Overview
Information | 1Mbps +3.0V to +5.5V RS-232 Transceiver with Auto On-Line® Plus |
---|---|
Supply Voltage (Nom) (V) | 3.3, 5 |
No. of Tx | 1 |
No. of Rx | 1 |
Data Rate (kbps) | 1000 |
HBM ESD (kV) | 15 |
IEC 61000-4-2 Contact (±kV) | 8 |
Int. Charge Pump | ✔ |
No. of Ext Caps | 4 |
Nom Cap Value (µF) | 0.1 |
Shutdown | ✔ |
Internal Caps | |
TTL Tri-State | ✔ |
Auto On-Line | ✔ |
VL Pin | |
Temperature Range (°C) | 0 to 70, -40 to 85 |
Package | TSSOP-20, SSOP-20 |
The SP3224E/3225E are 2-driver/2-receiver devices and the SP3226E/SP3227E are 1- driver/1-receiver devices. All are ideal for computer peripherals, point-of-sale equipment, consumer and embedded applications. These devices use an internal high-efficiency, charge-pump power supply that requires only 0.1μF capacitors in 3.3V operation. This charge pump and MaxLinear’s driver architecture allow it to deliver compliant RS-232 performance from a single power supply ranging from +3.0V to +5.5V. At voltages between 2.7V and 3.0V the driver outputs are compliant with RS-562 and can interface to RS-232 over short cables.
The Auto On-line down state upon detecting activity and to enter a low power shutdown if idle. This power saving feature functions without system intervention or modifications to software or drivers.
- 1-driver, 1-receiver RS-232 transceiver
- Faster speed upgrade for SP3226
- Enhanced power savings compared to SP3220EU type devices
- High speed 1Mbps serial data rate
- Auto Online Plus™ automatically puts device into 1μA shutdown mode if Tx Inputs and Rx Inputs are idle for 30 seconds
- No control inputs or software driver changes required
- Meets true EIA/TIA-232-F requirements from a +3.0V to +5.5V power supply
- Regulated Charge Pump for stable outputs regardless of VCC variations
- Upgrade from SP3226E with 1Mbps high-speed serial
- ESD Specifications:
- ±15KV Human Body Model
- ±8KV IEC1000-4-2 Contact Discharge
Documentation & Design Tools
Type | Title | Version | Date | File Size |
---|---|---|---|---|
Data Sheets | SP3224E-SP3227E 3.0V to 5.5V RS-232 Transceivers with Auto On-Line® Plus | 1.0.1 | August 2011 | 4.2 MB |
Application Notes | RS-232 and RS-485 PCB Layout Application Note | R00 | December 2022 | 2.8 MB |
Product Brochures | Interface Brochure | November 2023 | 3.7 MB |
Parts & Purchasing
Part Number | Pkg Code | Min Temp | Max Temp | Status | Suggested Replacement | PDN |
---|---|---|---|---|---|---|
SP3227ECA-L | SSOP16 | 0 | 70 | OBS | SP3227EEY-L/TR | |
SP3227ECA-L/TR | SSOP16 | 0 | 70 | OBS | SP3227EEY-L/TR | |
SP3227ECY-L | TSSOP16 | 0 | 70 | OBS | SP3227EEY-L/TR | |
SP3227ECY-L/TR | TSSOP16 | 0 | 70 | OBS | SP3227EEY-L/TR | |
SP3227EEA-L | SSOP16 | -40 | 85 | OBS | SP3227EEY-L/TR | |
SP3227EEA-L/TR | SSOP16 | -40 | 85 | OBS | SP3227EEY-L/TR | |
SP3227EEY-L | TSSOP16 | -40 | 85 | OBS | SP3227EEY-L/TR | |
SP3227EEY-L/TR | TSSOP16 | -40 | 85 | OBS |
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.
Packaging
Notifications
FAQs & Support
Search our list of FAQs for answers to common technical questions.
For material content, environmental, quality and reliability questions review the Quality tab or visit our Quality page.
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Submit a Technical Support Question As a New Question
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) |
19200 | 50 |
9600 | 500 |
4800 | 1000 |
2400 | 3000 |
The Parts & Purchasing section of the product page shows the Status of all orderable part numbers for that product. Click Show obsolete parts, to see all EOL or OBS products.