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H21LTB_04 Datasheet, PDF (2/9 Pages) Fairchild Semiconductor – OPTOLOGIC OPTICAL INTERRUPTER SWITCH
H21LTB
H21LTI
Part Number Definitions
H21LTB
H21LTI
H21LOB
H21LOI
Totem-pole, buffer output
Totem-pole, inverter output
Open-collector, buffer output
Open-collector, inverter output
OPTOLOGIC® OPTICAL
INTERRUPTER SWITCH
H21LOB
H21LOI
Input/Output Table
Part Number
H21LTB
H21LTB
H21LTI
H21LTI
H21LOB
H21LOB
H21LOI
H21LOI
LED
On
Off
On
Off
On
Off
On
Off
Output
High
Low
Low
High
High
Low
Low
High
© 2004 Fairchild Semiconductor Corporation
Page 2 of 9
11/2/04