HCTL-2022 Avago Technologies US Inc., HCTL-2022 Datasheet - Page 21

• Manufacturer Part Number: HCTL-2022
• Description: QUADRATURE DECODER/COUNTER INTER
• Manufacturer: Avago Technologies US Inc.
• Type: Quadrature Decoder/ Counter Interface ICr

Specifications of HCTL-2022

• Package / Case: 20-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Voltage - Supply: 4.5 V ~ 5.5 V
• Applications: Encoder to Microprocessor
• Interface: 8-Bit Tristate
• Maximum Operating Temperature: + 100 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: Q2414340A

Ordering Information
For product information and a complete list of distributors, please go to our web site:
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Limited in the United States and other countries.
Data subject to change. Copyright © 00 Avago Technologies Limited. All rights reserved. Obsoletes 99-000EN
AV0-009EN - January , 00

Actions
1. At first, Port B4, B5, and B6 are setup for 4X encoding
2. The HCTL-2032 detects that OE/ are low on the next
3. SEL1 and SEL2 are setup to select the appropriate
4. Step 3 is repeated by changing the SEL1 and SEL2
5. The HCTL-2032 detects OE/ high on the next falling
6. For displaying purposes, the data is arranged in 32-
HCTL - 20 XX - XX
and X/Y axis selection.
falling edge of the CLK and asserts the internal inhibit
signal. Data can be read without regard for the phase
of the CLK.
bytes. The “Get_hi” subroutine is called and the data is
read into the AVR.
combinations and specific subroutine is called to read
in the appropriate data.
edge of the CLK. The program set OE/ high by writing
the correct value to the respective Port. This causes
the data lines to be tristated. On the next rising CLK
edge new data is transferred from the counter to the
position data latch.
bit data by shifting the MSB to the left through
multiplication.
32
32
32
22
Blank
SC
SCT
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32-PDIP Package
32-SOIC Package
32-SOIC Package in Tape and Reel (1000 Pcs / Reel)
20-PDIP Package
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