| ZT483H -- Low Power 5V 250Kbps 256-Fanout RS485 Transceivers | |
The ZT485H series devices are 5V 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 ZT485H series devices spans out with half or full duplex, data rate guaranteed at 250K bit per second or 10Mbps, and allow one-eighth of an 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).
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Feature: - Meets or exceeds the requirements of ANSI Standard TIA/EIA-485-A and ISO 8482:1987(E) specifications for V cc at +5V ±10%
- Low quiescent current - 0.5mA typ., 1mA max
- Low shutdown current (where applicable) - 1μA typical, 10μA max
- Guaranteed standard data rate 250Kbps or 10Mbps
- True Fail-Safe (Open, Short, Bus Idle) Receiver
- -7V to +12V common-mode input voltage range
- Half-Duplex mode 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)
- Alternative replacement for MAX308x, MAX1308x, SN75HVD308x, SN65HVD308x
- Standard fanout driving 1 unit load (32 devices) on the ZT485E Series
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| Target Applications: | - RS422/RS485 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
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Pin Configuration and Application Diagram |
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Selection Guide |
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Technical Documentation | |
Product Brief, Product Introduction and Datasheet |
| | ZT483H Brief | | 327.8 KB | | 2015-04-30 | |
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