MCIMX285AJM4A Freescale Semiconductor, MCIMX285AJM4A Datasheet - Page 13

• Manufacturer Part Number: MCIMX285AJM4A
• Description: Processors - Application Specialized CATSKILLS REV 1.1
• Manufacturer: Freescale Semiconductor
• Type: Multimedia Applicationsr

Specifications of MCIMX285AJM4A

• Product Category: Processors - Application Specialized
• Core: ARM926EJ-S
• Processor Series: i.MX28
• Data Bus Width: 32 bit
• Data Ram Size: 128 KB
• Operating Supply Voltage: 1.35 V to 5.25 V
• Maximum Operating Temperature: + 85 C
• Memory Type: L1 Cache, ROM, SRAM

3
Table 10
Table 11
PSWITCH button circuitry.
1
2
Table 12
Freescale Semiconductor
Low Resolution ADC Input Impedance (CH0 - CH5)
PSWITCH LOW LEVEL
PSWITCH MID LEVEL & STARTUP
PSWITCH HIGH LEVEL
Maximum Ambient Operating Temperature may be limited due to on-chip power dissipation. T
T
Θ
P
PVDD4P2 = VDD4P2 On-Chip Power Dissipation = (VDD5V - VDD4P2) x IDD4P2
PBatteryCharger = Battery Charger On-Chip Power Dissipation = (VDD5V - BATT) x ICHARGE
PDCDC = DC-DC Converter On-Chip Power Dissipation = (BATT x DCDC Input Current) x (1 - efficiency)
PLinearRegulators = Linear Regulator On-Chip Power Dissipation = (VDD5V - VDDIO) x (IDDIO + IDDA + IDDD + IDD1P5) +
PInternal = Internal Digital On-Chip Power Dissipation = ~VDDD x IDDD
A MID LEVEL PSWITCH state can be generated by connecting the VDDXTAL output of the SoC to PSWITCH through a
switch.
PSWITCH acts like a high impedance input (>300 kΩ) when the voltage applied to it is less than 1.5V. However, above 1.5V
it becomes lower impedance. To simplify design, it is recommended that a 10 kΩ resistor to VDDIO be applied to PSWITCH
to set the HIGH LEVEL state (the PSWITCH input can tolerate voltages greater than 2.45 V as long as there is a 10 kΩ resistor
in series to limit the current).
J
D
JA
= Maximum Junction Temperature
= Total On-chip Power Dissipation =PVDD4P2 + PBatteryCharger + PDCDC + PLinearRegulators + PInternal. Depending
on the application, some of these power dissipation terms may not apply.
(VDDIO - VDDA) x (IDDA + IDDD) + (VDDA - VDDD) x IDDD + (VDDA - VDD1P5) x IDD1P5
= Package Thermal Resistance. See
1
VDDD
VDDIO33
VDDA
VDDIO_EMI
VDDIO18
provides the recommended analog operating conditions.
shows the PSWITCH input characteristics. See the reference schematics for the recommended
shows a test case example for Run IDD.
CPUCLK = 300 MHz, AHBCLK = 150 MHz
Power Rail
Parameter
2
i.MX28 Applications Processors for Automotive Products, Rev. 3
Parameter
Table 10. Recommended Analog Operating Conditions
1
Table 11. PSWITCH Input Characteristics
Conditions
Section 3.2, “Thermal
Table 12.
1.57 V
3.62 V
2.12 V
1.92 V
1.92 V
Run IDD Test Case
HW_PWR_STS_PSWITCH
Characteristics.”
Min
—
—
—
—
—
0x01
0x11
0x00
Min
1
>1
,
2
1.11
1.01
0.61
Typ
150
31
(1.1 * VDDXTAL) +
Typ
—
Max
1.17
1.08
2.97
188
34
0.00
0.65
0.58
A (MAX)
Min
Electrical Characteristics
≤ T
Max
J
—
Unit
- (Θ
mA
mA
mA
mA
μA
Max
0.30
1.50
2.45
JA
x P
D
) where:
Unit
MΩ
Unit
V
V
V
13