MC9328MX21S_08 Datasheet, PDF (13/88 Pages) Freescale Semiconductor, Inc – i.MX family of microprocessors 266 MHz

Specifications
3.2 Recommended Operating Range
Table 4 provides the recommended operating ranges. The device has multiple pairs of VDD and VSS
power supply and return pins. QVDD, QVDDx, 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 VDDA pins are supply voltages to the analog pads, it is recommended to isolate and noise-filter
the VDDA pins from other VDD pins.
For more information about I/O pads grouping per VDD, please refer to Table 4.
Table 4. 266 MHz Recommended Operating Range
Rating
Operating temperature range
Part No. Suffix
VK/VM
CVK/CVM
I/O supply voltage NVDD 1–6
Internal supply voltage (Core = 266 MHz)
Analog supply voltage
Symbol
T_A
T_A
NVDD_x
QVDD, QVDDx
VDDA
Minimum
0
- 40
1.70
1.45
1.70
Maximum
70
85
3.30
1.65
3.30
Unit
°C
°C
V
V
V
3.3 DC Electrical Characteristics
Table 5 contains the DC characteristics of the i.MX21S.
Table 5. DC Characteristics
Parameter
High-level input voltage
Low-level Input voltage
High-level output voltage
Low-level output voltage
High-level output current, slow I/O
High-level output current, fast I/O
Low-level output current, slow I/O
Symbol
V_IH
V_IL
V_OH
V_OL
I_{OH_S}
I_{OH_F}
I_{OL_S}
Test Conditions
–
–
I_OH = spec’ed Drive
I_OL = spec’ed Drive
V_out=0.8NVDD
DSCR² = 000
DSCR = 001
DSCR = 011
DSCR = 111
V_out=0.8NVDD1
DSCR² = 000
DSCR = 001
DSCR = 011
DSCR = 111
V_out=0.2NVDD
DSCR² = 000
DSCR = 001
DSCR = 011
DSCR = 111
Min
0.7NVDD
O
0.8NVDD
–
-2
-4
-8
-12
-3.5
-4.5
-5.5
-6.5
2
4
8
12
Typ¹
–
–
–
–
–
–
–
Max
NVDD
0.3NVDD
–
0.2NVDD
–
Units
V
V
mA
–
mA
–
mA
MC9328MX21S Technical Data, Rev. 1.3
Freescale Semiconductor
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