Sign in

username:

password:



Not a member?

Search m68hc11



Search tips

Subscribe to m68hc11



m68hc11 by Keywords

27c256 | 4K81H | 68HC11A1 | 68HC11P1 | 68hc24 | 68HC711E9 | 68HC811 | 8255 | A2D | ADC | ADC12138 | Am85C30 | BRCLR | Buffalo | CMOS | EEPROM | EPROM | Ethernet | EVB | EVBU | HC11E1 | HC11E9 | HC711E9 | Horray | ImageCraft | IRQ | Keypad | LCD | MC68HC11D0FN | MC68HC11E1CFU3 | MC68HC11F1 | MC68HC711E9 | MC68HC711E9CFN2 | Microcore11 | Microstamp11 | Minikit | NVRAM | PSD | PSD8xx | PSD9xx | PT1000 | RS232 | RTS | RXD | SPI | SRAM | TXD | Watchdogs | XIRQ

Ads

Discussion Groups

See Also

DSPFPGAElectronics

Discussion Groups | | RE: 68HC811 [was 68HC24 PRU]

RE: 68HC811 [was 68HC24 PRU] - Oliver Betz - Nov 19 4:49:00 2003

Kerry Berland <> wrote:

[MC9S12E64CFU cheaper and better]

> more memory. It runs at 25 MHz bus speed, 12.5 times as fast as the
> example 68HC11 above. This single chip MC9S12 is far more powerful, and

much faster since it accesses program memory 16 bit wide and the
instructions take less cycles, and there are powerful adressing modes
etc...

No doubt, the S12 is much more fun.

> The number of us 68HC11 stragglers is continuing to ramp down, and I

ack.

> doubt any semi manufacturer could ever be tempted to come out with a new
> variation of the 68HC11....

one problem is existing hardware produced in low quantities. We have
some old stuff with 811E2 and it would be expensive to migrate it to
some HC12 derivative.

I understand why Motorola doesn't care about these applications, but
it's very bad for the users.

Another problem are applications using the external bus for
interfacing. Only the 68HC812A4 has a easy to use external memory
interface (no MPX, slow devices can be attached directly), but it's
no S12 (therefore slower and more expensive) and how long will it be
available ("PRODUCT MATURITY/SATURATION")?

Oliver
--
Oliver Betz, Muenchen




(You need to be a member of m68hc11 -- send a blank email to m68hc11-subscribe@yahoogroups.com )