mfr4300 Freescale Semiconductor, Inc, mfr4300 Datasheet - Page 217

• Manufacturer Part Number: mfr4300
• Description: Flexray Communication Controllers
• Manufacturer: Freescale Semiconductor, Inc

5.2
Due to the nature of VREG3V3V2 being a voltage regulator providing the chip internal power supply
voltages most signals are power supply signals connected to pads.
Table 5-1
5.2.1
Signal V
through this pin. A chip external decoupling capacitor (100 nF
V
For entering shutdown mode, pin V
V
5.2.2
Signals V
regulator. Internal precision reference circuits are supplied from these signals. A chip external decoupling
capacitor (100 nF
supply.
Freescale Semiconductor
SSR
DDOSC
can smoothen ripple on V
V
V
/V
Name
DDR
V
V
V
V
DDOSC
SSOSC
V
External Signal Description
V
DDA
shows all signals of VREG3V3V2 associated with pins.
DDR
DDA
SSR
SSA
DD
SS
SSOSC
V
V
is the power input of VREG3V3V2. All currents sourced into the regulator loads flow
DDR
DDA
/V
Check device overview chapter for connectivity of the signals.
SSA
…
must be provided externally.
, V
, V
220 nF, X7R ceramic) between V
which are supposed to be relatively quiet are used to supply the analog parts of the
SSR
SSA
Port
—
—
—
—
—
—
—
—
— Regulator Reference Supply
— Regulator Power Input
Table 5-1. VREG3V3V2 — Signal Properties
DDR
VREG3V3V2 power input (positive supply)
VREG3V3V2 power input (ground)
VREG3V3V2 quiet input (positive supply)
VREG3V3V2 quiet input (ground)
VREG3V3V2 primary output (positive supply)
VREG3V3V2 primary output (ground)
VREG3V3V2 secondary output (positive supply)
VREG3V3V2 secondary output (ground)
DDR
.
MFR4300 Data Sheet, Rev. 3
must be tied to ground. In that case, V
NOTE
Function
DDA
and V
…
SSA
220 nF, X7R ceramic) between V
can further improve the quality of this
Dual Output Voltage Regulator (VREG3V3V2)
DD
/V
Reset State
SS
—
—
—
—
—
—
—
—
and
DDR
Pullup
—
—
—
—
—
—
—
—
and
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