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L9942 Datasheet(PDF) 29 Page - STMicroelectronics

Part # L9942
Description  Integrated stepper motor driver for bipolar stepper motors with microstepping and programmable current profile
PDF  37 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9942 Datasheet(HTML) 29 Page - STMicroelectronics

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L9942
6 Logic with SPI - Electrical Characteristics
29/37
Figure 12. SPI - DO Valid Data Delay Time and Valid Time
Figure 13. DO Enable and Disable Time
0.8 VCC
0.8 VCC
0.8 VCC
0.2 VCC
0.2 VCC
0.2 VCC
CLK
DO
(low to high)
DO
(high to low)
0.5 VCC
t
r in
t
rDO
t
f DO
t
dDO
t
fin
CS N
t
f i n
r i n
t
DO
DO
e n D O tr i L
t
t
dis D O L t r i
50 %
0. 8 V C C
0. 2 V C C
50 %
50 %
e n D O tr i H
t
t
dis D O H t r i
C
= 10 0 p F
L
C
= 10 0 p F
L
pu l l - u p l o a d t o V C C
pu l l - d o w n l o ad t o G N D



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