15MBd Dual-channel Bi-directional, Extended Temperature Optocoupler

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The Broadcom ACFL-6211U is an industrial-grade, dual-channel optocoupler device designed for bi-directional digital communications. The device has two optocoupler channels internally aligned 180 degrees of each other, providing optimum chip pin-out configuration for bi-directional Tx/Rx data communication design and board layout. The two channels are electrically independent and galvanically isolated, providing an ideal isolated bi-directional system communication interface.

The device is optimized for high speed systems supporting data rates up to 15 MBd and packaged in a compact SSO-12 package comparable to the SSO-8 footprint.


  • Operating Temperature from -40 °C to +125 °C
  • 5V CMOS Output
  • 8mm Creepage and Clearance
  • Data Rates up to 15 MBd
  • LED Current Drive (IF): 4 to 15 mA
  • Low Propagation Delay: 35 ns (max)
  • Vcc Range: 3 to 5.5 V
  • Compact, Auto-Insertable Stretched SO12 Package
  • Worldwide Safety Approval:
- UL 1577 approval, Viso = 5,000 Vrms for 1 min. 
- CSA Component Acceptance Notice 5 
- IEC 60747-5-5, Viorm = 1,140 Vpeak


  • CANBus and SPI Communications Interface
  • High Temperature Digital Signal Isolation
  • Digital Isolation for A/D and D/A Conversion
  • Power Transistor Isolation 

Lifecycle Status


Substance Compliance

  • RoHS
    Pb-free options
Specification Value
Lifecycle Active
Distrib. Inventory Yes
IF Min. (mA) 4.0
RoHS6 Compliant Pb-free options only
Product Type High Speed CMOS Logic Gate
Package Stretched SO12
CTR Max. (%) N.A.
CTR Min. (%) N.A.
PWD (max.) 12
Tpsk Max In Ns 15
CMR (min.) (V/µs) 15000.0
Vcm (V) 1000.0
UL Insulation Rating Viso (VRMS) 5000.0
IEC Maximum Working Insulation Voltage Viorm (VPEAK) 1140.0
Prop Delay (tPHL) Max. (µs) 0.035
Prop Delay (tPLH) Max. (µs) 0.035
Data Sheet1 i
Technical Notes1 i
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