Datasheet

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MSP432P401R, MSP432P401M
www.ti.com SLAS826 –MARCH 2015
Table 5-20. High-Frequency Crystal Oscillator, HFXT
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
f
OSC
= 1 MHz,
HFXTBYPASS = 0, HFXTDRIVE = 0,
HFFREQ = 0 40
C
L,eff
= 16 pF
Typical ESR , C
SHUNT
f
OSC
= 4 MHz,
HFXTBYPASS = 0, HFXTDRIVE = 1,
HFFREQ = 0 60
C
L,eff
= 16 pF
Typical ESR , C
SHUNT
f
OSC
= 8 MHz,
HFXTBYPASS = 0, HFXTDRIVE = 1,
HFFREQ = 1 120
C
L,eff
= 16 pF
Typical ESR , C
SHUNT
f
OSC
= 16 MHz,
HFXTBYPASS = 0, HFXTDRIVE = 1,
HFFREQ = 2 200
C
L,eff
= 16 pF
Typical ESR , C
SHUNT
HFXT oscillator crystal current HF
I
DVCC,HFXT
3.0 V μA
mode at typical ESR
f
OSC
= 24 MHz,
HFXTBYPASS = 0, HFXTDRIVE = 1,
HFFREQ = 3 260
C
L,eff
= 16 pF
Typical ESR , C
SHUNT
f
OSC
= 32 MHz,
HFXTBYPASS = 0, HFXTDRIVE = 1,
HFFREQ = 4 330
C
L,eff
= 16 pF
Typical ESR , C
SHUNT
f
OSC
= 40 MHz
HFXTBYPASS = 0, HFXTDRIVE = 1,
HFFREQ = 5 460
C
L,eff
= 16 pF
Typical ESR , C
SHUNT
f
OSC
= 48 MHz
HFXTBYPASS = 0, HFXTDRIVE = 1,
HFFREQ = 6 530
C
L,eff
= 16 pF
Typical ESR , C
SHUNT
HFXTBYPASS = 0, HFFREQ = 0
(1)
1 4
HFXTBYPASS = 0, HFFREQ = 1
(1)
4.01 8
HFXTBYPASS = 0, HFFREQ = 2
(1)
8.01 16
HFXT oscillator crystal frequency,
f
HFXT
HFXTBYPASS = 0, HFFREQ = 3
(1)
16.01 24 MHz
crystal mode
HFXTBYPASS = 0, HFFREQ = 4
(1)
24.01 32
HFXTBYPASS = 0, HFFREQ = 5
(1)
32.01 40
HFXTBYPASS = 0, HFFREQ = 6
(1)
40.01 48
Measured at MCLK or HSMCLK.
DC
HFXT
HFXT oscillator duty cycle 40% 50% 60%
f
HFXT
= 1 MHz - 48 MHz
HFXT oscillator logic-level
f
HFXT,SW
square-wave input frequency, HFXTBYPASS = 1
(2) (1)
0.8 48 MHz
bypass mode
(1) Maximum frequency of operation of the entire device cannot be exceeded.
(2) When HFXTBYPASS is set, HFXT circuits are automatically powered down. Input signal is a digital square wave with parametrics
defined in the Schmitt-trigger Inputs section of this datasheet. Duty cycle requirements are defined by DC
HFXT, SW
.
Copyright © 2015, Texas Instruments Incorporated Specifications 31
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