MAX3491AEASD+
Interface ICs
Technical Specifications
| Type | Description |
|---|---|
| Data Rate | 20 Mbps |
| Quiescent Current | 2.2 mA |
| Nodes | 32 |
| ESD Protect | ±15kV |
| Communication Mode | Full-Duplex |
| Number of Drivers | 1 |
| Type | Description |
|---|---|
| Number of Receivers | 1 |
| Supply Voltage | 3V~3.6V |
| Type | Transceiver |
| Operating Temperature | -40°C~+125°C |
| Features | Tx/Rx enable;Enable shutdown;Overcurrent Protection;Thermal shutdown protection;Low-power mode |
| Package / Case | SO-14 |
Product Introduction
The MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 are 3.3V, low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The MAX3483 and MAX3488 feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250kbps. The partially slew-rate-limited MAX3486 transmits up to 2.5Mbps. The MAX3485, MAX3490, and MAX3491 transmit at up to 10Mbps.
Drivers are short-circuit current-limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if both inputs are open circuit.
The MAX3488, MAX3490, and MAX3491 feature full-duplex communication, while the MAX3483, MAX3485, and MAX3486 are designed for half-duplex communication.
Features
- Operate from a Single 3.3V Supply— No Charge Pump!
- Interoperable with +5V Logic
- 8ns Max Skew (MAX3485/MAX3490/MAX3491)
- Slew-Rate Limited for Errorless Data Transmission (MAX3483/MAX3488)
- 2nA Low-Current Shutdown Mode (MAX3483/MAX3485/MAX3486/MAX3491)
- 7V to +12V Common-Mode Input Voltage Range
- Allows up to 32 Transceivers on the Bus
- Full-Duplex and Half-Duplex Versions Available
- Industry Standard 75176 Pinout (MAX3483/MAX3485/MAX3486)
- Current-Limiting and Thermal Shutdown for Driver Overload Protection
Applications
- Low-Power RS-485/RS-422 Transceivers
- Telecommunications
- Transceivers for EMI-Sensitive Applications
- Industrial-Control Local Area Networks
Datasheet
Alternative Parts
Common MAX3491AEASD+ alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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