Ultra Low Power 10MBd Digital CMOS Optocoupler

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The ACPL-K64L (dual-channel, stretched SO-8 package) optocoupler is part of the Broadcom ultra low power ACPL-x6xL digital optocouplers that combine an AlGaAs light emitting diode (LED) and an integrated high gain photodetector. The optocoupler consumes extremely low power, at maximum 1.3mA IDD current per channel across temperature. With a forward LED current as low as 1.6 mA most microprocessors can directly drive the LED.

ACPL-K64L is UL recognized with isolation voltage of 5000 Vrms for 1 minute, and IEC 60747-5-5 working insulation voltage VIORM of 1140 VPEAK.

An internal Faraday shield provides a guaranteed common mode transient immunity specification of 20 kV/µs. Maximum AC and DC circuit isolation is achieved while maintaining TTL/CMOS compatibility.

The optocouplers CMOS outputs are slew-rate controlled and is designed to allow the rise and fall time to be controlled over a wide load capacitance range.

The ACPL-x6xL series operates from both 3.3 V and 5 V supply voltages with guaranteed AC and DC performance from –40°C to +105°C.

These low-power optocouplers are suitable for high speed logic interface applications.


  • Ultra low IDD current: 1.3mA/channel max
  • Low input current: 1.6mA min
  • Built-in slew-rate controlled outputs
  • 20 kV/μs min Common Mode Rejection (CMR) at VCM = 1000 V
  • High Speed: 10 MBd min
  • Guaranteed AC and DC performance over wide temperature: -40°C to +105°C
  • Stretched SO-8 package
  • Safety Approval
    - UL 1577 recognized - 5000 V rms for 1 minute
    - CSA Approval
    - IEC/EN/DIN EN 60747-5-5 Approval for Reinforced Insulation
  • RoHS compliant
  • Options available are:
    500 = Tape and Reel Packaging Option
    060 = IEC/EN/DIN EN 60747-5-5 VIORM = 1140 VPEAK
    XXXE = Lead Free Option


  • Communication Interface: RS485, CANBus, I2C
  • Microprocessor System Interfaces
  • Digital isolation for A/D, D/A converstion 

Lifecycle Status


Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
Distrib. Inventory Yes
RoHS6 Compliant Y
Product Type 10 MBd Logic Gate
Package Stretched SO8
VDD (V) 3.3/5
IF Min. (mA) 1.6
Prop Delay (tPLH) Max. (µs) 80.0
Prop Delay (tPHL) Max. (µs) 80.0
CMR (min.) (V/µs) 20000.0
Vcm (V) 1000.0
UL Insulation Rating Viso (VRMS) 5000.0
IEC Maximum Working Insulation Voltage Viorm (VPEAK) 1140
Application Note3 i
Data Sheet1 i
Options Data Sheet3 i
Product Change Notice (PCN)5 i
Regulatory Certificate2 i
Reliability Data Sheet3 i
Selection Guide1 i
Specification1 i
Technical Notes1 i
White Papers2 i
FAQs1 i
Promotional Material1 i


Ultra Low Power 10MBd Digital CMOS Optocoupler


Ultra Low Power 10MBd Digital CMOS Optocoupler


Ultra Low Power 10MBd Digital CMOS Optocoupler


Ultra Low Power 10MBd Digital CMOS Optocoupler


Ultra Low Power 10MBd Digital CMOS Optocoupler


Ultra Low Power 10MBd Digital Optocoupler


Ultra Low Power 10MBd Digital CMOS Optocoupler