Difference between revisions of "User:Corecode/Microboard"

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(Created page with "== µC comparison == === AVR === http://www.atmel.com/dyn/resources/prod_documents/doc7766.pdf AVR * EEPROM * can run at 5V * 12 ADC inputs * JTAG * analog comparator * AD...")
 
 
(14 intermediate revisions by the same user not shown)
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=== AVR ===
 
=== AVR ===
  
−
[[http://www.atmel.com/dyn/resources/prod_documents/doc7766.pdf AVR]]
+
[http://www.atmel.com/dyn/resources/prod_documents/doc7766.pdf AVR]
  
 
* EEPROM
 
* EEPROM
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=== ARM ===
 
=== ARM ===
  
−
[[http://www.nxp.com/documents/data_sheet/LPC1311_13_42_43.pdf ARM]]
+
* ARM Cortex-M3
−
 
+
 
* higher frequency/MIPS
 
* higher frequency/MIPS
 
* 32bit architecture
 
* 32bit architecture
 +
 +
 +
==== LPC1342/43 ====
 +
 +
[http://www.nxp.com/documents/data_sheet/LPC1311_13_42_43.pdf LPC1342/43]
 +
 
* only up to 3.6V
 
* only up to 3.6V
 
* 8 ADC inputs
 
* 8 ADC inputs
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** http://www.olimex.com/dev/lpc-p1343.html
 
** http://www.olimex.com/dev/lpc-p1343.html
  
 +
 +
==== NUC120 ====
 +
 +
[http://www.nuvoton.com/NuvotonMOSS/Community/ProductInfo.aspx?tp_GUID=5dbf7d7a-b6df-4fe1-91c9-063449500ce7 Homepage]
 +
 +
[http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/IndustrialIC/ARMMicrocontroller/ARMCortexTMM0/Documents/NUC120%20Datasheet%20EN.pdf NUC120 Datasheet]
 +
[http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/IndustrialIC/ARMMicrocontroller/ARMCortexTMM0/Documents/NuMicro%20NUC100%20Series%20Technical%20Reference%20Manual%20EN.pdf NUC120 Manual]
 +
 +
* ARM Cortex-M0
 +
* integrated LDO
 +
* less efficient than the LPC
 +
* very cheap; <= $2.50@1 at Arrow/Nu Horizons
 +
* external crystal required
 +
* slower clock (48MHz)
 +
* more flash, RAM
 +
 +
* Boards
 +
** http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=NUTINY-SDK-120-ND
 +
 +
[http://www.coocox.com:8080/coassistant_en/rap register assistant]
  
 
== Voltage regulators ==
 
== Voltage regulators ==
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====  MCP1725-ADJE/SN ====
 
====  MCP1725-ADJE/SN ====
  
−
* [[http://ww1.microchip.com/downloads/en/DeviceDoc/22026b.pdf]]
+
* [http://ww1.microchip.com/downloads/en/DeviceDoc/22026b.pdf MCP1725-ADJE/SN]
 
* $0.56@1, $0.39@100
 
* $0.56@1, $0.39@100
 
* Adjust with two resistors
 
* Adjust with two resistors
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==== SC195ULTRT ====
 
==== SC195ULTRT ====
  
−
* [[http://www.semtech.com/images/datasheet/sc195.pdf]]
+
* [http://www.semtech.com/images/datasheet/sc195.pdf SC195ULTRT]
 
* $0.96@1, $0.555@100
 
* $0.96@1, $0.555@100
 
* Adjust with logic input pins
 
* Adjust with logic input pins
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==== NCP1521BSNT1G ====
 
==== NCP1521BSNT1G ====
  
−
* [[http://www.onsemi.com/pub_link/Collateral/NCP1521B-D.PDF]]
+
* [http://www.onsemi.com/pub_link/Collateral/NCP1521B-D.PDF NCP1521BSNT1G]
 
* $0.92@1, $0.63@100
 
* $0.92@1, $0.63@100
 
* Adjust with two resistors
 
* Adjust with two resistors
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* output 0.9V - 3.3V
 
* output 0.9V - 3.3V
 
* required C: 4.7µF, 18pF, 10µF; L: 2.2µH (or 4.7µF and 4.7µH)
 
* required C: 4.7µF, 18pF, 10µF; L: 2.2µH (or 4.7µF and 4.7µH)
 +
 +
 +
== Crystals ==
 +
 +
* http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=644-1020-1-ND
 +
* http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=535-10202-1-ND
 +
 +
 +
== Ethernet ==
 +
 +
=== ENC28J60 ===
 +
 +
[http://ww1.microchip.com/downloads/en/DeviceDoc/39662c.pdf ENC28J60]
 +
 +
* 10baseT
 +
 +
 +
=== LAN8720A ===
 +
 +
[http://www.smsc.com/media/Downloads_Public/Data_Sheets/8720a.pdf LAN8720A]
 +
 +
* 10baseT/100baseTX

Latest revision as of 16:59, 31 July 2011

µC comparison

AVR

AVR

  • EEPROM
  • can run at 5V
  • 12 ADC inputs
  • JTAG
  • analog comparator
  • ADC reference voltage


ARM

  • ARM Cortex-M3
  • higher frequency/MIPS
  • 32bit architecture


LPC1342/43

LPC1342/43

  • only up to 3.6V
  • 8 ADC inputs
  • hardware divide
  • 400kS/s ADC
  • integrated HID and MSC device driver
  • integrated USB MSC boot loader (needs 12MHz crystal)
  • higher active current
  • lower deep-sleep current
  • requires external LDO


NUC120

Homepage

NUC120 Datasheet NUC120 Manual

  • ARM Cortex-M0
  • integrated LDO
  • less efficient than the LPC
  • very cheap; <= $2.50@1 at Arrow/Nu Horizons
  • external crystal required
  • slower clock (48MHz)
  • more flash, RAM

register assistant

Voltage regulators

Adjustable LDO

MCP1725-ADJE/SN

  • MCP1725-ADJE/SN
  • $0.56@1, $0.39@100
  • Adjust with two resistors
  • Extra parts: 2 R (+ 1 R for power good, 1 C for delayed power good)
  • dropout 210mV - 350mV
  • max input 6V
  • max current 500mA
  • output 2.3V - 5V, fixed version available at 1.8V, 2.5V, 3.3V
  • required C: 4.7µF, 1µF


Adjustable switching regulator

SC195ULTRT

  • SC195ULTRT
  • $0.96@1, $0.555@100
  • Adjust with logic input pins
  • Extra parts: 1 L
  • max input 6V
  • max current 500mA
  • output 0.8V - 3.3V
  • required C: 4.7µF, 10µF; L: 1µH
  • suggested layout given

NCP1521BSNT1G

  • NCP1521BSNT1G
  • $0.92@1, $0.63@100
  • Adjust with two resistors
  • Extra parts: 2 R, 1 L, 1 C
  • max input 5.5V
  • max current 600mA
  • output 0.9V - 3.3V
  • required C: 4.7µF, 18pF, 10µF; L: 2.2µH (or 4.7µF and 4.7µH)


Crystals


Ethernet

ENC28J60

ENC28J60

  • 10baseT


LAN8720A

LAN8720A

  • 10baseT/100baseTX
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