1-524
V
CC
V
O
V
E
GND
H
Hermetically Sealed,
Very High Speed,
Logic Gate Optocouplers
Technical Data
Features
• Dual Marked with Device
Part Number and DESC
Drawing Number
• Manufactured and Tested on
a MIL-PRF-38534 Certified
Line
• QML-38534, Class H and K
• Three Hermetically Sealed
Package Configurations
• Performance Guaranteed
over -55°C to +125°C
• High Speed: 40 M bit/s
• High Common Mode
Rejection 500 V/µs
Guaranteed
• 1500 Vdc Withstand Test
Voltage
• Active (Totem Pole) Outputs
• Three Stage Output Available
• High Radiation Immunity
• HCPL-2400/30 Function
Compatibility
• Reliability Data
• Compatible with TTL, STTL,
LSTTL, and HCMOS Logic
Families
Applications
• Military and Space
• High Reliability Systems
• Transportation, Medical, and
Life Critical Systems
• Isolation of High Speed
Logic Systems
Each channel contains an AlGaAs
light emitting diode which is
optically coupled to an integrated
high gain photon detector. This
combination results in very high
HCPL-540X*
5962-89570
HCPL-543X
Functional Diagram
Multiple Channel Devices
Available
Single Channel DIP
Input Enable Output
On (H) L L
Off (L) L H
On (H) H Z
Off (L) H Z
Truth Tables
(Positive Logic)
Multichannel Devices
Input Output
On (H) H
Off (L) L
HCPL-643X
5962-89571
*See matrix for available extensions.
• Computer-Peripheral
Interfaces
• Switching Power Supplies
• Isolated Bus Driver
(Networking Applications)(5400/1 Only)
• Pulse Transformer
Replacement
• Ground Loop Elimination
• Harsh Industrial
Environments
• High Speed Disk Drive I/O
• Digital Isolation for A/D,
D/A Conversion
Description
These units are single and dual
channel, hermetically sealed
optocouplers. The products are
capable of operation and storage
over the full military temperature
range and can be purchased as
either standard product or with
full MIL-PRF-38534 Class Level
H or K testing or from the
appropriate DESC Drawing. All
devices are manufactured and
tested on a MIL-PRF-38534
certified line and are included in
the DESC Qualified Manufacturers List QML-38534 for Hybrid
Microcircuits.
CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to
prevent damage and/or degradation which may be induced by ESD.
5965-3004E