K40P144M100SF2_11 Datasheet, PDF (54/75 Pages) Freescale Semiconductor, Inc – Up to 100 MHz ARM Cortex-M4 core with DSP instructions delivering 1.25 Dhrystone MIPS per MHz

Peripheral operating requirements and behaviors
Table 32. VREF full-range operating behaviors (continued)
Symbol
V_out
V_out
V_step
V_drift
Ac
I_bg
I_tr
T_stup
DC
Description
Voltage reference output with factory trim
Voltage reference output user trim
Voltage reference trim step
Temperature drift (Vmax -Vmin across the full
temperature range)
Aging coefficient
Bandgap only (MODE_LV = 00) current
Tight-regulation buffer (MODE_LV =10) current
Load regulation (MODE_LV = 10) current =
±1.0mA
Buffer startup time
Line regulation (power supply rejection)
Min.
TBD
1.198
—
—
—
—
—
—
—
—
–60
Typ.
—
—
0.5
—
—
—
—
—
—
—
—
Max.
TBD
1.202
—
20
TBD
TBD
1.1
TBD
Unit
V
V
mV
mV
ppm/year
µA
mA
V
Notes
See
Figure 20
100
µs
TBD
mV
TBD
dB
Symbol
T_A
Table 33. VREF limited-range operating requirements
Description
Temperature
Min.
Max.
Unit
0
50
°C
Notes
Table 34. VREF limited-range operating behaviors
Symbol
V_out
Description
Voltage reference output with factory trim
Min.
Max.
Unit
TBD
TBD
V
Notes
TBD
Figure 20. Typical output vs.temperature
TBD
Figure 21. Typical output vs. VDD
6.7 Timers
See General switching specifications.
6.8 Communication interfaces
K40 Sub-Family Data Sheet Data Sheet, Rev. 4, 3/2011.
54
Preliminary
Freescale Semiconductor, Inc.