LH7A400_N NXP Semiconductors, LH7A400_N Datasheet - Page 32

• Manufacturer Part Number: LH7A400_N
• Description: The LH7A400, powered by an ARM922T, is a completeSystem-on-Chip with a high level of integration tosatisfy a wide range of requirements and expectations
• Manufacturer: NXP Semiconductors

LH7A400
CURRENT CONSUMPTION BY OPERATING MODE
parameters. To make this data more usable, the values
presented in Table 10 were derived under the condi-
tions presented here.
Maximum Specified Value
determined using these operating characteristics:
• All IP blocks either operating or enabled at maximum
• Core operating at maximum power configuration
• All voltages at maximum specified values
• Maximum specified ambient temperature (tAMB).
Typical
using a ‘typical’ application under ‘typical’ environmental
conditions and the following operating characteristics:
• LINUX operating system running from SDRAM
• UART and AC97 peripherals operating; all other
• LCD enabled with 320 × 240 × 16-bit color, 60 Hz
• I/O loads at nominal
• Cache enabled
• FCLK = 200 MHz or 250 MHz; HCLK = 100 MHz or
• All voltages at typical values
• Nominal case temperature (tAMB).
32
frequency and size configuration
peripherals as needed by the OS
refresh rate, data in SDRAM
125 MHz; PCLK = 50 MHz or 62.5 MHz
Current consumption can depend on a number of
The values specified in the MAXIMUM column were
The values in the TYPICAL column were determined
Rev. 01 — 16 July 2007
NXP Semiconductors
PERIPHERAL CURRENT CONSUMPTION
11 shows the typical current consumption for each of
the on-board peripheral blocks. The values were deter-
mined with the CPU clock running at 200 MHz, typical
conditions, and no I/O loads. This current is supplied by
the 1.8 VDDC power supply.
SYMBOL
AC97
UART (Each)
RTC
Timers (Each)
LCD (+I/O)
MMC
SCI
PWM (each)
BMI-SWI
BMI-SBus
SDRAM (+I/O)
USB (+PLL)
ACI
ICORE
ICORE
ICORE
In addition to the modal current consumption, Table
STANDBY MODE (TYPICAL CONDITIONS ONLY)
IIO
IIO
IIO
Table 11. Peripheral Current Consumption
Table 10. Current Consumption by Mode
HALT MODE (ALL PERIPHERALS DISABLED)
PERIPHERAL
Core Current
I/ O Current
Core Current
I/ O Current
Core Current
I/ O Current
PARAMETER
ACTIVE MODE
TYP. MAX. TYP.
110
15
24
40
TYPICAL
1.5 (14.8)
1
2
5.6 (3.3)
5.4 (1.0)
32-Bit System-on-Chip
0.005
Preliminary data sheet
< 0.1
1.3
1.0
0.1
0.6
1.0
1.0
0.8
23
135
45
39
2
250
125
50
4
UNITS
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
UNITS
mA
mA
mA
mA
µA
µA