New soldering products in stock: Solder paste and soldering wire

SLD-SAC305C4

We have new product category: Soldering components which include solder paste and soldering wires.

SAC305 solder paste is with the industry standard Sn96.5Ag3Cu0.5 composition. It’s ROHS compliant and has melting temperature 217C. The paste is Class 4 with 20-38um solder particles and is good for printing down to 0.4mm pich components. The packing is 0.5KG, we recommend to use fast shipment when order this paste as it must be kept at low temperature of 5-10C to prevent solder flux separation. The paste is good for 6 months from the date of manufacture.

Some applications are ROHS exempt and still use SnPb solder paste. This paste is with Sn63Pb37 composition and melting temperature 183C. The paste is Class 4 with 25-38um solder particles and is good for printing down to 0.4mm pich components. The packing is 0.5KG, we recommend to use fast shipment when order this paste as it must be kept at low temperature of 5-10C to prevent solder flux separation. You should not use this paste in ROHS compliant products as it contains Lead. The paste is good for 6 months from the date of manufacture.

For manual soldering we offer no clean SAC0307 ROHS compliant soldering wire with 2.2% Flux core and 0.6mm, 0.8mm and 1.0mm diameter. This alloy has melting temperature between 213 and 228C. Soldering iron temperature should be set between 245 and 375C depend on the components size.

For non ROHS compliant manual soldering Sn60Pb40 solder wire with 0.7mm diameter and 2% core Flux is available. This alloy has melting temperature 190C. Soldering iron temperature should be set between 240 and 350C depend on the components size.

 

Allwinner did it again – New quad core powerful chip pin to pin compatible with A10 and A20!

A20-OLinuXino-LIME2-1

A10 was one of most successful chips made by Allwinner, for couple of years it was top seller in tablets and other devices, A10 also was selected for our EUR 30 low cost Linux board the LIME.

Then Cortex-A8 single core become obsolete, then Allwinner released A20 – Dual Core more powerful and power efficient Cortex-A7 processor with pin to pin backward compatibility to A10.

This was incredible wise move for Allwinner as people could just re-use their old PCB designs without spending time to change PCBs.

A10/A20 had one nice feature – they have LCD, HDMI, SATA, Ethernet, in A20 Allwinner even add Gigabit Ethernet on top of the normal 100M Ethernet. All other new devices they release have either LCD either HDMI but not both and we miss SATA interface in all new Quad core devices they released.

Now they did it again – we got information from Allwinner that they are about to release Quad core more powerful processor which to be pin to pin compatible with A10/A20 we still don’t know the name, maybe A40 ? 🙂

Anyway this is very clever move as all existing designs which people have can be re-used. This means more modern SoC with more power but without forcing you to re-design your boards.

So expect Quad core LIME soon and I guess at same price range like other LIMEs!

A64 the first Cortex-A53 chip from Allwinner is now in production and cost only $5 in volume

A64

In January 2015 Allwinner announced that start working on their Cortex-A53 chip with name A64. Today we got notice that A64 now is in production and ready for ordering.

A64 target is tablets, it have quad core Cortex-A53 inside, with Mali400MP2 GPU, supports MIPI, RGB, LVDS, HDMI with 4K output. The video engine supports H.264 and H.265 encoding and decoding, Audio codec and 5Mpix camera sensor.

The connectivity is weak – no native Ethernet, but just USB-OTG and USB-Host, SPI, I2C, UARTs and LRADC.

The price is again smashing $5 for the A64 SoC probably this is the lowest cost Quad Core Cortex-A53 chip on the market.

A64 comes in small sexy 13×13 mm BGA443 package with 0.5 mm step which makes PCB escape a little bit expensive and minimum 6 Layer PCB design with quite demanding technology.

Allwinner works on 64-bit Quad core Cortex-A53 SoC named Allwinner A64 to be released for $5

Allwinner_A64

Just few months ago the only ARM 64-bit platform to test apps was iPhone6 and development boards with 64-bit processors cost $3000.

Now Allwinner announced that they will release entry level tablet Cortex-A53 Quad core processor for $5, this means there will be sub $100 development boards for ARM 64-bit as soon as Allwinner start selling these chips 🙂

Still no complete info about the features, Allwinner made practice to announce chips when they start working on them, not when they have them finished which is a bit annoying as these chips are released about year later (like the announcement for A80 one year ago).

No word for connectivity if this SOC will have SATA/Ethernet or will rely on USB3.0 as in Allwinner A80.

One more great news is that they finally decided to move to Linux 3.10 kernel and to start using device tree. This will make mainline Linux support much easier.

2015 will be interesting year 🙂 via cnx-software

Allwinner work on A83T 8-core Cortex-A7 SoC

A83T

Allwinner just posted on Twitter and made press release on their web that they work on new octa core processor named A83T.

So far there are no much info than it will be on 28 nm TSMC process and will be very power efficient. If we make analogy with A20 and A23/A33 the A83T will be lower cost feature cut version of A80.

The 8 cores will run up to 2Ghz! They name the architecture big.LITTLE but with 8 Cortex-A7 cores it should be more little.LITTLE 🙂

The question is how many applications will use all 8-cores? We all know the many-core is more sale buzzword than real performance improvement for most of the daily use cases.

At least in PC world 2 core at higher frequency will feel faster than 4 core at lower frequency for most of daily work and 4-core benefit will be seen just in some software products which really use the 4 cores.

As always software is way behind the hardware development.

Quad Core Cortex-A7 for $4

A33 Shipping Now-1

Allwinner just announced that in July they start the mass production of their A33 Quad core Cortex-A7 processor targeting low end tablets and media players.

With 1080p playback, MALI400MP2, integrated HIFI Audio codec, low power consumption the target is clear – handheld media player devices and tablets, so far nothing new.

The new is that A33 comes from the very beginning at shocking low price of only $4 i.e. $1 per core or about same price as ATmega328 in single quantity in Digikey 🙂

So either 8-bit processors are overpriced either the competition of these tablet SoC is so crazy that it drives the vendors to fall on the rock bottom from the start.

Allwinner used to keep the prices of the newly released chips high at the beginning then to decrease them at half after a year. A31 was something like $20 when they start selling it now is under $10.

Unfortunately A33 have no Ethernet connectivity, so not quite good choice for Linux computer.

So far A20 is Allwinner best solution with both SATA and Ethernet interfaces, even their newest and most powerful A80 missing SATA.

RK3188-SOM Quad Core Cortex-A9 running at 1.6GHz System On Module first prototypes work fine

Image

May is the month of our System On Modules 🙂

Image

Today our next SOM with RK3188 successfully was tested and OK.

This one is little beast comparing to A20 it have 4x Cortex-A9 vs 2x Cortex-A7 and runs on 1.6GHz vs. 1GHz so RK3188 makes total 16000 DMPIS vs. 3800 DMIPS for A20 (4.2 times faster) and vs. 965 DMIPS for RaspberryPi (16.6 times faster).

On the SOM there is:

  • RK3188 running at 1.6Ghz
  • 1GB DDR3 memory
  • Power Managment Unit IC
  • optional 4GB NAND Flash
  • micro SD-card to boot Llinux or Android
  • two buttons
  • three status LEDs
  • debug UART console
  • 5 GPIO connectors 2×20 pins 0.05″ step

RK3188-SOM and RK3188-SOM-4GB will be available for sale in June. The price of RK3188-SOM will be EUR 40 / 1000 pcs, the price of RK3188-SOM-4GB will be EUR 45 / 1000 pcs

RK3188-SOM-EVB is also available with Eagle CAD files, so any one can tailor board to his needs:

Image

The RK3188-SOM-EVB reference design have:

  • RK3188-SOM-4GB module
  • 4x USB Hosts
  • 1x USB OTG
  • HDMI output
  • 100MB Ethernet
  • RTC with backup battery
  • LCD connector compatible with A13-LCDxx A10-LCDxx, A20-LCDxx displays we have
  • 2x UEXT connectors
  • 2x 40 pin GPIO connectors

RK3188-SOM-EVB will be available for sale in June too and the price is EUR 85.00

Android and Debian Linux will be provided.

cpuinfo:

root@rk3188-som:~# cat /proc/cpuinfo 
Processor : ARMv7 Processor rev 0 (v7l)
processor : 0
BogoMIPS : 1631.46
processor : 1
BogoMIPS : 1631.46
processor : 2
BogoMIPS : 1631.46
processor : 3
BogoMIPS : 1631.46
Features : swp half thumb fastmult vfp edsp neon vfpv3 
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x3
CPU part : 0xc09
CPU revision : 0
Hardware : RK30board
Revision : 0000
Serial : 0000000000000000

and meminfo:

root@rk3188-som:~# cat /proc/meminfo 
MemTotal: 856652 kB
MemFree: 561600 kB
Buffers: 13652 kB
Cached: 200592 kB
SwapCached: 0 kB
Active: 121004 kB
Inactive: 137368 kB
Active(anon): 44260 kB
Inactive(anon): 456 kB
Active(file): 76744 kB
Inactive(file): 136912 kB
Unevictable: 0 kB
Mlocked: 0 kB
HighTotal: 155648 kB
HighFree: 8676 kB
LowTotal: 701004 kB
LowFree: 552924 kB
SwapTotal: 0 kB
SwapFree: 0 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 44168 kB
Mapped: 21492 kB
Shmem: 572 kB
Slab: 13864 kB
SReclaimable: 7552 kB
SUnreclaim: 6312 kB
KernelStack: 1592 kB
PageTables: 1696 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 428324 kB
Committed_AS: 451232 kB
VmallocTotal: 122880 kB
VmallocUsed: 42728 kB
VmallocChunk: 32636 kB

 

 

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