AM1810_15 Datasheet, PDF (65/262 Pages) Texas Instruments – AM1810 ARM® Microprocessor For PROFIBUS

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AM1810
SPRS709D – NOVEMBER 2010 – REVISED MARCH 2014
5.3 Recommended Operating Conditions
NAME
DESCRIPTION
CONDITION
MIN
CVDD
Core Logic Supply Voltage (variable) 1.2V operating point
1.14
1.1V operating point
1.05
1.0V operating point
0.95
RVDD
Internal RAM Supply Voltage
375 MHz versions
1.14
RTC_CVDD ⁽¹⁾ RTC Core Logic Supply Voltage
0.9
PLL0_VDDA
PLL0 Supply Voltage
1.14
PLL1_VDDA
PLL1 Supply Voltage
1.14
SATA_VDD
SATA Core Logic Supply Voltage
1.14
USB_CVDD
USB0, USB1 Core Logic Supply Voltage
1.14
USB0_VDDA18 USB0 PHY Supply Voltage
1.71
USB0_VDDA33 USB0 PHY Supply Voltage
3.15
USB1_VDDA18 USB1 PHY Supply Voltage
1.71
USB1_VDDA33 USB1 PHY Supply Voltage
3.15
Supply
Voltage
DVDD18 ⁽²⁾
1.8V Logic Supply
1.71
SATA_VDDR
SATA PHY Internal Regulator Supply Voltage
1.71
DDR_DVDD18
(2)
DDR2 PHY Supply Voltage
1.71
NOM
1.2
1.1
1.0
1.2
1.2
1.2
1.2
1.2
1.2
1.8
3.3
1.8
3.3
1.8
1.8
1.8
MAX
1.32
1.16
1.05
1.32
1.32
1.32
1.32
1.32
1.32
1.89
3.45
1.89
3.45
1.89
1.89
1.89
UNIT
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Supply
Ground
Voltage
Input High
Voltage
Input Low
DDR_VREF
DDR2/mDDR reference voltage
0.49*
DDR_DVDD18
0.5*
DDR_DVDD1
8
0.51*
DDR_DVDD18
V
DDR_ZP
DDR2/mDDR impedance control,
connected via 50Ω resistor to Vss
Vss
V
DVDD3318_A
Power Group A Dual-voltage IO
Supply Voltage
1.8V operating point
3.3V operating point
1.71
3.15
1.8
3.3
1.89
V
3.45
V
DVDD3318_B
Power Group B Dual-voltage IO
Supply Voltage
1.8V operating point
3.3V operating point
1.71
3.15
1.8
3.3
1.89
V
3.45
V
DVDD3318_C
Power Group C Dual-voltage IO
Supply Voltage
1.8V operating point
3.3V operating point
1.71
3.15
1.8
3.3
1.89
V
3.45
V
VSS
Core Logic Digital Ground
V
PLL0_VSSA
PLL1_VSSA
SATA_VSS
OSCVSS ⁽³⁾
RTC_VSS ⁽³⁾
USB0_VSSA
USB0_VSSA33
PLL0 Ground
PLL1 Ground
SATA PHY Ground
Oscillator Ground
RTC Oscillator Ground
USB0 PHY Ground
USB0 PHY Ground
V
V
0
0
0
V
V
V
V
V
V_IH
High-level input voltage, Dual-voltage I/O, 3.3V⁽⁴⁾
2
High-level input voltage, Dual-voltage I/O, 1.8V ⁽⁴⁾
0.65*DVDD
High-level input voltage, RTC_XI
0.8*RTC_CVDD
High-level input voltage, OSCIN
0.8*CVDD
V_IL
Low-level input voltage, Dual-voltage I/O, 3.3V⁽⁴⁾
Low-level input voltage, Dual-voltage I/O, 1.8V ⁽⁴⁾
Low-level input voltage, RTC_XI
Low-level input voltage, OSCIN
V
V
V
V
0.8
V
0.35*DVDD
V
0.2*RTC_CVDD V
0.2*CVDD
V
(1) The RTC provides an option for isolating the RTC_CVDD from the CVDD to reduce current leakage when the RTC is powered
independently. If these power supplies are not isolated (CTRL.SPLITPOWER=0), RTC_CVDD must be equal to or greater than CVDD.
If these power supplies are isolated (CTRL.SPLITPOWER=1), RTC_CVDD may be lower than CVDD.
(2) DVDD18 must be powered even if all of the DVDD3318_x supplies are operated at 3.3V.
(3) When an external crystal is used oscillator (OSC_VSS, RTC_VSS) ground must be kept separate from other grounds and connected
directly to the crystal load capacitor ground. These pins are shorted to VSS on the device itself and should not be connected to VSS on
the circuit board. If a crystal is not used and the clock input is driven directly, then the oscillator VSS may be connected to board ground.
(4) These IO specifications apply to the dual-voltage IOs only and do not apply to the DDR2/mDDR or SATA interfaces. DDR2/mDDR IOs
are 1.8V IOs and adhere to the JESD79-2A standard.
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