Information

Table 27. VREF full-range operating behaviors (continued)
Symbol Description Min. Typ. Max. Unit Notes
V
out
Voltage reference output — factory trim 1.1584 — 1.2376 V
V
out
Voltage reference output — user trim 1.193 — 1.197 V
V
step
Voltage reference trim step — 0.5 — mV
V
tdrift
Temperature drift (Vmax -Vmin across the full
temperature range)
— — 80 mV
I
bg
Bandgap only current — — 80 µA 1
I
lp
Low-power buffer current — — 360 uA 1
I
hp
High-power buffer current — — 1 mA 1
ΔV
LOAD
Load regulation
• current = ± 1.0 mA — 200 —
µV 1, 2
T
stup
Buffer startup time — — 100 µs
V
vdrift
Voltage drift (Vmax -Vmin across the full voltage
range)
— 2 — mV 1
1. See the chip's Reference Manual for the appropriate settings of the VREF Status and Control register.
2. Load regulation voltage is the difference between the VREF_OUT voltage with no load vs. voltage with defined load
Table 28. VREF limited-range operating requirements
Symbol Description Min. Max. Unit Notes
T
A
Temperature 0 50 °C
Table 29. VREF limited-range operating behaviors
Symbol Description Min. Max. Unit Notes
V
out
Voltage reference output with factory trim 1.173 1.225 V
6.7 Timers
See General switching specifications.
6.8 Communication interfaces
Peripheral operating requirements and behaviors
K20 Sub-Family Data Sheet, Rev. 4 5/2012.
44 Freescale Semiconductor, Inc.