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參數(shù)資料
| 型號： | DS1089LU-C29+W |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 0K |
| 描述： | IC ECONOSCILL 3.3V SS 8-USOP |
| 其它有關(guān)文件： | Automotive Product Guide |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 50 |
| 系列： | EconOscillator™ |
| 類型： | 時鐘發(fā)生器 |
| PLL： | 無 |
| 輸入： | 時鐘 |
| 輸出： | 時鐘 |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:1 |
| 差分 - 輸入:輸出： | 無/無 |
| 頻率 - 最大： | 66MHz |
| 除法器/乘法器： | 是/無 |
| 電源電壓： | 2.7 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-uMAX |
| 包裝： | 管件 |
DS1089L
3.3V Center Spread-Spectrum EconOscillator
____________________________________________________________________
11
SDA
SCL
tHD:STA
tLOW
tHIGH
tR
tF
tBUF
tHD:DAT
tSU:DAT
REPEATED
START
tSU:STA
tHD:STA
tSU:STO
tSP
STOP
START
Figure 5. I2C AC Characteristics
SLAVE
ACK
10
1
R/W
A0*
A1*
SLAVE
ACK
A2*
MSB
LSB
DEVICE IDENTIFIER
DEVICE
ADDRESS
READ/
WRITE
MSB
LSB
COMMAND/REGISTER ADDRESS
SLAVE
ACK
MSB
LSB
b7
b6
b5
b4
b3
b2
b1
b0
SLAVE
ACK
STOP
*THE ADDRESS DETERMINED BY A0, A1, AND A2 MUST
MATCH THE ADDRESS SET IN THE ADDR REGISTER.
DATA
TYPICAL I2C WRITE TRANSACTION
EXAMPLE I2C TRANSACTIONS (WHEN A0, A1, AND A2 ARE ZERO)
A) SINGLE BYTE WRITE
-WRITE PRESCALER
REGISTER TO 128
B) SINGLE BYTE READ
-READ PRESCALER
REGISTER
START
B0h
SLAVE
ACK
SLAVE
ACK
02h
SLAVE
ACK
SLAVE
ACK
DATA
SLAVE
ACK
STOP
10110000
b7
b6
b5
b4
b3
b2
b1
b0
00000010
10000000
00000010
REPEATED
START
DATA
MASTER
NACK
STOP
SLAVE
ACK
10110001
B1h
Figure 6. I2C Transactions
Applications Information
Power-Supply Decoupling
To achieve the best results when using the DS1089L,
decouple the power supply with 0.01F and 0.1F
high-quality, ceramic, surface-mount capacitors.
Surface-mount components minimize lead inductance,
which improves performance, and ceramic capacitors
tend to have adequate high-frequency response for
decoupling applications. These capacitors should be
placed as close to the VCC and GND pins as possible.
Stand-Alone Mode
SCL and SDA cannot be left floating even in stand-
alone mode. If the DS1089L will never need to be pro-
grammed in-circuit, including during production
testing, SDA and SCL can be connected high.
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