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Datasheet Replacement Marking Code
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25LC128
A3977S (8)A3977 (16)A397 (40)A39 (299)
Allegro MicroSystems, LLC.

A3977SLPTR-T

Bipolar Motor Driver DMOS Step/Direction 28-TSSOP-EP
Allegro MicroSystems, LLC.

A3977SED

Bipolar Motor Driver DMOS Step/Direction 44-PLCC (16.59x16.59)
Allegro MicroSystems, LLC.

A3977SEDTR

Bipolar Motor Driver DMOS Step/Direction 44-PLCC (16.59x16.59)
Allegro MicroSystems, LLC.

A3977SLP

Bipolar Motor Driver DMOS Step/Direction 28-TSSOP-EP
Allegro MicroSystems, LLC.

A3977SLPTR

Bipolar Motor Driver DMOS Step/Direction 28-TSSOP-EP
Allegro MicroSystems, LLC.

A3977SED-T

Bipolar Motor Driver DMOS Step/Direction 44-PLCC (16.59x16.59)
Allegro MicroSystems, LLC.

A3977SLP-T

Bipolar Motor Driver DMOS Step/Direction 28-TSSOP-EP
Allegro MicroSystems, LLC.

A3977SEDTR-T

Bipolar Motor Driver DMOS Step/Direction 44-PLCC (16.59x16.59)
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