LC898240_16 Datasheet, PDF (3/23 Pages) ON Semiconductor – High Efficient Stepper Motor Controller

APPLICATION BLOCK DIAGRAM
LC898240
3.3V
+
22uF 0.1uF 0.1uF
LC898240
DVDD1
AVDD
AVSS
3.3V
+
0.1uF 22uF
5V
+
22uF 0.1uF
DVDD2
DVSS
VREFI
VREFO
Rref1
Rref2
LVXXXXX
VREF
clock in
reset in
SPI
status out
CLK
RSB
SO_M
CSB
CSB_M
SCK
CSB_E
SI
SO_E
SO
ST(O)
START
STP
RSTI
RSTO
OE(O)
GAD
FR(O)
STS1~0 MD1~0(O)
WSEL3~0 MD2(O)
INTP1~0
OUTAI
TSMOD
OUTBI
HOLD
AMPO
WP
ADCI
0.1uF
ST
STEP
RST
OE
FR
MD2~1
OUT1A
OUT1B
OUT2A
OUT2B
Rata1
Rfil
Rata2
Bipolar Motor
Ratb1
Ratb2
Cfil
Figure 2 Example of SPI control for IO port control driver
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