參數(shù)資料
型號(hào): MSP430F2274MDATEP
廠商: TEXAS INSTRUMENTS INC
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, RISC MICROCONTROLLER, PDSO38
封裝: GREEN, PLASTIC, TSSOP-38
文件頁(yè)數(shù): 33/80頁(yè)
文件大?。?/td> 1269K
代理商: MSP430F2274MDATEP
SDA
SCL
t
LOW
tHD ,DAT
tSU ,DAT
tHD ,STA
tSU ,STA tHD ,STA
tHIGH
tSU ,STO
tSP
tBUF
SLAS614D
– SEPTEMBER 2008 – REVISED MAY 2011
USCI (I2C Mode)
– Electrical Characteristics
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 24)
PARAMETER
TEST CONDITIONS
TA
VCC
MIN
TYP
MAX
UNIT
Internal: SMCLK, ACLK,
fSYST
fUSCI
USCI input clock frequency
External: UCLK,
MHz
EM
Duty cycle = 50%
± 10%
fSCL
SCL clock frequency
–55°C to 125°C
2.2 V/3 V
0
400
kHz
fSCL ≤ 100 kHz
–55°C to 125°C
4.0
tHD,STA
Hold time (repeated) START
2.2 V/3 V
μs
fSCL > 100 kHz
–55°C to 125°C
0.6
fSCL ≤ 100 kHz
–55°C to 125°C
4.7
Set-up time for a repeated
tSU,STA
2.2 V/3 V
μs
START
fSCL > 100 kHz
–55°C to 125°C
0.6
tHD,DAT
Data hold time
–55°C to 125°C
2.2 V/3 V
0
ns
tSU,DAT
Data set-up time
–55°C to 125°C
2.2 V/3 V
250
ns
tSU,STO
Set-up time for STOP
–55°C to 125°C
2.2 V/3 V
4.0
μs
2.2 V
50
150
600
Pulse width of spikes
tSP
–55°C to 125°C
ns
suppressed by input filter
3 V
50
100
600
Figure 24. I2C Mode Timing
Copyright
2008–2011, Texas Instruments Incorporated
39
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