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SN65HVD12

ACTIVE

3.3V Differential Transceiver

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Data sheet

SN65HVD12

ACTIVE
Data sheet Order now

Product details

Number of receivers 1 Number of transmitters 1 Duplex Half Supply voltage (nom) (V) 3.3 Signaling rate (max) (Mbps) 1 Fault protection (V) -9 to 14 Common-mode range (V) -7 to 12 Number of nodes 256 Isolated No Supply current (max) (µA) 15500 Rating Catalog Operating temperature range (°C) -40 to 85
Number of receivers 1 Number of transmitters 1 Duplex Half Supply voltage (nom) (V) 3.3 Signaling rate (max) (Mbps) 1 Fault protection (V) -9 to 14 Common-mode range (V) -7 to 12 Number of nodes 256 Isolated No Supply current (max) (µA) 15500 Rating Catalog Operating temperature range (°C) -40 to 85
PDIP (P) 8 92.5083 mm² 9.81 x 9.43 SOIC (D) 8 29.4 mm² 4.9 x 6
  • Operates with a 3.3-V supply
  • Bus-pin ESD protection exceeds 16-kV HBM
  • 1/8 Unit-load option available (up to 256 nodes on the bus)
  • Optional driver output transition times for signaling rates (1)of 1 Mbps, 10 Mbps, and 32 Mbps
  • Meets or exceeds the requirements of ANSI TIA/EIA-485-A
  • Bus-pin short-circuit protection from –7 V to 12 V
  • Low-current standby mode: 1 µA, typical
  • Open-circuit, idle-bus, and shorted-bus fail-safe receiver
  • Thermal shutdown protection
  • Glitch-free power-up and power-down protection for hot-plugging applications
  • SN75176 footprint

(1)The signaling rate of a line is the number of voltage transitions that are made per second expressed in the units bps (bits per second).
  • Operates with a 3.3-V supply
  • Bus-pin ESD protection exceeds 16-kV HBM
  • 1/8 Unit-load option available (up to 256 nodes on the bus)
  • Optional driver output transition times for signaling rates (1)of 1 Mbps, 10 Mbps, and 32 Mbps
  • Meets or exceeds the requirements of ANSI TIA/EIA-485-A
  • Bus-pin short-circuit protection from –7 V to 12 V
  • Low-current standby mode: 1 µA, typical
  • Open-circuit, idle-bus, and shorted-bus fail-safe receiver
  • Thermal shutdown protection
  • Glitch-free power-up and power-down protection for hot-plugging applications
  • SN75176 footprint

(1)The signaling rate of a line is the number of voltage transitions that are made per second expressed in the units bps (bits per second).

The SN65HVD10, SN75HVD10, SN65HVD11, SN75HVD11, SN65HVD12, and SN75HVD12 bus transceivers all combine a 3-state differential line driver, as well as a differential input line receiver that operates with a single 3.3-V power supply. They are designed for balanced transmission lines and meet or exceed ANSI standard TIA/EIA-485-A and ISO 8482:1993. These differential bus transceivers are monolithic integrated circuits, designed for bidirectional data communication on multipoint bus-transmission lines. The drivers and receivers have active-high and active-low enables, that can be externally connected together to function as direction control. Very low device standby supply current, can be achieved by disabling the driver and the receiver.

The driver differential outputs and receiver differential inputs connect internally to form a differential input/output (I/O) bus port, that is designed to offer minimum loading to the bus whenever the driver is disabled or VCC = 0. These parts feature wide positive and negative common-mode voltage ranges, making them suitable for party-line applications.

The SN65HVD10, SN75HVD10, SN65HVD11, SN75HVD11, SN65HVD12, and SN75HVD12 bus transceivers all combine a 3-state differential line driver, as well as a differential input line receiver that operates with a single 3.3-V power supply. They are designed for balanced transmission lines and meet or exceed ANSI standard TIA/EIA-485-A and ISO 8482:1993. These differential bus transceivers are monolithic integrated circuits, designed for bidirectional data communication on multipoint bus-transmission lines. The drivers and receivers have active-high and active-low enables, that can be externally connected together to function as direction control. Very low device standby supply current, can be achieved by disabling the driver and the receiver.

The driver differential outputs and receiver differential inputs connect internally to form a differential input/output (I/O) bus port, that is designed to offer minimum loading to the bus whenever the driver is disabled or VCC = 0. These parts feature wide positive and negative common-mode voltage ranges, making them suitable for party-line applications.
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Type Title Date
* Data sheet SNx5HVD1x 3.3-V RS-485 Transceivers datasheet (Rev. P) PDF | HTML 16 Feb 2022
EVM User's guide RS-485 Half-Duplex EVM User's Guide (Rev. C) PDF | HTML 01 Sep 2021
Analog Design Journal 2Q 2013 Issue Analog Applications Journal 16 Apr 2013
Analog Design Journal RS-485 failsafe biasing: Old versus new transceivers 16 Apr 2013
Application note RS-485 for E-Meter Applications (Rev. A) 06 Aug 2004
Application note The RS-485 Unit Load and Maximum Number of Bus Connections 15 Mar 2004

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