|   | The UMD Model 620 PXA Embedded Microcontroller is a low cost programmable controller specifically designed for embedded applications. It is particularly suited to: 
 The UMD Model 620 PXA Controller includes CPU Module with flash memory and I/O Expansion Board which includes Serial, Digital I/O and expansion bus capability, assembled into one module. The Controller is based on UMD's Protolink Extended Architecture (PXA) which is a product development platform, that provides flexible and rapid solution development. ProtoLink is an extremely versatile range of electronic modules and interfaces that can be configured to meet a large range of microelectronic applications, eg. keyboards, terminal devices, interfaces, protocol converters, turnstile controllers, ticketing and entry systems, data logging, industrial controllers, etc. Features: 
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| Model | M620A | M621A | M622A | 
|---|---|---|---|
| Physical Characteristics | |||
| Width | 132 mm | 132 mm | 140 mm | 
| Depth | 72 mm | 114 mm | 114 mm | 
| Height | 52 mm | 30 mm | 36 mm | 
| Weight | 420g | 420g | 420g | 
| Environmental Characteristics | |||
| Operating Temperature | 0ēC to 45ēC | ||
| Storage Temperature | -10ēC to 55ēC | ||
| Relative Humidity | 5% to 95% (non-condensing) | ||
| Hardware | |||
| Microprocessor | Hitachi H8300 Processor, 19 MHz | ||
| RAM Memory | 64 MB? | ||
| Flash ROM | 64MB?; includes application storage? | ||
| Power | |||
| Input Voltage Range | 9 to 24V/DC | ||
| Current Consumption | 60mA? | ||
| Communications | |||
| Serial | 4x RS232 or 2x RS232 and 1x RS485 (One RS232 Port is the DB9 Programming Port, the others are Screw Terminals) | ||
| Digital Inputs | 2x Common Ground (Optically Isolated) 2x Common Supply (Optically Isolated) | ||
| Digital Outputs | 8x PNP or NPN | ||
UMD Model 620 Series Configuration Table
| M620A M621A M622A | 
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 | Open Frame Housing (All Ports to one side) Open frame Housing (Serial Ports one side, Digital Opposite) Plastic Box (Serial Ports one side, Digital Opposite) | 
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 | Serial Port Option | |||||
| 40 21 | 
 | 4x RS232 2x RS232, 1x RS485 | ||||
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 | Digital Optputs | |||||
| P N | 
 | PNP Output NPN Output | ||||
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 | General Hardware Option | |||||
| 00 XX | 
 | Standard Custom | ||||
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 | Firmware | |||||
| 00 XX | 
 | Undefined (unloaded) Custom | ||||
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| M62xA | 
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| Part Number | Model Number | Description | RRP Inc GST | T % | 
|---|---|---|---|---|
| [A] M620 Series | ||||
| Contact UMD Sales for Pricing and Availability | ||||