K50P81M72SF1 Datasheet, PDF (60/78 Pages) Freescale Semiconductor, Inc – K50 Sub-Family

Peripheral operating requirements and behaviors
6.8.3 USB VREG electrical specifications
Table 43. USB VREG electrical specifications
Symbol Description
VREGIN Input supply voltage
I_DDon
Quiescent current — Run mode, load current
equal zero, input supply (VREGIN) > 3.6 V
I_DDstby Quiescent current — Standby mode, load
current equal zero
I_DDoff
Quiescent current — Shutdown mode
• VREGIN = 5.0 V and temperature=25C
• Across operating voltage and temperature
Min.
2.7
—
—
—
—
Typ.¹
—
120
1.1
650
—
Max.
5.5
186
1.54
—
4
Unit
Notes
V
μA
μA
nA
μA
I_LOADrun
I_LOADstby
V_Reg33out
Maximum load current — Run mode
Maximum load current — Standby mode
Regulator output voltage — Input supply
(VREGIN) > 3.6 V
• Run mode
• Standby mode
V_Reg33out Regulator output voltage — Input supply
(VREGIN) < 3.6 V, pass-through mode
C_OUT External output capacitor
ESR
External output capacitor equivalent series
resistance
I_LIM
Short circuit current
—
—
120
mA
—
—
1
mA
3
3.3
3.6
V
2.1
2.8
3.6
V
2.1
—
3.6
V
2
1.76
2.2
8.16
μF
1
—
100
mΩ
—
290
—
mA
1. Typical values assume VREGIN = 5.0 V, Temp = 25 °C unless otherwise stated.
2. Operating in pass-through mode: regulator output voltage equal to the input voltage minus a drop proportional to I_Load.
6.8.4 DSPI switching specifications (limited voltage range)
The DMA Serial Peripheral Interface (DSPI) provides a synchronous serial bus with
master and slave operations. Many of the transfer attributes are programmable. The tables
below provide DSPI timing characteristics for classic SPI timing modes. Refer to the
DSPI chapter of the Reference Manual for information on the modified transfer formats
used for communicating with slower peripheral devices.
Table 44. Master mode DSPI timing (limited voltage range)
Num
Description
Operating voltage
Frequency of operation
Min.
2.7
—
Max.
3.6
25
Unit
V
MHz
Notes
Table continues on the next page...
K50 Sub-Family Data Sheet, Rev. 2, 4/2012.
60
Freescale Semiconductor, Inc.