2001 Microchip Technology Inc. DS80103A-page 1
HCS201
The HCS201 parts you have received conform func-
tionally to the Device Data Sheet (DS40198), except for
the anomalies described below.
None.
Clarifications/Corrections to the Data Sheet:
In the Device Data Sheet (DS40198), the follo wing clar-
ifications and corrections should be noted.
Page 18 of DS40198, entitl ed “KEELOQ® Code H opping
Encoder, for Microchip part HCS201 has been
changed. Table 8-3, AC Characteristics contains
updated information in the Stepper reference voltage
param ete r. The t ab le be low h as been revi se d to ref lec t
these changes.
Standard Operating Conditions (unless otherwis e specified):
Commercial(C): 0°C TA 70°C
Industrial(I): -40°C TA +85°C
Symbol Parameters Min Typ. Max. Units Conditions
TBP Time to second button press 10+Code
Word Time 26+Code
Word Time ms (Note 1)
TTD Transmit delay from button det ect 12 26 ms
TDB Debounce del ay 6 20 ms
TTO Auto-shutoff timeout period 27 s(Note 2)
TSStart pulse delay 4.5 ms
FSTEP Stepper output frequen cy 125 200 250 kHz
VSTEP Stepper reference volt age 5.5 6.5 7.5 V VDDB = 3V
Note 1: TBP is the time in which a second button can be pressed without completion of the first code word (the
intentio was to press a combination of buttons).
2: The auto-shutoff time-out period is not tested.
3: All parameters in this table are characterized but not tested.
HCS201 Rev. A Silicon Errata Sheet
HCS201
DS80103A-page 2 2001 Microchip Technology Inc.
REVISION HISTORY
Rev A Document
First revision of this document.
2001 Microchip Technology Inc. DS80103A-page 3
HCS201
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© 2001, M icr oc hip Technology Inco rpo rated, Printed in
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DS80103A-page 4 2001 Microchip Technology Inc.
All rights reserved. © 2001 Microchip Technology Incorporated. Printed in the USA. 3/01 Printed on recycled paper.
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