IRMCK343 Datasheet, PDF (31/35 Pages) International Rectifier – Sensorless Motor Control IC for Appliances

IRMCK343
9 Pin List
Pin
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Pin Name
XTAL0
XTAL1
P1.0/T2
Internal IC
Pull-up
/Pull-down
P1.1/RXD
P1.2/TXD
P1.3/SYNC/
SCK
P1.4/CAP
P1.5
P1.6
P1.7
VDD2
VSS
VDD1
P2.0/NMI
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6/
AOPWM0
P2.7/
AOPWM1
VDD2
VSS
AIN0
AVDD
AVSS
AIN1
CMEXT
AREF
IFB-
IFB+
Pin
Type Description
I Crystal input
O Crystal output
I/O Discrete programmable I/O or Timer/Counter 2
input
I/O Discrete programmable I/O or UART receive
input
I/O Discrete programmable I/O or UART transmit
output
I/O Discrete programmable I/O or SYNC output or
SPI clock
I/O Discrete programmable I/O or Capture Timer
input
I/O Discrete programmable I/O
I/O Discrete programmable I/O
I/O Discrete programmable I/O
P 1.8V digital power
P Digital common
P 3.3V digital power
I/O Discrete programmable I/O or Non-maskable
Interrupt input
I/O Discrete programmable I/O
I/O Discrete programmable I/O
I/O Discrete programmable I/O
I/O Discrete programmable I/O
I/O Discrete programmable I/O
I/O Discrete programmable I/O or PWM 0 output
I/O Discrete programmable I/O or PWM 1 output
P 1.8V digital power
P Digital common
I Analog input channel 0, 0-1.2V range, needs to
be pulled down to AVSS if unused
P 1.8V analog power
P Analog common
I Analog input channel 1, 0-1.2V range, needs to
be pulled down to AVSS if unused
O Unbuffered 0.6V output. Capacitor needs to be
connected.
O Analog reference voltage output (0.6V)
I Single shunt current sensing OP amp input (-)
I Single shunt current sensing OP amp input (+)
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