AT5550
2-Channel Motor Driver for DSC
Input-output logic table
Input
Output
Mode
IN1A
IN1B
IN2A
IN2B
OUT1A OUT1B OUT2A OUT2B
L
L
L
L
Z
Z
Z
Z
Standby
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
H
Keep the previous output state
H
H
Input
Output
Mode
IN1A
IN1B
IN2A
IN2B
OUT1A OUT1B OUT2A OUT2B
L
L
L
L
Z
Z
Z
Z
Standby
H
H
L
L
L
L
L
H
L
L
L
H
H
H
L
L
L
H
H
H
L
L
L
L
L
L
L
L
L
H
H
H
H
H
Z
L
L
L
Z
H
L
L
Z
H
H
H
Z
L
Z
H
H
H
Z
L
L
L
Z
L
L
L
Z
H
H
H
1,2 phase
excitation
H
H
Keep the previous output state
H
H
7F, NO.9, Park Avenue II, Science-Based Industrial Park, Hsinchu 300, Taiwan, R.O.C.
Tel: 886-3-563-0878
8/7/2006 REV:1.2
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
Email: service@aimtron.com.tw
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