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參數(shù)資料
型號： TPS65930BZCH
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PBGA139
封裝： 10 X 10 MM, 0.65 MM PITCH, GREEN, PLASTIC, NFBGA-139
文件頁數(shù)： 112/115頁
文件大小： 1232K
代理商： TPS65930BZCH
I2C.SCL
I2C.SDA
1
8
9
1
8
9
MSB
LSB
ACK
MSB
LSB
ACK
I1
I2
I3
I4
I7
I8
I9
START
RESTART
STOP
037-033
SWCS037G
– MAY 2008 – REVISED APRIL 2011
12.3 I
2C Timing
The TPS65920/TPS65930 device provides two I2C HS slave interfaces (one for general-purpose and one
for SmartReflex). These interfaces support standard mode (100 Kbps), fast mode (400 Kbps), and HS
mode (3.4 Mbps). The general-purpose I2C module embeds four slave hard-coded addresses (ID1 = 48h,
ID2 = 49h, ID3 = 4Ah, and ID4 = 4Bh). The SmartReflex I2C module uses one slave hard-coded address
(ID5). The master mode is not supported.
Table 12-3 and Table 12-4 assume testing over the recommended operating conditions (see Figure 12-1).
Figure 12-1. I2C Interface
—Transmit and Receive in Slave Mode
Table 12-3. I2C Interface
—Timing Requirements(1) (2)
Notation
Parameter
Min
Max
Unit
Slave HS Mode
I3
tsu(SDA-SCLH)
Setup time, SDA valid to SCL high
10
ns
I4
th(SCLL-SDA)
Hold time, SDA valid from SCL low
0
70
ns
I7
tsu(SCLH-SDAL)
Setup time, SCL high to SDA low
160
ns
I8
th(SDAL-SCLL)
Hold time, SCL low from SDA low
160
ns
I9
tsu(SDAH-SCLH)
Setup time, SDA high to SCL high
160
ns
Slave Fast-Speed Mode
I3
tsu(SDA-SCLH)
Setup time, SDA valid to SCL high
100
ns
I4
th(SCLL-SDA)
Hold time, SDA valid from SCL low
0
0.9
ns
I7
tsu(SCLH-SDAL)
Setup time, SCL high to SDA low
0.6
ns
I8
th(SDAL-SCLL)
Hold time, SCL low from SDA low
0.6
ns
I9
tsu(SDAH-SCLH)
Setup time, SDA high to SCL high
0.6
ns
Slave Standard Mode
I3
tsu(SDA-SCLH)
Setup time, SDA valid to SCL high
250
ns
I4
th(SCLL-SDA)
Hold time, SDA valid from SCL low
0
ns
I7
tsu(SCLH-SDAL)
Setup time, SCL high to SDA low
4.7
ns
I8
th(SDAL-SCLL)
Hold time, SCL low from SDA low
4
ns
I9
tsu(SDAH-SCLH)
Setup time, SDA high to SCL high
4
ns
(1)
The input timing requirements are given by considering a rising or falling time of:
80 ns in HS mode (3.4 Mbps)
300 ns in fast-speed mode (400 Kbps)
1000 ns in standard mode (100 Kbps)
(2)
SDA is equal to I2C.SR.SDA or I2C.CNTL.SDA.
SCL is equal to I2C.SR.SCL or I2C.CNTL.SCL.
Table 12-4 lists the switching requirements of the I2C interface.
96
Timing Requirements and Switching Characteristics
Copyright
2008–2011, Texas Instruments Incorporated
focus.ti.com: TPS65930/TPS65920
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相關代理商/技術參數(shù)
參數(shù)描述
TPS65930BZCH 制造商:Texas Instruments 功能描述:IC POWER MANAGEMENT ((NW))
TPS65930BZCHR 功能描述:開關變換器、穩(wěn)壓器與控制器 Int Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
TPS65950A2ZXN 功能描述:PMIC 解決方案 Integ Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
TPS65950A2ZXNR 功能描述:PMIC 解決方案 Integ Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
TPS65950A3ZXN 功能描述:PMIC 解決方案 Integrated Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
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