Ata6830, Pin description – Rainbow Electronics ATA6830 User Manual
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ATA6830
4575B–BCD–01/03
Pin Description
Pin
Symbol
Function
1
VBAT1A
Battery voltage
2
n.c.
Not connected
3
SM1A
Connection for stepping motor winding A
4
SRA
Sense resistor A connection
5
SM2A
Connection for stepping motor winding A
6
n.c.
Not connected
7
VBAT2A
Battery voltage
8
n.c.
Not connected
9
SCI1
Test pin, please connect to ground for EMC reasons
10
SCO1
Test pin, please connect to ground for EMC reasons
11
SCI2
Test pin, please connect to ground for EMC reasons
12
SCO2
Test pin, please connect to ground for EMC reasons
13
TA
Test pin, please connect to ground for EMC reasons
14
TTEMP
Test pin, please connect to ground for EMC reasons
15
VBAT2B
Battery voltage
16
n.c.
Not connected
17
SM2B
Connection for stepping motor winding B
18
SRB
Sense resistor B connection
19
SM1B
Connection for stepping motor winding B
20
n.c.
Not connected
21
VBAT1B
Battery voltage
22
BUS
Receives the control instructions via the single wire bus from the controller
23
VDD
5 V supply voltage output
24
VSS
Digital signal ground
25
AGND
Analog signal ground
26
RSET
Reference current setting. Connected externally with a resistor to AGND. The value of the resistor
determines all internal current sources and sinks.
27
COS
Oscillator pin, connected externally with a capacitor to AGND. The value of the capacitance determines
the chopper frequency and the baud rate for data reception.
28
n.c.
Not connected