Datasheet

Table 55. IRC48M specifications (continued)
Symbol Description Min. Typ. Max. Unit Notes
• Regulator enable
(USB_CLK_RECOVER_IRC_EN[REG_EN]=1)
Δf
irc48m_cl
Closed loop total deviation of IRC48M frequency
over voltage and temperature
— — ± 0.1 %f
host
1
J
cyc_irc48m
Period Jitter (RMS) — 35 150 ps
t
irc48mst
Startup time — 2 3 μs 2
1. Closed loop operation of the IRC48M is only feasible for USB device operation; it is not usable for USB host operation. It
is enabled by configuring for USB Device, selecting IRC48M as USB clock source, and enabling the clock recover
function (USB_CLK_RECOVER_CTRL[CLOCK_RECOVER_EN]=1, USB_CLK_RECOVER_IRC_EN[IRC_EN]=1).
2. IRC48M startup time is defined as the time between clock enablement and clock availability for system use. Enable the
clock by one of the following settings:
• USB_CLK_RECOVER_IRC_EN[IRC_EN]=1, or
• MCG_C7[OSCSEL]=10, or
• SIM_SOPT2[PLLFLLSEL]=11
5.4.2.3 Oscillator electrical specifications
5.4.2.3.1 Oscillator DC electrical specifications
Table 56. Oscillator DC electrical specifications
Symbol Description Min. Typ. Max. Unit Notes
V
DD
Supply voltage 1.71 — 3.6 V
I
DDOSC
Supply current — low-power mode (HGO=0)
• 32 kHz
• 4 MHz
• 8 MHz (RANGE=01)
• 16 MHz
• 24 MHz
• 32 MHz
—
—
—
—
—
—
600
200
300
950
1.2
1.5
—
—
—
—
—
—
nA
μA
μA
μA
mA
mA
1
I
DDOSC
Supply current — high gain mode (HGO=1)
• 32 kHz
• 4 MHz
• 8 MHz (RANGE=01)
• 16 MHz
• 24 MHz
• 32 MHz
—
—
—
—
—
—
7.5
500
650
2.5
3.25
4
—
—
—
—
—
—
μA
μA
μA
mA
mA
mA
1
C
x
EXTAL load capacitance — — — 2, 3
C
y
XTAL load capacitance — — — 2, 3
Table continues on the next page...
Electrical characteristics
92
Kinetis KL82 Microcontroller, Rev. 3, 08/2016
NXP Semiconductors