Low Power 3V 16Mbps RS485 Transceivers (Features 8-pin, Half Duplex)

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The ZT3070E series devices are 3V differential data line transceivers for RS485/RS422 communication that consist of one driver and one receiver with high level of ESD protection. They are designed for balanced transmission lines interface that meet ANSI standard TIA/EIA-485-A and ISO 8482:1987(E) specifications.

The ZT3070E series devices span out with half or full duplex, data rate guaranteed at 250Kbps, 500Kbps or 16Mbps, and allow 1/8 unit load that fan out 256 devices sharing a common bus. The I/Os are enhanced-electrostatic discharge (ESD) protected, exceeding ±15Kv Human Body Model (HBM).


● Meets or exceeds the requirements of ANSI Standard TIA/EIA-485-A and ISO 8482:1987(E) specifications for Vcc at +3.3V ±10%
● Low quiescent current – 0.5mA typ., 1.5mA max
● Low shutdown current (where applicable) - 0.05μA typical, 10μA max
● Guaranteed standard data rate 250Kbps, 500Kbps, or 16Mbps
● True Fail-Safe (Open and Short) Receiver
● -7V to +12V common-mode input voltage range
● Half-Duplex or Full-Duplex configuration
● Allows up to 1/8 unit load (256 devices) on the same common bus
● Controlled driver output slew rate and receiver input filtering
● Active-high driver enable and active-low receiver enable
● ESD Protection on bus terminals
-- ±15kV Human Body Model (HBM)
● Drop-in Replacements for MAX3070E, MAX3071E, MAX3072E, MAX3073E, MAX3075E, MAX3076E, MAX3077E, MAX3078E

Target Applications

RS-422/RS-485 communications
Utility meters
Industrial process control
Building automation
Level translators
Transceivers for EMI-sensitive applications
Routers and HUBs
Industrial-controlled Local Area Networks
Industrial PCs, embedded PCs and peripherals
Industrial, security CATV and camera applications



Technical Documentation

Product Brief, Product Introduction and Datasheet

ZT3078E Product Brief

Release Date

File Size
305.5 KB

ZT3078E Datasheet


Release Date

File Size
1.5 MB