DescriptionThe SP3222EB/SP3232EB series is an RS-232 transceiver solution intended for portable or hand-held applications such as notebook or palmtop computers. The SP3222EB/SP3232EB series has a high-efficiency, charge-pump power supply that requires only 0.1μF capacitors in 3.3V operation. This charge pump allows the SP3222EB/SP3232EB series to deliver true RS-232 performance from a single power supply ranging from +3.0V to +5.5V. The SP3222EB/SP3232EB are 2-driver/2-receiver devices. This series is ideal for portable or hand-held applications such as notebook or palmtop computers. The ESD tolerance of the SP3222EB/SP3232EB devices are over +/-15kV for both Human Body Model and IEC1000- 4-2 Air discharge test methods. The SP3222EB device has a low-power shutdown mode where the devices' driver outputs and charge pumps are disabled. During shutdown, the supply current falls to less than 1μA.
For technical support or help choosing a product please email Exar’s Serial Technical Support group at: email@example.com.
- Meets true EIA/TIA-232-F Standards from a +3.0V to +5.5V power supply
- 250kbps Transmission Rate Under Load
- 1µA Low-Power Shutdown with Receivers Active
- Interoperable with RS-232 down to +2.7V power source
- Enhanced ESD Specifications:
- ±15kV Human Body Model
- ±15kV IEC1000-4-2 Air Discharge
- ±8kV IEC1000-4-2 Contact Discharge
Parts & Purchasing
|Part Number||Pkg Code||RoHS||Min Temp||Max Temp||Status||Buy Now||Order Samples|
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.
|08/10/2017||Fab transfer including re-design for new foundry process rules. Qualification of TSMC foundry for 0.25um HV20 process.||PCN 17-0205-01 TSMC-1033.pdf|
|07/11/2017||Product Discontinuation Notification||PDN_17-0626-02-1033.pdf|
|05/10/2017||Qualification of alternate assembly subcon, JCET.||PCN 17-0208-03 JCET-1033.pdf|
|02/23/2017||Qualification of alternate assembly subcon, ANST, China.||PCN 16-1149-02-01 ANST-1033.pdf|
|02/15/2017||Qualification of alternate assembly subcon, ANST.||PCN 16-1149-02 ANST-1033.pdf|
|02/14/2017||Qualification of alternate assembly subcon, GREATEK, Taiwan.||PCN 17-0102-01 Greatek-1033.pdf|
|08/11/2016||Qualification of alternate assembly subcon, JCET.||PCN 16-0521-05 JCET-1033.pdf|
|07/26/2016||Product discontinuation notification. Discontinued.||PDN 16-0626-01-1033.pdf|
|02/26/2014||Qualification of an alternate qualified 18L WSOIC production site, Greatek, Taiwan, in addition to the current production site, Cirtek, Philippines. Alternate assembly site.||PCN_13-1040-03-1033.pdf|
|09/09/2013||Addition of an alternate qualified assembly supplier, Carsem (Malaysia) for 20 and 28 lead SSOP package using copper wire bonding. Material Change||PCN_13-0521-01-1033.pdf|
|07/26/2013||5-inch wafer with PSG 10KÅ passivation Material and other (foundry 6 inch wafer qualification) changes.||PCN_13-0507-02-1033.pdf|
|05/23/2013||Qualified copper wire bonding assembly in addition to currently qualified gold wire bonding assembly in Carsem. Material change.||PCN_13-0125-02-1033.pdf|
|08/24/2012||Material Change - Bond wire is changed from gold to copper. To update our manufacturing to be compatible with current industry standards and maintain capacity.||PCN_12-0712-05-1033.pdf|
|06/06/2011||Material Change: Convert all products in 20ld TSSOP package to Green (halogen-free) material using the same Bill of Material as 16ld TSSOP. Migrating to green environment and material standardization.||PCN_11-0516-01-1033.pdf|
|07/15/2010||Change in packing quantity per reel and also carrier tape width/pitch. Standardization||PCN_10-0706-02-1033.pdf|
|05/19/2009||Notice of Obsolescence Discontinued by Exar Corporation due to low market demand||PDN 081126-01-1033.pdf|
|11/26/2008||Notice of Obsolescence Package Discontinuation Notice||PDN_081126-01-1033.pdf|
|11/07/2008||1. Assembly of 18ld WSOIC will be moved from Unisem-Malaysia to MMS in Shanghai, China which is an alternate qualified supplier. 2. Mold compound is changed from Sumitomo non green 6730B-L to Sumitomo G600. Unisem Corporation is ending the life of this package lead count in their assembly offerings.||PCN_08-1107-01-1033.pdf|
|02/28/2007||Product Obsolescence Letter and Discontinuation Notification. Discontinued.||POL_022807-1033.pdf|
|06/26/2006||Change in ABSOLUTE MAXIMUM RATINGS of Input Voltages from: “-0.3V to +6.0V” to “-0.3V to Vcc + 0.3V” for the following pins (as appropriate to the specific product): TxIN, /EN,/ONLINE, /SHUTDOWN, EN SHDN, /SHDN The datasheets originally mis-specified the absolute maximum ratings of the above listed pins.||PCN 06-0508-01 for RS232 products-1033.pdf|
Frequently Asked Questions
For RS-232 it is 50 feet (15 meters), or the cable length equal to a capacitance of 2500 pF, at a maximum transmission rate of 19.2kbps. When we reduce the baud rate, it allows for longer cable length. For Example:
Baud Rate (bps)
Maximum RS-232 Cable Length (ft)
In this example, we looked for XRA1201. When you hover over it, it will turn grey and you can click anywhere in the grey box. This brings you to the product page. For example:
Click on Parts & Purchasing, highlighted in yellow above. The screen changes to:
Notice the status column and the “Show obsolete parts” link:
A legend tells you the definition of the different statuses. Click on the “Show obsolete parts” link to see EOL or OBS part numbers along with the Active part numbers:
Another method to find out if a part is OBS or EOL is to click on SUPPORT:
And then Product Change Notifications
Type the part into the search, and click on one of the part numbers from the drop down menu. Then you can look for the Product Discontinuation Notice, which generally is at the top of the list, for example:
If you see this, it tells you that this particular orderable part has been discontinued and when the last order date is, or was. If you click on the file, then you can view the notice we sent about this if you purchased the part in the recent past. It may also advise of a replacement part. When an orderable part first becomes discontinued, Product Discontinuation Notices are sent are sent to those who have purchased the parts in the recent past, if purchased directly, with a dated opportunity to place a last order.