The im232P is an RS-232 interface module. It converts TTL logic levels to RS-232 interface levels, and vice versa. It has an operating voltage of 3.0V to 5.5V, low power consumption, and is ESD protected up to 15kV. It enables 3.3V and 5V devices (e.g., a microcontroller) to communicate via the standard RS-232 protocol. It uses the Sipex SP3232EEN RS-232 transceiver chip.
This module makes the five pins (0V, TX, RX, RTS, CTS) available via a 5-pin, 3.5mm Terminal Block connector; a plug-in block with screw terminals is included. The connections are marked on the PCB.
RS232 Interface Add-on Board Features Meets True EIA/TIA-232-F Standards from a +3.0V to +5.5V Power Supply Interoperable with EIA/TIA-232 and Adheres to EIA/TIA-562 Down to a +2.7V Power Source Minimum 120kbps Data Rate under Load Regulated Charge Pump Yields Stable RS-232 Outputs Regardless of VCC Variations Enhanced ESD Specifications: • ±15kV Human Body Mode • ±15kV IEC1000-4-2 Air Discharge • ±8kV IEC1000-4-2 Contact Discharge High-quality 3.5mm terminal block connector consisting of a header and a plug Can be used in an iMod port (see below) Different pin header options available (see below) Module dimensions: 22.2 × 19.7 mm (0.875 × 0.775 inches) Operating Temperature: -40 to +85 °C
iMod Pin Configuration This is an iMod module with 0.7" pin column width, meaning it uses a standard pinout and configuration that allows it to be connected easily to any host board that has an iMod port. This includes the Modtronix SBC83I, SBC66UAL, and the various PT66E Prototyping Add-ons for other boards in the SBC66 series.
The pin pitch is 0.1" so you can use the module also on any typical prototyping board or breadboard.
For information about the iMod pinout, download this
iMod Overview. Find other iMod modules in our iMod Category.
Pin Header Options Use the Headers option at the bottom of this page to select what type of pin headers you want included with the module and whether you want them included loose or pre-soldered. The default option is for common rectangular pins included loose (the photo above shows them soldered). All pin header types use 3mm long pins. The header strips will be five pins for one side and two for the other, as seen in the photo.
Below the header option selector, you will see checkboxes for adding additional header strips (e.g. in case you want to populate all five pin pads on both sides) as well as socket strips that will mate with the Round Swiss pin header type. If you want to install the socket strips on your prototype so that you can plug in this module with Round Swiss pins, make sure to change and
Update the quantity of sockets to during checkout. (While a 5-pin socket is not available as a separate item, you can break off one pin from the 6-pin sockets to make them into 5-pin sockets.) 2
As this module only actually uses seven pins (5+2), you could save money by getting just one 8-pin strip and break it down, so those strips are listed below also.
Download im232P Schematic Download im232P-TBP Dimensions Diagram
Sipex/Exar SP3232EEN Page with datasheet and other documentation Available Options:
Rectangular Pins, loose Press-Fit Pins, loose (+US$0.50) Round Swiss Pins, loose (+US$0.50) Rectangular Pins, soldered (+US$0.60) Press-Fit Pins, soldered (+US$0.70) Round Swiss Pins, soldered (+US$0.70) Optional Recommended Products for this Item
Rectangular Pin Header, Male, 1x40 Single Row, 2.54mm Spacing + US$0.75 5-pin Press-Fit Header Strip, Breakaway Pins, 2.54mm Pitch + US$1.25 5-pin Swiss Header, Compact, Breakaway Pins, 2.54mm Pitch + US$0.50 6-pin Swiss Socket, Compact, Breakaway Pins, 2.54mm Pitch + US$0.66 8-pin Press-Fit Header Strip, Breakaway Pins, 2.54mm Pitch + US$1.95 8-pin Swiss Header, Compact, Breakaway Pins, 2.54mm Pitch + US$0.80 8-pin Swiss Socket, Compact, Breakaway Pins, 2.54mm Pitch + US$0.88