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ZT487E -- 低功耗5V 250Kbps 128-Fanout RS485收发器 |
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The ZT487E 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 ZT487E devices spans out with half duplex, data rate guaranteed at 250K bit per second, and allow one-fourth of an unit load that fan out 128 devices sharing a common bus. The I/Os are enhanced-electrostatic discharge (ESD) protected, exceeding ±15kV Human Body Model (HBM).
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规格: - Meets or exceeds the requirements of ANSI Standard TIA/EIA-485-A and ISO 8482:1987(E) specifications for Vcc at +5V ±5%
- Low quiescent current - 0.5mA typ., 1mA max
- Low shutdown current (where applicable) - 0.01μA typical, 10μA max
- Guaranteed standard data rate 250Kbps
- Thermal shutdown protection
- -7V to +12V common-mode input voltage range
- Half-Duplex configuration
- Allows up to 1/4 unit load (128 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 MAX487E, SN75LBC182
- Standard fanout driving 1 unit load (32 devices) available on the ZT487E
| | 目标应用: | - 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 application
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引脚配置与应用示意图 |
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选型指南 |
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