K20P48M50SF0 Datasheet, PDF (44/60 Pages) Freescale Semiconductor, Inc – K20 Sub-Family

Peripheral operating requirements and behaviors
Table 27. VREF full-range operating behaviors (continued)
Symbol Description
Min.
Typ.
Max.
Unit
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
—
—
80
mV
temperature range)
I_bg
Bandgap only current
—
—
80
µA
I_lp
Low-power buffer current
—
—
360
uA
I_hp
High-power buffer current
—
—
1
mA
ΔV_LOAD Load regulation
• current = ± 1.0 mA
µV
—
200
—
Notes
1
1
1
1, 2
T_stup Buffer startup time
—
—
100
µs
V_vdrift Voltage drift (Vmax -Vmin across the full voltage
—
2
—
mV
1
range)
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
T_A
Description
Temperature
Min.
0
Max.
50
Unit
Notes
°C
Table 29. VREF limited-range operating behaviors
Symbol
V_out
Description
Voltage reference output with factory trim
Min.
Max.
Unit
1.173
1.225
V
Notes
6.7 Timers
See General switching specifications.
6.8 Communication interfaces
K20 Sub-Family Data Sheet, Rev. 4 5/2012.
44
Freescale Semiconductor, Inc.