Overview
Design & Development
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Sample Code
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
Support
Support Communities
FAQs
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What are the differences between SH7040 series and SH7144 series?
SH7144 series is the inherited model of SH7040 series.The operating frequency is much more accelerated by improving from 28.7MHz to 50MHz.The main difference between SH7144 series and SH7040 series are as follows; •The supply voltage of SH7144 series is only 3.3V. (5V is not supported.)• SH7144 ...
Mar 25, 2009 -
SH7040 wait pin input: What if the setup and hold times are not met ?
In general, if the WAIT input changes between the setup and hold time, it cannot be guarranteed that a WAIT cycle will be inserted by the BSC. There is no danger of latchup in this case however.
Mar 18, 2009 -
Can several unused pins be pulled-up or pulled-down with one resistor?
It is NOT recommended that several unused pins collectively pull-up or pull-down with one resistor. The reason is that excessive current flows to the pins and output element may be destroyed when CPU can be runaway from some causes and the setting of input/output pins are ...
Sep 9, 2011