MC9328MX1 Datasheet, PDF (15/96 Pages) Freescale Semiconductor, Inc – i.MX Integrated Portable System Processor

Specifications
3.2 Recommended Operating Range
Table 5 provides the recommended operating ranges for the supply voltages. The MC9328MX1 processor has
multiple pairs of VDD and VSS power supply and return pins. QVDD and QVSS pins are used for internal logic.
All other VDD and VSS pins are for the I/O pads voltage supply, and each pair of VDD and VSS provides power
to the enclosed I/O pads. This design allows different peripheral supply voltage levels in a system.
Because AVDD pins are supply voltages to the analog pads, it is recommended to isolate and noise-filter the
AVDD pins from other VDD pins.
BTRFVDD is the supply voltage for the Bluetooth interface signals. It is quite sensitive to the data transmit/receive
accuracy. Please refer to Bluetooth RF spec for special handling. If Bluetooth is not used in the system, these
Bluetooth pins can be used as general purpose I/O pins and BTRFVDD can be used as other NVDD pins.
For more information about I/O pads grouping per VDD, please refer to Table 3 on page 6.
Table 5. Recommended Operating Range ¹
Symbol
Rating
Minimum Maximum Unit
NVDD I/O supply voltage
MSHC, SPI, BTA, USBd, LCD and
2.70
CSI are only 3V interface
NVDD I/O supply voltage
1.70
QVDD Internal supply voltage (Core =
1.70
150 MHz)
QVDD Internal supply voltage (Core =
1.80
200 MHz)
AVDD Analog supply voltage
1.70
BTRFVD Bluetooth I/O voltage (Bluetooth)
1.70
D₁
BTRFVD Bluetooth I/O voltage (Non Bluetooth
1.70
D₂
applications)
1. Voltages referenced to Vss and BTRFGND, which are both tied to the same potential.
3.30
V
3.30
V
1.90
V
2.00
V
3.30
V
3.10
V
3.30
V
3.3 Power Sequence Requirements
For required power-up and power-down sequencing, please refer to the "Power-Up Sequence" section of
application note AN2537 on the i.MX website page.
3.4 DC Electrical Characteristics
Table 6 contains both maximum and minimum DC characteristics of the MC9328MX1.
MC9328MX1 Advance Information, Rev. 4
Freescale Semiconductor
15