MAX3485ESA+T 接口IC MAXIM

MAX3485ESA+T

3.3V-Powered, 10Mbps and Slew-Rate-Limited  True RS-485/RS-422 Transceivers

RS-422/RS-485 接口 IC 3.3V 10Mbps Transceiver

MAX3485ESA+T General Description

The MAX3485ESA+T 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.

MAX3485ESA+T 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