參數(shù)資料
型號(hào)： 20-101-0709
廠商： Rabbit Semiconductor
文件頁數(shù)： 71/90頁
文件大?。?/td> 0K
描述： INTERFACE GRAPHIC DISPLAY OP6700
標(biāo)準(zhǔn)包裝： 1
系列： SBC
模塊/板類型： 單板計(jì)算機(jī)模塊
適用于相關(guān)產(chǎn)品： OP6700
其它名稱： 20-101-709
20-101-709-ND
User’s Manual
69
Figure C-3 shows the battery-backup circuitry on the Intellicom board.
Figure C-3. Intellicom Battery-Backup Circuit
The battery-backup circuit serves three purposes:
It reduces the battery voltage to the SRAM and to the real-time clock, thereby limiting
the current consumed by the real-time clock and lengthening the battery life.
It ensures that current can flow only out of the battery to prevent charging the battery.
A voltage, VOSC, is supplied to U13, which keeps the 32.768 kHz oscillator working
when the voltage begins to drop.
VRAM and Vcc are nearly equal (<100 mV, typically 10 mV) when power is supplied to
the Intellicom. VRAM is also available on pin 34 of header J2 to facilitate battery backup
of the external circuit. Note that the recommended minimum resistive load at VRAM is
100 k
, and new battery life calculations should be done to take external loading into
account.
C.2.2 Power to VRAM Switch
The VRAM switch, shown in Figure C-4, allows the battery backup to provide power
when the external power goes off. The switch provides an isolation between Vcc and the
battery when Vcc goes low. This prevents the Vcc line from draining the battery.
R36
8.2 kW
VRAM
VBAT-EXT
External Battery
R37
47 kW
2 kW
R35
R39
22 kW
VBAT
Vcc
22 kW
R38
22 kW
U13
pin 5
R34
D4
D2
D3
T
thermistor
C16
1 nF
C15
1 nF
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參數(shù)描述
20-101-0727 功能描述:模塊化系統(tǒng) - SOM BL2010 W/ 512K FLASH RoHS:否 制造商:Digi International 外觀尺寸:ConnectCore 9P 處理器類型:ARM926EJ-S 頻率:150 MHz 存儲(chǔ)容量:8 MB, 16 MB 存儲(chǔ)類型:NOR Flash, SDRAM 接口類型:I2C, SPI, UART 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in
20-101-0732 功能描述:單板計(jì)算機(jī) OP7100 W/512K SRAM RoHS:否 制造商:Ampro By ADLINK 外觀尺寸:EPIC 處理器類型:Intel Atom D510 頻率:1.66 GHz 存儲(chǔ)容量:2 GB (max) 存儲(chǔ)類型:DDR2, L2 Cache 接口類型:Ethernet, PS/2, SATA, Serial, USB 工作電源電壓:5 V, 12 V 功耗:13 W 最大工作溫度:+ 70 C 尺寸:165.1 mm x 114.3 mm
20-101-0737 制造商:Digi International 功能描述:SMARTBLOCK OEM W/RTC - MOQ: 50 - Bulk 制造商:Digi International Inc 功能描述:SMARTBLOCK OEM W/RTC MOQ: 50 制造商:Rabbit Semiconductor 功能描述:Smartblock OEM w/RTC
20-101-0738 功能描述:單板計(jì)算機(jī) SR9150 Eth 512K SRAM RoHS:否 制造商:Ampro By ADLINK 外觀尺寸:EPIC 處理器類型:Intel Atom D510 頻率:1.66 GHz 存儲(chǔ)容量:2 GB (max) 存儲(chǔ)類型:DDR2, L2 Cache 接口類型:Ethernet, PS/2, SATA, Serial, USB 工作電源電壓:5 V, 12 V 功耗:13 W 最大工作溫度:+ 70 C 尺寸:165.1 mm x 114.3 mm
20-101-0739 制造商:Digi International 功能描述:BL1700 16IN/16OUT 512K SRAM 256K FLASH - MOQ: 25 - Boxed Product (Development Kits) 制造商:Digi International Inc 功能描述:ETH CTLR BL1700 16I/O 256K FLASH 制造商:Rabbit Semiconductor 功能描述:BL1700 512K SRAM 16 In/Out 256K Flash
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