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MSP430FG479 数据表(PDF) 43 Page - Texas Instruments

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部件名 MSP430FG479
功能描述  MSP430FG47x Mixed-Signal Microcontrollers
Download  97 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

MSP430FG479 数据表(HTML) 43 Page - Texas Instruments

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MSP430FG479, MSP430FG478, MSP430FG477
www.ti.com
SLAS580E – OCTOBER 2008 – REVISED MAY 2020
Submit Documentation Feedback
Product Folder Links: MSP430FG479 MSP430FG478 MSP430FG477
Specifications
Copyright © 2008–2020, Texas Instruments Incorporated
(1)
The DCO wake-up time must be considered in LPM3 or LPM4 for baud rates above 1 MHz.
(2)
Pulses on the UART receive input (UCxRX) shorter than the UART receive deglitch time are suppressed.
5.46
USCI (UART Mode)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX UNIT
fUSCI
USCI input clock frequency
Internal: SMCLK, ACLK
External: UCLK
Duty cycle = 50% ±10%
fSYSTEM MHz
fBITCLK
BITCLK clock frequency
(equals baud rate in MBaud)(1)
2.2 V, 3 V
2
MHz
tτ
UART receive deglitch time UART(2)
2.2 V
50
150
600
ns
3 V
50
100
600
(1)
fUCxCLK = 1/2tLO/HI with tLO/HI ≥ max(tVALID,MO(USCI) + tSU,SI(Slave), tSU,MI(USCI) + tVALID,SO(Slave))
For the slave parameters tSU,SI(Slave) and tVALID,SO(Slave), see the SPI parameters of the attached slave.
5.47
USCI (SPI Master Mode)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
(1) (see Figure 5-31
and Figure 5-32)
PARAMETER
TEST CONDITIONS
VCC
MIN
MAX
UNIT
fUSCI
USCI input clock frequency
SMCLK, ACLK
Duty cycle = 50% ±10%
fSYSTEM
MHz
tSU,MI
SOMI input data setup time
2.2 V
110
ns
3 V
75
tHD,MI
iSOMI input data hold time
2.2 V
0
ns
3 V
0
tVALID,MO
SIMO output data valid time
UCLK edge to SIMO valid, CL = 20 pF
2.2 V
30
ns
3 V
20
(1)
fUCxCLK = 1/2tLO/HI with tLO/HI ≥ max(tVALID,MO(Master) + tSU,SI(USCI), tSU,MI(Master) + tVALID,SO(USCI))
For the master parameters tSU,MI(Master) and tVALID,MO(Master), see the SPI parameters of the attached master.
5.48
USCI (SPI Slave Mode)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
(1) (see Figure 5-33
and Figure 5-34)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX UNIT
tSTE,LEAD
STE lead time
STE low to clock
2.2 V, 3 V
50
ns
tSTE,LAG
STE lag time
Last clock to STE high
2.2 V, 3 V
10
ns
tSTE,ACC
STE access time
STE low to SOMI data out
2.2 V, 3 V
50
ns
tSTE,DIS
STE disable time
STE high to SOMI high impedance
2.2 V, 3 V
50
ns
tSU,SI
SIMO input data setup time
2.2 V
20
ns
3 V
15
tHD,SI
SIMO input data hold time
2.2 V
10
ns
3 V
10
tVALID,SO
SOMI output data valid time
UCLK edge to SOMI valid, CL = 20 pF
2.2 V
75
110
ns
3 V
50
75


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