參數(shù)資料
型號(hào): MSP430F2254IRHA
廠商: TEXAS INSTRUMENTS INC
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQCC40
封裝: GREEN, PLASTIC, QFN-40
文件頁(yè)數(shù): 39/94頁(yè)
文件大?。?/td> 1583K
代理商: MSP430F2254IRHA
UCLK
CKPL=0
CKPL=1
SIMO
1/fUCxCLK
tLO/HI
SOMI
tSU,MI
tHD,MI
tVALID,MO
MSP430F22x2
MSP430F22x4
SLAS504E
– JULY 2006 – REVISED MARCH 2011
USCI (UART Mode)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
CONDITIONS
VCC
MIN
TYP
MAX
UNIT
Internal: SMCLK, ACLK
fUSCI
USCI input clock frequency
External: UCLK
fSYSTEM
MHz
Duty cycle = 50%
± 10%
BITCLK clock frequency
fBITCLK
2.2 V/3 V
1
MHz
(equals baud rate in MBaud)
2.2 V
50
150
600
tτ
UART receive deglitch time(1)
ns
3 V
50
100
600
(1)
Pulses on the UART receive input (UCxRX) shorter than the UART receive deglitch time are suppressed. To ensure that pulses are
correctly recognized their width should exceed the maximum specification of the deglitch time.
USCI (SPI Master Mode)
(1)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
UNIT
SMCLK, ACLK
fUSCI
USCI input clock frequency
fSYSTEM
MHz
Duty cycle = 50%
± 10%
2.2 V
110
tSU,MI
SOMI input data setup time
ns
3 V
75
2.2 V
0
tHD,MI
SOMI input data hold time
ns
3 V
0
2.2 V
30
UCLK edge to SIMO valid,
tVALID,MO
SIMO output data valid time
ns
CL = 20 pF
3 V
20
(1)
fUCxCLK = 1/2tLO/HI with tLO/HI ≥ max(tVALID,MO(USCI) + tSU,SI(Slave), tSU,MI(USCI) + tVALID,SO(Slave)).
For the slave
's parameters tSU,SI(Slave) and tVALID,SO(Slave), see the SPI parameters of the attached slave.
Figure 20. SPI Master Mode, CKPH = 0
44
Copyright
2006–2011, Texas Instruments Incorporated
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MSP430F2254IRHAR 功能描述:16位微控制器 - MCU 16-bit Ultra-Lo-Pwr Microcontroller RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
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