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參數(shù)資料
| 型號(hào)： | LP3972 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Power Management Unit for Advanced Application Processors |
| 中文描述： | 電源管理單元的高級(jí)應(yīng)用處理器 |
| 文件頁數(shù)： | 23/59頁 |
| 文件大?。?/td> | 1072K |
| 代理商： | LP3972 |
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I
2
C Compatible Interface
(Continued)
MULTI-BYTE I
2
C COMMAND SEQUENCE
To correctly function with the Monahan’s Power Manage-
ment I
2
C the LP3972’s I
2
C serial interface shall support
Random register Multi-byte command sequencing: During a
multi-byte write the Master sends the Start command fol-
lowed by the Device address, which is sent only once,
followed by the 8 Bit register address, then 8-bits of data.
The I
2
C slave must then accept the next random register
address followed by 8 bits of data and continue this process
until the master sends a valid stop condition.
A Typical Multi-byte random register transfer is outlined
below:
Device Address,
Register A Address, Ach, Register A
Data, Ach Register M Address, Ach,
Register M Data, Ach Register X
Address, Ach, Register X Data, Ach
Register Z Address, Ach, Register Z
Data, Ach, Stop
Note:
the PMIC is not required to see the I
2
C device address
for each transaction. A, M, X, and Z are Random numbers.
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INCREMENTAL REGISTER I
2
C COMMAND SEQUENCE
The LP3972 supports address increment (burst mode).
When you have defined register address n data bytes can be
sent and register address is incremented after each data
byte has been sent. Address incrimination may be required
for non XScale applications. User can define whether multi-
byte (default) to random address or address incrimination
will be used.
20207643
L
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP3972_08 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Power Management Unit for Advanced Application Processors |
| LP3972SQ-0514/NOPB | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| LP3972SQ-5810/NOPB | 功能描述:監(jiān)控電路 Pwr Mgmt Unit RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| LP3972SQ-A413 | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| LP3972SQ-A413/NOPB | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
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