1-36 (No.49834)
6.3 BA6956AN (IC981) : Reversible motor driver
• Block diagram
• Pin function
• Truth table
6.4 BU4066BCFV-X (IC322,IC351) : Quad analog switch
• Pin layout & Block diagram
TSD
CONTROL LOGIC
1 2 3 4 5 6 7 8 9
REF
OUT2
RNF
OUT1
VM
Vcc
FIN
GND
RIN
Pin No. Symbol Function
1 VREF Output high voltage level control terminal
2 OUT2 Output terminal for motor
3 RNF GND of driver division
4 OUT1 Output terminal for motor
5 VM Power supply for driver division
6 Vcc Power supply for signal division
7 FIN Input terminal for control logic
8GNDGND
9 RIN Input terminal for control logic
FIN RIN OUT1 OUT2 MODE
H L H L Forward rotation mode
L H L H Reverse rotation mode
H H L L Break Mode
L L OPEN OPEN Stand-by mode
14 13 12 11 810 9
1234 756
VDD C1 C4 I/O4 I/O3O/I4 O/I3
I/O1 O/I1 O/I2 I/O2 VssC2 C3
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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