Quadrature Decoder/Counter
Interface ICs
Technical Data
HCTL-2000
HCTL-2016
HCTL-2020
Features
• Interfaces Encoder to
Microprocessor
• 14 MHz Clock Operation
• Full 4X Decode
• High Noise Immunity:
Schmitt Trigger Inputs Digital
Noise Filter
• 12 or 16-Bit Binary Up/
Down Counter
• Latched Outputs
• 8-Bit Tristate Interface
• 8, 12, or 16-Bit Operating
Modes
• Quadrature Decoder Output
Signals, Up/Down and Count
• Cascade Output Signals, Up/
Down and Count
• Substantially Reduced
System Software
Applications
• Interface Quadrature
Incremental Encoders to
Microprocessors
• Interface Digital Potentiometers to Digital Data Input
Buses
Note: Agilent Technologies
encoders are not recommended
for use in safety critical
applications. Eg. ABS braking
systems, power steering, life
support systems and critical care
medical equipment. Please
contact sales representative if
more clarification is needed.
Description
The HCTL-2000, 2016, 2020 are
CMOS ICs that perform the
quadrature decoder, counter, and
bus interface function. The
HCTL-20XX family is designed to
improve system performance
Devices
Part Number
HCTL-2000
HCTL-2016
HCTL-2020
Description
12-bit counter. 14 MHz clock operation.
All features of the HCTL-2000. 16-bit counter.
All features of the HCTL-2016. Quadrature decoder output
signals. Cascade output signals.
Package Drawing
A
A
B
ESD WARNING: Standard CMOS handling precautions should be observed with the HCTL-20XX family
ICs.
