DLP-USB232M-G DLP Design Inc, DLP-USB232M-G Datasheet - Page 6

• Manufacturer Part Number: DLP-USB232M-G
• Description: MODULE USB-TO-TTL SRL UART CONV
• Manufacturer: DLP Design Inc
• Series: DLP-USB232Mr

Specifications of DLP-USB232M-G

• Convert From (adapter End): USB
• Convert To (adapter End): DB9 Female
• Features: Integrated 6MHz-48MHz clock multiplier PLL
• Interface Type: USB
• Data Bus Width: 8 bit
• Product: Interface Modules
• For Use With/related Products: Windows® 98 or higher, Mac OS 8.5 or higher
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 813-1018

DEVICE CONFIGURATION EXAMPLES
USB Bus Powered and Self Powered Configuration
Figure 1
e) No device can draw more that 500mA from the USB Bus.
f) The power descriptor in the EEPROM should be programmed to a value of zero.
Figure 2 illustrates a typical USB self powered configuration. A USB Self Powered device gets its power from its own
Power Supply and does not draw current from the USB bus.
Basic rules for USB Self power devices are as follows –
a) A Self-Powered device should not force current down the USB bus when the USB Host or Hub Controller is
powered down.
b) A Self Powered Device can take as much current as it likes during normal operation and USB suspend as it has its
own Power Supply.
c) A Self Powered Device can be used with any USB Host and both Bus and Self Powered USB Hubs.
Copyright © DLP Design 2002
Figure 2
Figure 1 illustrates a typical USB bus powered configuration. A
USB Bus Powered device gets its power from the USB bus. Basic
rules for USB Bus power devices are as follows –
a) On plug-in, the device must draw no more than 100mA
b) On USB Suspend the device must draw no more than 500uA.
c) A Bus Powered High Power Device (one that draws more than
100mA) should use the SLEEP# pin to keep the current below
100mA on plug-in and 500uA on USB suspend.
d) A device that consumes more than 100mA can not be plugged
into a USB Bus Powered Hub
DLP-USB232M User’s Manual
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