H
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 Potentiom-
eters to Digital Data Input
Buses
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.
5965-5894E
2-178
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
