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參數(shù)資料
| 型號： | QLPXA262B1C300 |
| 廠商： | MARVELL SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 300 MHz, RISC PROCESSOR, PBGA294 |
| 封裝： | 13 X 13 MM, 1.4MM PITCH, PLASTIC, TPBGA-294 |
| 文件頁數(shù)： | 8/44頁 |
| 文件大?。?/td> | 1302K |
| 代理商： | QLPXA262B1C300 |
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Package Information
16
Intel PXA255 Processor Electrical, Mechanical, and Thermal Specification
TEXTAL
IA
32 kHz crystal output. No external caps are required.
Note [2]
L_DD[12]/
GPIO[70]
ICOCZ
LCD display data. (output) Transfers pixel information
from the LCD controller to the external LCD panel.
RTC clock. (output) Real time clock 1 Hz tick.
Pulled High -
Note[1]
Note [3]
L_DD[13]/
GPIO[71]
ICOCZ
LCD display data. (output) Transfers the pixel
information from the LCD controller to the external LCD
panel.
3.6864 MHz clock. (output) Output from 3.6864 MHz
oscillator.
Pulled High -
Note[1]
Note [3]
L_DD[14]/
GPIO[72]
ICOCZ
LCD display data. (output) Transfers pixel information
from the LCD controller to the external LCD panel.
32 kHz clock. (output) Output from the 32 kHz oscillator.
Pulled High -
Note[1]
Note [3]
48MHz/GP[7]
ICOCZ
48 MHz clock. (output) Peripheral clock output derived
from the PLL.
NOTE: This clock is only generated when the USB unit
clock enable is set.
Pulled High -
Note[1]
Note [3]
RTCCLK/
GP[10]
ICOCZ
Real time clock. (output) 1 Hz output derived from the
32 kHz or 3.6864 MHz output.
Pulled High -
Note[1]
Note [3]
3.6MHz/GP[11]
ICOCZ
3.6864 MHz clock. (output) Output from 3.6864 MHz
oscillator.
Pulled High -
Note[1]
Note [3]
32kHz/GP[12]
ICOCZ
32 kHz clock. (output) Output from the 32 kHz oscillator.
Pulled High -
Note[1]
Note [3]
Miscellaneous Pins
BOOT_SEL
[2:0]
IC
Boot select pins. (input) Indicates type of boot device.
Input
PWR_EN
OC
Power Enable for the power supply. (output) When
negated, it signals the power supply to remove power to
the core because the system is entering sleep mode.
Driven High
Driven low while
entering sleep
mode. Driven high
when sleep exit
sequence begins.
nBATT_FAULT
IC
Main Battery Fault. (input) Signals that main battery is
low or removed. Assertion causes PXA255 processor
processor to enter sleep mode or force an imprecise data
exception, which cannot be masked. PXA255 processor
will not recognize a wake-up event while this signal is
asserted. Minimum assertion time for nBATT_FAULT is 1
ms.
Input
nVDD_FAULT
IC
VDD Fault. (input) Signals that the main power source is
going out of regulation. nVDD_FAULT causes the
PXA255 processor to enter sleep mode or force an
imprecise data exception, which cannot be masked.
nVDD_FAULT is ignored after a wake-up event until the
power supply timer completes (approximately 10 ms).
Minimum assertion time for nVDD_FAULT is 1 ms.
Input
nRESET
IC
Hard reset. (input) Level -sensitive input used to start the
processor from a known address. Assertion terminates
the current instruction abnormally and causes a reset.
When nRESET is driven high, the processor starts
execution from address 0. nRESET must remain low until
the power supply is stable and the internal 3.6864 MHz
oscillator has stabilized.
Input
Input. Driving low
during sleep will
cause normal
reset sequence
and exit from sleep
mode.
Table 3. Pin and Signal Descriptions for the PXA255 Processor (Sheet 8 of 9)
Pin Name
Type
Signal Descriptions
Reset State
Sleep State
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相關代理商/技術參數(shù) |
參數(shù)描述 |
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| QLQGT3T131TA | 制造商:Panasonic Industrial Company 功能描述:COIL |
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| QLS08ZH-NT | 功能描述:DC/DC轉換器 RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
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| QLS12ZG-NT | 功能描述:DC/DC轉換器 5V/12A OUT NEG-LOGIC QUARTER BRICK RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
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