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From: linnix on 26 Jul 2010 20:26

> FYI:
> This data sheet states that this part come in 64 and 44 pin TQFP packages:http://www.freescale.com/files/32bit/doc/data_sheet/MCF51JM128.pdf

33 I/Os for TQFP44. We don't have enough room for TQFP64 (less than
1" width).

My spec: L(30) <= uC && uC <= P(48) && Min($) && Max(F)

F L P $ Wish
STM32F103C8T6A 64K 37 48 5.00 ~CAN ~LIN
ATSAM3S1AA-AU 64K 34 48 4.30 ~MMU
LPC1343FBD48,151 32K 40 48 3.20 Flash *= 2
MCF51JM64VLD 64K 33 44 3.00
PIC24FJ64GB004-I/PT 64K 33 44 3.00
NUC120LD3AN 128K 31 48 2 (?)

F: Flash, L: I/O Lines, P: Package pins, $: 1Ku price
From: iainjt on 27 Jul 2010 06:07
>
>OK, that will work.
>
> Flash I/O Cost Comment
>STM32F103C8T6A 64K 37 5.00 ~Needed: CAN LIN
>AT32UC3B164 64K 28 4.50 2 I/O short
>LPC1343FBD48,151 32K 40 3.20
>MCF51JM64VLD 64K 33 3.00
>PIC24FJ64GB004-I/PT 64K 33 3.00
>NUC120LD3AN 128K 31 2 (?)
>
Not sure where you are getting your pricing information from. The STM32
prices seem too high for 1k quantities.
Of course availability may be a problem for some of these parts...


Iain

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From: linnix on 27 Jul 2010 11:00
On Jul 27, 3:07 am, "iainjt" <iainjt(a)n_o_s_p_a_m.googlemail.com>
wrote:
> >OK, that will work.
>
> >                                   Flash   I/O   Cost     Comment
> >STM32F103C8T6A          64K   37    5.00     ~Needed: CAN LIN
> >AT32UC3B164                64K   28    4.50     2 I/O short
> >LPC1343FBD48,151        32K   40    3.20
> >MCF51JM64VLD             64K   33    3.00
> >PIC24FJ64GB004-I/PT     64K   33    3.00
> >NUC120LD3AN              128K   31    2 (?)
>
> Not sure where you are getting your pricing information from. The STM32
> prices seem too high for 1k quantities.

Yes, perhaps 4.40

My spec: L(30) <= uC && uC <= P(48) && Min($) && Max(F)

___________________ F L P $ Wish
STM32F103C8T6A_____ 64K 37 48 4.40 ~CAN ~LIN
ATSAM3S1AA-AU______ 64K 34 48 4.30 ~MMU
LPC1343FBD48,151___ 32K 40 48 3.20 Flash *= 2
MCF51JM64VLD_______ 64K 33 44 3.00
PIC24FJ64GB004-I/PT 64K 33 44 3.00
NUC120LD3AN________ 128K 31 48 2.??

F:Flash, L:I/O Lines, P:Package pins, $:1Ku price
From: DJ Delorie on 27 Jul 2010 13:02
The new RX-621 comes in 100 pin TQFP (only 16mm wide, 0.63 inch) and has
host and device USB (one port, configurable either way), 256k-512k
flash, and 64k-96k RAM. It's 32-bit, and runs at up to 100 MHz. Might
be overkill for your purposes, but it fits :-)

If you're really space constrained, there's an 85-pin TFLGA version
that's only 9mm square.

http://america.renesas.com/products/mpumcu/rx/rx600/rx621_62n/rx621_62n_root.jsp
From: linnix on 27 Jul 2010 14:16
On Jul 27, 10:02 am, DJ Delorie <d...(a)delorie.com> wrote:
> The new RX-621 comes in 100 pin TQFP (only 16mm wide, 0.63 inch) and has
> host and device USB (one port, configurable either way), 256k-512k
> flash, and 64k-96k RAM.  It's 32-bit, and runs at up to 100 MHz.  Might
> be overkill for your purposes, but it fits :-)
>
> If you're really space constrained, there's an 85-pin TFLGA version
> that's only 9mm square.
>
> http://america.renesas.com/products/mpumcu/rx/rx600/rx621_62n/rx621_6...

I can do 64 or 100 pins with more pcb space and/or finer design
rules. But there are plenty of 48 pins to work with for now. Bigger
chips tend to have more stuffs and more expensive anyway.
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