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<strong>Delcom</strong> <strong>Products</strong> <strong>Inc</strong>.<br />
USBIOHID Datasheet<br />
Revision 8 – 04/12/2010<br />
7 Specifications<br />
For more specifications all so see the Cypress data sheet CY7C637XX.<br />
7.1 Absolute Maximum Ratings<br />
Storage Temperature -65C to +150C<br />
Operating Temperature -0C to +70C<br />
Vss relative to Vcc<br />
-0.5V to +7.0V<br />
DC Input Voltage<br />
-0.5V to Vcc+0.5V<br />
DC voltage on HiZ pins<br />
-0.5V to Vcc+0.5V<br />
Max Current Summed on Port1 pins 60ma<br />
Max Current Summed on Port0 pins 10ma<br />
Power Dissipation<br />
300mW<br />
Static Discharge Voltage >2000V<br />
Latch Up Current<br />
200mA<br />
7.2 Electrical Characteristics<br />
VCC Operating Current<br />
20mA<br />
VCC Limits 4 to 5.25V<br />
Max GPIO Sink Current<br />
70mA*<br />
Max GPIO Source Current<br />
30mA*<br />
Pull Up Resistor<br />
24Kohms<br />
* Cumulative across all ports.<br />
7.3 Communications<br />
Packet Bandwidth*<br />
100 Packet/sec<br />
* The USB 1.1 Low Speed specification defines the maximum packet period to be<br />
10ms. Therefore you can send a read or write command every 10ms or 100 packets<br />
per second. Depending on the command you can send 8 or 16 byte per packet.<br />
USBIOHID.pdf Copyright © DELCOM PRODUCTS INC. 2009. All Rights Reserved. Page 26 of 36<br />
<strong>Delcom</strong> <strong>Products</strong> <strong>Inc</strong>. 200 William St STE302 – Port Chester NY 10573 USA (914)934-5170 www.delcomproducts.com
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