU-50+ 功能描述:可編程振蕩器 EconOscillator/Dvdr 50Mhz 118mil 2-Wire RoHS:否 制造商:IDT 封裝 / 箱體:5 mm x 7 mm x 1.5 mm 頻率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 頻率穩(wěn)定性:+/- 50 PPM 電源電壓:3.63 V 負(fù)載電容:10 pF 端接類型:SMD/SMT 輸出格式:LVPECL 最小工作溫度:- 40 C 最大工作溫度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封裝:
DS1077LU-50+T 功能描述:可編程振蕩器 EconOscillator/Dvdr 50Mhz 118mil 2-Wire RoHS:否 制造商:IDT 封裝 / 箱體:5 mm x 7 mm x 1.5 mm 頻率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 頻率穩(wěn)定性:+/- 50 PPM 電源電壓:3.63 V 負(fù)載電容:10 pF 端接類型:SMD/SMT 輸出格式:LVPECL 最小工作溫度:- 40 C 最大工作溫度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封裝:
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