IMX51A 데이터 시트보기 (PDF) - Freescale Semiconductor
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IMX51A Datasheet PDF : 172 Pages
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Electrical Characteristics
Table 16. i.MX51 Stop Mode Current and Power Consumption (continued)
Mode
Condition
Stop Mode
• External reference clocks
enabled
• No power gating for ARM and
processing units
• HPM voltage
VDDGP = 1.0 V, VCC = 1.225 V, VDDA = 1.2 V
All PLLs off, all CCM-generated clocks off
CKIL input on with 32 kHz signal present
All modules disabled
USBPHY PLL off
External (MHz) crystal and on-chip oscillator
powered and generating reference clock
No external resistive loads that cause current flow
TA = 25°C
Supply
VDDGP
VCC
VDDA
NVCC_OSC
Total
Nominal
50
2
1.15
1.5
63
Unit
mA
mW
4.1.2 USB PHY Current Consumption
Table 17 shows the USB PHY current consumption.
Table 17. USB PHY Current Consumption
Parameter
Analog Supply
VDDA33 (3.3 V)
Analog Supply
NVCC_USBPHY (2.5 V)
Digital Supply
VCC (1.2 V)
VDDA33 + NVCC_USBPHY +VCC
Conditions
RX
Full Speed
TX
RX
High Speed
TX
RX
Full Speed
TX
RX
High Speed
TX
RX
Full Speed
TX
RX
High Speed
TX
Suspend
Typical @ 25 °C
5.5
7
5
5
6.5
6.5
12
21
6
6
6
6
50
Max
Unit
6
8
mA
6
6
7
7
mA
13
22
7
7
mA
7
7
100
μA
4.2 Supply Power-Up/Power-Down Requirements and Restrictions
The system design must comply with the power-up and power-down sequence guidelines as described in
this section to guarantee reliable operation of the device. Any deviation from these sequences may result
in the following situations:
• Excessive current during power-up phase
• Prevention of the device from booting
• Irreversible damage to the i.MX51A processor (worst-case scenario)
i.MX51A Automotive and Infotainment Applications Processors, Rev. 2
Freescale Semiconductor
21
Preliminary—Subject to Change Without Notice
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