MAX251CSD+T
RS232 Transceiver Isolated, 2 Drivers, 4.5V to 5.5V Supply, NSOIC-14
| Manufacturer | ANALOG DEVICES |
|---|---|
| Manufacturer Part No | MAX251CSD+TCopy |
| Manufacturer Standard Lead Time | 12 weeks |
| Order Code | Re-Reel2511979RL Cut Tape2511979 |
| Your Part Number | |
| Technical Datasheet |
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| Packaging Type | Quantity | Unit Price: | Total |
|---|---|---|---|
| Cut Tape | 1 | $20.770 | $20.77 |
| Quantity | Price (Incl GST) |
|---|---|
| 1+ | $20.770 ($22.847) |
| 10+ | $16.380 ($18.018) |
| 25+ | $15.290 ($16.819) |
| 100+ | $14.080 ($15.488) |
| 250+ | $14.060 ($15.466) |
| 500+ | $13.780 ($15.158) |
Product Information
| Manufacturer | ANALOG DEVICES |
|---|---|
| Manufacturer Part No | MAX251CSD+TCopy |
| Manufacturer Standard Lead Time | 12 weeks |
| Order Code | Re-Reel2511979RL Cut Tape2511979 |
| Technical Datasheet | |
| IC Type | RS232 Transceiver |
| No. of Receivers | 2Receivers |
| No. of Transmitters | 2 |
| Communication Mode | - |
| Data Rate Max | 116Kbps |
| Supply Voltage Min | 4.5V |
| Supply Voltage Max | 5.5V |
| IC Case / Package | NSOIC |
| No. of Pins | 14Pins |
| No. of Nodes | - |
| ESD Protection | - |
| Fail Safe | - |
| Operating Temperature Min | 0°C |
| Operating Temperature Max | 70°C |
| Product Range | - |
| Qualification | - |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (04-Feb-2026) |
Product Overview
The MAX251CSD+T is a +5V powered, isolated, RS232 driver/receiver in 14 pin NSOIC package. It is a chip set form the heart of a complete electronically isolated RS232 dual transmitter/receiver. By combining many functions on two chips, the cost and complexity required for an isolated digital interface is greatly reduced. Four low cost optocouplers, four capacitors, a diode and a small pot-core type transformer are all that are required to complete a 19.2k baud transceiver. Faster data rates are possible by using high-speed optocouplers. In addition to the driving and receiving circuitry for the optocouplers, the chip set includes a push-pull transformer driver to supply power to the interface's isolated side. This device is used in bridge ground differentials and data links to analogue circuits.
- Supply voltage range is 4.5V to 5.5V
- Operating temperature range from 0°C to 70°C
- Isolated data interface
- Positive supply current is 2.5mA
- Shutdown power is 5µW
- 2 transmitters and 2 receivers
- 3-state enable time tEN is 3.5µS, 3-state disable time is 1µS
- Maximum threshold voltage is 2V
Applications
Communications & Networking, Industrial
Warnings
ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party
Notes
Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.
Technical Specifications
| IC Type | RS232 Transceiver |
|---|---|
| No. of Transmitters | 2 |
| Data Rate Max | 116Kbps |
| Supply Voltage Max | 5.5V |
| No. of Pins | 14Pins |
| ESD Protection | - |
| Operating Temperature Min | 0°C |
| Product Range | - |
| MSL | MSL 1 - Unlimited |
| No. of Receivers | 2Receivers |
|---|---|
| Communication Mode | - |
| Supply Voltage Min | 4.5V |
| IC Case / Package | NSOIC |
| No. of Nodes | - |
| Fail Safe | - |
| Operating Temperature Max | 70°C |
| Qualification | - |
| SVHC | No SVHC (04-Feb-2026) |
Technical Docs (3)
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Legislation and Environmental
| Country of Origin: Country in which last significant manufacturing process was carried outCountry of Origin: | Malaysia Country in which last significant manufacturing process was carried out |
|---|---|
| Tariff No: | 85423990 |
| US ECCN: | EAR99 |
| EU ECCN: | NLR |
| RoHS Compliant: | Yes RoHS |
| RoHS Phthalates Compliant: | Yes RoHS |
| SVHC: | No SVHC (04-Feb-2026) |
| Download Product Compliance Certificate | Product Compliance Certificate |
| Weight (kg): | .000454 |