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MSP430F2481TRGCR Datasheet

  • MSP430F2481TRGCR

  • Texas Instruments [MIXED SIGNAL MICROCONTROLLER]

  • TI

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MSP430x23x, MSP430x24x(1), MSP430x2410
MIXED SIGNAL MICROCONTROLLER
SLAS547A -- JUNE 2007 -- REVISED NOVEMBER 2007
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
crystal oscillator, LFXT1, low frequency modes (see Note 4)
PARAMETER
f
LFXT1,LF
f
LFXT1,LF,logic
LFXT1 oscillator crystal
frequency, LF mode 0, 1
LFXT1 oscillator logic level
square wave input frequency,
LF mode
TEST CONDITIONS
XTS = 0, LFXT1Sx = 0 or 1
XTS = 0, LFXT1Sx = 3,
XCAPx = 0
XTS = 0, LFXT1Sx = 0,
f
LFXT1,LF
= 32,768 kHz,
C
L,eff
= 6 pF
XTS = 0, LFXT1Sx = 0,
f
LFXT1,LF
= 32,768 kHz,
C
L,eff
= 12 pF
XTS = 0, XCAPx = 0
C
L,eff
Integrated effective load
capacitance,
capacitance LF mode
(see Note 1)
LF mode
Oscillator fault frequency,
LF mode (see Note 3)
XTS = 0, XCAPx = 1
XTS = 0, XCAPx = 2
XTS = 0, XCAPx = 3
Duty cycle
f
Fault,LF
XTS = 0, Measured at P1.4/ACLK,
f
LFXT1,LF
= 32,768 Hz
XTS = 0, LFXT1Sx = 3,
XCAPx = 0 (see Notes 2)
2.2 V/3 V
2.2 V/3 V
30
10
VCC
1.8 V to 3.6 V
1.8 V to 3.6 V
10,000
MIN
TYP
32,768
32,768
50,000
MAX
UNIT
Hz
Hz
500
k惟
OA
LF
Oscillation allowance for
LF crystals
200
1
5.5
8.5
11
50
70
10,000
k惟
pF
pF
pF
pF
%
Hz
NOTES: 1. Includes parasitic bond and package capacitance (approximately 2 pF per pin).
Since the PCB adds additional capacitance it is recommended to verify the correct load by measuring the ACLK frequency. For a
correct setup the effective load capacitance should always match the specification of the used crystal.
2. Measured with logic level input frequency but also applies to operation with crystals.
3. Frequencies below the MIN specification will set the fault flag, frequencies above the MAX specification will not set the fault flag.
Frequencies in between might set the flag.
4. To improve EMI on the LFXT1 oscillator the following guidelines should be observed.
-
Keep the trace between the device and the crystal as short as possible.
-
-
Design a good ground plane around the oscillator pins.
-
-
Prevent crosstalk from other clock or data lines into oscillator pins XIN and XOUT.
-
-
Avoid running PCB traces underneath or adjacent to the XIN and XOUT pins.
-
Use assembly materials and praxis to avoid any parasitic load on the oscillator XIN and XOUT pins.
If conformal coating is used, ensure that it does not induce capacitive/resistive leakage between the oscillator pins.
Do not route the XOUT line to the JTAG header to support the serial programming adapter as shown in other
documentation. This signal is no longer required for the serial programming adapter.
5. Applies only if using an external logic-level clock source. Not applicable when using a crystal or resonator.
-
-
-
-
-
-
internal very low power, low frequency oscillator (VLO)
PARAMETER
f
VLO
df
VLO
/dT
df
VLO
/dV
CC
VLO frequency
VLO frequency temperature drift
VLO frequency supply voltage drift
See Note 6
See Note 7
TEST CONDITIONS
VCC
2.2 V/3 V
2.2 V/3 V
1.8 V to 3.6 V
MIN
4
TYP
12
0.5
4
MAX
20
UNIT
kHz
%/擄C
%/V
NOTES: 6. Calculated using the box method:
I version: (MAX(--40 to 85_C) -- MIN(--40 to 85_C))/MIN(--40 to 85_C)/(85_C -- (--40_C))
T version: (MAX(--40 to 105_C) -- MIN(--40 to 105_C))/MIN(--40 to 105_C)/(105_C -- (--40_C))
7. Calculated using the box method: (MAX(1.8 to 3.6 V) -- MIN(1.8 to 3.6 V))/MIN(1.8 to 3.6 V)/(3.6 V -- 1.8 V)
50
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265

MSP430F2481TRGCR 產(chǎn)品屬性

  • The Ultra-Low Power MSP430MSP430 OverviewMSP430 Design ToolsMSP430 PeripheralsMSP430x2xx/4xx and Wireless OverviewPortable Medical Solutions with MSP430MSP430 for Utility Metering SolutionsMSP430: How to JTAGMSP430, How To Use the Clock SystemGrace Software Graphical User InterfaceMCU OverviewDriver LibraryMSP430Ware Overview

  • 1

  • 集成電路 (IC)

  • 嵌入式 - 微控制器，

  • MSP430F2xx

  • RISC

  • 16-位

  • 16MHz

  • I²C，IrDA，LIN，SCI，SPI，UART/USART

  • 欠壓檢測/復(fù)位，POR，PWM，WDT

  • 48

  • 48KB（48K x 8 + 256B）

  • 閃存

  • -

  • 4K x 8

  • 1.8 V ~ 3.6 V

  • -

  • 內(nèi)部

  • -40°C ~ 105°C

  • 64-VFQFN 裸露焊盤

  • Digi-Reel®

  • 296-23083-6

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